全量上传

.gitignore

@@ -24,3 +24,6 @@
 hs_err_pid*
 replay_pid*
 
+node_modules
+.idea
+target

bigdata/hive.sql

@@ -0,0 +1,25 @@
+
+CREATE DATABASE library;
+USE library;
+
+-- 借书趋势
+CREATE TABLE  ods_order_count  AS
+SELECT
+    DATE_FORMAT(time, '%Y-%m') AS month,
+    COUNT(*) AS orders
+FROM orders
+GROUP BY month
+ORDER BY month;
+-- 用户画像-不同用户借书数量
+CREATE table ods_user_type as
+SELECT
+    u.email AS name,
+    COUNT(*) AS value
+FROM
+    orders o
+JOIN
+    user u ON o.user_id = u.id
+GROUP BY
+    u.email
+ORDER BY
+    value DESC;

bigdata/mysql.sql

@@ -0,0 +1,6 @@
+
+
+create  table ods_order_count(
+    name varchar(50),
+    value int(10)
+);

bigdata/sqoop.sh

@@ -0,0 +1,11 @@
+
+
+sqoop import-all-tables \
+--connect jdbc:mysql://localhost:3306/library-recommendation \
+--username root \
+--password 123456 \
+--hive-import \
+--hive-overwrite \
+--create-hive-table \
+--hive-database library \
+--num-mappers 1

files/1728614001968-项目训练营介绍.md

@@ -0,0 +1,34 @@
+## 做《项目训练营》星球的目的
+1. 目前很多小伙伴，特别是在校学生，缺少实战项目经验
+2. 有些小伙伴有点基础，想要通过项目实操提高自己的开发能力
+3. 网上找不到高质量的完整项目带敲教程，拿到源码也不懂原理，有些源码还没法运行，甚至代码不全
+4. 网上能找到的开源项目都比较大，很多小白用户一下子吃不了，甚至不会运行
+5. 星球是一个高质量的私域知识学习平台，能为大家的学习保驾护航
+6. 大部分初学者在自己学习的时候，遇到问题没法解决，星球内部所有项目都可以提供项目答疑
+## 星球提供的价值
+
+1. 星球内部分项目完整源码直接开放，可免费获取。其他项目可挑选**一个**最适合你的项目，直接领取源码。
+2. **（价值）**星球内部的所有实战项目均提供脚手架、详细的笔记和完整的带敲视频，可以跟着完整学习视频敲出来，学习过程中提供答疑。
+3. **星球内部的实战项目会一直更新，星球成员可以学习所有项目，具体项目列表如下（长期更新）**：[https://www.yuque.com/xiaqing-en2ii/skflxg/cayqu7tvpxrwt9tf](https://www.yuque.com/xiaqing-en2ii/skflxg/cayqu7tvpxrwt9tf)
+4. 星球内部会提供不同的专栏，其中除了上述实战项目外，还有学习资料，比如经典学习笔记、超全面试题等
+5. 星球内部会不定期分享学习经验，开发经验，工作经验，如果你有需要，也可以提供相应文档  
+6. 通过星球内部的学习，对很多初学者找实习找工作也有很大帮助。
+## 我进入星球能得到什么？
+
+1. 完整的实战项目，从0到1手把手带你敲出来，完全学会，变成自己的项目
+2. 学会常用主流技术栈的使用，比如springboot、mybatis、vue、MySQL、uniapp等等
+3. 学会前后端的开发流程、数据库的设计、前后端接口调用方式，达到独立开发项目的能力
+4. 在学习的过程中，可以获得星主或者合伙人的一对一答疑，为你的学习保驾护航
+5. 从小白成长为能独挡一面的六边形战士，不管是大学竞赛、毕业设计、做公司项目还是接私活，都游刃有余
+## 星球的玩法
+
+1. 星球目前定价99，历史最低价（后续不定期会派送优惠券），**价值拉满，历史最低，仅此一次！**
+2. 星球随着内部项目的增加，后面会涨价，现在加入能学习一年内所有开发的项目（至少30+个）。99相当于每天3毛钱不到，**早就是优势！**
+3. 星球不定期搞点小福利，比如送咖啡、喝奶茶打卡学习活动，共同营造一个良好的学习圈
+
+**微信扫码即可加入，或者网页端点击 **[**https://t.zsxq.com/13XD9LgLl**](https://t.zsxq.com/13XD9LgLl)** 加入**
+![项目训练营.jpg](https://cdn.nlark.com/yuque/0/2023/jpeg/751015/1697190549852-d549b9bb-41b6-4895-b84b-cb0eed6b8f26.jpeg#averageHue=%23bec3c0&clientId=uf493bfb5-158c-4&from=paste&height=314&id=HZ0TO&originHeight=1320&originWidth=1060&originalType=binary&ratio=1.25&rotation=0&showTitle=false&size=78728&status=done&style=none&taskId=u0fee2c6c-1814-4b30-8ad7-713e6bd1dc6&title=&width=252)
+## 星球专属编程小助手
+如果您在购买过程中有任何疑惑，可以咨询我们的客服小助手（仅限非技术问题）
+服务时间：工作日上午9:00 - 12:00  下午14:00 - 18:00
+![](https://cdn.nlark.com/yuque/0/2024/png/751015/1713232611921-bd89c17f-415c-477a-ba4b-d772378e6d68.png#averageHue=%23cdcdcd&clientId=u299b98da-3480-4&from=paste&height=199&id=Fp8aI&originHeight=391&originWidth=392&originalType=url&ratio=1.25&rotation=0&showTitle=false&status=done&style=none&taskId=ub21d4ab0-f522-44a0-affe-3a4325c218a&title=&width=200)

pom.xml

@@ -0,0 +1,82 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>3.3.1</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>com.example</groupId>
+    <artifactId>admin-api</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>springboot</name>
+    <description>springboot</description>
+    <properties>
+        <java.version>17</java.version>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.24</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.mybatis.spring.boot</groupId>
+            <artifactId>mybatis-spring-boot-starter</artifactId>
+            <version>3.0.3</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.mysql</groupId>
+            <artifactId>mysql-connector-j</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>cn.hutool</groupId>
+            <artifactId>hutool-all</artifactId>
+            <version>5.8.25</version>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <!-- 分页插件pagehelper -->
+        <dependency>
+            <groupId>com.github.pagehelper</groupId>
+            <artifactId>pagehelper-spring-boot-starter</artifactId>
+            <version>1.4.6</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.mybatis</groupId>
+                    <artifactId>mybatis</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <!--  JWT -->
+        <dependency>
+            <groupId>com.auth0</groupId>
+            <artifactId>java-jwt</artifactId>
+            <version>4.3.0</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

src/main/java/com/example/SpringbootApplication.java

@@ -0,0 +1,16 @@
+package com.example;
+
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.scheduling.annotation.EnableScheduling;
+
+@SpringBootApplication
+@MapperScan("com.example.mapper")
+@EnableScheduling
+public class SpringbootApplication {
+    public static void main(String[] args) {
+        SpringApplication.run(SpringbootApplication.class, args);
+    }
+
+}

src/main/java/com/example/common/Constants.java

@@ -0,0 +1,7 @@
+package com.example.common;
+
+public interface Constants {
+
+    String TOKEN = "token";
+    String USER_DEFAULT_PASSWORD = "123";
+}

src/main/java/com/example/common/MyScheduledTask.java

@@ -0,0 +1,86 @@
+package com.example.common;
+
+import com.example.entity.Orders;
+import com.example.mapper.OrdersMapper;
+import com.example.service.OrdersService;
+import lombok.Data;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+import org.springframework.web.client.RestTemplate;
+import java.security.SecureRandom;
+import java.util.HexFormat;
+import java.util.List;
+
+/**
+ *
+ * 1.在主方法加@EnableScheduling
+ */
+
+@Component
+@Slf4j
+public class MyScheduledTask {
+    @Autowired
+    OrdersMapper ordersService;
+
+    // 每5秒执行一次
+    @Scheduled(fixedRate = 5000)
+    public void runEveryFiveSeconds() {
+        System.out.println("⏰ 定时任务执行时间: " + java.time.LocalDateTime.now());
+        //需要检测的hex字段
+        List<Orders> list = ordersService.selectAll(null);
+        for (Orders itemEntity : list) {
+            if (!isValidEthereumHexId(itemEntity.getHex(),64)){
+                itemEntity.setHex(sendSetRequest(itemEntity.getId().toString(),itemEntity.toString()));
+                //更新数据
+                ordersService.updateByHexId(itemEntity);
+            }
+        }
+    }
+    public static String sendSetRequest(String key, String value) {
+        try {
+            RestTemplate restTemplate = new RestTemplate();
+            String url = "http://localhost:8080/set?key=" + key + "&value=" + value;
+            // 发送 GET 请求并解析返回 JSON 为 SetResponse 对象
+            ResponseEntity<SetResponse> response = restTemplate.getForEntity(url, SetResponse.class);
+            return response.getBody().data;
+        }catch (Exception e){
+            SetResponse setRequestService = new SetResponse();
+            setRequestService.setData(generate(40));
+            return setRequestService.data;
+        }
+    }
+    /**
+     * 判断是否为合法的以太坊Hex ID（例如：交易哈希、区块哈希、地址）
+     * @param hexId 要校验的字符串
+     * @param length 字符长度（40 = 钱包地址，64 = 交易哈希/区块哈希）
+     * @return true 表示合法，否则 false
+     */
+    public static boolean isValidEthereumHexId(String hexId, int length) {
+        if (hexId == null || !hexId.startsWith("0x")) {
+            return false;
+        }
+        String hexBody = hexId.substring(2);
+        String pattern = "^[0-9a-fA-F]{" + length + "}$";
+        return hexBody.matches(pattern);
+    }
+
+
+    // 内嵌的SetResponse类
+    @Data
+    public static class SetResponse {
+        private String msg;
+        private String data;
+    }
+
+    private static final SecureRandom secureRandom = new SecureRandom();
+    private static final HexFormat hexFormat = HexFormat.of();
+
+    public static String generate(int byteLength) {
+        byte[] randomBytes = new byte[byteLength];
+        secureRandom.nextBytes(randomBytes);
+        return "0x" + hexFormat.formatHex(randomBytes);
+    }
+}

src/main/java/com/example/common/Result.java

@@ -0,0 +1,70 @@
+package com.example.common;
+
+public class Result {
+
+    private String code;
+    private String msg;
+    private Object data;
+
+    public Result() {
+
+    }
+
+    public static Result success() {
+        Result result = new Result();
+        result.setCode("200");
+        result.setMsg("请求成功");
+        return result;
+    }
+
+    public static Result success(Object data) {
+        Result result = success();
+        result.setData(data);
+        return result;
+    }
+
+    public static Result error() {
+        Result result = new Result();
+        result.setCode("500");
+        result.setMsg("系统异常");
+        return result;
+    }
+
+    public static Result error(String code, String msg) {
+        Result result = new Result();
+        result.setCode(code);
+        result.setMsg(msg);
+        return result;
+    }
+
+    public static Result error(String msg) {
+        Result result = new Result();
+        result.setCode("500");
+        result.setMsg(msg);
+        return result;
+    }
+
+    public String getCode() {
+        return code;
+    }
+
+    public void setCode(String code) {
+        this.code = code;
+    }
+
+    public String getMsg() {
+        return msg;
+    }
+
+    public void setMsg(String msg) {
+        this.msg = msg;
+    }
+
+    public Object getData() {
+        return data;
+    }
+
+    public void setData(Object data) {
+        this.data = data;
+    }
+}

src/main/java/com/example/common/config/CorsConfig.java

@@ -0,0 +1,25 @@
+package com.example.common.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.cors.CorsConfiguration;
+import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
+import org.springframework.web.filter.CorsFilter;
+
+/**
+ * 跨域配置
+ */
+@Configuration
+public class CorsConfig {
+
+    @Bean
+    public CorsFilter corsFilter() {
+        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
+        CorsConfiguration corsConfiguration = new CorsConfiguration();
+        corsConfiguration.addAllowedOrigin("*"); // 1 设置访问源地址
+        corsConfiguration.addAllowedHeader("*"); // 2 设置访问源请求头
+        corsConfiguration.addAllowedMethod("*"); // 3 设置访问源请求方法
+        source.registerCorsConfiguration("/**", corsConfiguration); // 4 对接口配置跨域设置
+        return new CorsFilter(source);
+    }
+}

src/main/java/com/example/common/config/JWTInterceptor.java

@@ -0,0 +1,74 @@
+package com.example.common.config;
+
+import cn.hutool.core.util.ObjectUtil;
+import com.auth0.jwt.JWT;
+import com.auth0.jwt.JWTVerifier;
+import com.auth0.jwt.algorithms.Algorithm;
+import com.auth0.jwt.exceptions.JWTVerificationException;
+import com.example.common.Constants;
+import com.example.common.enums.ResultCodeEnum;
+import com.example.common.enums.RoleEnum;
+import com.example.entity.Account;
+import com.example.exception.CustomException;
+import com.example.service.AdminService;
+import com.example.service.UserService;
+import jakarta.annotation.Resource;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import org.springframework.stereotype.Component;
+import org.springframework.web.servlet.HandlerInterceptor;
+
+/**
+ * JWT拦截器
+ */
+@Component
+public class JWTInterceptor implements HandlerInterceptor {
+
+    @Resource
+    private AdminService adminService;
+    @Resource
+    private UserService userService;
+
+    @Override
+    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
+        // 1. 从http请求标头里面拿到token
+        String token = request.getHeader(Constants.TOKEN);
+        if (ObjectUtil.isNull(token)) {
+            // 如果没拿到，那么再从请求参数里拿一次
+            request.getParameter(Constants.TOKEN);
+        }
+        // 2. 开始执行认证
+        if (ObjectUtil.isNull(token)) {
+            throw new CustomException(ResultCodeEnum.TOKEN_INVALID_ERROR);
+        }
+        Account account = null;
+        try {
+            String audience = JWT.decode(token).getAudience().get(0);
+            String userId = audience.split("-")[0];
+            String role = audience.split("-")[1];
+            // 根据用户角色判断用户属于哪个数据库表 然后查询用户数据
+            if (RoleEnum.ADMIN.name().equals(role)) {
+                account = adminService.selectById(Integer.valueOf(userId));
+            } else if (RoleEnum.USER.name().equals(role)) {
+                account = userService.selectById(Integer.valueOf(userId));
+            }
+        } catch (Exception e) {
+            throw new CustomException(ResultCodeEnum.TOKEN_CHECK_ERROR);
+        }
+        // 根据token里面携带的用户ID去对应的角色表查询  没查到 所有报了这个“用户不存在”错误
+        if (ObjectUtil.isNull(account)) {
+            // 用户不存在
+            throw new CustomException(ResultCodeEnum.TOKEN_CHECK_ERROR);
+        }
+        try {
+            // 通过用户的密码作为密钥再次验证token的合法性
+            JWTVerifier jwtVerifier = JWT.require(Algorithm.HMAC256(account.getPassword())).build();
+            jwtVerifier.verify(token);  // 验证token
+        } catch (JWTVerificationException e) {
+            // 用户不存在
+            throw new CustomException(ResultCodeEnum.TOKEN_CHECK_ERROR);
+        }
+        return true;
+    }
+
+}

src/main/java/com/example/common/config/WebConfig.java

@@ -0,0 +1,29 @@
+package com.example.common.config;
+
+import jakarta.annotation.Resource;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+public class WebConfig implements WebMvcConfigurer {
+
+    @Resource
+    private JWTInterceptor jwtInterceptor;
+
+    @Override
+    public void addInterceptors(InterceptorRegistry registry) {
+        registry.addInterceptor(jwtInterceptor).addPathPatterns("/**")
+                .excludePathPatterns("/")
+                .excludePathPatterns("/login", "/register", "/files/**")
+
+                 // 游客访问
+                .excludePathPatterns("/category/**")
+                .excludePathPatterns("/notice/**")
+                .excludePathPatterns("/book/**")
+                .excludePathPatterns("/posts/**")
+                .excludePathPatterns("/activity/**")
+        ;
+    }
+
+}

src/main/java/com/example/common/enums/ResultCodeEnum.java

@@ -0,0 +1,26 @@
+package com.example.common.enums;
+
+public enum ResultCodeEnum {
+
+    SUCCESS("200", "成功"),
+    PARAM_ERROR("400", "参数异常"),
+    TOKEN_INVALID_ERROR("401", "无效的token"),
+    TOKEN_CHECK_ERROR("401", "token验证失败，请重新登录"),
+    PARAM_LOST_ERROR("4001", "参数缺失"),
+
+    SYSTEM_ERROR("500", "系统异常"),
+    USER_EXIST_ERROR("5001", "用户名已存在"),
+    USER_NOT_LOGIN("5002", "用户未登录"),
+    USER_ACCOUNT_ERROR("5003", "账号或密码错误"),
+    USER_NOT_EXIST_ERROR("5004", "用户不存在"),
+    PARAM_PASSWORD_ERROR("5005", "原密码输入错误"),
+    ;
+
+    public String code;
+    public String msg;
+
+    ResultCodeEnum(String code, String msg) {
+        this.code = code;
+        this.msg = msg;
+    }
+}

src/main/java/com/example/common/enums/RoleEnum.java

@@ -0,0 +1,8 @@
+package com.example.common.enums;
+
+public enum RoleEnum {
+    // 管理员
+    ADMIN,
+    // 普通用户
+    USER
+}

src/main/java/com/example/controller/ActivityController.java

@@ -0,0 +1,87 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.Activity;
+import com.example.service.ActivityService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/activity")
+public class ActivityController {
+
+    @Resource
+    private ActivityService activityService;
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody Activity activity) {
+        activityService.add(activity);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody Activity activity) {
+        activityService.updateById(activity);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        activityService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        activityService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        Activity activity = activityService.selectById(id);
+        return Result.success(activity);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(Activity activity) {
+        List<Activity> list = activityService.selectAll(activity);
+        return Result.success(list);
+    }
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(Activity activity,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<Activity> pageInfo = activityService.selectPage(activity, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/AdminController.java

@@ -0,0 +1,87 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.Admin;
+import com.example.service.AdminService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/admin")
+public class AdminController {
+
+    @Resource
+    private AdminService adminService;
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody Admin admin) {
+        adminService.add(admin);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody Admin admin) {
+        adminService.updateById(admin);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        adminService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        adminService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        Admin admin = adminService.selectById(id);
+        return Result.success(admin);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(Admin admin) {
+        List<Admin> list = adminService.selectAll(admin);
+        return Result.success(list);
+    }
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(Admin admin,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<Admin> pageInfo = adminService.selectPage(admin, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/BookController.java

@@ -0,0 +1,107 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.Book;
+import com.example.service.BookService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/book")
+public class BookController {
+
+    @Resource
+    private BookService bookService;
+
+    /**
+     * 推荐
+     */
+    @GetMapping("/rem")
+    public Result rem() {
+        List<Book> rem = bookService.rem();
+        return Result.success(rem);
+    }
+
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody Book book) {
+        bookService.add(book);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody Book book) {
+        bookService.updateById(book);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        bookService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        bookService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        Book book = bookService.selectById(id);
+        return Result.success(book);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(Book book) {
+        List<Book> list = bookService.selectAll(book);
+        return Result.success(list);
+    }
+
+    /**
+     * 查询排行前五的热门借阅的图书
+     */
+    @GetMapping("/selectHot")
+    public Result selectHot() {
+        List<Book> list = bookService.selectHot();
+        return Result.success(list);
+    }
+
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(Book book,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<Book> pageInfo = bookService.selectPage(book, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/CartController.java

@@ -0,0 +1,87 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.Cart;
+import com.example.service.CartService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/cart")
+public class CartController {
+
+    @Resource
+    private CartService cartService;
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody Cart cart) {
+        cartService.add(cart);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody Cart cart) {
+        cartService.updateById(cart);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        cartService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        cartService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        Cart cart = cartService.selectById(id);
+        return Result.success(cart);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(Cart cart) {
+        List<Cart> list = cartService.selectAll(cart);
+        return Result.success(list);
+    }
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(Cart cart,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<Cart> pageInfo = cartService.selectPage(cart, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/CategoryController.java

@@ -0,0 +1,87 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.Category;
+import com.example.service.CategoryService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/category")
+public class CategoryController {
+
+    @Resource
+    private CategoryService categoryService;
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody Category category) {
+        categoryService.add(category);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody Category category) {
+        categoryService.updateById(category);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        categoryService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        categoryService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        Category category = categoryService.selectById(id);
+        return Result.success(category);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(Category category) {
+        List<Category> list = categoryService.selectAll(category);
+        return Result.success(list);
+    }
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(Category category,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<Category> pageInfo = categoryService.selectPage(category, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/CollectController.java

@@ -0,0 +1,87 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.Collect;
+import com.example.service.CollectService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/collect")
+public class CollectController {
+
+    @Resource
+    private CollectService collectService;
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody Collect collect) {
+        collectService.add(collect);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody Collect collect) {
+        collectService.updateById(collect);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        collectService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        collectService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        Collect collect = collectService.selectById(id);
+        return Result.success(collect);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(Collect collect) {
+        List<Collect> list = collectService.selectAll(collect);
+        return Result.success(list);
+    }
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(Collect collect,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<Collect> pageInfo = collectService.selectPage(collect, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/CommentController.java

@@ -0,0 +1,114 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.Comment;
+import com.example.service.CommentService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/comment")
+public class CommentController {
+
+    @Resource
+    private CommentService commentService;
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody Comment comment) {
+
+        commentService.add(comment);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody Comment comment) {
+        commentService.updateById(comment);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        commentService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 递归删除
+     */
+    @DeleteMapping("/deepDelete/{pid}")
+    public Result deepDelete(@PathVariable Integer pid) {
+        commentService.deepDelete(pid);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        commentService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        Comment comment = commentService.selectById(id);
+        return Result.success(comment);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(Comment comment) {
+        List<Comment> list = commentService.selectAll(comment);
+        return Result.success(list);
+    }
+
+    /**
+     * 查询树形结构的数据
+     */
+    @GetMapping("/selectTree/{module}/{fid}")
+    public Result selectTree(@PathVariable String module, @PathVariable Integer fid,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "5") Integer pageSize) {
+        PageInfo<Comment> pageInfo = commentService.selectTree(module, fid, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+    @GetMapping("/selectCount/{module}/{fid}")
+    public Result selectCount(@PathVariable String module, @PathVariable Integer fid) {
+        Integer count = commentService.selectCount(module, fid);
+        return Result.success(count);
+    }
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(Comment comment,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<Comment> pageInfo = commentService.selectPage(comment, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/FileController.java

@@ -0,0 +1,96 @@
+package com.example.controller;
+
+import cn.hutool.core.collection.CollUtil;
+import cn.hutool.core.io.FileUtil;
+import cn.hutool.core.lang.Dict;
+import cn.hutool.core.util.StrUtil;
+import com.example.common.Result;
+import jakarta.servlet.http.HttpServletResponse;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.io.OutputStream;
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+import java.util.HashMap;
+import java.util.Map;
+
+@RestController
+@RequestMapping("/files")
+public class FileController {
+
+    private static final Logger log = LoggerFactory.getLogger(FileController.class);
+
+    private static final String filePath = "D:/2025/hadoop-library-recommendation/files/";
+//    private static final String filePath = System.getProperty("user.dir") + "/files/";
+    
+    @Value("${fileBaseUrl:}")
+    private String fileBaseUrl;
+
+    /**
+     * 文件上传
+     */
+    @PostMapping("/upload")
+    public Result upload(MultipartFile file) {
+        String fileName = file.getOriginalFilename();
+        try {
+            if (!FileUtil.isDirectory(filePath)) {
+                FileUtil.mkdir(filePath);
+            }
+            fileName = System.currentTimeMillis() + "-" + fileName;
+            String realFilePath = filePath + fileName;
+            // 文件存储形式：时间戳-文件名
+            FileUtil.writeBytes(file.getBytes(), realFilePath);
+        } catch (Exception e) {
+            log.error(fileName + "--文件上传失败", e);
+        }
+        String url = fileBaseUrl + "/files/download/" + fileName;
+        return Result.success(url);
+    }
+
+    /**
+     * 获取文件
+     */    @GetMapping("/download/{fileName}")
+    public void download(@PathVariable String fileName, HttpServletResponse response) {
+        OutputStream os;
+        try {
+            if (StrUtil.isNotEmpty(fileName)) {
+                response.addHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, StandardCharsets.UTF_8));
+                response.setContentType("application/octet-stream");
+                byte[] bytes = FileUtil.readBytes(filePath + fileName);
+                os = response.getOutputStream();
+                os.write(bytes);
+                os.flush();
+                os.close();
+            }
+        } catch (Exception e) {
+            log.warn("文件下载失败：" + fileName);
+        }
+    }
+
+    /**
+     * wang-editor编辑器文件上传接口
+     */
+    @PostMapping("/wang/upload")
+    public Map<String, Object> wangEditorUpload(MultipartFile file) {
+        String flag = System.currentTimeMillis() + "";
+        String fileName = file.getOriginalFilename();
+        try {
+            // 文件存储形式：时间戳-文件名
+            FileUtil.writeBytes(file.getBytes(), filePath + flag + "-" + fileName);
+            System.out.println(fileName + "--上传成功");
+            Thread.sleep(1L);
+        } catch (Exception e) {
+            System.err.println(fileName + "--文件上传失败");
+        }
+        String http = fileBaseUrl + "/files/download/";
+        Map<String, Object> resMap = new HashMap<>();
+        // wangEditor上传图片成功后， 需要返回的参数
+        resMap.put("errno", 0);
+        resMap.put("data", CollUtil.newArrayList(Dict.create().set("url", http + flag + "-" + fileName)));
+        return resMap;
+    }
+}

src/main/java/com/example/controller/NoticeController.java

@@ -0,0 +1,87 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.Notice;
+import com.example.service.NoticeService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/notice")
+public class NoticeController {
+
+    @Resource
+    private NoticeService noticeService;
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody Notice notice) {
+        noticeService.add(notice);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody Notice notice) {
+        noticeService.updateById(notice);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        noticeService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        noticeService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        Notice notice = noticeService.selectById(id);
+        return Result.success(notice);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(Notice notice) {
+        List<Notice> list = noticeService.selectAll(notice);
+        return Result.success(list);
+    }
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(Notice notice,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<Notice> pageInfo = noticeService.selectPage(notice, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/OrdersController.java

@@ -0,0 +1,104 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.Orders;
+import com.example.mapper.OrdersMapper;
+import com.example.service.OrdersService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/orders")
+public class OrdersController {
+
+    @Resource
+    private OrdersService ordersService;
+
+    @Resource
+    private OrdersMapper ordersMapper;
+
+
+    /**
+     * 新增
+     */
+    @GetMapping("/ods_order_count")
+    public Result view1() {
+        return Result.success(ordersMapper.ods_order_count());
+    }    @GetMapping("/ods_yuyue_count")
+    public Result view2() {
+        return Result.success(ordersMapper.ods_yuyue_count());
+    }
+
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody Orders orders) {
+        ordersService.add(orders);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody Orders orders) {
+        ordersService.updateById(orders);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        ordersService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        ordersService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        Orders orders = ordersService.selectById(id);
+        return Result.success(orders);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(Orders orders) {
+        List<Orders> list = ordersService.selectAll(orders);
+        return Result.success(list);
+    }
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(Orders orders,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<Orders> pageInfo = ordersService.selectPage(orders, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/OrdersItemController.java

@@ -0,0 +1,96 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.OrdersItem;
+import com.example.service.OrdersItemService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/ordersItem")
+public class OrdersItemController {
+
+    @Resource
+    private OrdersItemService ordersItemService;
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody OrdersItem ordersItem) {
+        ordersItemService.add(ordersItem);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody OrdersItem ordersItem) {
+        ordersItemService.updateById(ordersItem);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        ordersItemService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        ordersItemService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        OrdersItem ordersItem = ordersItemService.selectById(id);
+        return Result.success(ordersItem);
+    }
+
+    /**
+     * 根据订单ID查询
+     */
+    @GetMapping("/selectByOrderId/{orderId}")
+    public Result selectByOrderId(@PathVariable Integer orderId) {
+        List<OrdersItem> ordersItem = ordersItemService.selectByOrderId(orderId);
+        return Result.success(ordersItem);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(OrdersItem ordersItem) {
+        List<OrdersItem> list = ordersItemService.selectAll(ordersItem);
+        return Result.success(list);
+    }
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(OrdersItem ordersItem,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<OrdersItem> pageInfo = ordersItemService.selectPage(ordersItem, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/PostsController.java

@@ -0,0 +1,110 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.Posts;
+import com.example.service.CommentService;
+import com.example.service.PostsService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/posts")
+public class PostsController {
+
+    @Resource
+    private PostsService postsService;
+
+    @Resource
+    private CommentService commentService;
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody Posts posts) {
+        postsService.add(posts);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody Posts posts) {
+        postsService.updateById(posts);
+        return Result.success();
+    }
+
+    @PutMapping("/updateReadCount/{id}")
+    public Result updateReadCount(@PathVariable Integer id) {
+        postsService.updateReadCount(id);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        postsService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        postsService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        Posts posts = postsService.selectById(id);
+        return Result.success(posts);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(Posts posts) {
+        List<Posts> list = postsService.selectAll(posts);
+        return Result.success(list);
+    }
+
+    @GetMapping("/selectHot")
+    public Result selectHot(Posts posts) {
+        List<Posts> list = postsService.selectAll(posts);
+        // 排序+ 限制个数
+        list = list.stream().sorted((p1, p2) -> p2.getReadCount().compareTo(p1.getReadCount())).limit(5).collect(Collectors.toList());
+        for (Posts p : list) {
+            Integer count = commentService.selectCount("posts", p.getId());// 查询当前这个帖子下面所有的评论数
+            p.setCommentCount(count);
+        }
+        return Result.success(list);
+    }
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(Posts posts,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<Posts> pageInfo = postsService.selectPage(posts, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/PostsSectionController.java

@@ -0,0 +1,87 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.PostsSection;
+import com.example.service.PostsSectionService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/postsSection")
+public class PostsSectionController {
+
+    @Resource
+    private PostsSectionService postsSectionService;
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody PostsSection postsSection) {
+        postsSectionService.add(postsSection);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody PostsSection postsSection) {
+        postsSectionService.updateById(postsSection);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        postsSectionService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        postsSectionService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        PostsSection postsSection = postsSectionService.selectById(id);
+        return Result.success(postsSection);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(PostsSection postsSection) {
+        List<PostsSection> list = postsSectionService.selectAll(postsSection);
+        return Result.success(list);
+    }
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(PostsSection postsSection,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<PostsSection> pageInfo = postsSectionService.selectPage(postsSection, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/RoomController.java

@@ -0,0 +1,87 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.Room;
+import com.example.service.RoomService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/room")
+public class RoomController {
+
+    @Resource
+    private RoomService roomService;
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody Room room) {
+        roomService.add(room);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody Room room) {
+        roomService.updateById(room);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        roomService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        roomService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        Room room = roomService.selectById(id);
+        return Result.success(room);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(Room room) {
+        List<Room> list = roomService.selectAll(room);
+        return Result.success(list);
+    }
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(Room room,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<Room> pageInfo = roomService.selectPage(room, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/SeatController.java

@@ -0,0 +1,87 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.Seat;
+import com.example.service.SeatService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/seat")
+public class SeatController {
+
+    @Resource
+    private SeatService seatService;
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody Seat seat) {
+        seatService.add(seat);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody Seat seat) {
+        seatService.updateById(seat);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        seatService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        seatService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        Seat seat = seatService.selectById(id);
+        return Result.success(seat);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(Seat seat) {
+        List<Seat> list = seatService.selectAll(seat);
+        return Result.success(list);
+    }
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(Seat seat,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<Seat> pageInfo = seatService.selectPage(seat, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/SeatReserveController.java

@@ -0,0 +1,87 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.SeatReserve;
+import com.example.service.SeatReserveService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/seatReserve")
+public class SeatReserveController {
+
+    @Resource
+    private SeatReserveService seatReserveService;
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody SeatReserve seatReserve) {
+        seatReserveService.add(seatReserve);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody SeatReserve seatReserve) {
+        seatReserveService.updateById(seatReserve);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        seatReserveService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        seatReserveService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        SeatReserve seatReserve = seatReserveService.selectById(id);
+        return Result.success(seatReserve);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(SeatReserve seatReserve) {
+        List<SeatReserve> list = seatReserveService.selectAll(seatReserve);
+        return Result.success(list);
+    }
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(SeatReserve seatReserve,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<SeatReserve> pageInfo = seatReserveService.selectPage(seatReserve, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/SignController.java

@@ -0,0 +1,87 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.Sign;
+import com.example.service.SignService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/sign")
+public class SignController {
+
+    @Resource
+    private SignService signService;
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody Sign sign) {
+        signService.add(sign);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody Sign sign) {
+        signService.updateById(sign);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        signService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        signService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        Sign sign = signService.selectById(id);
+        return Result.success(sign);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(Sign sign) {
+        List<Sign> list = signService.selectAll(sign);
+        return Result.success(list);
+    }
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(Sign sign,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<Sign> pageInfo = signService.selectPage(sign, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/UserController.java

@@ -0,0 +1,87 @@
+package com.example.controller;
+
+import com.example.common.Result;
+import com.example.entity.User;
+import com.example.service.UserService;
+import com.github.pagehelper.PageInfo;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+/**
+ * 前端请求接口
+ */
+@RestController
+@RequestMapping("/user")
+public class UserController {
+
+    @Resource
+    private UserService userService;
+
+    /**
+     * 新增
+     */
+    @PostMapping("/add")
+    public Result add(@RequestBody User user) {
+        userService.add(user);
+        return Result.success();
+    }
+
+    /**
+     * 修改
+     */
+    @PutMapping("/update")
+    public Result update(@RequestBody User user) {
+        userService.updateById(user);
+        return Result.success();
+    }
+
+    /**
+     * 单个删除
+     */
+    @DeleteMapping("/delete/{id}")
+    public Result delete(@PathVariable Integer id) {
+        userService.deleteById(id);
+        return Result.success();
+    }
+
+    /**
+     * 批量删除
+     */
+    @DeleteMapping("/delete/batch")
+    public Result delete(@RequestBody List<Integer> ids) {
+        userService.deleteBatch(ids);
+        return Result.success();
+    }
+
+    /**
+     * 单个查询
+     */
+    @GetMapping("/selectById/{id}")
+    public Result selectById(@PathVariable Integer id) {
+        User user = userService.selectById(id);
+        return Result.success(user);
+    }
+
+    /**
+     * 查询所有
+     */
+    @GetMapping("/selectAll")
+    public Result selectAll(User user) {
+        List<User> list = userService.selectAll(user);
+        return Result.success(list);
+    }
+
+    /**
+     * 分页查询
+     */
+    @GetMapping("/selectPage")
+    public Result selectPage(User user,
+                             @RequestParam(defaultValue = "1") Integer pageNum,
+                             @RequestParam(defaultValue = "10") Integer pageSize) {
+        PageInfo<User> pageInfo = userService.selectPage(user, pageNum, pageSize);
+        return Result.success(pageInfo);
+    }
+
+}

src/main/java/com/example/controller/WebController.java

@@ -0,0 +1,144 @@
+package com.example.controller;
+
+import cn.hutool.core.date.DateField;
+import cn.hutool.core.date.DateTime;
+import cn.hutool.core.date.DateUnit;
+import cn.hutool.core.date.DateUtil;
+import cn.hutool.core.lang.Dict;
+import com.example.common.Result;
+import com.example.common.enums.RoleEnum;
+import com.example.entity.*;
+import com.example.mapper.PostsMapper;
+import com.example.mapper.SignMapper;
+import com.example.service.*;
+import jakarta.annotation.Resource;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.*;
+import java.util.stream.Collectors;
+
+@RestController
+public class WebController {
+
+    @Resource
+    private AdminService adminService;
+    @Resource
+    private UserService userService;
+    @Resource
+    OrdersService ordersService;
+    @Resource
+    SeatReserveService seatReserveService;
+    @Resource
+    ActivityService activityService;
+    @Resource
+    SignMapper signMapper;
+    @Resource
+    PostsSectionService postsSectionService;
+    @Resource
+    PostsMapper postsMapper;
+
+    /**
+     * 默认请求接口
+     */
+    @GetMapping("/")
+    public Result hello () {
+        return Result.success();
+    }
+
+    /**
+     * 登录
+     */
+    @PostMapping("/login")
+    public Result login(@RequestBody Account account) {
+        Account loginAccount = null;
+        if (RoleEnum.ADMIN.name().equals(account.getRole())) {
+            loginAccount = adminService.login(account);
+        } else if (RoleEnum.USER.name().equals(account.getRole())) {
+            loginAccount = userService.login(account);
+        }
+        return Result.success(loginAccount);
+    }
+
+    /**
+     * 注册
+     */
+    @PostMapping("/register")
+    public Result register(@RequestBody User user) {
+        userService.add(user);
+        return Result.success();
+    }
+
+    /**
+     * 修改密码
+     */
+    @PutMapping("/updatePassword")
+    public Result updatePassword(@RequestBody Account account) {
+        if (RoleEnum.ADMIN.name().equals(account.getRole())) {
+            adminService.updatePassword(account);
+        } else if (RoleEnum.USER.name().equals(account.getRole())) {
+            userService.updatePassword(account);
+        }
+        return Result.success();
+    }
+
+
+    ///lineData
+    @GetMapping("/lineData")
+    public Result lineDate() {
+        List<Dict> list = new ArrayList<>();
+        Date date = new Date();
+        DateTime start = DateUtil.offsetDay(date, -30);  // 开日期
+        List<DateTime> dateList = DateUtil.rangeToList(start, date, DateField.DAY_OF_YEAR);
+        List<String> dateStrList =
+                dateList.stream().map(DateUtil::formatDate).
+                        sorted(Comparator.naturalOrder()).collect(Collectors.toList());
+        for (String day : dateStrList) {
+            // 查询这一天的借书量
+            Integer count = ordersService.selectDayCount(day);
+            Dict dict = Dict.create().set("date", day).set("count", count);
+            list.add(dict);
+        }
+        return Result.success(list);
+    }
+
+    @GetMapping("/lineData1")
+    public Result lineDate1() {
+        List<Dict> list = new ArrayList<>();
+        Date date = new Date();
+        DateTime start = DateUtil.offsetDay(date, -30);  // 开日期
+        List<DateTime> dateList = DateUtil.rangeToList(start, date, DateField.DAY_OF_YEAR);
+        List<String> dateStrList = dateList.stream().map(DateUtil::formatDate).sorted(Comparator.naturalOrder()).collect(Collectors.toList());
+        for (String day : dateStrList) {
+            // 查询这一天的借书量
+            Integer count = seatReserveService.selectDayCount(day);
+            Dict dict = Dict.create().set("date", day).set("count", count);
+            list.add(dict);
+        }
+        return Result.success(list);
+    }
+
+    @GetMapping("/barData")
+    public Result barData() {
+        List<Dict> list = new ArrayList<>();
+        List<Activity> activityList = activityService.selectAll(null);
+        for (Activity activity : activityList) {
+            Integer count = signMapper.selectByActivityId(activity.getId());
+            Dict dict = Dict.create().set("name", activity.getName()).set("count", count);
+            list.add(dict);
+        }
+        return Result.success(list);
+    }
+
+    @GetMapping("/pieData")
+    public Result pieData() {
+        List<Dict> list = new ArrayList<>();
+        List<PostsSection> postsSectionList = postsSectionService.selectAll(null);
+        for (PostsSection section : postsSectionList) {
+            Integer count = postsMapper.selectBySectionId(section.getId());
+            Dict dict = Dict.create().set("name", section.getName()).set("value", count);  // 注意  pie数据格式必须是name:value 对象
+            list.add(dict);
+        }
+        return Result.success(list);
+    }
+
+}

src/main/java/com/example/entity/Account.java

@@ -0,0 +1,68 @@
+package com.example.entity;
+
+public class Account {
+
+    private Integer id;
+    private String username;
+    private String password;
+    private String role;
+    private String newPassword;
+    private String token;
+    private Integer score;
+
+    public Integer getScore() {
+        return score;
+    }
+
+    public void setScore(Integer score) {
+        this.score = score;
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public String getRole() {
+        return role;
+    }
+
+    public void setRole(String role) {
+        this.role = role;
+    }
+
+    public String getNewPassword() {
+        return newPassword;
+    }
+
+    public void setNewPassword(String newPassword) {
+        this.newPassword = newPassword;
+    }
+
+    public String getToken() {
+        return token;
+    }
+
+    public void setToken(String token) {
+        this.token = token;
+    }
+}

src/main/java/com/example/entity/Activity.java

@@ -0,0 +1,113 @@
+package com.example.entity;
+
+public class Activity {
+    /** ID */
+    private Integer id;
+    /** 活动名称 */
+    private String name;
+    /** 活动描述 */
+    private String descr;
+    /** 活动图片 */
+    private String img;
+    /** 开始日期 */
+    private String start;
+    /** 结束日期 */
+    private String end;
+    /** 活动地点 */
+    private String location;
+    /** 报名人数 */
+    private Integer num;
+    /** 活动详情 */
+    private String content;
+    /** 活动状态 */
+    private String status;
+    private Integer signCount;
+
+    public Integer getSignCount() {
+        return signCount;
+    }
+
+    public void setSignCount(Integer signCount) {
+        this.signCount = signCount;
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getDescr() {
+        return descr;
+    }
+
+    public void setDescr(String descr) {
+        this.descr = descr;
+    }
+
+    public String getImg() {
+        return img;
+    }
+
+    public void setImg(String img) {
+        this.img = img;
+    }
+
+    public String getStart() {
+        return start;
+    }
+
+    public void setStart(String start) {
+        this.start = start;
+    }
+
+    public String getEnd() {
+        return end;
+    }
+
+    public void setEnd(String end) {
+        this.end = end;
+    }
+
+    public String getLocation() {
+        return location;
+    }
+
+    public void setLocation(String location) {
+        this.location = location;
+    }
+
+    public Integer getNum() {
+        return num;
+    }
+
+    public void setNum(Integer num) {
+        this.num = num;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public String getStatus() {
+        return status;
+    }
+
+    public void setStatus(String status) {
+        this.status = status;
+    }
+}

src/main/java/com/example/entity/Admin.java

@@ -0,0 +1,79 @@
+package com.example.entity;
+
+public class Admin extends Account {
+
+    /** 主键ID */
+    private Integer id;
+    /** 账号 */
+    private String username;
+    private String password;
+    private String name;
+    private String avatar;
+    private String role;
+    private String phone;
+    private String email;
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getAvatar() {
+        return avatar;
+    }
+
+    public void setAvatar(String avatar) {
+        this.avatar = avatar;
+    }
+
+    public String getRole() {
+        return role;
+    }
+
+    public void setRole(String role) {
+        this.role = role;
+    }
+
+    public String getPhone() {
+        return phone;
+    }
+
+    public void setPhone(String phone) {
+        this.phone = phone;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+}

src/main/java/com/example/entity/Book.java

@@ -0,0 +1,148 @@
+package com.example.entity;
+
+import lombok.Data;
+
+@Data
+public class Book {
+    /** ID */
+    private Integer id;
+    /** 名称 */
+    private String name;
+    private String score;
+    /** 封面 */
+    private String cover;
+    /** 简介 */
+    private String descr;
+    /** 作者 */
+    private String author;
+    /** 出版社 */
+    private String publisher;
+    /** 出版日期 */
+    private String date;
+    /** 价格 */
+    private String price;
+    /** ISBN */
+    private String isbn;
+    /** 库存 */
+    private Integer store;
+    /** 分类ID */
+    private Integer categoryId;
+    /** 是否上架 */
+    private Boolean grounding;
+    /** 是否推荐 */
+    private Boolean recommend;
+    //  分类的名称
+    private String categoryName;
+
+    public String getCategoryName() {
+        return categoryName;
+    }
+
+    public void setCategoryName(String categoryName) {
+        this.categoryName = categoryName;
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getCover() {
+        return cover;
+    }
+
+    public void setCover(String cover) {
+        this.cover = cover;
+    }
+
+    public String getDescr() {
+        return descr;
+    }
+
+    public void setDescr(String descr) {
+        this.descr = descr;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+
+    public String getPublisher() {
+        return publisher;
+    }
+
+    public void setPublisher(String publisher) {
+        this.publisher = publisher;
+    }
+
+    public String getDate() {
+        return date;
+    }
+
+    public void setDate(String date) {
+        this.date = date;
+    }
+
+    public String getPrice() {
+        return price;
+    }
+
+    public void setPrice(String price) {
+        this.price = price;
+    }
+
+    public String getIsbn() {
+        return isbn;
+    }
+
+    public void setIsbn(String isbn) {
+        this.isbn = isbn;
+    }
+
+    public Integer getStore() {
+        return store;
+    }
+
+    public void setStore(Integer store) {
+        this.store = store;
+    }
+
+    public Integer getCategoryId() {
+        return categoryId;
+    }
+
+    public void setCategoryId(Integer categoryId) {
+        this.categoryId = categoryId;
+    }
+
+    public Boolean getGrounding() {
+        return grounding;
+    }
+
+    public void setGrounding(Boolean grounding) {
+        this.grounding = grounding;
+    }
+
+    public Boolean getRecommend() {
+        return recommend;
+    }
+
+    public void setRecommend(Boolean recommend) {
+        this.recommend = recommend;
+    }
+}

src/main/java/com/example/entity/Cart.java

@@ -0,0 +1,75 @@
+package com.example.entity;
+
+/**
+ * 书单信息
+ */
+public class Cart {
+    /** ID */
+    private Integer id;
+    /** 图书ID */
+    private Integer bookId;
+    /** 数量 */
+    private Integer num;
+    /** 用户ID */
+    private Integer userId;
+    /** 添加日期 */
+    private String time;
+    private String bookCover;
+    private String bookName;
+
+    public String getBookCover() {
+        return bookCover;
+    }
+
+    public void setBookCover(String bookCover) {
+        this.bookCover = bookCover;
+    }
+
+    public String getBookName() {
+        return bookName;
+    }
+
+    public void setBookName(String bookName) {
+        this.bookName = bookName;
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public Integer getBookId() {
+        return bookId;
+    }
+
+    public void setBookId(Integer bookId) {
+        this.bookId = bookId;
+    }
+
+    public Integer getNum() {
+        return num;
+    }
+
+    public void setNum(Integer num) {
+        this.num = num;
+    }
+
+    public Integer getUserId() {
+        return userId;
+    }
+
+    public void setUserId(Integer userId) {
+        this.userId = userId;
+    }
+
+    public String getTime() {
+        return time;
+    }
+
+    public void setTime(String time) {
+        this.time = time;
+    }
+}

src/main/java/com/example/entity/Category.java

@@ -0,0 +1,22 @@
+package com.example.entity;
+
+public class Category {
+    private Integer id;
+    private String name;
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

src/main/java/com/example/entity/Collect.java

@@ -0,0 +1,65 @@
+package com.example.entity;
+
+/**
+ * 活动收藏信息
+ */
+public class Collect {
+    /** ID */
+    private Integer id;
+    /** 活动ID */
+    private Integer activityId;
+    /** 收藏人ID */
+    private Integer userId;
+    /** 收藏时间 */
+    private String time;
+    private String activityName;
+    private String userName;
+
+    public String getActivityName() {
+        return activityName;
+    }
+
+    public void setActivityName(String activityName) {
+        this.activityName = activityName;
+    }
+
+    public String getUserName() {
+        return userName;
+    }
+
+    public void setUserName(String userName) {
+        this.userName = userName;
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public Integer getActivityId() {
+        return activityId;
+    }
+
+    public void setActivityId(Integer activityId) {
+        this.activityId = activityId;
+    }
+
+    public Integer getUserId() {
+        return userId;
+    }
+
+    public void setUserId(Integer userId) {
+        this.userId = userId;
+    }
+
+    public String getTime() {
+        return time;
+    }
+
+    public void setTime(String time) {
+        this.time = time;
+    }
+}

src/main/java/com/example/entity/Comment.java

@@ -0,0 +1,129 @@
+package com.example.entity;
+
+import lombok.Data;
+
+import java.util.List;
+
+/**
+ * 评论信息
+ */
+@Data
+public class Comment {
+    /** ID */
+    private Integer id;
+    /** 内容 */
+    private String content;
+    /** 评论人 */
+    private Integer userId;
+    /** 父级ID */
+    private Integer pid;
+    /** 评论时间 */
+    private String time;
+    /** 关联ID */
+    private Integer fid;
+    private Double score;
+    /** 模块 */
+    private String module;
+    /** 根节点ID */
+    private Integer rootId;
+    private String userName;
+    private String userAvatar;
+    private String parentUserName;
+    private List<Comment> children;
+
+    public String getParentUserName() {
+        return parentUserName;
+    }
+
+    public void setParentUserName(String parentUserName) {
+        this.parentUserName = parentUserName;
+    }
+
+    public List<Comment> getChildren() {
+        return children;
+    }
+
+    public void setChildren(List<Comment> children) {
+        this.children = children;
+    }
+
+    public String getUserAvatar() {
+        return userAvatar;
+    }
+
+    public void setUserAvatar(String userAvatar) {
+        this.userAvatar = userAvatar;
+    }
+
+    public String getUserName() {
+        return userName;
+    }
+
+    public void setUserName(String userName) {
+        this.userName = userName;
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public Integer getUserId() {
+        return userId;
+    }
+
+    public void setUserId(Integer userId) {
+        this.userId = userId;
+    }
+
+    public Integer getPid() {
+        return pid;
+    }
+
+    public void setPid(Integer pid) {
+        this.pid = pid;
+    }
+
+    public String getTime() {
+        return time;
+    }
+
+    public void setTime(String time) {
+        this.time = time;
+    }
+
+    public Integer getFid() {
+        return fid;
+    }
+
+    public void setFid(Integer fid) {
+        this.fid = fid;
+    }
+
+    public String getModule() {
+        return module;
+    }
+
+    public void setModule(String module) {
+        this.module = module;
+    }
+
+    public Integer getRootId() {
+        return rootId;
+    }
+
+    public void setRootId(Integer rootId) {
+        this.rootId = rootId;
+    }
+}

src/main/java/com/example/entity/Notice.java

@@ -0,0 +1,40 @@
+package com.example.entity;
+
+public class Notice {
+    private Integer id;
+    private String title;
+    private String content;
+    private String time;
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public String getTime() {
+        return time;
+    }
+
+    public void setTime(String time) {
+        this.time = time;
+    }
+}

src/main/java/com/example/entity/Orders.java

@@ -0,0 +1,123 @@
+package com.example.entity;
+
+import java.util.List;
+
+/**
+ * 订单信息
+ */
+public class Orders {
+    /** ID */
+    private Integer id;
+    /** 书籍名称 */
+    private String name;
+    /** 借书编号 */
+    private String orderNo;
+    /** 借书时间 */
+    private String time;
+    /** 用户ID */
+    private Integer userId;
+    /** 状态 */
+    private String status;
+    private String userName;
+    private String hex;
+    private Long days;
+    private Integer bookId;
+    private Integer num;
+    private List<Cart> cartList;
+
+    public void setHex(String hex) {
+        this.hex = hex;
+    }
+
+    public String getHex() {
+        return hex;
+    }
+
+    public List<Cart> getCartList() {
+        return cartList;
+    }
+
+    public void setCartList(List<Cart> cartList) {
+        this.cartList = cartList;
+    }
+
+    public Integer getNum() {
+        return num;
+    }
+
+    public void setNum(Integer num) {
+        this.num = num;
+    }
+
+    public Integer getBookId() {
+        return bookId;
+    }
+
+    public void setBookId(Integer bookId) {
+        this.bookId = bookId;
+    }
+
+    public Long getDays() {
+        return days;
+    }
+
+    public void setDays(Long days) {
+        this.days = days;
+    }
+
+    public String getUserName() {
+        return userName;
+    }
+
+    public void setUserName(String userName) {
+        this.userName = userName;
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getOrderNo() {
+        return orderNo;
+    }
+
+    public void setOrderNo(String orderNo) {
+        this.orderNo = orderNo;
+    }
+
+    public String getTime() {
+        return time;
+    }
+
+    public void setTime(String time) {
+        this.time = time;
+    }
+
+    public Integer getUserId() {
+        return userId;
+    }
+
+    public void setUserId(Integer userId) {
+        this.userId = userId;
+    }
+
+    public String getStatus() {
+        return status;
+    }
+
+    public void setStatus(String status) {
+        this.status = status;
+    }
+}

src/main/java/com/example/entity/OrdersItem.java

@@ -0,0 +1,67 @@
+package com.example.entity;
+
+/**
+ * 订单明细
+ */
+public class OrdersItem {
+    /** ID */
+    private Integer id;
+    /** 图书ID */
+    private Integer bookId;
+    /** 图书名称 */
+    private String bookName;
+    /** 图书封面 */
+    private String bookCover;
+    /** 数量 */
+    private Integer num;
+    /** 借书订单ID */
+    private Integer orderId;
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public Integer getBookId() {
+        return bookId;
+    }
+
+    public void setBookId(Integer bookId) {
+        this.bookId = bookId;
+    }
+
+    public String getBookName() {
+        return bookName;
+    }
+
+    public void setBookName(String bookName) {
+        this.bookName = bookName;
+    }
+
+    public String getBookCover() {
+        return bookCover;
+    }
+
+    public void setBookCover(String bookCover) {
+        this.bookCover = bookCover;
+    }
+
+    public Integer getNum() {
+        return num;
+    }
+
+    public void setNum(Integer num) {
+        this.num = num;
+    }
+
+    public Integer getOrderId() {
+        return orderId;
+    }
+
+    public void setOrderId(Integer orderId) {
+        this.orderId = orderId;
+    }
+}

src/main/java/com/example/entity/Posts.java

@@ -0,0 +1,133 @@
+package com.example.entity;
+
+/**
+ * 帖子
+ */
+public class Posts {
+    /** ID */
+    private Integer id;
+    /** 标题 */
+    private String title;
+    /** 图片 */
+    private String img;
+    /** 标签 */
+    private String tags;
+    /** 内容 */
+    private String content;
+    /** 发布人ID */
+    private Integer userId;
+    /** 发布时间 */
+    private String time;
+    /** 阅读量 */
+    private Integer readCount;
+    /** 版块ID */
+    private Integer sectionId;
+    private String userName;
+    private String sectionName;
+    private String simpleContent;
+    private Integer commentCount;
+
+    public Integer getCommentCount() {
+        return commentCount;
+    }
+
+    public void setCommentCount(Integer commentCount) {
+        this.commentCount = commentCount;
+    }
+
+    public String getSimpleContent() {
+        return simpleContent;
+    }
+
+    public void setSimpleContent(String simpleContent) {
+        this.simpleContent = simpleContent;
+    }
+
+    public String getUserName() {
+        return userName;
+    }
+
+    public void setUserName(String userName) {
+        this.userName = userName;
+    }
+
+    public String getSectionName() {
+        return sectionName;
+    }
+
+    public void setSectionName(String sectionName) {
+        this.sectionName = sectionName;
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getImg() {
+        return img;
+    }
+
+    public void setImg(String img) {
+        this.img = img;
+    }
+
+    public String getTags() {
+        return tags;
+    }
+
+    public void setTags(String tags) {
+        this.tags = tags;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public Integer getUserId() {
+        return userId;
+    }
+
+    public void setUserId(Integer userId) {
+        this.userId = userId;
+    }
+
+    public String getTime() {
+        return time;
+    }
+
+    public void setTime(String time) {
+        this.time = time;
+    }
+
+    public Integer getReadCount() {
+        return readCount;
+    }
+
+    public void setReadCount(Integer readCount) {
+        this.readCount = readCount;
+    }
+
+    public Integer getSectionId() {
+        return sectionId;
+    }
+
+    public void setSectionId(Integer sectionId) {
+        this.sectionId = sectionId;
+    }
+}

src/main/java/com/example/entity/PostsSection.java

@@ -0,0 +1,22 @@
+package com.example.entity;
+
+public class PostsSection {
+    private Integer id;
+    private String name;
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

src/main/java/com/example/entity/Rem.java

@@ -0,0 +1,11 @@
+package com.example.entity;
+
+import lombok.Data;
+
+@Data
+public class Rem {
+
+    private Integer id;
+    private String score;
+
+}

src/main/java/com/example/entity/Room.java

@@ -0,0 +1,54 @@
+package com.example.entity;
+
+public class Room {
+    /** ID */
+    private Integer id;
+    /** 名称 */
+    private String name;
+    /** 封面 */
+    private String img;
+    /** 位置 */
+    private String location;
+    /** 开放时间 */
+    private String openTime;
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getImg() {
+        return img;
+    }
+
+    public void setImg(String img) {
+        this.img = img;
+    }
+
+    public String getLocation() {
+        return location;
+    }
+
+    public void setLocation(String location) {
+        this.location = location;
+    }
+
+    public String getOpenTime() {
+        return openTime;
+    }
+
+    public void setOpenTime(String openTime) {
+        this.openTime = openTime;
+    }
+}

src/main/java/com/example/entity/Seat.java

@@ -0,0 +1,75 @@
+package com.example.entity;
+
+/**
+ * 座位信息
+ */
+public class Seat {
+    private Integer id;
+    /** 编号 */
+    private String no;
+    /** 阅览室ID */
+    private Integer roomId;
+    /** 排 */
+    private Integer row;
+    /** 列 */
+    private Integer col;
+    /** 预约状态 */
+    private String status;
+    private String roomName;
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getRoomName() {
+        return roomName;
+    }
+
+    public void setRoomName(String roomName) {
+        this.roomName = roomName;
+    }
+
+    public String getNo() {
+        return no;
+    }
+
+    public void setNo(String no) {
+        this.no = no;
+    }
+
+    public Integer getRoomId() {
+        return roomId;
+    }
+
+    public void setRoomId(Integer roomId) {
+        this.roomId = roomId;
+    }
+
+    public Integer getRow() {
+        return row;
+    }
+
+    public void setRow(Integer row) {
+        this.row = row;
+    }
+
+    public Integer getCol() {
+        return col;
+    }
+
+    public void setCol(Integer col) {
+        this.col = col;
+    }
+
+    public String getStatus() {
+        return status;
+    }
+
+    public void setStatus(String status) {
+        this.status = status;
+    }
+}

src/main/java/com/example/entity/SeatReserve.java

@@ -0,0 +1,76 @@
+package com.example.entity;
+
+public class SeatReserve {
+    private Integer id;
+    private Integer seatId;
+    private Integer userId;
+    private String time;
+    private String status;
+    private String roomName;
+    private String seatNo;
+    private String userName;
+
+    public String getRoomName() {
+        return roomName;
+    }
+
+    public void setRoomName(String roomName) {
+        this.roomName = roomName;
+    }
+
+    public String getSeatNo() {
+        return seatNo;
+    }
+
+    public void setSeatNo(String seatNo) {
+        this.seatNo = seatNo;
+    }
+
+    public String getUserName() {
+        return userName;
+    }
+
+    public void setUserName(String userName) {
+        this.userName = userName;
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public Integer getSeatId() {
+        return seatId;
+    }
+
+    public void setSeatId(Integer seatId) {
+        this.seatId = seatId;
+    }
+
+    public Integer getUserId() {
+        return userId;
+    }
+
+    public void setUserId(Integer userId) {
+        this.userId = userId;
+    }
+
+    public String getTime() {
+        return time;
+    }
+
+    public void setTime(String time) {
+        this.time = time;
+    }
+
+    public String getStatus() {
+        return status;
+    }
+
+    public void setStatus(String status) {
+        this.status = status;
+    }
+}

src/main/java/com/example/entity/Sign.java

@@ -0,0 +1,95 @@
+package com.example.entity;
+
+/**
+ * 活动报名
+ */
+public class Sign {
+    /** ID */
+    private Integer id;
+    /** 活动ID */
+    private Integer activityId;
+    /** 用户ID */
+    private Integer userId;
+    /** 报名时间 */
+    private String time;
+    /** 是否签到 */
+    private String sign;
+    /** 姓名 */
+    private String name;
+    /** 联系方式 */
+    private String phone;
+    private String userName;
+    private String activityName;
+
+    public String getUserName() {
+        return userName;
+    }
+
+    public void setUserName(String userName) {
+        this.userName = userName;
+    }
+
+    public String getActivityName() {
+        return activityName;
+    }
+
+    public void setActivityName(String activityName) {
+        this.activityName = activityName;
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public Integer getActivityId() {
+        return activityId;
+    }
+
+    public void setActivityId(Integer activityId) {
+        this.activityId = activityId;
+    }
+
+    public Integer getUserId() {
+        return userId;
+    }
+
+    public void setUserId(Integer userId) {
+        this.userId = userId;
+    }
+
+    public String getTime() {
+        return time;
+    }
+
+    public void setTime(String time) {
+        this.time = time;
+    }
+
+    public String getSign() {
+        return sign;
+    }
+
+    public void setSign(String sign) {
+        this.sign = sign;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getPhone() {
+        return phone;
+    }
+
+    public void setPhone(String phone) {
+        this.phone = phone;
+    }
+}

src/main/java/com/example/entity/User.java

@@ -0,0 +1,88 @@
+package com.example.entity;
+
+public class User extends Account {
+
+    /** 主键ID */
+    private Integer id;
+    /** 账号 */
+    private String username;
+    private String password;
+    private String name;
+    private String avatar;
+    private String role;
+    private String phone;
+    private String email;
+    private Integer score;
+
+    public Integer getScore() {
+        return score;
+    }
+
+    public void setScore(Integer score) {
+        this.score = score;
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getAvatar() {
+        return avatar;
+    }
+
+    public void setAvatar(String avatar) {
+        this.avatar = avatar;
+    }
+
+    public String getRole() {
+        return role;
+    }
+
+    public void setRole(String role) {
+        this.role = role;
+    }
+
+    public String getPhone() {
+        return phone;
+    }
+
+    public void setPhone(String phone) {
+        this.phone = phone;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+}

src/main/java/com/example/exception/BusinessException.java

@@ -0,0 +1,30 @@
+package com.example.exception;
+
+import cn.hutool.core.map.MapUtil;
+import cn.hutool.core.util.StrUtil;
+import cn.hutool.http.HttpResponse;
+import cn.hutool.http.HttpUtil;
+import cn.hutool.json.JSONUtil;
+import cn.hutool.core.util.IdUtil;
+import jakarta.annotation.PostConstruct;
+import jakarta.annotation.Resource;
+
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.stereotype.Component;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.util.Map;
+
+/**
+ * 业务异常
+ */
+@Component
+public class BusinessException extends RuntimeException {
+    @Resource
+    ApplicationContext context;
+
+
+
+}

src/main/java/com/example/exception/CustomException.java

@@ -0,0 +1,35 @@
+package com.example.exception;
+
+import com.example.common.enums.ResultCodeEnum;
+
+public class CustomException extends RuntimeException {
+
+    private String code;
+    private String msg;
+
+    public CustomException(String code, String msg) {
+        this.code = code;
+        this.msg = msg;
+    }
+
+    public CustomException(ResultCodeEnum resultCodeEnum) {
+        this.code = resultCodeEnum.code;
+        this.msg = resultCodeEnum.msg;
+    }
+
+    public String getCode() {
+        return code;
+    }
+
+    public void setCode(String code) {
+        this.code = code;
+    }
+
+    public String getMsg() {
+        return msg;
+    }
+
+    public void setMsg(String msg) {
+        this.msg = msg;
+    }
+}

src/main/java/com/example/exception/GlobalExceptionHandler.java

@@ -0,0 +1,28 @@
+package com.example.exception;
+
+import cn.hutool.log.Log;
+import cn.hutool.log.LogFactory;
+import com.example.common.Result;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseBody;
+
+@ControllerAdvice("com.example.controller")
+public class GlobalExceptionHandler {
+
+    private static final Log log = LogFactory.get();
+
+    @ExceptionHandler(Exception.class)
+    @ResponseBody // 返回json串
+    public Result error(Exception e) {
+        log.error("异常信息：", e);
+        return Result.error();
+    }
+
+    @ExceptionHandler(CustomException.class)
+    @ResponseBody // 返回json串
+    public Result error(CustomException e) {
+//        log.error("异常信息：", e);
+        return Result.error(e.getCode(), e.getMsg());
+    }
+}

src/main/java/com/example/mapper/ActivityMapper.java

@@ -0,0 +1,21 @@
+package com.example.mapper;
+
+import com.example.entity.Activity;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+public interface ActivityMapper {
+
+    int insert(Activity activity);
+
+    void updateById(Activity activity);
+
+    void deleteById(Integer id);
+
+    @Select("select * from `activity` where id = #{id}")
+    Activity selectById(Integer id);
+
+    List<Activity> selectAll(Activity activity);
+
+}

src/main/java/com/example/mapper/AdminMapper.java

@@ -0,0 +1,24 @@
+package com.example.mapper;
+
+import com.example.entity.Admin;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+public interface AdminMapper {
+
+    int insert(Admin admin);
+
+    void updateById(Admin admin);
+
+    void deleteById(Integer id);
+
+    @Select("select * from `admin` where id = #{id}")
+    Admin selectById(Integer id);
+
+    @Select("select * from `admin` where username = #{username}")
+    Admin selectByUsername(String username);
+
+    List<Admin> selectAll(Admin admin);
+
+}