调整

eladmin-web/src/components/Echarts/PieChart.vue

@@ -77,7 +77,7 @@ export default {
         calculable: true,
         series: [
           {
-            name: '设备指令统计',
+            name: '品牌统计',
             type: 'pie',
             roseType: 'radius',
             radius: [15, 95],

eladmin/eladmin-system/src/main/resources/mapper/system/DashboardMapper.xml

@@ -3,9 +3,7 @@
 <mapper namespace="me.zhengjie.modules.system.mapper.DashboardMapper">
 
     <select id="getPieChatData" resultType="me.zhengjie.modules.system.domain.dto.DashboardDataVo">
-        select t.text, t.value from (
-            select CONCAT(d.brand, ' | ', d.model) text, count(cl.id) value from bus_device d LEFT JOIN bus_command_log cl on d.id = cl.device_id GROUP BY d.id ORDER BY value desc
-        ) t limit 10
+        select d.brand text, count(1) value from bus_device d group by d.brand
     </select>
 
     <select id="getCardData" resultType="me.zhengjie.modules.system.domain.dto.DashboardDataVo">