苍穹外卖--销量前十统计功能实现

sky-server/src/main/java/com/sky/controller/admin/ReportController.java

@@ -4,6 +4,7 @@ package com.sky.controller.admin;
 import com.sky.result.Result;
 import com.sky.service.ReportService;
 import com.sky.vo.OrderReportVO;
+import com.sky.vo.SalesTop10ReportVO;
 import com.sky.vo.TurnoverReportVO;
 import com.sky.vo.UserReportVO;
 import io.swagger.annotations.Api;
@@ -70,4 +71,18 @@ public class ReportController {
 
         return Result.success(vo);
     }
+
+    @GetMapping("/top10")
+    @ApiOperation("销量前十统计")
+    public Result<SalesTop10ReportVO> top10(
+            @DateTimeFormat(pattern = "yyyy-MM-dd")
+            LocalDate begin,
+            @DateTimeFormat(pattern = "yyyy-MM-dd")
+            LocalDate end){
+        log.info("销量前十统计：{}，{}",begin,end);
+        //调用业务层，销量前十统计功能
+        SalesTop10ReportVO vo = reportService.getTop10(begin,end);
+
+        return Result.success(vo);
+    }
 }

sky-server/src/main/java/com/sky/mapper/OrderMapper.java

@@ -1,6 +1,7 @@
 package com.sky.mapper;
 
 import com.github.pagehelper.Page;
+import com.sky.dto.GoodsSalesDTO;
 import com.sky.dto.OrdersPageQueryDTO;
 import com.sky.entity.Orders;
 import org.apache.ibatis.annotations.*;
@@ -62,4 +63,6 @@ public interface OrderMapper {
     Double sumByMap(Map map);
 
     Integer countByMap(Map map);
+
+    List<GoodsSalesDTO> getTop10(LocalDateTime begin, LocalDateTime end);
 }

sky-server/src/main/java/com/sky/service/ReportService.java

@@ -1,6 +1,7 @@
 package com.sky.service;
 
 import com.sky.vo.OrderReportVO;
+import com.sky.vo.SalesTop10ReportVO;
 import com.sky.vo.TurnoverReportVO;
 import com.sky.vo.UserReportVO;
 
@@ -30,4 +31,12 @@ public interface ReportService {
      * @return
      */
     OrderReportVO getordersStatistics(LocalDate begin, LocalDate end);
+
+    /**
+     * 销量前十统计功能
+     * @param begin
+     * @param end
+     * @return
+     */
+    SalesTop10ReportVO getTop10(LocalDate begin, LocalDate end);
 }

sky-server/src/main/java/com/sky/service/impl/ReportServiceImpl.java

@@ -1,10 +1,12 @@
 package com.sky.service.impl;
 
+import com.sky.dto.GoodsSalesDTO;
 import com.sky.entity.Orders;
 import com.sky.mapper.OrderMapper;
 import com.sky.mapper.UserMapper;
 import com.sky.service.ReportService;
 import com.sky.vo.OrderReportVO;
+import com.sky.vo.SalesTop10ReportVO;
 import com.sky.vo.TurnoverReportVO;
 import com.sky.vo.UserReportVO;
 import org.apache.commons.lang3.StringUtils;
@@ -18,6 +20,7 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.stream.Collectors;
 
 @Service
 public class ReportServiceImpl implements ReportService {
@@ -185,4 +188,46 @@ public class ReportServiceImpl implements ReportService {
 
         return orderReportVO;
     }
+
+    /**
+     * 销量前十统计功能
+     * @param begin
+     * @param end
+     * @return
+     */
+    @Override
+    public SalesTop10ReportVO getTop10(LocalDate begin, LocalDate end) {
+
+        //商品名称列表，以逗号分隔，例如：鱼香肉丝,宫保鸡丁,水煮鱼
+        List<String> nameList = new ArrayList<>();
+
+        //销量列表，以逗号分隔，例如：260,215,200
+        List<Integer> numberList = new ArrayList<>();
+
+        //统计菜品，不同口味的菜品属于同一种菜品，应该要统计到一起，并且要以已完成的订单的数据为准，所以要从订单相关的明细表中获取数据
+        //在明细表中以name字段来分组查询，查询出对应菜品名的销量为多少
+        /*
+        select od.name , sum(od.number) as num
+            from order_detail od ,orders o
+                where od.order_id = o.id and o.order_time > ? and o.order_time < ?
+                    group by od.name order by num DESC;
+         */
+
+        //准备好开始和结束时间
+        LocalDateTime beginTime = LocalDateTime.of(begin, LocalTime.MIN);
+        LocalDateTime endTime = LocalDateTime.of(end, LocalTime.MAX);
+
+        //根据时间区间，计算出该区间的销量前十的商品
+        List<GoodsSalesDTO> dtoList = orderMapper.getTop10(beginTime,endTime);
+        nameList = dtoList.stream().map(dto -> dto.getName()).collect(Collectors.toList());
+        numberList = dtoList.stream().map(dto -> dto.getNumber()).collect(Collectors.toList());
+
+        //封装数据
+        SalesTop10ReportVO salesTop10ReportVO = SalesTop10ReportVO.builder()
+                .numberList(StringUtils.join(numberList, ","))
+                .nameList(StringUtils.join(nameList, ","))
+                .build();
+
+        return salesTop10ReportVO;
+    }
 }

sky-server/src/main/resources/mapper/OrderMapper.xml

@@ -86,4 +86,19 @@
         </where>
     </select>
 
+    <select id="getTop10" resultType="com.sky.dto.GoodsSalesDTO">
+        SELECT od.name,SUM(od.number) number
+        FROM order_detail od ,orders o
+        WHERE od.order_id = o.id AND o.status = 5
+        <if test="begin != null">
+            and o.order_time &gt; #{begin}
+        </if>
+        <if test="end != null">
+            and o.order_time &lt; #{end}
+        </if>
+        GROUP BY od.name
+        ORDER BY number desc
+        limit 10
+    </select>
+
 </mapper>