苍穹外卖--订单统计功能实现

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

@@ -3,6 +3,7 @@ package com.sky.controller.admin;
 
 import com.sky.result.Result;
 import com.sky.service.ReportService;
+import com.sky.vo.OrderReportVO;
 import com.sky.vo.TurnoverReportVO;
 import com.sky.vo.UserReportVO;
 import io.swagger.annotations.Api;
@@ -54,4 +55,19 @@ public class ReportController {
 
         return Result.success(vo);
     }
+
+
+    @GetMapping("/ordersStatistics")
+    @ApiOperation("订单统计")
+    public Result<OrderReportVO> ordersStatistics(
+            @DateTimeFormat(pattern = "yyyy-MM-dd")
+            LocalDate begin,
+            @DateTimeFormat(pattern = "yyyy-MM-dd")
+            LocalDate end){
+        log.info("订单统计：{}，{}",begin,end);
+        //调用业务层，订单统计功能
+        OrderReportVO vo = reportService.getordersStatistics(begin,end);
+
+        return Result.success(vo);
+    }
 }

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

@@ -60,4 +60,6 @@ public interface OrderMapper {
     List<Orders> getByStatusAndOrderTime(Integer status, LocalDateTime time);
 
     Double sumByMap(Map map);
+
+    Integer countByMap(Map map);
 }

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

@@ -1,5 +1,6 @@
 package com.sky.service;
 
+import com.sky.vo.OrderReportVO;
 import com.sky.vo.TurnoverReportVO;
 import com.sky.vo.UserReportVO;
 
@@ -21,4 +22,12 @@ public interface ReportService {
      * @return
      */
     UserReportVO getUserStatistics(LocalDate begin, LocalDate end);
+
+    /**
+     * 订单统计
+     * @param begin
+     * @param end
+     * @return
+     */
+    OrderReportVO getordersStatistics(LocalDate begin, LocalDate end);
 }

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

@@ -4,6 +4,7 @@ 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.TurnoverReportVO;
 import com.sky.vo.UserReportVO;
 import org.apache.commons.lang3.StringUtils;
@@ -119,4 +120,69 @@ public class ReportServiceImpl implements ReportService {
 
         return userReportVO;
     }
+
+    /**
+     * 订单统计
+     * @param begin
+     * @param end
+     * @return
+     */
+    @Override
+    public OrderReportVO getordersStatistics(LocalDate begin, LocalDate end) {
+        List<LocalDate> dateList = new ArrayList<>();
+        dateList.add(begin);
+        //不停地创建日期对象，直到end
+        while (!begin.equals(end)){
+            begin =  begin.plusDays(1);
+            dateList.add(begin);
+        }
+        //定义VO对象所需的4个局部变量
+        List<Integer> orderCountList = new ArrayList<>();
+        List<Integer> validOrderCountList = new ArrayList<>();
+        //订单总数
+         Integer totalOrderCount = 0;
+        //有效订单数
+         Integer validOrderCount = 0;
+        //订单完成率
+         Double orderCompletionRate = 0.0;
+
+         //根据日期，计算出以上5个数据
+        for (LocalDate localDate : dateList) {
+            //准备好开始和结束时间
+            LocalDateTime beginTime = LocalDateTime.of(localDate, LocalTime.MIN);
+            LocalDateTime endTime = LocalDateTime.of(localDate, LocalTime.MAX);
+
+            //select count(1) from orders where order_time > ? and order_time < ?
+            //select count(1) from orders where order_time > ? and order_time < ? and status = 5;
+            Map map = new HashMap();
+            map.put("end", endTime);
+            map.put("begin", beginTime);
+            Integer totalCount =  orderMapper.countByMap(map);
+            orderCountList.add(totalCount);
+            //累加对应日期的订单数量
+            totalOrderCount += totalCount;
+
+            map.put("status", Orders.COMPLETED);
+            Integer validCount =  orderMapper.countByMap(map);
+            validOrderCountList.add(validCount);
+            //累加对应日期的订单数量
+            validOrderCount += validCount;
+
+        }
+        //循环结束，对时间范围内的总订单数和有效订单数，已经准备好了，计算订单完成率
+        if (totalOrderCount != 0) {
+            orderCompletionRate = validOrderCount.doubleValue()/totalOrderCount;//注意：java中的运算符前后数据类型，计算的结果随大范围的数据类型
+        }
+
+        //封装数据
+        OrderReportVO orderReportVO = OrderReportVO.builder()
+                .validOrderCountList(StringUtils.join(validOrderCountList, ","))
+                .dateList(StringUtils.join(dateList, ","))
+                .orderCountList(StringUtils.join(orderCountList, ","))
+                .totalOrderCount(totalOrderCount)
+                .validOrderCount(validOrderCount)
+                .orderCompletionRate(orderCompletionRate).build();
+
+        return orderReportVO;
+    }
 }

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

@@ -71,5 +71,19 @@
             </if>
         </where>
     </select>
+    <select id="countByMap" resultType="java.lang.Integer" parameterType="java.util.Map">
+        select count(1) from orders
+        <where>
+            <if test="begin != null">
+                and order_time &gt; #{begin}
+            </if>
+            <if test="end != null">
+                and order_time &lt; #{end}
+            </if>
+            <if test="status != null">
+                and status = #{status}
+            </if>
+        </where>
+    </select>
 
 </mapper>