苍穹外卖--营业额统计

营业额统计是基于折现图来展现,并且按照天来展示的。实际上,就是某一个时间范围之内的每一天的营业额。同时,不管光标放在哪个点上,那么它就会把具体的数值展示出来。并且还需要注意日期并不是固定写死的,是由上边时间选择器来决定。比如选择是近7天、或者是近30日,或者是本周,就会把相应这个时间段之内的每一天日期通过横坐标展示。

代码开发

VO设计

根据接口定义设计对应的VO:

在sky-pojo模块,TurnoverReportVO.java已定义

package com.sky.vo;

import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.io.Serializable;

@Data
@Builder
@NoArgsConstructor
@AllArgsConstructor
public class TurnoverReportVO implements Serializable {

    //日期,以逗号分隔,例如:2022-10-01,2022-10-02,2022-10-03
    private String dateList;

    //营业额,以逗号分隔,例如:406.0,1520.0,75.0
    private String turnoverList;

}
Controller层

根据接口定义创建ReportController:

package com.sky.controller.admin;

import com.sky.result.Result;
import com.sky.service.ReportService;
import com.sky.vo.TurnoverReportVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.time.LocalDate;

/**
 * 报表
 */
@RestController
@RequestMapping("/admin/report")
@Slf4j
@Api(tags = "统计报表相关接口")
public class ReportController {

    @Autowired
    private ReportService reportService;

    /**
     * 营业额数据统计
     *
     * @param begin
     * @param end
     * @return
     */
    @GetMapping("/turnoverStatistics")
    @ApiOperation("营业额数据统计")
    public Result<TurnoverReportVO> turnoverStatistics(
            @DateTimeFormat(pattern = "yyyy-MM-dd")
                    LocalDate begin,
            @DateTimeFormat(pattern = "yyyy-MM-dd")
                    LocalDate end) {
        return Result.success(reportService.getTurnover(begin, end));
    }

}
Service层接口

创建ReportService接口,声明getTurnover方法:

package com.sky.service;

import com.sky.vo.TurnoverReportVO;
import java.time.LocalDate;

public interface ReportService {

    /**
     * 根据时间区间统计营业额
     * @param beginTime
     * @param endTime
     * @return
     */
    TurnoverReportVO getTurnover(LocalDate beginTime, LocalDate endTime);
}
Service层实现类

创建ReportServiceImpl实现类,实现getTurnover方法:

package com.sky.service.impl;

import com.sky.entity.Orders;
import com.sky.mapper.OrderMapper;
import com.sky.service.ReportService;
import com.sky.vo.TurnoverReportVO;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Service
@Slf4j
public class ReportServiceImpl implements ReportService {

    @Autowired
    private OrderMapper orderMapper;

    /**
     * 根据时间区间统计营业额
     * @param begin
     * @param end
     * @return
     */
    public TurnoverReportVO getTurnover(LocalDate begin, LocalDate end) {
        List<LocalDate> dateList = new ArrayList<>();
        dateList.add(begin);

        while (!begin.equals(end)){
            begin = begin.plusDays(1);//日期计算,获得指定日期后1天的日期
            dateList.add(begin);
        }
        
       List<Double> turnoverList = new ArrayList<>();
        for (LocalDate date : dateList) {
            LocalDateTime beginTime = LocalDateTime.of(date, LocalTime.MIN);
            LocalDateTime endTime = LocalDateTime.of(date, LocalTime.MAX);
            Map map = new HashMap();
        	map.put("status", Orders.COMPLETED);
        	map.put("begin",beginTime);
        	map.put("end", endTime);
            Double turnover = orderMapper.sumByMap(map); 
            turnover = turnover == null ? 0.0 : turnover;
            turnoverList.add(turnover);
        }

        //数据封装
        return TurnoverReportVO.builder()
                .dateList(StringUtils.join(dateList,","))
                .turnoverList(StringUtils.join(turnoverList,","))
                .build();
    }
}
Mapper层

在OrderMapper接口声明sumByMap方法:

	/**
     * 根据动态条件统计营业额
     * @param map
     */
    Double sumByMap(Map map);

在OrderMapper.xml文件中编写动态SQL:

<select id="sumByMap" resultType="java.lang.Double">
        select sum(amount) from orders
        <where>
            <if test="status != null">
                and status = #{status}
            if>
            <if test="begin != null">
                and order_time >= #{begin}
            if>
            <if test="end != null">
                and order_time <= #{end}
            if>
        where>
select>

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