苍穹外卖学习笔记(十二)

数据统计-Excel 报表

工作台

今日数据接口

WorkSpaceController

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
@RestController
@RequestMapping("/admin/workspace")
@Slf4j
@Api(tags = "工作台")
public class WorkSpaceController {

    @Autowired
    private WorkspaceService workspaceService;

    /**
     * 查询今日运营数据
     */
    @GetMapping("/businessData")
    @ApiOperation(value = "查询今日运营数据")
    public Result<BusinessDataVO> businessData() {
        log.info("查询今日运营数据");
        //获得当天的开始时间
        LocalDateTime begin = LocalDateTime.now().with(LocalTime.MIN);
        //获得当天的结束时间
        LocalDateTime end = LocalDateTime.now().with(LocalTime.MAX);
        BusinessDataVO businessDataVO = workspaceService.getBusinessData(begin, end);
        return Result.success(businessDataVO);
    }
}

WorkspaceService

1
2
3
4
5
6
7
public interface WorkspaceService {

    /**
     * 查询今日运营数据
     */
    BusinessDataVO getBusinessData(LocalDateTime begin, LocalDateTime end);
}

WorkspaceServiceImpl

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
@Service
@Slf4j
public class WorkspaceServiceImpl implements WorkspaceService {

    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private UserMapper userMapper;
    @Autowired
    private DishMapper dishMapper;
    @Autowired
    private SetmealMapper setmealMapper;

    /**
     * 查询今日运营数据
     */
    @Override
    public BusinessDataVO getBusinessData(LocalDateTime begin, LocalDateTime end) {
        /**
         * 营业额：当日已完成订单的总金额
         * 有效订单：当日已完成订单的数量
         * 订单完成率：有效订单数 / 总订单数
         * 平均客单价：营业额 / 有效订单数
         * 新增用户：当日新增用户的数量
         */
        Map map = new HashMap();
        map.put("begin", begin);
        map.put("end", end);

        //查询总订单数
        Integer totalOrderCount = orderMapper.countByMap(map);


        map.put("status", Orders.COMPLETED);
        //营业额
        Double turnover = orderMapper.sumByMap(map);
        turnover = turnover == null ? 0.0 : turnover;

        //有效订单数
        Integer validOrderCount = orderMapper.countByMap(map);

        Double unitPrice = 0.0;

        Double orderCompletionRate = 0.0;
        if (totalOrderCount != 0 && validOrderCount != 0) {
            //订单完成率
            orderCompletionRate = validOrderCount.doubleValue() / totalOrderCount;
            //平均客单价
            unitPrice = turnover / validOrderCount;
        }

        //新增用户数
        Integer newUsers = userMapper.countByMap(map);

        return BusinessDataVO.builder()
                .turnover(turnover)
                .validOrderCount(validOrderCount)
                .orderCompletionRate(orderCompletionRate)
                .unitPrice(unitPrice)
                .newUsers(newUsers)
                .build();
    }
}

订单管理接口

WorkSpaceController

1
2
3
4
5
6
7
8
9
10
/**
 * 查询订单管理数据
 */
@GetMapping("/overviewOrders")
@ApiOperation(value = "查询订单管理数据")
public Result<OrderOverViewVO> orderOverView() {
    log.info("查询订单概况");
    OrderOverViewVO orderOverViewVO = workspaceService.getOrderOverView();
    return Result.success(orderOverViewVO);
}

WorkspaceService

1
2
3
4
/**
    * 查询订单管理数据
    */
   OrderOverViewVO getOrderOverView();

WorkspaceServiceImpl

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
/**
     * 查询订单管理数据
     */
    @Override
    public OrderOverViewVO getOrderOverView() {
        Map map = new HashMap();
        map.put("begin", LocalDateTime.now().with(LocalTime.MIN));
        map.put("status", Orders.TO_BE_CONFIRMED);

        //待接单
        Integer waitingOrders = orderMapper.countByMap(map);

        //待派送
        map.put("status", Orders.CONFIRMED);
        Integer deliveredOrders = orderMapper.countByMap(map);

        //已完成
        map.put("status", Orders.COMPLETED);
        Integer completedOrders = orderMapper.countByMap(map);

        //已取消
        map.put("status", Orders.CANCELLED);
        Integer cancelledOrders = orderMapper.countByMap(map);

        //全部订单
        map.put("status", null);
        Integer allOrders = orderMapper.countByMap(map);

        return OrderOverViewVO.builder()
                .waitingOrders(waitingOrders)
                .deliveredOrders(deliveredOrders)
                .completedOrders(completedOrders)
                .cancelledOrders(cancelledOrders)
                .allOrders(allOrders)
                .build();
    }

菜品总览接口

WorkSpaceController

1
2
3
4
5
6
7
8
/**
 * 查询菜品总览
 */
@GetMapping("/overviewDishes")
@ApiOperation("查询菜品总览")
public Result<DishOverViewVO> dishOverView(){
    return Result.success(workspaceService.getDishOverView());
}

WorkspaceService

1
2
3
4
/**
 * 查询菜品管理数据
 */
DishOverViewVO getDishOverView();

WorkspaceServiceImpl

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
/**
     * 查询菜品总览
     */
    @Override
    public DishOverViewVO getDishOverView() {
        LambdaQueryWrapper<Dish> wrapper = new LambdaQueryWrapper<Dish>().eq(Dish::getStatus, StatusConstant.ENABLE);
        Long sold = dishMapper.selectCount(wrapper);

        Wrapper<Dish> wrapper1 = new LambdaQueryWrapper<Dish>().eq(Dish::getStatus, StatusConstant.DISABLE);
        Long discontinued = dishMapper.selectCount(wrapper1);

        return DishOverViewVO.builder()
                .sold(sold.intValue())
                .discontinued(discontinued.intValue())
                .build();
    }

套餐总览接口

WorkSpaceController

1
2
3
4
5
6
7
8
/**
 * 查询套餐总览
 */
@GetMapping("/overviewSetmeals")
@ApiOperation("查询套餐总览")
public Result<SetmealOverViewVO> setmealOverView(){
    return Result.success(workspaceService.getSetmealOverView());
}

WorkspaceService

1
2
3
4
/**
   * 查询套餐管理数据
   */
  SetmealOverViewVO getSetmealOverView();

WorkspaceServiceImpl

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
/**
    * 查询套餐总览
    */
   @Override
   public SetmealOverViewVO getSetmealOverView() {
       LambdaQueryWrapper<Setmeal> wrapper = new LambdaQueryWrapper<Setmeal>().eq(Setmeal::getStatus, StatusConstant.ENABLE);
       Long sold = setmealMapper.selectCount(wrapper);

       Wrapper<Setmeal> wrapper1 = new LambdaQueryWrapper<Setmeal>().eq(Setmeal::getStatus, StatusConstant.DISABLE);
       Long discontinued = setmealMapper.selectCount(wrapper1);

       return SetmealOverViewVO.builder()
               .sold(sold.intValue())
               .discontinued(discontinued.intValue())
               .build();
   }

Apache POI

介绍

Apache POI 是一个处理 Miscrosoft Office 各种文件格式的开源项目。简单来说就是，我们可以使用 POI 在 JAVA 程序中对 Miscrosoft Office 各种文件进行读写操作。

一般情况下，POI 都是用于操作 Excel 文件

应用场景：

  1. 银行网银系统导出交易明细
  2. 各种业务系统导出 Excel 报表
  3. 批量导入业务数据

入门案例

1. 导入 maven 坐标

1
2
3
4
5
6
7
8
9
10
11
<!-- poi -->
           <dependency>
               <groupId>org.apache.poi</groupId>
               <artifactId>poi</artifactId>
               <version>${poi}</version>
           </dependency>
           <dependency>
               <groupId>org.apache.poi</groupId>
               <artifactId>poi-ooxml</artifactId>
               <version>${poi}</version>
           </dependency>

2. POITest.java

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
package com.sky.test;

import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

/**
 * @author Jie.
 * @description: TODO
 * @date 2024/10/22
 * @version: 1.0
 */
public class POITest {

    //通过POI创建Excel文件并且写入文件内容
    public static void write() throws Exception{
        //在内存中创建Excel文件
        XSSFWorkbook excel = new XSSFWorkbook();
        //在Excel中创建一个Sheet页
        XSSFSheet sheet = excel.createSheet("info");
        //在Sheet中创建行对象,rownum从0开始
        XSSFRow row = sheet.createRow(0);
        //在每一行上创建单元格
        row.createCell(0).setCellValue("姓名");
        row.createCell(1).setCellValue("城市");

        row = sheet.createRow(1);

        row.createCell(0).setCellValue("张三");
        row.createCell(1).setCellValue("北京");

        row = sheet.createRow(2);

        row.createCell(0).setCellValue("李四");
        row.createCell(1).setCellValue("天津");

        FileOutputStream out = new FileOutputStream(new File("D:\\info.xlsx"));
        excel.write(out);

        // 关闭资源
        excel.close();
        out.close();
    }

    //通过POI读取Excel文件并且读入文件内容
    public static void read() throws Exception{
        //读取磁盘上已经存在的excel文件
        FileInputStream fileInputStream = new FileInputStream("D:\\info.xlsx");
        XSSFWorkbook excel = new XSSFWorkbook(fileInputStream);
        XSSFSheet sheet = excel.getSheetAt(0);
        int lastRowNum = sheet.getLastRowNum();

        for (int i = 1;i <= lastRowNum; i++) {
            XSSFRow row = sheet.getRow(i);
            String name = row.getCell(0).getStringCellValue();
            String name1 = row.getCell(1).getStringCellValue();
            System.out.println(name + " " + name1);
        }
    }

    public static void main(String[] args) throws Exception{
        write();
        read();
    }
}

导出运营数据 Excel 报表

ReportController

1
2
3
4
5
@GetMapping("/export")
@ApiOperation("导出Excel报表")
public void export(HttpServletResponse response) {
    reportService.exportBusinessData(response);
}

ReportService

1
2
3
4
5
/**
 * 导出
 * @param response 响应
 */
void exportBusinessData(HttpServletResponse response);

ReportServiceImpl

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
/**
     * 导出
     *
     * @param response 响应
     */
    @Override
    public void exportBusinessData(HttpServletResponse response) {
        //1. 查询数据库，获取营业数据
        LocalDate dateBegin = LocalDate.now().minusDays(30);
        LocalDate dateEnd = LocalDate.now().minusDays(1);
        //查询概览数据
        BusinessDataVO businessDataVO = workspaceService.getBusinessData(LocalDateTime.of(dateBegin, LocalTime.MIN),
                LocalDateTime.of(dateEnd, LocalTime.MAX));

        //2. 通过POI将数据写入到Excel文件中
        InputStream in = this.getClass().getClassLoader().getResourceAsStream("template/运营数据报表模板.xlsx");
        try {
            XSSFWorkbook excel = new XSSFWorkbook(in);
            //填充营业额数据
            XSSFSheet sheet = excel.getSheet("Sheet1");
            sheet.getRow(1).getCell(1).setCellValue("时间：" + dateBegin + "至" + dateEnd);
            XSSFRow row = sheet.getRow(3);
            row.getCell(2).setCellValue(businessDataVO.getTurnover());
            row.getCell(4).setCellValue(businessDataVO.getOrderCompletionRate());
            row.getCell(6).setCellValue(businessDataVO.getNewUsers());

            row = sheet.getRow(4);
            row.getCell(2).setCellValue(businessDataVO.getValidOrderCount());
            row.getCell(4).setCellValue(businessDataVO.getUnitPrice());

            //填充明细数据
            for (int i = 0; i < 30; i++) {
                LocalDate date = dateBegin.plusDays(i);
                //查询某一天概览数据
                BusinessDataVO businessData = workspaceService.getBusinessData(LocalDateTime.of(date, LocalTime.MIN),
                        LocalDateTime.of(date, LocalTime.MAX));
                row = sheet.getRow(7 + i);
                row.getCell(1).setCellValue(date.toString());
                row.getCell(2).setCellValue(businessData.getTurnover());
                row.getCell(3).setCellValue(businessData.getValidOrderCount());
                row.getCell(4).setCellValue(businessData.getOrderCompletionRate());
                row.getCell(5).setCellValue(businessData.getUnitPrice());
                row.getCell(6).setCellValue(businessData.getNewUsers());
            }

            //3. 通过输出流将Excel文件下载到客户端浏览器
            ServletOutputStream out = response.getOutputStream();
            excel.write(out);

            //4. 关闭资源
            out.close();
            excel.close();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

❤️❤️❤️ 完结撒花 ❤️❤️❤️