苍穹外卖--POI-导出运营数据Excel报表

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

@@ -16,6 +16,7 @@ import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
+import javax.servlet.http.HttpServletResponse;
 import java.time.LocalDate;
 
 @RestController
@@ -85,4 +86,14 @@ public class ReportController {
 
         return Result.success(vo);
     }
+
+    /**
+     * 使用响应对象，导出报表数据
+     * @param response
+     */
+    @ApiOperation("导出报表数据")
+    @GetMapping("/export")
+    public void exportExcel(HttpServletResponse response) throws Exception {
+        reportService.exportExcel(response);
+    }
 }

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

@@ -5,6 +5,7 @@ import com.sky.vo.SalesTop10ReportVO;
 import com.sky.vo.TurnoverReportVO;
 import com.sky.vo.UserReportVO;
 
+import javax.servlet.http.HttpServletResponse;
 import java.time.LocalDate;
 
 public interface ReportService {
@@ -39,4 +40,6 @@ public interface ReportService {
      * @return
      */
     SalesTop10ReportVO getTop10(LocalDate begin, LocalDate end);
+
+    void exportExcel(HttpServletResponse response) throws Exception;
 }

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

@@ -5,14 +5,19 @@ 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 com.sky.service.WorkspaceService;
+import com.sky.vo.*;
 import org.apache.commons.lang3.StringUtils;
+import org.apache.poi.xssf.usermodel.XSSFRow;
+import org.apache.poi.xssf.usermodel.XSSFSheet;
+import org.apache.poi.xssf.usermodel.XSSFWorkbook;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import javax.servlet.ServletOutputStream;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.io.InputStream;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.time.LocalTime;
@@ -31,6 +36,9 @@ public class ReportServiceImpl implements ReportService {
     @Autowired
     private UserMapper userMapper;
 
+    @Autowired
+    private WorkspaceService workspaceService;
+
 
     /**
      * 统计指定时间内每天的营业额数据
@@ -230,4 +238,58 @@ public class ReportServiceImpl implements ReportService {
 
         return salesTop10ReportVO;
     }
+
+    @Override
+    public void exportExcel(HttpServletResponse response) throws Exception {
+        //准备30天的今日数据（工作台模块实现完毕！！）
+        LocalDate now = LocalDate.now();//今日日期
+        LocalDate beginDate = now.minusDays(30);//开始日期
+        LocalDate endDate = now.minusDays(1);//结束日期
+
+        LocalDateTime beginTime = LocalDateTime.of(beginDate, LocalTime.MIN);
+        LocalDateTime endTime = LocalDateTime.of(endDate, LocalTime.MAX);
+
+        //查询近30天的每日数据
+        BusinessDataVO businessData = workspaceService.getBusinessData(beginTime, endTime);
+
+        //使用输入流读取服务器的模版，将30天的商业数据，填充到模版中
+        InputStream in = this.getClass().getClassLoader().getResourceAsStream("template/运营数据报表模板.xlsx");
+        XSSFWorkbook excel = new XSSFWorkbook(in);
+        XSSFSheet sheet = excel.getSheetAt(0);
+        //时间范围填充
+        sheet.getRow(1).getCell(1).setCellValue(beginDate.toString()+"至"+endDate.toString());
+        //概览数据填充
+        sheet.getRow(3).getCell(2).setCellValue(businessData.getTurnover());
+        sheet.getRow(3).getCell(4).setCellValue(businessData.getOrderCompletionRate());
+        sheet.getRow(3).getCell(6).setCellValue(businessData.getNewUsers());
+        sheet.getRow(4).getCell(2).setCellValue(businessData.getValidOrderCount());
+        sheet.getRow(4).getCell(4).setCellValue(businessData.getUnitPrice());
+
+        //填充明细数据，一共30行
+        for (int i = 0; i < 30; i++) {
+            //从开始日期，动态获取近30天的每天的日期
+            LocalDate date = beginDate.plusDays(i);//1-1 1-2 1-3  -----1-30
+
+            BusinessDataVO data = workspaceService.getBusinessData(LocalDateTime.of(date,LocalTime.MIN), LocalDateTime.of(date,LocalTime.MAX));
+            //获取动态的row
+            XSSFRow row = sheet.getRow(7 + i);
+            //动态填充一行数据
+            row.getCell(1).setCellValue(date.toString());
+            row.getCell(2).setCellValue(data.getTurnover());
+            row.getCell(3).setCellValue(data.getValidOrderCount());
+            row.getCell(4).setCellValue(data.getOrderCompletionRate());
+            row.getCell(5).setCellValue(data.getUnitPrice());
+            row.getCell(6).setCellValue(data.getNewUsers());
+
+        }
+        //填充完毕excel文件数据之后，通过响应对象的输出流，将excel字节数据输出到对应的客户端浏览器中
+
+        ServletOutputStream out = response.getOutputStream();
+        excel.write(out);
+
+        //资源释放
+        out.close();
+        excel.close();
+
+    }
 }