From d6ab021200581270d63655c601aee279d14ec4a2 Mon Sep 17 00:00:00 2001
From: qjq <1766193529@qq.com>
Date: Wed, 16 Oct 2024 15:20:15 +0800
Subject: [PATCH] =?UTF-8?q?=E6=A0=B9=E6=8D=AE=E6=97=B6=E9=97=B4=E5=AF=BC?=
 =?UTF-8?q?=E5=87=BA=E5=A4=9A=E4=B8=AAsheet=20=E9=A1=B5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../CustomizeExcelController.java             | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/controller/admin/customizeExcel/CustomizeExcelController.java b/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/controller/admin/customizeExcel/CustomizeExcelController.java
index e9b39447..9d973860 100644
--- a/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/controller/admin/customizeExcel/CustomizeExcelController.java
+++ b/yudao-module-member/yudao-module-member-biz/src/main/java/cn/iocoder/yudao/module/member/controller/admin/customizeExcel/CustomizeExcelController.java
@@ -6,7 +6,9 @@ import cn.iocoder.yudao.framework.operatelog.core.annotations.OperateLog;
 import cn.iocoder.yudao.module.member.controller.admin.customizeExcel.vo.OrderExcelVO;
 import cn.iocoder.yudao.module.member.service.customizeExcel.CustomizeExcelService;
 import com.alibaba.excel.EasyExcel;
+import com.alibaba.excel.ExcelWriter;
 import com.alibaba.excel.converters.longconverter.LongStringConverter;
+import com.alibaba.excel.write.metadata.WriteSheet;
 import com.alibaba.excel.write.style.column.LongestMatchColumnWidthStyleStrategy;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
@@ -18,9 +20,12 @@ import org.springframework.web.bind.annotation.RestController;
 import javax.annotation.Resource;
 import javax.servlet.http.HttpServletResponse;
 import java.io.IOException;
+import java.io.OutputStream;
 import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
 import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
 
 import static cn.iocoder.yudao.framework.operatelog.core.enums.OperateTypeEnum.EXPORT;
 
@@ -47,4 +52,37 @@ public class CustomizeExcelController {
 
 
     }
+
+    /**
+     * 根据时间导出多个sheet 页
+     * @param list
+     * @param response
+     * @throws IOException
+     */
+    public void exporOrderDate(List<OrderExcelVO> list,HttpServletResponse response) throws IOException {
+        Map<String, List<OrderExcelVO>> collect = list.stream().collect(Collectors.groupingBy(OrderExcelVO::getDayTime));
+        // 按key（时间）排序，将数据按时间顺序放入列表
+        List<Map.Entry<String, List<OrderExcelVO>>> sortedEntries = collect.entrySet()
+                .stream()
+                .sorted(Map.Entry.comparingByKey())  // 按时间排序
+                .collect(Collectors.toList());
+        // 创建输出流
+        try (OutputStream outputStream = response.getOutputStream();
+             ExcelWriter excelWriter = EasyExcel.write(outputStream).build()) {
+            int sheetIndex = 0;
+            // 逐个创建Sheet，并写入每个时间段的数据
+            for (Map.Entry<String, List<OrderExcelVO>> entry : sortedEntries) {
+                WriteSheet writeSheet = EasyExcel.writerSheet(sheetIndex, "数据 " + entry.getKey())  // 使用时间作为sheet名
+                        .head(OrderExcelVO.class)
+                        .registerWriteHandler(new LongestMatchColumnWidthStyleStrategy())  // 自动列宽策略
+                        .build();
+                // 写入数据到当前Sheet
+                excelWriter.write(entry.getValue(), writeSheet);
+                sheetIndex++;
+            }
+            // 下载EXCEL，返回给前段stream流
+            excelWriter.finish();
+            outputStream.flush();
+        }
+    }
 }
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