导出大表

sa-admin/src/main/java/net/lab1024/sa/admin/module/business/caseplatformcase/controller/CaseplatformCaseExcelController.java

@@ -146,29 +146,65 @@ public class CaseplatformCaseExcelController {
             contentStyle.setBorderRight(BorderStyle.THIN);
 
 //            ExcelWriter writer = EasyExcel.write(outputStream, ExportExpertCaseExcelVo.class)
+//            ExcelWriter writer = EasyExcel.write(response.getOutputStream(), ExportExpertCaseExcelVo.class)
+//                    .head(head)
+//                    .excelType(ExcelTypeEnum.XLSX)
+//                    .registerWriteHandler(new HorizontalCellStyleStrategy(headStyle, contentStyle))
+//                    .build();
+//
+//            WriteSheet writeSheet = EasyExcel.writerSheet("劳务费明细")
+//                    .needHead(true)
+//                    .relativeHeadRowIndex(1) // 数据从第3行开始，前2行为标题
+//                    .build();
+//
+//            // 写数据
+//            writer.write(processedList, writeSheet);
+//
+//            // 合并大标题
+//            Workbook workbook = (Workbook) writer.writeContext().writeWorkbookHolder().getWorkbook();
+//            Sheet sheet = workbook.getSheetAt(0);
+//            sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, head.size() - 1));
+//            //Row titleRow = sheet.createRow(0);
+//            Row titleRow = sheet.getRow(0);
+//            if (titleRow == null) {
+//                titleRow = sheet.createRow(0);
+//            }
+
+            // 1. 构建ExcelWriter（先不写入数据，先处理大标题行）
             ExcelWriter writer = EasyExcel.write(response.getOutputStream(), ExportExpertCaseExcelVo.class)
                     .head(head)
                     .excelType(ExcelTypeEnum.XLSX)
                     .registerWriteHandler(new HorizontalCellStyleStrategy(headStyle, contentStyle))
+                    // 关键：禁用EasyExcel自动创建表头行（后续手动控制行号）
+                    .needHead(false)
                     .build();
 
-            WriteSheet writeSheet = EasyExcel.writerSheet("劳务费明细")
+            // 2. 先获取Workbook和Sheet，手动创建大标题行（行0），此时行未刷盘
-                    .needHead(true)
-                    .relativeHeadRowIndex(1) // 数据从第3行开始，前2行为标题
-                    .build();
-
-            // 写数据
-            writer.write(processedList, writeSheet);
-
-            // 合并大标题
             Workbook workbook = (Workbook) writer.writeContext().writeWorkbookHolder().getWorkbook();
             Sheet sheet = workbook.getSheetAt(0);
-            sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, head.size() - 1));
+            if (sheet == null) {
-            //Row titleRow = sheet.createRow(0);
+                sheet = workbook.createSheet("劳务费明细");
+            }
+
+            // 3. 手动创建行0（大标题行），此时行在内存中，未刷盘
             Row titleRow = sheet.getRow(0);
             if (titleRow == null) {
                 titleRow = sheet.createRow(0);
             }
+
+            // 合并大标题行（0行0列 到 0行最后一列）
+            sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, head.size() - 1));
+
+
+            // 4. 构建WriteSheet：表头从行1开始，数据从行2开始（对应relativeHeadRowIndex(1)）
+            WriteSheet writeSheet = EasyExcel.writerSheet("劳务费明细")
+                    .needHead(true) // 重新开启表头，表头写入行1
+                    .relativeHeadRowIndex(1) // 数据从行2开始（表头行1 + 1）
+                    .build();
+
+            // 5. 最后写入数据（行号递增：行0→行1→行2+，无回头修改）
+            writer.write(processedList, writeSheet);
+
             titleRow.setHeightInPoints(30); // 设置标题行高
             Cell titleCell = titleRow.createCell(0);
             titleCell.setCellValue("人工肝诊疗病例征集项目专家劳务费表");
@@ -251,7 +287,7 @@ public class CaseplatformCaseExcelController {
             response.setContentType("multipart/form-data");
             response.setCharacterEncoding("utf-8");
             writer.finish();
-
+            response.getOutputStream().flush();
             outputStream.close();
 
         } catch (Exception e) {