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导出大表

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haomingming 2026-01-04 12:18:35 +08:00
parent f66f6ce0ab
commit 64506eaa69
1 changed files with 48 additions and 12 deletions
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60
sa-admin/src/main/java/net/lab1024/sa/admin/module/business/caseplatformcase/controller/CaseplatformCaseExcelController.java
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@ -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")
.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
// 2. 先获取Workbook和Sheet，手动创建大标题行（行0），此时行未刷盘
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);
if (sheet == null) {
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) {