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update Excel写出包装器添加泛型用于限定write入参类型

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秋辞未寒
2025-08-31 13:24:12 +08:00
parent 7bb4838132
commit 424b2ea164
3 changed files with 22 additions and 32 deletions
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15
ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/service/impl/ExportExcelServiceImpl.java
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@ -9,10 +9,9 @@ import lombok.RequiredArgsConstructor;
import org.dromara.common.core.constant.SystemConstants;
import org.dromara.common.core.utils.StreamUtils;
import org.dromara.common.core.utils.file.FileUtils;
import org.dromara.common.excel.core.CellMergeStrategy;
import org.dromara.common.excel.core.DropDownOptions;
import org.dromara.common.excel.utils.ExcelUtil;
import org.dromara.common.excel.utils.ExcelWriterHelper;
import org.dromara.common.excel.utils.ExcelWriterWrapper;
import org.dromara.demo.domain.vo.ExportDemoVo;
import org.dromara.demo.service.IExportExcelService;
import org.springframework.stereotype.Service;
@ -246,7 +245,7 @@ public class ExportExcelServiceImpl implements IExportExcelService {
FileUtils.setAttachmentResponseHeader(response, filename);
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=UTF-8");
ExcelUtil.exportExcel(ExportDemoVo.class, response.getOutputStream(), helper -> {
ExcelUtil.exportExcel(ExportDemoVo.class, response.getOutputStream(), wrapper -> {
// 创建表格数据，业务中一般通过数据库查询
List<ExportDemoVo> excelDataList = new ArrayList<>();
for (int i = 0; i < 30; i++) {
@ -264,13 +263,13 @@ public class ExportExcelServiceImpl implements IExportExcelService {
}
// 创建表格
WriteSheet sheet = ExcelWriterHelper.sheetBuilder("自定义导出demo")
WriteSheet sheet = ExcelWriterWrapper.sheetBuilder("自定义导出demo")
// 合并单元格
// .registerWriteHandler(new CellMergeStrategy(excelDataList, true))
.build();
helper.write(excelDataList, sheet);
wrapper.write(excelDataList, sheet);
List<ExportDemoVo> excelDataList2 = new ArrayList<>();
for (int i = 0; i < 20; i++) {
@ -288,11 +287,11 @@ public class ExportExcelServiceImpl implements IExportExcelService {
excelDataList2.add(everyRowData);
}
helper.write(excelDataList2, sheet);
wrapper.write(excelDataList2, sheet);
// 或者在同一个excel中创建多个表格
// WriteSheet sheet2 = ExcelWriterHelper.sheetBuilder("自定义导出demo2").build();
// helper.write(excelDataList2, sheet2);
// WriteSheet sheet2 = ExcelWriterWrapper.sheetBuilder("自定义导出demo2").build();
// wrapper.write(excelDataList2, sheet2);
});
}
}