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feat add Excel工具类支持更灵活的自定义导出方式，以便用户分批处理导出数据

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秋辞未寒
2025-08-30 18:09:01 +08:00
parent 20516758ea
commit 7bb4838132
5 changed files with 258 additions and 0 deletions
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12
ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/controller/TestExcelController.java
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@ -1,5 +1,6 @@
package org.dromara.demo.controller;
import cn.dev33.satoken.annotation.SaIgnore;
import cn.hutool.core.collection.CollUtil;
import jakarta.servlet.http.HttpServletResponse;
import lombok.AllArgsConstructor;
@ -14,6 +15,7 @@ import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
@ -94,6 +96,16 @@ public class TestExcelController {
exportExcelService.exportWithOptions(response);
}
/**
* 自定义导出
*
* @param response /
*/
@GetMapping("/customExport")
public void customExport(HttpServletResponse response) throws IOException {
exportExcelService.customExport(response);
}
/**
* 多个sheet导出
*/

9
ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/service/IExportExcelService.java
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@ -2,6 +2,8 @@ package org.dromara.demo.service;
import jakarta.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
* 导出下拉框Excel示例
*
@ -15,4 +17,11 @@ public interface IExportExcelService {
* @param response /
*/
void exportWithOptions(HttpServletResponse response);
/**
* 自定义导出
*
* @param response /
*/
void customExport(HttpServletResponse response) throws IOException;
}

62
ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/service/impl/ExportExcelServiceImpl.java
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@ -2,17 +2,22 @@ package org.dromara.demo.service.impl;
import cn.hutool.core.util.RandomUtil;
import cn.hutool.core.util.StrUtil;
import cn.idev.excel.write.metadata.WriteSheet;
import jakarta.servlet.http.HttpServletResponse;
import lombok.Data;
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.demo.domain.vo.ExportDemoVo;
import org.dromara.demo.service.IExportExcelService;
import org.springframework.stereotype.Service;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
@ -233,4 +238,61 @@ public class ExportExcelServiceImpl implements IExportExcelService {
this.name = name;
}
}
@Override
public void customExport(HttpServletResponse response) throws IOException {
String filename = ExcelUtil.encodingFilename("自定义导出");
FileUtils.setAttachmentResponseHeader(response, filename);
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=UTF-8");
ExcelUtil.exportExcel(ExportDemoVo.class, response.getOutputStream(), helper -> {
// 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++) {
// 模拟数据库中的一条数据
ExportDemoVo everyRowData = new ExportDemoVo();
everyRowData.setNickName("用户-" + i);
everyRowData.setUserStatus(SystemConstants.NORMAL);
everyRowData.setGender("1");
everyRowData.setPhoneNumber(String.format("175%08d", i));
everyRowData.setEmail(String.format("175%08d", i) + "@163.com");
everyRowData.setProvinceId(i);
everyRowData.setCityId(i);
everyRowData.setAreaId(i);
excelDataList.add(everyRowData);
}
// 创建表格
WriteSheet sheet = ExcelWriterHelper.sheetBuilder("自定义导出demo")
// 合并单元格
// .registerWriteHandler(new CellMergeStrategy(excelDataList, true))
.build();
helper.write(excelDataList, sheet);
List<ExportDemoVo> excelDataList2 = new ArrayList<>();
for (int i = 0; i < 20; i++) {
int index = 1000 + i;
// 模拟数据库中的一条数据
ExportDemoVo everyRowData = new ExportDemoVo();
everyRowData.setNickName("用户-" + index);
everyRowData.setUserStatus(SystemConstants.NORMAL);
everyRowData.setGender("1");
everyRowData.setPhoneNumber(String.format("175%08d", index));
everyRowData.setEmail(String.format("175%08d", index) + "@163.com");
everyRowData.setProvinceId(index);
everyRowData.setCityId(index);
everyRowData.setAreaId(index);
excelDataList2.add(everyRowData);
}
helper.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);
});
}
}