结果
代码
private static final String EXPORT_CONTENT_TYPE = "application/vnd.ms-excel";private static final String EXPORT_ENCODING = "UTF-8";@PostMapping("/exportTest")@ApiOperation("导出测试")@RequiresPermissions("dashboard:export")@TestApiEnvpublic void exportTest(@Validated @RequestBody ExportTestRequest<ExportTestVo> request) {Page<ExportTestVo> page = service.getList(request.cancelPage());List<ExportTestExcel> vos = BeanUtils.copyBeans(page.getRecords(), ExportTestExcel::new);ExcelUtil.exportData("222", ExportTestExcel.class, vos);}
public static <T> void exportData(String name,Class<?> headClass,List<T> data){exportDataNative(name, name, headClass, data);}private static <T> void exportDataNative(String excelName, String sheetName, Object head, List<T> data) {Assert.notNull(head,()->new BusinessException("head不能为null"));try {excelName = URLEncoder.encode(excelName + ExcelTypeEnum.XLS.getValue(),EXPORT_ENCODING);HttpServletResponse response = SpringUtils.getResponse();response.setContentType(EXPORT_CONTENT_TYPE);response.setCharacterEncoding(EXPORT_ENCODING);response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + excelName);// 创建excelExcelWriterBuilder write = EasyExcelFactory.write(response.getOutputStream());if(head instanceof List){//noinspection uncheckedwrite.head((List<List<String>>) head);}else if(head instanceof Class){//noinspection rawtypesClass<?> headClass = (Class) head;write.head(headClass);if(ExcelGroupMergeStrategy.contains(headClass,data.size())){ExcelGroupMergeStrategy mergeStrategy = ExcelGroupMergeStrategy.generate(headClass,data.size());write.registerWriteHandler(mergeStrategy);}}else {log.error("exportDataNative() head类型不能为"+head.getClass().getName());throw new BusinessException("不支持该head类型");}// 自适应列宽（不需要就忽略）write.registerWriteHandler(new LongestMatchColumnWidthStyleStrategy()).sheet(sheetName).doWrite(data);} catch (Exception e) {e.printStackTrace();throw new BusinessException("下载报表异常");}}
修复
方式一
把EXPORT_CONTENT_TYPE的值改成application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
把ExcelTypeEnum.XLS.getValue()改成ExcelTypeEnum.XLSX.getValue()
方式二
controller导出方法参数列表里添加HttpServletResponse response参数
@PostMapping("/exportTest")@ApiOperation("导出测试")@RequiresPermissions("dashboard:export")@TestApiEnvpublic void exportTest(HttpServletResponse response,@Validated @RequestBody ExportTestRequest<ExportTestVo> request) {
提示
前后端
content-type需要一致后端使用
application/vnd.ms-excel前端也要使用application/vnd.ms-excel后端使用
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet前端也要使用application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
