springboot业务功能实战（十三）poi导出并以web下载方式保存excel

      /**
       * 人员导出
       *
       * @param sysSysUserVO
       * @throws IOException
       */
         @PostMapping("/exportUser")
         @ApiOperation(value = "导出人员excel", notes = "导出人员excel")
         public void
              exportUser(@ApiParam(name = "人员id", value = "人员id", required = false) @RequestBody List<SysUserVO> sysSysUserVO)
                  throws IOException {
              List<SysUserVO> middleList = new ArrayList<>();
             // 查询用户详细信息
             for (SysUserVO sysUserVO : sysSysUserVO) {
                  List<SysUserVO> resultListSysUser = sysUserService.querySysUserAll(sysUserVO);
                  userInfoUtil.completionInformation(resultListSysUser.get(0));
                  middleList.add(resultListSysUser.get(0));
              }
             // excle格式
             String[] headers = {"用户名", "姓名", "密码", "启动状态", "岗位", "角色", "所属部门", "手机", "邮箱", "身份证号"};
              HSSFWorkbook workbook = new HSSFWorkbook();
              HSSFSheet sheet = workbook.createSheet();
             // 设置列宽
              sheet.setDefaultColumnWidth((short)18);
              HSSFRow row = sheet.createRow(0);
             for (short i = 0; i < headers.length; i++) {
                 // 创建单元格，每行多少数据就创建多少个单元格
                  HSSFCell cell = row.createCell(i);
                  HSSFRichTextString text = new HSSFRichTextString(headers[i]);
                 // 给单元格设置内容
                  cell.setCellValue(text);
              }
             for (int j = 0; j < middleList.size(); j++) {
                  SysUserVO export = middleList.get(j);
                 // 从第二行开始填充数据
                  row = sheet.createRow(j + 1);
                  List<String> datas = new ArrayList<>();
                 String userName = export.getUsername();
                 String trueName = export.getTureName();
                 String password = export.getPassword();
                 String status = String.valueOf(export.getIsEnabled());
                 String postName = export.getPostName();
                 String roleName = export.getRoleName();
                 String organName = export.getOrganizationName();
                 String phone = export.getMobile();
                 String email = export.getEmail();
                 String identityCard = export.getIdentityCard();
                  datas.add(userName);
                  datas.add(trueName);
                  datas.add(password);
                  datas.add(status);
                  datas.add(postName);
                  datas.add(roleName);
                  datas.add(organName);
                  datas.add(phone);
                  datas.add(email);
                  datas.add(identityCard);
                 for (int k = 0; k < datas.size(); k++) {
                     String string = datas.get(k);
                      HSSFCell cell = row.createCell(k);
                      HSSFRichTextString richString = new HSSFRichTextString(string);
                      HSSFFont font3 = workbook.createFont();
                     // 定义Excel数据颜色，这里设置为蓝色
                      font3.setColor(HSSFColor.BLUE.index);
                      richString.applyFont(font3);
                      cell.setCellValue(richString);
                  }
              }
             String fileName = "人员导出.xls";
             // 导出
              HttpServletResponse response =
                  ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getResponse();
              RequestAttributes requsetAttributes = RequestContextHolder.currentRequestAttributes();
              HttpServletRequest request = ((ServletRequestAttributes)requsetAttributes).getRequest();
             // 获得浏览器代理信息
              final String userAgent = request.getHeader("USER-AGENT");
             // 判断浏览器代理并分别设置响应给浏览器的编码格式
             if (StringUtils.contains(userAgent, "MSIE") || StringUtils.contains(userAgent, "Trident")) {
                 // IE浏览器
                  fileName = URLEncoder.encode(fileName, "UTF-8");
              } else if (StringUtils.contains(userAgent, "Mozilla")) {
                 // google,火狐浏览器
                  fileName = new String(fileName.getBytes("UTF-8"), "ISO8859-1");
              } else {
                 // 其他浏览器
                  fileName = URLEncoder.encode(fileName, "UTF-8");// 其他浏览器
              }
             // 设置HTTP响应头
              response.reset();
             // 重置 如果不在页面上显示而是下载下来 则放开注释
              response.setContentType("application/octet-stream");
              response.addHeader("Content-Disposition", "attachment;filename=\"" + fileName + "\"");
              OutputStream os = response.getOutputStream();
              workbook.write(os);
              os.close();
          }
  
 

文章来源: baocl.blog.csdn.net，作者：小黄鸡1992，版权归原作者所有，如需转载，请联系作者。

原文链接：baocl.blog.csdn.net/article/details/115063026