使用ExcelWriter導出數據到Excel

1.引入hutool的pom依賴

　　<dependency>
　　　　<groupId>cn.hutool</groupId>
　　　　<artifactId>hutool-all</artifactId>
　　　　<version>5.1.4</version>
　　</dependency>

　2.工具類代碼

public class ExcelExportUtils {

    public static void  exportExcelByResponse(ExcelWriter excelWriter, HttpServletResponse response, String fileName, HttpServletRequest request) throws IOException {
        String userAgent = request.getHeader("USER-AGENT");
        response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=utf-8");
            if(StringUtils.contains(userAgent, "MSIE")||StringUtils.contains(userAgent, "Trident") || StringUtils.contains(userAgent,"Edge")){//IE 瀏覽器
                fileName = URLEncoder.encode(fileName,"UTF8");
            }else{//火狐，google等其他瀏覽器
                fileName = new String(fileName.getBytes("UTF-8"), "ISO-8859-1");
            }
            response.setHeader("Content-Disposition", "attachment; filename=" + fileName);
            //客戶端不緩存
            response.setCharacterEncoding("UTF-8");
            response.addHeader("Pargam", "no-cache");
            response.addHeader("Cache-Control", "no-cache");
            Workbook workbook = excelWriter.getWorkbook();
            ServletOutputStream outputStream = response.getOutputStream();
            workbook.write(outputStream);
            workbook.close();
            outputStream.close();
    }
}

3.業務調用

@Override
public void exportDailyReportDetailExcel(ReportDetailVO reportDetailVO, HttpServletResponse response, HttpServletRequest request) {
        ExcelWriter bigWriter = ExcelUtil.getBigWriter();
        try {
            // 導出數據
            List<ReportDetailVO> reportDetailVOList = statisticalReportMapper.getDailyReportDetailList(reportDetailVO);
            // 設置列寬
            bigWriter.setColumnWidth(0, 15);
            bigWriter.setColumnWidth(1, 10);
            bigWriter.setColumnWidth(2, 10);
            bigWriter.setColumnWidth(3, 20);
            bigWriter.setColumnWidth(4, 20);
            bigWriter.setColumnWidth(5, 15);
            // 導出列名，對應實體類屬性名
            bigWriter.addHeaderAlias("companyName", "單位");
            bigWriter.addHeaderAlias("deptName", "部門");
            bigWriter.addHeaderAlias("nickName", "姓名");
            bigWriter.addHeaderAlias("idCard", "身份證");
            bigWriter.addHeaderAlias("address", "身份證地址");
            bigWriter.addHeaderAlias("phone", "聯系電話");
            bigWriter.setOnlyAlias(true);
            bigWriter.write(reportDetailVOList);
        } catch (Exception e) {
            e.printStackTrace();
            response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        }
        try {
            ExcelExportUtils.exportExcelByResponse(bigWriter, response, "報備統計" + reportDetailVO.getSearchDate(), request);
        } catch (IOException e) {
            throw new BaseFrameException(1, "導出失敗", false);
        }
    }
}