post请求，下载excl文件（文件由poi生成）

 

JS部分：

新建一个from在影藏的div下，然后提交这个from

function downLoadExcl(){

 $("#submitForm").remove();
 
 var supplierInfoIds = "111";
 var path = "${ctxPath}/secKill/exportActivityUrl.do";
 
  var html =  '

';
  html +=     '';
  html +=     '

';
 
  $("#exportdiv").append(html);
  $("#submitForm").submit();

}

 

java后台处理请求部分：

 

    private static final String ATTACHMENT_FILENAME = "attachment; filename=\"";

    private static final String STRING = "\"";

    private static final String CONTENT_DISPOSITION = "Content-disposition";

    private static final String APPLICATION_OCTET_STREAM = "APPLICATION/OCTET-STREAM";

    private static final String ISO_8859_1 = "ISO-8859-1";

    private static final String UTF_8 = "UTF-8";

    private static final String USER_AGENT = "user-agent";

    private static final String MSIE = "msie";

 

    @RequestMapping("exportActivityUrl.do")
 public void exportActivityUrl(HttpServletRequest request,
   HttpServletResponse response) {
  Map paramMap = this.getParamMapFromRequest(request);
  // 生成excel
  HSSFWorkbook workbook = secKillService
    .querysupplierInfoByIdsAndExport(paramMap);

  String excelname = "";
  excelname = "秒杀活动链接.xls";
  String newexcelname = "";
   String isIE = request.getHeader(USER_AGENT);

  try {
   if (isIE.toLowerCase().indexOf(MSIE) < 0) {
    // 解决中文excel文件名乱码问题,非IE
    newexcelname = new String(excelname.getBytes(UTF_8),
      ISO_8859_1);
   } else {
    // 解决中文excel文件名乱码问题,IE
    newexcelname = URLEncoder.encode(excelname, UTF_8);
   }
  } catch (Exception e) {
   logger.logException(e);
  }

  response.reset();
   response.setContentType(APPLICATION_OCTET_STREAM);
         response.setHeader(CONTENT_DISPOSITION, ATTACHMENT_FILENAME + newexcelname + STRING); // 实现下载

  try {
   workbook.write(response.getOutputStream());// 实现输出
   response.flushBuffer();
  } catch (Exception e) {
   logger.logException(e);
  }

 }

 

java后台，生成excl部分

 

    /**
     * 活动信息
     */
    private static final String[] SIGNUP_KEY = { "商品编码", "商品名称", "秒杀价", "活动数量", "运费", "预热开始时间", "秒杀开始时间", "秒杀结束时间",
        "秒杀活动链接" };
   
    /**
     * 活动信息
     */
    private static final String[] SIGNUP_VALUE = { "productCode", "productName", "seckillPrice", "amount",
        "mailingPrice", "preheadStartTime", "secKillStartTime", "secKillEndTime", "activityUrl" };

 

@Override
public HSSFWorkbook querysupplierInfoByIdsAndExport(
  Map paramMap) {
 
  // 声明一个工作薄
    HSSFWorkbook workbook = new HSSFWorkbook();
    // 查询导出信息
    List> supplierInfoList = dalClient.queryForList(NAMESPACE + ".querysupplierInfoByIds", paramMap);
    // 设置单元格文本格式
    HSSFCellStyle cellStyle = workbook.createCellStyle();
    HSSFDataFormat format = workbook.createDataFormat();
    cellStyle.setDataFormat(format.getFormat("@"));
    // 生成一个sheet
    HSSFSheet sheet = workbook.createSheet("秒杀活动链接");
   
    HSSFRow row0 = sheet.createRow(0);// 定义第一行
    // 由该字段判断应该创建几列
    int keylen =SIGNUP_KEY.length;
   
    for (int i = 0; i < keylen; i++) {
        HSSFCell cell = row0.createCell(i);// 定义第i列
        cell.setCellValue(SIGNUP_KEY[i]);// 给第i列赋值
        cell.setCellStyle(cellStyle);// 设置为文本格式
    }
   
    if (CollectionUtils.isNotEmpty(supplierInfoList)) {
        // 放入值
        int len = supplierInfoList.size();
        Map productMap;
        for (int i = 0; i < len; i++) {
            productMap = supplierInfoList.get(i);
            HSSFRow newRow = sheet.createRow(i + 1);// 创建新的一行
            newRow.setRowStyle(cellStyle); // 设置为文本格式
            for (int j = 0; j < keylen; j++) {
                HSSFCell newCell = newRow.createCell(j);// 定义第i列
                newCell.setCellValue(MapUtils.getString(productMap, SIGNUP_VALUE[j], ""));// 给第i列赋值
                newCell.setCellStyle(cellStyle);
            }
        }
    }
    return workbook;
 
}