Solve the problem of AjaxSubmit uploading files prompt to download files under IE

This article mainly introduces how to solve the problem of AjaxSubmit uploading files under IE and prompting to download files. Friends who are interested in ajax can refer to the article about solving the problem of AjaxSubmit uploading files under IE and prompting to download files.

springmvc backend ：

@RequestMapping(value="scoreFileUpload",produces = "text/html; charset=utf-8") 
  @ResponseBody 
  public String upload(HttpSession session,@RequestParam("file1") MultipartFile file,@RequestParam("paperId") String paperId,HttpServletRequest request) { 
  //获取登录人员的id 
  Integer userId = (Integer) session.getAttribute(BaseConstant.SESSION_UERID_KEY); 
  JSONObject json = new JSONObject(); 
  if (request instanceof MultipartHttpServletRequest) { 
    //获取上传文件的文件名 
      String fileName = file.getOriginalFilename(); 
      String subfix = FileUtils.getFileExtend(fileName); 
    } 
return ""; 
  }

js：End

$('#fileForm').submit(function() { 
    var _businessDetailId = $("#businessDetailId").val(); 
    var _paperId = $("#paperId").val(); 
    var url = "scoreFileUpload?paperId="+_paperId+"&businessDetailId="+_businessDetailId; 
    var optionss = {  
         dataType:"text/html",  
         type:'post',  
         url: url,  
      //  beforeSubmit:showRequest,  
         complete:showResponse, 
         clearForm:false, 
        timeout:  3000000  
    }; 
    //提交表单 
    $(this).ajaxSubmit(optionss); 
    // !!! Important !!! 
    // 为了防止普通浏览器进行表单提交和产生页面导航（防止页面刷新？）返回false 
    return false; 
  });<pre name="code" class="javascript">function showResponse(data) { 
  data = JSON.parse(data.responseText); 
  if(data.type != null) { 
  } 
}

If the returned type is json, this problem only occurs in IE, but is normal in Chrome and Firefox. To solve the problem, only text/html can be returned.
The type returned by the backend cannot be json, but text/html, and then convert the returned type to json type.

The above is what the editor introduces to you to solve the problem of AjaxSubmit uploading files under IE and prompting to download files. I hope it will be helpful to everyone! !

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