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Detailed explanation of problems that occur when uploading ajaxfileupload

零下一度
Release: 2017-07-20 14:28:13
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1. The following problems will occur when uploading ajaxfileupload:

2. There are many solutions on the Internet. Here, I found another one, maybe your error will be caused by this reason

------The reason is: You do not need to return to the foreground in the general handler Data format string

3. An example is given below:

  前台: 
  <style type="text/css">         
  .fileLink{position: relative;display: inline-block;background: #fff;
  border: 1px solid #0980D0;border-radius: 4px;
  padding: 2px 8px;margin-left:10px;margin-top:10px;overflow: hidden;color: #1E88C7;text-decoration: none;text-indent: 0;line-height: 20px;} 4         
  .fileLink input {position: absolute;font-size: 100px;right: 0;top: 0;opacity: 0;} 5         .fileLink:hover {background: #AADFFD;border-color: #78C3F3;
  cursor:pointer;color: #004974;text-decoration: none;} 6     
  </style> 7 
  <span class="fL fileLink" style="padding-left: 10px;">选择文件<input type="file" id="uploadify" name="uploadify" value="上传数据" /></span> 8 <script src="../../Plugins/jquery/jquery-1.7.2.min.js?1.1.11" type="text/javascript"></script> 9 <script src="../../Plugins/ajaxfileupload.js?1.1.11" type="text/javascript"></script>10 11 
  <script>12        
  $("#uploadify").on("change", function () 
  {13             
  //var file = $("#uploadify")[0].files[0];14             
  $.ajaxFileUpload({15                 
  url: './ImportDynamic.ashx',16                 
  fileElementId: 'uploadify',17                 
  dataType: 'text',18                 
  success: function (data, status) {19                     
  alert(1);20                 },21                 
  error: function () { }22             });23         }); 
  </script>25  26 一般处理程序:27             
  context.Response.ContentType = "text/plain";28             
  var filePath = "uploadfile/xxx.xls";29             
  filePath = context.Server.MapPath(filePath);30             
  Import.GetCommonReportFile(filePath);31             
  //context.Response.Write("返回文本数据,否则前台就会报如上错误");
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