Uploading File in Ajax Spring MVC Not Working

Question

I am uploading a file using ajax to spring mvc controller using the following code

var formData = new FormData();    
formData.append('file', file);

  $.ajax({
         url: url,
         data: formData,
         cache: false,
         contentType: false,
         processData: false,
         type: 'POST',
     });

I can see my data in the http post but i am getting null value in controller.

 @RequestMapping(value = { "/file.htm" }, method = RequestMethod.POST)

    public @ResponseBody String upload(@RequestParam(value="file",required=false) CommonsMultipartFile file 

            ) throws IOException {

        String response="";
}

I have tried with MultipartFile also. I have even tried to use MultipartHttpServletRequest and tried to obtain data from the request but cannot get it. Please let me know how to resolve it. Thanks

BlackJoker · Accepted Answer · 2012-12-18 06:23:50Z

1

try use @RequestPart instead of @RequestParam

answered Dec 18, 2012 at 6:23

BlackJoker

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1 Comment

SDC Over a year ago

I could still see the post data in the firebug console..but the value of the parameter "file" is still NULL in the controller..i am struggling with this for 2 days. please help..

adiga · Accepted Answer · 2017-11-17 12:31:15Z

1

var fd = new FormData();
fd.append( "file", $("input[name=file]").files[0]);

var ajaxReq =  $.ajax({
    url : 'kolfileUpload',
    type : 'POST',
    data : fd,
    cache : false,
    contentType : false,
    processData : false,

});

edited Nov 17, 2017 at 12:31

adiga

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answered Nov 17, 2017 at 12:21

abhineet

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1 Comment

adiga Over a year ago

While this code may answer the question, providing additional context regarding why and/or how this code answers the question improves its long-term value.

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