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Thread: File upload problem

  1. #1
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    Default File upload problem

    Greetings,

    I have a problem with uploading of big files.
    I have simple html form on client side.
    On server side a have a servlet that processes multipart requests with commons-fileupload library. I set max request size :
    		DiskFileItemFactory factory = new DiskFileItemFactory();
    		ServletFileUpload upload = new ServletFileUpload(factory);
                    upload.setSizeMax(maxRequestSize);
    		upload.setFileSizeMax(maxRequestSize);
    So, if the file is too big
                    upload.parseRequest(request);
    throws an exception.

    The problem is:
    When uploaded file is too big servlet throws SizeLimitExceededException and finishes his work very quickly but on client side form submit continues and I have to wait several minutes until it ends. Why this is happened? And how can I cancel client form submit when servlet throws an exception?

    I use JBoss 4.2.3 and commons-fileupload-1.2.2.

    Thanks in advance


  2. #2
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    Default Re: File upload problem

    it maybe a problem how your action class handle the exception.
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    Super Moderator Sean4u's Avatar
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    Default Re: File upload problem

    HTTP/1.1: Status Code Definitions

    How well a 413+close works depends on your web framework's support for close-after-response and the way your client reacts to a closed connection. It may be that the client will not read the response until the request has finished, in which case closing the connection mid-request will prevent your client seeing the 413 response. It might not be too bad if you were to use scripts to upload files, but on a form submit I think closing the connection would be catastrophic.

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