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POApache Commons File Upload-getting correpted file after upload
 

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  1. POApache Commons File Upload-getting correpted file after upload
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    <p>I successfully uploaded a text file (say Another.java) using the following code, but it gives me an error while trying to open the uploaded file. Thanks in advance.</p> <p>fileUpload.jsp</p> <pre><code>&lt;form action="test.jsp" method="post" enctype="multipart/form-data"&gt; &lt;input type="file" name="file"/&gt; &lt;br/&gt; &lt;input type="submit" value="Upload"&gt; &lt;/form&gt; &lt;/body&gt; </code></pre> <p>test.jsp</p> <pre><code>&lt;%@page import="org.apache.commons.fileupload.FileItem"%&gt; &lt;%@page import="org.apache.commons.fileupload.disk.DiskFileItemFactory"%&gt; &lt;%@page import="org.apache.commons.fileupload.servlet.ServletFileUpload"%&gt; &lt;%@page import="java.io.*"%&gt; &lt;%@page import="java.util.*"%&gt; &lt;%-- &lt;%@page import="org.apache.commons.io.*" %&gt; --%&gt; &lt;%@page import="org.apache.commons.io.*"%&gt; &lt;%@page import="org.apache.commons.fileupload.FileUploadException"%&gt; &lt;%@page contentType="text/html" pageEncoding="UTF-8"%&gt; &lt;% try { String username = ""; List&lt;FileItem&gt; items = new ServletFileUpload( new DiskFileItemFactory()).parseRequest(request); for (FileItem item : items) { if (item.isFormField()) { // Process regular form field (input type="text|radio|checkbox|etc", select, etc). String fieldname = item.getFieldName(); String fieldvalue = item.getString(); if (fieldname.equals("vsrd")) { username = fieldvalue; } // ... (do your job here) } else { // Process form file field (input type="file"). String fieldname = item.getFieldName(); String filename = FilenameUtils.getName(item.getName()); InputStream filecontent = item.getInputStream(); byte[] b = new byte[filecontent.available()]; FileOutputStream fos = new FileOutputStream( "/home/visruth/Desktop/Out" + filename); fos.write(b); fos.close(); // ... (do your job here) } } } catch (FileUploadException e) { throw new ServletException("Cannot parse multipart request.", e); } %&gt; </code></pre> <p>error while trying to open <code>OutAnother.java</code>:</p> <p><img src="https://i.stack.imgur.com/MRaoP.png" alt="enter image description here"></p>
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    1. USVisruth
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    1. This table or related slice is empty.
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    2. PO
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    1. This table or related slice is empty.
    1. COYou just created an empty byte array. You have NOT read content from InputStream.
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    2. CO@ lhuang Oh!!! I missed it. Thank you very much.
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      1. USVisruth
 

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