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POblueimp jquery file upload Empty file upload result struts2, fileitems empty
 

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    <p>I am using Blueimp and server side is Java, Struts2. I couldn't find examples using Java, anyway I managed to use the sample code, but I am getting <code>"Empty file upload result"</code> when I am trying to upload a single file also. The HTML part is the same, I am not pasting here as it may go lengthy. </p> <p><strong>The jQuery is:</strong></p> <pre><code>$(document).ready(function () { 'use strict'; // Initialize the jQuery File Upload widget: $('#fileupload').fileupload(); // Enable iframe cross-domain access via redirect option: $('#fileupload').fileupload( 'option', 'redirect', window.location.href.replace( /\/[^\/]*$/, '/cors/result.html?%s' ) ); if (window.location.hostname === 'blueimp.github.com') { // Demo settings: $('#fileupload').fileupload('option', { url: '//jquery-file-upload.appspot.com/', maxFileSize: 5000000, acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i, process: [ { action: 'load', fileTypes: /^image\/(gif|jpeg|png)$/, maxFileSize: 20000000 // 20MB }, { action: 'resize', maxWidth: 1440, maxHeight: 900 }, { action: 'save' } ] }); // Upload server status check for browsers with CORS support: if ($.support.cors) { $.ajax({ url: '//jquery-file-upload.appspot.com/', type: 'HEAD' }).fail(function () { $('&lt;span class="alert alert-error"/&gt;') .text('Upload server currently unavailable - ' + new Date()) .appendTo('#fileupload'); }); } } else { // Load existing files: $('#fileupload').each(function () { var that = this; $.getJSON(this.action, function (result) { if (result &amp;&amp; result.length) { $(that).fileupload('option', 'done') .call(that, null, {result: result}); } }); }); } }); </code></pre> <p><strong>The action:</strong></p> <pre><code>@Namespace("/") @InterceptorRefs({ @InterceptorRef("fileUpload"), @InterceptorRef("basicStack") }) public class UploadAction extends ActionSupport implements ServletRequestAware, ServletResponseAware{ HttpServletRequest req; HttpServletResponse res; // private File fileUploadPath=new File("c:\\temp\\"); private List&lt;File&gt; uploads = new ArrayList&lt;File&gt;(); private List&lt;String&gt; uploadFileNames = new ArrayList&lt;String&gt;(); private List&lt;String&gt; uploadContentTypes = new ArrayList&lt;String&gt;(); public List&lt;File&gt; getUploads() { return uploads; } public void setUploads(List&lt;File&gt; uploads) { this.uploads = uploads; } public List&lt;String&gt; getUploadFileNames() { return uploadFileNames; } public void setUploadFileNames(List&lt;String&gt; uploadFileNames) { this.uploadFileNames = uploadFileNames; } public List&lt;String&gt; getUploadContentTypes() { return uploadContentTypes; } public void setUploadContentTypes(List&lt;String&gt; uploadContentTypes) { this.uploadContentTypes = uploadContentTypes; } @Action(value="upload", results = { @Result(name="success", type="json") }) public String uploadFiles() throws IOException { System.out.println("upload1"); System.out.println("files:"); for (File u: uploads) { System.out.println("*** "+u+"\t"+u.length()); } System.out.println("filenames:"); for (String n: uploadFileNames) { System.out.println("*** "+n); } System.out.println("content types:"); for (String c: uploadContentTypes) { System.out.println("*** "+c); } System.out.println("\n\n"); if (!ServletFileUpload.isMultipartContent(req)) { throw new IllegalArgumentException("Request is not multipart, please 'multipart/form-data' enctype for your form."); } return SUCCESS; } @Override public void setServletRequest(HttpServletRequest hsr) { this.req=hsr; } @Override public void setServletResponse(HttpServletResponse hsr) { this.res=hsr; } } </code></pre> <p>As I said, I have changed the action file, but I still get all empty values for files, and in the Firebug's GET response I see <code>"Request is not multipart, please 'multipart/form-data' enctype for your form"</code></p> <p>Thanks &amp; Regards. </p>
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