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POp:fileUpload calls bean constructor for each file
 

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  1. POp:fileUpload calls bean constructor for each file
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    <p>I'm trying to use <code>&lt;p:fileUpload&gt;</code> to upload a file. Here's the view: </p> <pre><code> &lt;h:form enctype="multipart/form-data"&gt; &lt;p:growl id="messages" showDetail="true" /&gt; &lt;p:fileUpload fileUploadListener="#{viewscopedBean.handleFileUpload}" mode="advanced" dragDropSupport="true" multiple="true" update="messages" /&gt; &lt;/h:form&gt; </code></pre> <p>Bean:</p> <pre><code>@ManagedBean @ViewScoped public class ViewscopedBean implements Serializable{ private List&lt;UploadedFile&gt; uploadedFiles; //to remember which files have been uploaded public ViewscopedBean() { super(); System.out.println("@constructor"); uploadedFiles = new ArrayList&lt;UploadedFile&gt;(); } public void handleFileUpload(FileUploadEvent event) { System.out.println("! HANDLE FILE UPLOAD !"); // do something } public List&lt;UploadedFile&gt; getUploadedFiles() { return uploadedFiles; } public void setUploadedFiles(List&lt;UploadedFile&gt; uploadedFiles) { this.uploadedFiles = uploadedFiles; } } </code></pre> <p><code>web.xml</code></p> <pre><code>&lt;filter&gt; &lt;filter-name&gt;PrimeFaces FileUpload Filter&lt;/filter-name&gt; &lt;filter-class&gt; org.primefaces.webapp.filter.FileUploadFilter &lt;/filter-class&gt; &lt;init-param&gt; &lt;param-name&gt;thresholdSize&lt;/param-name&gt; &lt;param-value&gt;512000&lt;/param-value&gt; &lt;/init-param&gt; &lt;/filter&gt; &lt;filter-mapping&gt; &lt;filter-name&gt;PrimeFaces FileUpload Filter&lt;/filter-name&gt; &lt;servlet-name&gt;Faces Servlet&lt;/servlet-name&gt; &lt;/filter-mapping&gt; </code></pre> <p>When I click on the <code>upload button</code>, the progressbar is filling up to 100% (like it does something), but then the page is reloaded (constructor is being called for every uploaded file) - the <code>handleFileUpload</code> method is never called.</p> <p>There aren't any errors or warnings, it just doesn't do what it should. I have JSF 2.0 and use Primefaces 4, maybe there is a problem?</p> <p>How is this caused and how can I solve it?</p>
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    1. USNiko
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    1. COyou have to have like this on your form when you do file uploads `<h:form enctype="multipart/form-data">` try like this whether you will have any luck
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      1. USSRy
    2. COHi, yes I already tried that. I will update my code
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    3. COAnd your bean is `viewscopedBean` , Can you show the `whole bean decleration` and what version of `JSF` you using?
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