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POKept getting Target Unreachable, identifier resolved to null in JSF web app
 

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    <p>i have a simple problem here i am making a simple jsf web app that can upload file but i kept getting </p> <pre><code>Target Unreachable, identifier 'upload' resolved to null </code></pre> <p>here's my upload class</p> <pre><code>package SimpleLogin; import java.io.IOException; import javax.faces.application.FacesMessage; import javax.faces.bean.ManagedBean; import javax.faces.bean.RequestScoped; import javax.faces.context.FacesContext; import org.apache.commons.io.FilenameUtils; import org.apache.myfaces.custom.fileupload.UploadedFile; @ManagedBean @RequestScoped public class upload { private UploadedFile uploadedFile; public void submit() throws IOException { String fileName = FilenameUtils.getName(uploadedFile.getName()); String contentType = uploadedFile.getContentType(); byte[] bytes = uploadedFile.getBytes(); FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(String.format("File '%s' of type '%s' successfully uploaded!", fileName, contentType))); } public UploadedFile getUploadedFile() { return uploadedFile; } public void setUploadedFile(UploadedFile uploadedFile) { this.uploadedFile = uploadedFile; } </code></pre> <p>}</p> <p>and my index page</p> <pre><code>&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt; &lt;html xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:h="http://java.sun.com/jsf/html" xmlns:t="http://myfaces.apache.org/tomahawk" &gt; &lt;h:head&gt; &lt;title&gt;Facelet Title&lt;/title&gt; &lt;h:outputStylesheet name="css/jsfcrud.css"/&gt; &lt;/h:head&gt; &lt;h:body&gt; &lt;ui:composition template="./template.xhtml"&gt; &lt;ui:define name="body"&gt; &lt;h:form&gt; &lt;h:commandLink action="/contacts/List" value="Show All Contacts Items"/&gt; &lt;/h:form&gt; &lt;h:form enctype="multipart/form-data"&gt; &lt;t:inputFileUpload value="#{upload.uploadedFile}" /&gt; &lt;h:commandButton value="submit" action="#{upload.submit}" /&gt; &lt;h:messages /&gt; &lt;/h:form&gt; &lt;/ui:define&gt; &lt;/ui:composition&gt; </code></pre> <p></p> <p></p> <p>oh yeah, here's my web.xml</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee /web-app_3_0.xsd"&gt; &lt;context-param&gt; &lt;param-name&gt;javax.faces.PROJECT_STAGE&lt;/param-name&gt; &lt;param-value&gt;Development&lt;/param-value&gt; &lt;/context-param&gt; &lt;servlet&gt; &lt;servlet-name&gt;Faces Servlet&lt;/servlet-name&gt; &lt;servlet-class&gt;javax.faces.webapp.FacesServlet&lt;/servlet-class&gt; &lt;load-on-startup&gt;1&lt;/load-on-startup&gt; &lt;/servlet&gt; &lt;servlet-mapping&gt; &lt;servlet-name&gt;Faces Servlet&lt;/servlet-name&gt; &lt;url-pattern&gt;/faces/*&lt;/url-pattern&gt; &lt;/servlet-mapping&gt; &lt;filter&gt; &lt;filter-name&gt;MyFacesExtensionsFilter&lt;/filter-name&gt; &lt;filter-class&gt;org.apache.myfaces.webapp.filter.ExtensionsFilter&lt;/filter-class&gt; &lt;/filter&gt; &lt;filter-mapping&gt; &lt;filter-name&gt;MyFacesExtensionsFilter&lt;/filter-name&gt; &lt;servlet-name&gt;Faces Servlet&lt;/servlet-name&gt; &lt;/filter-mapping&gt; &lt;session-config&gt; &lt;session-timeout&gt; 30 &lt;/session-timeout&gt; &lt;/session-config&gt; &lt;welcome-file-list&gt; &lt;welcome-file&gt;faces/login.xhtml&lt;/welcome-file&gt; &lt;/welcome-file-list&gt; </code></pre> <p></p> <p>Sorry for the long delay here my face config.xml</p> <pre><code>&lt;faces-config version="2.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns /javaee/web-facesconfig_2_0.xsd"&gt; &lt;managed-bean&gt; &lt;managed-bean-name&gt;user&lt;/managed-bean-name&gt; &lt;managed-bean-class&gt;SimpleLogin.simpleLogin&lt;/managed-bean-class&gt; &lt;managed-bean-scope&gt;request&lt;/managed-bean-scope&gt; &lt;/managed-bean&gt; &lt;managed-bean&gt; &lt;managed-bean-name&gt;bean&lt;/managed-bean-name&gt; &lt;managed-bean-class&gt;SimpleLogin.Upload&lt;/managed-bean-class&gt; &lt;managed-bean-scope&gt;session&lt;/managed-bean-scope&gt;&lt;/managed-bean&gt; &lt;navigation-rule&gt; &lt;from-view-id&gt;/login.xhtml&lt;/from-view-id&gt; &lt;navigation-case&gt; &lt;from-action&gt; #{simpleLogin.CheckValidUser} &lt;/from-action&gt; &lt;from-outcome&gt;fail&lt;/from-outcome&gt; &lt;to-view-id&gt;/resultforfail.xhtml&lt;/to-view-id&gt; &lt;/navigation-case&gt; &lt;navigation-case&gt; &lt;from-action&gt; #{simpleLogin.CheckValidUser} &lt;/from-action&gt; &lt;from-outcome&gt;success&lt;/from-outcome&gt; &lt;to-view-id&gt;/index.xhtml&lt;/to-view-id&gt; &lt;/navigation-case&gt; &lt;/navigation-rule&gt; &lt;application&gt; &lt;resource-bundle&gt; &lt;base-name&gt;/Bundle&lt;/base-name&gt; &lt;var&gt;bundle&lt;/var&gt; &lt;/resource-bundle&gt; &lt;/application&gt; </code></pre> <p></p> <p>and my template</p> <pre><code> &lt;html xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:h="http://java.sun.com/jsf/html"&gt; &lt;h:head&gt; &lt;meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /&gt; &lt;title&gt;&lt;ui:insert name="title"&gt;Default Title&lt;/ui:insert&gt;&lt;/title&gt; &lt;h:outputStylesheet name="css/jsfcrud.css"/&gt; &lt;h:outputStylesheet name="css/cssLayout.css"/&gt; &lt;h:outputStylesheet name="css/default.css"/&gt; &lt;/h:head&gt; &lt;h:body&gt; &lt;div id="top"&gt; &lt;ui:insert name="top"&gt;Ini Header&lt;/ui:insert&gt; &lt;/div&gt; &lt;h1&gt; &lt;ui:insert name="title"&gt;&lt;/ui:insert&gt; &lt;/h1&gt; &lt;p&gt; &lt;ui:insert name="body"&gt;&lt;/ui:insert&gt; &lt;/p&gt; &lt;div id="bottom"&gt; &lt;ui:insert name="bottom"&gt;Ini Footer&lt;/ui:insert&gt; &lt;/div&gt; &lt;/h:body&gt; </code></pre> <p></p> <p>what is the problem ? do i not clearly state the upload class ? Any help is good :)</p>
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    1. COI think you should try changing your ManagedBean's class name to `Upload`.
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    2. CO@Mr.J4mes i already do that, still not working
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    3. CODid you make any update to your `web.xml` file?
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