[Débutant][JSF]Faces context not found

**hubeaul** · 28/02/2007, 13h35

Bonjour,
Quand je tente d'utiliser des tag JSF dans mes JSP j'obtiens une exception.
Voici la trace de l'exception reçue :

Code :

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13:24:34,732 ERROR [UIComponentTag] Faces context not found. getResponseWriter will fail. Check if the FacesServlet has been initialized at all in your web.xml.
13:24:34,810 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
	at javax.faces.webapp.UIComponentTag.setupResponseWriter(UIComponentTag.java:929)
	at javax.faces.webapp.UIComponentTag.doStartTag(UIComponentTag.java:310)
	at org.apache.jsp.jsp.index_jsp._jspx_meth_h_outputText_0(index_jsp.java:85)
	at org.apache.jsp.jsp.index_jsp._jspService(index_jsp.java:59)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
	at java.lang.Thread.run(Thread.java:534)

Voici mon fichier web.xml :

Code :

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<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
	<!-- Configuration de JSF -->
	<context-param>
		<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
		<param-value>client</param-value>
	</context-param>	
	<context-param>
		<param-name>javax.faces.CONFIG_FILES</param-name>
		<param-value>/WEB-INF/faces-config.xml</param-value>
	</context-param>
 
	<servlet>
		<servlet-name>FacesServlet</servlet-name>
		<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>FacesServlet</servlet-name>
		<url-pattern>/faces/*</url-pattern>
	</servlet-mapping>
	<!-- Fin de la configuration de JSF -->
 
	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
		<welcome-file>index.htm</welcome-file>
		<welcome-file>index.jsp</welcome-file>
		<welcome-file>default.html</welcome-file>
		<welcome-file>default.htm</welcome-file>
		<welcome-file>default.jsp</welcome-file>
	</welcome-file-list>
</web-app>

Voici mon fichier faces-config.xml :

Code :

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<?xml version="1.0"?>
<!--
Copyright 2003 Sun Microsystems, Inc. All rights reserved.
SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
-->
<!DOCTYPE faces-config PUBLIC "-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.0//EN" "http://java.sun.com/dtd/web-facesconfig_1_0.dtd">
<faces-config>
  <application>
    <locale-config>
      <default-locale>fr</default-locale>
    </locale-config>
  </application>
</faces-config>

Voici enfin le code de ma page JSP :

Code :

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<%@ page contentType="text/html" %>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="core" %>
<core:view>
	<html:outputText value="Hello le World ! (en JSF !)" />
</core:view>

Avec ces informations, pouvez-vous me dire comment corriger le problème ?

Merci d'avance.

hubeaul

**Shivan** · 28/02/2007, 14h58

<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>

<html:outputText value="Hello le World ! (en JSF !)" />

Ton prefix c'est h et pas html...

A part ça je ne vois rien qui me semble anormal

**hubeaul** · 28/02/2007, 15h33

Bonjour,

Je viens de corriger cette erreur, mais maintenant j'obtiens une StackOverflowError.
Voici la trace de l'erreur :

Code :

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15:46:49,334 ERROR [[FacesServlet]] Servlet.service() for servlet FacesServlet threw exception
java.lang.StackOverflowError
15:46:49,334 ERROR [[FacesServlet]] Servlet.service() for servlet FacesServlet threw exception
javax.faces.FacesException: javax.servlet.ServletException
	at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:429)
	at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:211)
	at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
	at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:132)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:140)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
	at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:419)
	at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:211)
	at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
	at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:132)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:140)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
	at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:419)
	at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:211)
	at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
	at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:132)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:140)

Quelqu'un aurait-il une idée pour corriger cette nouvelle erreur ?

hubeaul

**hubeaul** · 01/03/2007, 11h00

Le problème est résolu, mais je ne sais absolument pas quelle est la solution.

hlionel

[Débutant][JSF]Faces context not found

JSF Java

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