Myfaces问题

Question

我想在jboss portlet运行 myfaces,但打开页面时报错:
2007-12-12 12:44:21,653 ERROR [org.jboss.portal.portlet.container.org_apache_myfaces_portlet_MyFacesGenericPortlet] The portlet threw an exception
java.lang.NullPointerException
at org.apache.myfaces.application.DefaultViewHandlerSupport.calculateServletMapping(DefaultViewHandlerSupport.java:123)
at org.apache.myfaces.application.DefaultViewHandlerSupport.calculateViewId(DefaultViewHandlerSupport.java:44)
at org.apache.myfaces.application.jsp.JspViewHandlerImpl.createView(JspViewHandlerImpl.java:140)
at org.apache.myfaces.portlet.MyFacesGenericPortlet.nonFacesRequest(MyFacesGenericPortlet.java:320)
at org.apache.myfaces.portlet.MyFacesGenericPortlet.nonFacesRequest(MyFacesGenericPortlet.java:298)
at org.apache.myfaces.portlet.MyFacesGenericPortlet.facesRender(MyFacesGenericPortlet.java:380)
at org.apache.myfaces.portlet.MyFacesGenericPortlet.doView(MyFacesGenericPortlet.java:266)
at javax.portlet.GenericPortlet.doDispatch(GenericPortlet.java:133)
at javax.portlet.GenericPortlet.render(GenericPortlet.java:306)
at org.jboss.portal.portlet.impl.jsr168.PortletContainerImpl.invokeRender(PortletContainerImpl.java:483)
at org.jboss.portal.portlet.impl.jsr168.PortletContainerImpl.dispatch(PortletContainerImpl.java:405)
at org.jboss.portal.portlet.container.PortletContainerInvoker$1.invoke(PortletContainerInvoker.java:86)
at org.jboss.portal.common.invocation.Invocation.invokeNext(Invocation.java:131)
at org.jboss.portal.core.aspects.portlet.TransactionInterceptor.org$jboss$portal$core$aspects$portlet$TransactionInterceptor$invokeNotSupported$aop(TransactionInterceptor.java:86)
at org.jboss.portal.core.aspects.portlet.TransactionInterceptor$invokeNotSupported_N4547270787964792031.invokeNext(TransactionInterceptor$invokeNotSupported_N4547270787964792031.java)
at org.jboss.aspects.tx.TxPolicy.invokeInNoTx(TxPolicy.java:66)
at org.jboss.aspects.tx.TxInterceptor$NotSupported.invoke(TxInterceptor.java:112)
at org.jboss.portal.core.aspects.portlet.TransactionInterceptor$invokeNotSupported_N4547270787964792031.invokeNext(TransactionInterceptor$invokeNotSupported_N4547270787964792031.java)
at org.jboss.aspects.tx.TxPolicy.invokeInNoTx(TxPolicy.java:66)
at org.jboss.aspects.tx.TxInterceptor$NotSupported.invoke(TxInterceptor.java:102)
at org.jboss.portal.core.aspects.portlet.TransactionInterceptor$invokeNotSupported_N4547270787964792031.invokeNext(TransactionInterceptor$invokeNotSupported_N4547270787964792031.java)
at org.jboss.portal.core.aspects.portlet.TransactionInterceptor.invokeNotSupported(TransactionInterceptor.java)
下面是我的配置:
1.我加入了Myfaces-aip-1.2.jar and Myfaces-impl-1.2.jar
2.我的portlet.xml是:
  <description>MyfacePortlet</description>
        <portlet-name>MyfacePortlet</portlet-name>
        <display-name>MyfacePortlet</display-name>
        <portlet-class>org.apache.myfaces.portlet.MyFacesGenericPortlet</portlet-class>
        <expiration-cache>0</expiration-cache>
       <!--
        <init-param>
            <name>com.sun.faces.portlet.INIT_VIEW</name>
            <value>/welcomeJSF.jsp</value>
        </init-param>
       -->
        
        <init-param>
            <name> default-view</name>
            <value>/welcomeJSF.jsp</value>
        </init-param>
3.web.xml
     <context-param>
       <param-name>org.jboss.jbossfaces.WAR_BUNDLES_JSF_IMPL</param-name>
       <param-value>true</param-value>
    </context-param>    <context-param>
        <param-name>com.sun.faces.verifyObjects</param-name>
        <param-value>false</param-value>
    </context-param>
    <context-param>
        <param-name>com.sun.faces.validateXml</param-name>
        <param-value>true</param-value>
    </context-param>
    <context-param>
        <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
        <param-value>client</param-value>
    </context-param>
    <servlet>
        <servlet-name>Faces Servlet</servlet-name>
        <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
        </servlet>
    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>/faces/*</url-pattern>
    </servlet-mapping>