与 primefaces 集成时无法加载 jsf.page
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【中文标题】与 primefaces 集成时无法加载 jsf.page【英文标题】：can't load jsf.page when integrated with primefaces 【发布时间】：2012-05-26 14:29:36 【问题描述】：当我想实现 jsf 2.0、primefaces 3.1.1 和 springframework 3.0.2 时遇到问题，我无法在身份验证登录页面成功后加载我的 jsf 页面
netbeans 6.9.1 glassfish 服务器 3.0.1 素面 3.0.1 jsf 2.0 springframework 3.0.2
这是我的 web.xml
<?xml version="1.0" encoding="UTF-8"?>
<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">
<context-param>
<param-name>javax.faces.PROJECT_STAGE</param-name>
<param-value>Production</param-value>
</context-param>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/app-config.xml</param-value>
</context-param>
<context-param>
<param-name>javax.faces.FACELETS_LIBRARIES</param-name>
<param-value>/WEB-INF/springsecurity.taglib.xml</param-value>
</context-param>
<filter>
<filter-name>springSecurityFilterChain</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<servlet>
<servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/app-config.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<filter-mapping>
<filter-name>springSecurityFilterChain</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>faces/index.jsp</welcome-file>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
jsf 页面
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:sec="http://www.springframework.org/security/tags"
xmlns:f="http://java.sun.com/jsf/core">
<h:head>
</h:head>
<h:body>
<sec:authorize url="/admin/*">
This session will be visible to an admin only.<br/>
You are an Administrator.<br/>
</sec:authorize>
<sec:authorize url="/users/*">
This session will be visible to an Customer only.<br/>
You are an Customer.<br/>
</sec:authorize>
<p:layout style="min-width:400px;min-height:200px;" id="layout">
<p:layoutUnit position="west" resizable="true" size="100" minSize="40" maxSize="200">
Left
</p:layoutUnit>
<p:layoutUnit position="center">
<h:form>
<p:panel header="F.C. Barcelona" footer="Visca el Barca!">
<h:outputText value="FC Barcelona is one of only three clubs never to have been relegated from La Liga and is the most successful club in Spanish football along with Real Madrid,
having won twenty La Liga titles, a record twenty-five Spanish Cups, eight Spanish Super Cups, four Eva Duarte Cups and two League Cups.
They are also one of the most successful clubs in European football having won fourteen official major trophies in total,
including ten UEFA competitions. They have won three UEFA Champions League titles, a record four UEFA Cup Winners' Cups,
a record three InterCities Fairs Cups (the forerunner to the UEFA Europa League), three UEFA Super Cups and one FIFA Club World Cup.
The club is also the only European side to have played continental football in every season since its inception in 1955." />
</p:panel> </h:form>
</p:layoutUnit>
</p:layout>
<h:outputLink value="#request.contextPath/j_spring_security_logout">Logout</h:outputLink>
</h:body>
</html>
错误信息
WARNING: StandardWrapperValve[Faces Servlet]: PWC1406: Servlet.service() for servlet Faces Servlet threw exception
java.lang.NullPointerException
at org.springframework.faces.webflow.FlowViewStateManager.saveView(FlowViewStateManager.java:181)
at com.sun.faces.application.view.WriteBehindStateWriter.flushToWriter(WriteBehindStateWriter.java:225)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:418)
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
at org.springframework.faces.webflow.FlowViewHandler.renderView(FlowViewHandler.java:99)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:163)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:174)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:662)
有人给我这个问题的建议..？ 谢谢阿贡：D
【问题讨论】：
【参考方案1】：这是 Spring Webflow 2.3.0 中的 a bug，在 Spring Webflow 2.3.1 中已修复。所以显然你使用的是 Spring Webflow 2.3.0，你需要将它升级到 2.3.1。
【讨论】：
很好的答案 BalusC，在我下载并使用 spring webflow 2.3.1 进行更改后，它的工作和 primefaces 可以显示值..hehe 再次感谢，很好的答案 我在使用 spring-webflow-2.3.1 时遇到了同样的错误。这种情况下我该怎么办。我下载了带有依赖项的 spring-webflow-2.3.1。以上是关于与 primefaces 集成时无法加载 jsf.page的主要内容，如果未能解决你的问题，请参考以下文章
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