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我正在尝试将我们的 Web 应用程序从 myfaces 1.1 升级到 1.2。我希望这比直接迁移到最新的 2.x 版本更容易。但是，当我尝试启动应用程序时，我遇到了这样的错误：

SEVERE: StandardWrapper.Throwable
java.lang.IllegalStateException: No Factories configured for this Application. This happens if the faces-initialization does not work at all - make sure that you properly include all configuration settings necessary for a basic faces application and that all the necessary libs are included. Also check the logging output of your web application and your container for any exceptions!
If you did that and find nothing, the mistake might be due to the fact that you use some special web-containers which do not support registering context-listeners via TLD files and a context listener is not setup in your web.xml.
A typical config looks like this;
<listener>
  <listener-class>org.apache.myfaces.webapp.StartupServletContextListener</listener-class>
</listener>

at javax.faces.FactoryFinder.getFactory(FactoryFinder.java:106)
at javax.faces.webapp.FacesServlet.init(FacesServlet.java:137)
at evo.ui.jsf.EvoFacesServlet.init(EvoFacesServlet.java:56)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1173)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:993)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4420)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4733)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at org.apache.catalina.core.StandardService.start(StandardService.java:525)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:592)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)

在应用程序日志中可以观察到这样的异常：

2012-09-26 15:44:00|main|ERROR|org.apache.myfaces.webapp.AbstractFacesInitializer|An error occured while initializing MyFaces: null
java.lang.NullPointerException
    at org.apache.myfaces.webapp.Jsp21FacesInitializer.initContainerIntegration(Jsp21FacesInitializer.java:61)
    at org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces(AbstractFacesInitializer.java:96)
    at org.apache.myfaces.webapp.StartupServletContextListener.contextInitialized(StartupServletContextListener.java:89)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4205)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4704)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
    at org.apache.catalina.core.StandardService.start(StandardService.java:525)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:592)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)

web.xml 看起来像这样：

<?xml version="1.0" encoding="UTF-8"?>

<web-app version="2.5" 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_2_5.xsd">

<description>My app</description>
<display-name>My app</display-name>

<welcome-file-list>
    <welcome-file>index.html</welcome-file>
</welcome-file-list>

<context-param>
    <param-name>javax.faces.DEFAULT_SUFFIX</param-name>
    <param-value>.xhtml</param-value>
</context-param>

<context-param>
    <param-name>facelets.REFRESH_PERIOD</param-name>
    <param-value>2</param-value>
</context-param>

<context-param>
    <param-name>facelets.DEVELOPMENT</param-name>
    <param-value>false</param-value>
</context-param>

<context-param>
    <param-name>facelets.RESOURCE_RESOLVER</param-name>
    <param-value>evo.ui.jsf.EvoResourceResolver</param-value>
</context-param>

<context-param>
    <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
    <param-value>server</param-value>
</context-param>    

<!-- AJAX4JSF -->
<context-param>
    <param-name>org.ajax4jsf.VIEW_HANDLERS</param-name>
    <param-value>com.sun.facelets.FaceletViewHandler</param-value>
</context-param>

<context-param>
    <param-name>org.ajax4jsf.SKIN</param-name>
    <param-value>DEFAULT</param-value>
</context-param>

<context-param>
    <param-name>evo.ajaxlink.level</param-name>
    <param-value>2</param-value>
</context-param>

<filter>
    <display-name>Ajax4jsf Filter</display-name>
    <filter-name>ajax4jsf</filter-name>
    <filter-class>org.ajax4jsf.Filter</filter-class>
    <init-param>
        <param-name>forceparser</param-name>
        <param-value>false</param-value>
    </init-param>
</filter>

<filter-mapping>
    <filter-name>ajax4jsf</filter-name>
    <servlet-name>Faces Servlet</servlet-name>
    <dispatcher>REQUEST</dispatcher>
    <dispatcher>FORWARD</dispatcher>
    <dispatcher>INCLUDE</dispatcher>
</filter-mapping>

<filter>
    <filter-name>UploadMultipartFilter</filter-name>
    <filter-class>
        evo.ui.jsf.filters.UploadMultipartFilter
    </filter-class>
</filter>

<filter>
    <filter-name>OpenSessionInViewFilter</filter-name>
    <filter-class>
        org.springframework.orm.hibernate3.support.OpenSessionInViewFilter
    </filter-class>
    <init-param>
        <param-name>singleSession</param-name>
        <param-value>true</param-value>
    </init-param>
    <init-param>
        <param-name>sessionFactoryBeanName</param-name>
        <param-value>configDatabaseSessionFactory</param-value>
    </init-param>
</filter>

<filter-mapping>
    <filter-name>OpenSessionInViewFilter</filter-name>
    <url-pattern>*.jsf</url-pattern>
</filter-mapping>

<filter>
    <filter-name>MyFacesExtensionsFilter</filter-name>
    <filter-class>
        org.apache.myfaces.webapp.filter.ExtensionsFilter
    </filter-class>
    <init-param>
        <param-name>maxFileSize</param-name>
        <param-value>20m</param-value>
    </init-param>
</filter>

<filter-mapping>
    <filter-name>MyFacesExtensionsFilter</filter-name>
    <servlet-name>Faces Servlet</servlet-name>
</filter-mapping>

<filter-mapping>
    <filter-name>MyFacesExtensionsFilter</filter-name>
    <url-pattern>/faces/myFacesExtensionResource/*</url-pattern>
</filter-mapping>

<filter-mapping>
    <filter-name>UploadMultipartFilter</filter-name>
    <servlet-name>Faces Servlet</servlet-name>
</filter-mapping>

<filter>
    <description>Force encoding to get correct results of sorting
    Global Task List with fields containing non-ASCII characters.
    </description>
    <filter-name>EncodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
        <param-name>encoding</param-name>
        <param-value>UTF-8</param-value>            
    </init-param>
    <init-param>
        <param-name>forceEncoding</param-name>
        <param-value>true</param-value>
    </init-param>
</filter>

<filter-mapping>
    <filter-name>EncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

<servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>evo.ui.jsf.EvoFacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>*.jsf</url-pattern>
</servlet-mapping>

<servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>/faces/*</url-pattern>
</servlet-mapping>

<listener>
    <listener-class>
        org.apache.myfaces.webapp.StartupServletContextListener
    </listener-class>
</listener>

<listener>
    <listener-class>
        org.springframework.web.context.ContextLoaderListener
    </listener-class>
</listener>

<listener>
    <listener-class>
        org.springframework.web.context.request.RequestContextListener
    </listener-class>
</listener>


<!-- XFIRE Webservices -->
<servlet>
    <servlet-name>xfire</servlet-name>
    <servlet-class>
        org.springframework.web.servlet.DispatcherServlet
    </servlet-class>
</servlet>

<servlet-mapping>
    <servlet-name>xfire</servlet-name>
    <url-pattern>/services/*</url-pattern>
</servlet-mapping>

<session-config>
  <session-timeout>60</session-timeout> 
</session-config>

<web-app> 标签已从“2.4”更新为 version="2.5"。我已经尝试用原始的 javax.faces.webapp.FacesServlet 替换我们的委托 servlet (EvoFacesServlet)，但没有成功。

servlet 容器是 Tomcat 6。

我还应该怎么做才能使其正常工作？

4

1 回答 1

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从部署中删除与容器相关的 jar 有助于：servlet-api.jar、el-api.jar、jsp-api.jar。不确定其中哪一个是问题的根源。

于 2012-10-02T15:14:14.857 回答