JSF1.2+Facelets1.1.13遇到的问题

来源：互联网发布：理想中的程序员形象编辑：程序博客网时间：2024/06/04 17:51

严重: Exception sending context initialized event to listener instance of class com.sun.faces.config.ConfigureListener

java.lang.LinkageError: loader constraint violation: when resolving interface method "javax.servlet.jsp.JspApplicationContext.getExpressionFactory()Ljavax/el/ExpressionFactory;" the class loader (instance of org/apache/catalina/loader/WebappClassLoader) of the current class, com/sun/faces/config/ConfigureListener, and the class loader (instance of org/apache/catalina/loader/StandardClassLoader) for resolved class, javax/servlet/jsp/JspApplicationContext, have different Class objects for the type javax/el/ExpressionFactory used in the signature

at com.sun.faces.config.ConfigureListener.registerELResolverAndListenerWithJsp(ConfigureListener.java:1892)

at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:546)

at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3830)

at org.apache.catalina.core.StandardContext.start(StandardContext.java:4337)

at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)

at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)

at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)

at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)

at org.apache.catalina.core.StandardService.start(StandardService.java:516)

at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)

at org.apache.catalina.startup.Catalina.start(Catalina.java:566)

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:597)

at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)

at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)

2008-3-19 10:05:17 com.sun.faces.config.ConfigureListener contextInitialized

运行环境：Tomcat6.0.14+JDK6.0

解决方法：移除lib中的el-api.jar，tomcat6默认支持el api, 移除xerces.jar

注：若删除以上jar包仍出现该问题，请检查tomcat发布目录，使用WTP的话发布目录在“工作空间/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/”