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我需要使用JSF 2的WebSphere 7.0.0.13下運行的應用程序，我都遵循這樣的：的Websphere 7 JSF 2
http://www.manorrock.com/online/wiki/app/page/edit.html
***它說：
Even though Websphere 7 does not formally support JSF 2.0 you can get it to work in a degraded mode. Follow the steps below to get it to work on your version of Websphere 7.
Upgrade to at least version 7.0.0.13
Ship the Mojarra JAR files in your WEB-INF/lib directory
Set the WAR classloader to PARENT_LAST
Set the EAR classloader to PARENT_LAST and APPLICATION
Note the degraded mode means you are NOT going to be able to use @Resource or any JPA annotations. If you think you need support for it contact your IBM representative.
Note it will process @PostConstruct and @PreDestroy.***
我這樣做，但我得到這個錯誤，在日誌中：
[8/30/13 22:51:32:702 CDT] 0000000c webapp E com.ibm.ws.webcontainer.webapp.WebApp notifyServletContextCreated SRVE0283E: Exception caught while initializing context: {0}
java.lang.LinkageError: loading constraint violation: loader "com/ibm/ws/classloader/[email protected]" previously initiated loading for a different type with name "javax/servlet/ServletContext" defined by loader "org/eclipse/osgi/internal/baseadaptor/[email protected]"
at com.sun.faces.config.WebConfiguration.getInstance(WebConfiguration.java:184)
at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:163)
at com.ibm.ws.webcontainer.webapp.WebApp.notifyServletContextCreated(WebApp.java:1681)
at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinish(WebApp.java:374)
at com.ibm.ws.webcontainer.webapp.WebAppImpl.initialize(WebAppImpl.java:299)
at com.ibm.ws.webcontainer.webapp.WebGroupImpl.addWebApplication(WebGroupImpl.java:100
而且誤差en我的網頁：
Error 404: javax.servlet.UnavailableException: SRVE0201E: Servlet [javax.faces.webapp.FacesServlet]: not a servlet class
這是我的web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" 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">
<display-name>testJSF2</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<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>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
</web-app>
我通過accesed：
..../testJSF2/index.faces
如果我通過輸入：
..../testJSF2/index.jsp
在頁面得到這樣的：
HTTP Error Code: 500
Error Message:
JSPG0049E: /index.jsp failed to compile :
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/temp/wasccNode01/server4/testJSF2EAR/testJSF2.war/_index.java : 48 : The method getJspApplicationContext(ServletContext) is undefined for the type JspFactory
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/temp/wasccNode01/server4/testJSF2EAR/testJSF2.war/_index.java : 100 : The method handlePageException(Exception) in the type PageContext is not applicable for the arguments (Throwable)
JSPG0091E: An error occurred at line: 20 in the file: /index.jsp
JSPG0093E: Generated servlet error from file: /index.jsp
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/temp/wasccNode01/server4/testJSF2EAR/testJSF2.war/_index.java : 119 : The method getELContext() is undefined for the type PageContext
JSPG0091E: An error occurred at line: 21 in the file: /index.jsp
JSPG0093E: Generated servlet error from file: /index.jsp
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/temp/wasccNode01/server4/testJSF2EAR/testJSF2.war/_index.java : 144 : The method getELContext() is undefined for the type PageContext
根本原因：
com.ibm.ws.jsp.JspCoreException: JSPG0049E: /index.jsp failed to compile :
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/temp/wasccNode01/server4/testJSF2EAR/testJSF2.war/_index.java : 48 : The method getJspApplicationContext(ServletContext) is undefined for the type JspFactory
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/temp/wasccNode01/server4/testJSF2EAR/testJSF2.war/_index.java : 100 : The method handlePageException(Exception) in the type PageContext is not applicable for the arguments (Throwable)
JSPG0091E: An error occurred at line: 20 in the file: /index.jsp
JSPG0093E: Generated servlet error from file: /index.jsp
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/temp/wasccNode01/server4/testJSF2EAR/testJSF2.war/_index.java : 119 : The method getELContext() is undefined for the type PageContext
JSPG0091E: An error occurred at line: 21 in the file: /index.jsp
JSPG0093E: Generated servlet error from file: /index.jsp
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/temp/wasccNode01/server4/testJSF2EAR/testJSF2.war/_index.java : 144 : The method getELContext() is undefined for the type PageContext
at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrapper.translateJsp(AbstractJSPExtensionServletWrapper.java:574)
at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrapper._checkForTranslation(AbstractJSPExtensionServletWrapper.java:441)
at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrapper.checkForTranslation(AbstractJSPExtensionServletWrapper.java:299)
at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrapper.handleRequest(AbstractJSPExtensionServletWrapper.java:149)
at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3826)
at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:276)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:931)
感謝您幫助。