Question

我想在我的项目中使用一些HTML5标签，所以我想将我的JSF版本更新为支持HTML5标签的2.2版本。目前我正在使用Eclipse版本的JSF库Eclipse downloads itself：Juno Service Release 2。

我阅读了很多关于如何执行更新的不同说明，例如this。

我完成的步骤： 我下载了jsf-impl-2.2.0-m05.jar和jsf-api-2.2.0-m05.jar，并将其移至我项目的WEB-INF/lib。

然后我去了Properties / Project Facets / Java Server Faces并点击了User Libraries，然后我添加了一个名为“JSF 2.2”的“New”，我添加了我之前下载到lib的两个jar 。一旦我添加了这些，我就会回到用户库屏幕，但我无法点击“应用”，因为它告诉我：

Required class javax.faces.FactoryFinder does not exist in selected libraries.

我正在使用此faces-config.xml：https://stackoverflow.com/a/16131589/989919

不知怎的，我搞砸了，现在我只是看到了：

HTTP Status 404
description The requested resource is not available.

如果我尝试访问我的index.xhtml。

当我使用Eclipse下载的2.0版本时，Eclipse控制台中有错误消息。

Jun 23, 2013 9:52:54 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.39
Jun 23, 2013 9:52:54 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Error configuring application listener of class org.apache.myfaces.webapp.StartupServletContextListener
java.lang.ClassNotFoundException: org.apache.myfaces.webapp.StartupServletContextListener
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1713)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1558)
    at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:527)
    at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:509)
    at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:137)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4823)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5381)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
    at java.lang.Thread.run(Thread.java:680)
Jun 23, 2013 9:52:54 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Skipped installing application listeners due to previous error(s)
Jun 23, 2013 9:52:54 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart

和

Jun 23, 2013 9:52:55 PM org.apache.myfaces.config.FacesConfigurator startLib
INFO: Starting up MyFaces-package : myfaces-api in version : 2.0.2 from path : file:/Users/mediocre/Documents/Developement/Eclipse/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/WebEng_07/WEB-INF/lib/myfaces-api-2.0.2.jar
Jun 23, 2013 9:52:55 PM org.apache.myfaces.config.FacesConfigurator startLib
INFO: Starting up MyFaces-package : myfaces-impl in version : 2.0.2 from path : file:/Users/mediocre/Documents/Developement/Eclipse/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/WebEng_07/WEB-INF/lib/myfaces-impl-2.0.2.jar
Jun 23, 2013 9:52:55 PM org.apache.myfaces.config.FacesConfigurator startLib
INFO: MyFaces-package : tomahawk not found.
Jun 23, 2013 9:52:55 PM org.apache.myfaces.config.FacesConfigurator startLib
INFO: MyFaces-package : tomahawk12 not found.
Jun 23, 2013 9:52:55 PM org.apache.myfaces.config.FacesConfigurator startLib

谢谢！

Answer 1

您的罐子是否在构建路径中？检查eclipse，右键单击当前项目并转到properties-＆gt; java build path-＆gt; libraries。

Answer 2

可能在java build path-＆gt; order and export选项卡上移动你的库。以maven项目为例，您需要提升maven依赖关系或向下移动JSF Librairies

在Eclipse Juno中将JSF 2.0更新为JSF 2.2

2 个答案: