Google App Engine + JSF 2会出错
我正在使用这个链接用于jsf谷歌应用程序引擎，所以当我运行eclipse时我得到这个错误所以给你想要的解决方案链接是http://www.mkyong.com/google-app-engine/google-app-engine -jsf -2-示例/
java.lang.ClassNotFoundException: javax.faces.webapp.FacesServlet at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at com.google.appengine.tools.development.IsolatedAppClassLoader.loadClass (IsolatedAppClassLoader.java:207) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) at org.mortbay.util.Loader.loadClass(Loader.java:91) at org.mortbay.util.Loader.loadClass(Loader.java:71) at org.mortbay.jetty.servlet.Holder.doStart(Holder.java:73) at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:242) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:685) at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) at org.mortbay.jetty.Server.doStart(Server.java:224) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at com.google.appengine.tools.development.JettyContainerService.startContainer (JettyContainerService.java:197) at com.google.appengine.tools.development.AbstractContainerService.startup (AbstractContainerService.java:241) at com.google.appengine.tools.development.DevAppServerImpl.start (DevAppServerImpl.java:148) at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply (DevAppServerMain.java:310) at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48) at com.google.appengine.tools.development.DevAppServerMain. (DevAppServerMain.java:249) at com.google.appengine.tools.development.DevAppServerMain.main (DevAppServerMain.java:225) Sep 06, 2012 10:58:55 AM com.google.appengine.tools.development.ApiProxyLocalImpl log SEVERE: javax.servlet.ServletContext log: unavailable javax.servlet.UnavailableException: javax.faces.webapp.FacesServlet at org.mortbay.jetty.servlet.Holder.doStart(Holder.java:79) at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:242) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:685) at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) at org.mortbay.jetty.Server.doStart(Server.java:224) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at com.google.appengine.tools.development.JettyContainerService.startContainer (JettyContainerService.java:197) at com.google.appengine.tools.development.AbstractContainerService.startup (AbstractContainerService.java:241) at com.google.appengine.tools.development.DevAppServerImpl.start (DevAppServerImpl.java:148) at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply (DevAppServerMain.java:310) at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48) at com.google.appengine.tools.development.DevAppServerMain. (DevAppServerMain.java:249) at com.google.appengine.tools.development.DevAppServerMain.main (DevAppServerMain.java:225) Sep 06, 2012 10:58:55 AM com.google.apphosting.utils.jetty.JettyLogger warn WARNING: failed Faces Servlet: java.lang.NullPointerException Sep 06, 2012 10:58:55 AM com.google.apphosting.utils.jetty.JettyLogger warn WARNING: Failed startup of context com.google.appengine.tools.development.DevAppEngineWebAppContext@1dc94ea {/,C:\Documents and Settings\Shilendra Sharma\workspace\Shilu\war} java.lang.NullPointerException at java.lang.Class.isAssignableFrom(Native Method) at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:256) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:685) at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) at org.mortbay.jetty.Server.doStart(Server.java:224) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at com.google.appengine.tools.development.JettyContainerService.startContainer (JettyContainerService.java:197) at com.google.appengine.tools.development.AbstractContainerService.startup (AbstractContainerService.java:241) at com.google.appengine.tools.development.DevAppServerImpl.start (DevAppServerImpl.java:148) at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply (DevAppServerMain.java:310) at com.google.appengine.tools.util.Parser$ParseResult.applyArgs (Parser.java:48) at com.google.appengine.tools.development.DevAppServerMain. (DevAppServerMain.java:249) at com.google.appengine.tools.development.DevAppServerMain.main (DevAppServerMain.java:225) so any one help me for it work properly App shilendra
JSF 2正在使用GAE不支持的“javax.naming.InitialContext”。
解决这个问题：
- 您需要获取JSF源代码的副本。 复制WebConfiguration.java
- 使用“javax.naming.InitialContext”类的注释方法
- 但是等等，我修改了最新的（jsf 2.2.12），这里是： WebConfiguration.java
- 将它放在com.sun.faces.config包中。
现在，您新创建的WebConfiguration.java类将重载原始WebConfiguration.java。