我试图通过ExceptionHandler处理未捕获的异常.遵循JSF2完整参考中的代码,我已经为我的处理程序创建了类.但是当我部署我的应用程序时,它会抛出下一个stackTrace:
SEVERE: Critical error during deployment: com.sun.faces.config.ConfigurationException: Factory 'javax.faces.context.ExceptionHandlerFactory' was not configured properly. at com.sun.faces.config.processor.FactoryConfigProcessor.verifyFactoriesExist(FactoryConfigProcessor.java:305) at com.sun.faces.config.processor.FactoryConfigProcessor.process(FactoryConfigProcessor.java:219) at com.sun.faces.config.ConfigManager.initialize(ConfigManager.java:360) at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:225) at org.apache.catalina.core.StandardContext.contextListenerStart(StandardContext.java:4750) at com.sun.enterprise.web.WebModule.contextListenerStart(WebModule.java:550) at org.apache.catalina.core.StandardContext.start(StandardContext.java:5366) at com.sun.enterprise.web.WebModule.start(WebModule.java:498) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:917) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:901) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:733) at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:2019) at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1669) at com.sun.enterprise.web.WebApplication.start(WebApplication.java:109) at org.glassfish.internal.data.EngineRef.start(EngineRef.java:130) at org.glassfish.internal.data.ModuleInfo.start(ModuleInfo.java:269) at org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:301) at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:461) at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240) at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:389) at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:348) at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:363) at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1085) at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:95) at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1291) at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1259) at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:461) at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:212) at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179) at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117) at com.sun.enterprise.v3.services.impl.ContainerMapper$Hk2DispatcherCallable.call(ContainerMapper.java:354) at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195) at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860) at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757) at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056) at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229) at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137) at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104) at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90) at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79) at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54) at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59) at com.sun.grizzly.ContextTask.run(ContextTask.java:71) at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532) at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) at java.lang.Thread.run(Thread.java:662) Caused by: javax.faces.FacesException: exception.ExceptionHandlerFactory at javax.faces.FactoryFinder.getImplGivenPreviousImpl(FactoryFinder.java:643) at javax.faces.FactoryFinder.getImplementationInstance(FactoryFinder.java:509) at javax.faces.FactoryFinder.access$400(FactoryFinder.java:139) at javax.faces.FactoryFinder$FactoryManager.getFactory(FactoryFinder.java:993) at javax.faces.FactoryFinder.getFactory(FactoryFinder.java:343) at com.sun.faces.config.processor.FactoryConfigProcessor.verifyFactoriesExist(FactoryConfigProcessor.java:303) ... 45 more Caused by: java.lang.InstantiationException: exception.ExceptionHandlerFactory at java.lang.Class.newInstance0(Class.java:342) at java.lang.Class.newInstance(Class.java:310) at javax.faces.FactoryFinder.getImplGivenPreviousImpl(FactoryFinder.java:641) ... 50 more
这是我的faces-config.xml:
exception.ExceptionHandlerFactory
ExceptionHandlerFactory.java
public class ExceptionHandlerFactory extends javax.faces.context.ExceptionHandlerFactory { private transient Logger logger = Logger.getLogger(this.getClass().getName()); private ExceptionHandlerFactory parent; public ExceptionHandlerFactory(ExceptionHandlerFactory parent) { this.parent = parent; } @Override public ExceptionHandler getExceptionHandler() { ExceptionHandler result = parent.getExceptionHandler(); result = new CustomExceptionHandler(result); return result; }
}
CustomExceptionHandler.java
public class CustomExceptionHandler extends ExceptionHandlerWrapper { private ExceptionHandler parent; public CustomExceptionHandler(ExceptionHandler parent) { this.parent = parent; } @Override public ExceptionHandler getWrapped() { return this.parent; } @Override public void handle() throws FacesException { for (Iteratori = getUnhandledExceptionQueuedEvents().iterator(); i.hasNext();) { ExceptionQueuedEvent event = i.next(); ExceptionQueuedEventContext context = (ExceptionQueuedEventContext) event.getSource(); Throwable t = context.getException(); if (t instanceof ViewExpiredException) { ViewExpiredException vee = (ViewExpiredException) t; FacesContext fc = FacesContext.getCurrentInstance(); NavigationHandler nav = fc.getApplication().getNavigationHandler(); try { fc.getExternalContext(). getFlash().put("currentViewId", vee.getViewId()); nav.handleNavigation(fc, null, "/login?faces-redirect=true"); fc.renderResponse(); } finally { i.remove(); } } } getWrapped().handle(); } }
服务器是Glassfish 3.1.2.2.
当我得到ViewExpiredException时,我需要一些逻辑.我错过了什么?提前致谢 !!!!
编辑:
正如@BalusC指出的那样,我改变了我的工厂类名,所以这是我的CustomExceptionHandlerFactory.java:
public class CustomExceptionHandlerFactory extends ExceptionHandlerFactory { private ExceptionHandlerFactory parent; public CustomExceptionHandlerFactory(ExceptionHandlerFactory parent) { this.parent = parent; } @Override public ExceptionHandler getExceptionHandler() { ExceptionHandler result = parent.getExceptionHandler(); result = new CustomExceptionHandler(result); return result; } }
和我的faces-config.xml:
com.exception.CustomExceptionHandlerFactory
我希望这对任何有这个愚蠢问题的人都有帮助.
您的错误在于,您出于某些不明原因重复使用与现有API类相同的类名,并将它们混淆在代码中.
该parent
构造函数的参数(和局部变量)必须是类型的javax.faces.context.ExceptionHandlerFactory
,不是你的exception.ExceptionHandlerFactory
.这种错误的类型导致JSF无法调用构造函数,因此 - 自我解释 - InstantiationException(无法实例化).
更好地将您的班级重命名为独特的类似CustomExceptionHandlerFactory
.