问题描述
没有为动作名称 index 映射的动作。如何捕获异常，因为我想定义我的处理。
com.opensymphony.xwork2 .DefaultActionProxy.prepare（DefaultActionProxy.java:189）
org.apache.struts2.impl.StrutsActionProxy.prepare（StrutsActionProxy.java:61）
org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy（StrutsActionProxyFactory .java：39）
com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy（DefaultActionProxyFactory.java:58）
org.apache.struts2.dispatcher.Dispatcher.serviceAction（Dispatcher.java:475）
org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction（ExecuteOperations.java:77）
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter（StrutsPrepareAndExecuteFilter.java:91）
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:243）
org.apache.catalina.core.ApplicationFilterChain.doFi lter（ApplicationFilterChain.java:210）
com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent（SiteMeshFilter.java:129）
com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter（SiteMeshFilter.java： 77）
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:243）
org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:210）
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareFilter.doFilter（StrutsPrepareFilter.java:82）
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:243）
org。 apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:210）
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal（CharacterEncodingFilter.java:88）
org.springframework.web.filter。 OncePerRequestFilter.doFilter（OncePerRequestFilter.java:76）
org.apache.catalina.core.Applicati onFilterChain.internalDoFilter（ApplicationFilterChain.java:243）
org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:210）
com.zhanxiao.sys.PermissionFilter.doFilter（PermissionFilter.java： 61）
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:243）
org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:210）
（）标签： authentator.AuthenticatorBase.invoke（AuthenticatorBase.java:472）
org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:168）
org.apache.catalina.valves.ErrorReportValve.invoke（ ErrorReportValve.java:98）
org.apache.catalina.core.StandardEngineValve.invoke（StandardEngineValve.java:118）
$ org.apache.catalina.connector.CoyoteAdapter.service >
解决方案引发异常，因为与请求一起使用的url未正确映射到操作配置。为了摆脱异常，你应该正确地将URL映射到动作，或者使用默认的动作引用，如果没有为给定的url找到动作，将被调用。
您也可以使用通配符映射来映射一堆URL，甚至可以使用正则表达式模式匹配器来查找您的操作，或者如果它无法覆盖默认行为动作映射器通过提供您的自定义实现。
要处理您的操作代码中的异常，您可以使用。它将帮助您通过全局异常映射处理任何类型的异常，并定义实际处理异常的全局结果。有关详细解释的链接和示例，请参阅如何使具有异常处理的默认包。
有一个选项来扩展拦截器并覆盖文档中也描述的异常处理机制。
There is no action mapped for action name index. How to catch the exception, because I want to define my handling.
com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:189)
org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:61)
org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39)
com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:475)
org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129)
com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareFilter.doFilter(StrutsPrepareFilter.java:82)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
com.zhanxiao.sys.PermissionFilter.doFilter(PermissionFilter.java:61)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
org.apache.coyote.http11.AbstractHttp11Processor.proces
解决方案 Exception is thrown because the url used with the request is not properly mapped to the action configuration. To get rid of the exception you should properly map the url to the action or use default action reference that will be called if no action found for the given url.
You may also use wildcard mapping to map a bunch of urls even with regex pattern matcher that will find your action or if it doesn't help to override the default behavior of the action mapper by supplying your custom implementation.
To handle exceptions form your action code you can use the exception interceptor on the stack of your action. It will help you what kind of exceptions you want to handle via global exception mapping and define the global results that will actually handle the exception. See the link that explains more in detail and examples how to make the default package with exception handling.
There's an option to extend the interceptor and override the exception handling mechanism that is described also in the docs.
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