继承错类

最新推荐文章于 2024-10-14 17:24:11 发布

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最新推荐文章于 2024-10-14 17:24:11 发布

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分类专栏：异常

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本文介绍了一个 Struts2 过滤器配置错误案例，在实现自定义拦截器时，因错误地继承了 AbstractInterceptor 而不是 MethodFilterInterceptor 类而导致运行时异常。详细分析了错误堆栈，指出问题所在。

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今天写struts2的过滤器时,本应该继承MethodFilterInterceptor类
却继承了AbstractInterceptor.导致报以下的错

Caught OgnlException while setting property ‘excludeMethods’ on type ‘com.interceptor.LoginInterceptor’.
ognl.NoSuchPropertyException: com.interceptor.LoginInterceptor.excludeMethods
at ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:166)
at com.opensymphony.xwork2.ognl.accessor.ObjectAccessor.setProperty(ObjectAccessor.java:27)
at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2332)
at ognl.ASTProperty.setValueBody(ASTProperty.java:127)
at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:220)
at ognl.SimpleNode.setValue(SimpleNode.java:301)
at ognl.Ognl.setValue(Ognl.java:737)
at com.opensymphony.xwork2.ognl.OgnlUtil $1.execute(OgnlUtil.java:287) at com.opensymphony.xwork2.ognl.OgnlUtil$ 1.execute(OgnlUtil.java:282)
at com.opensymphony.xwork2.ognl.OgnlUtil.compileAndExecute(OgnlUtil.java:340)
at com.opensymphony.xwork2.ognl.OgnlUtil.setValue(OgnlUtil.java:282)
at com.opensymphony.xwork2.ognl.OgnlUtil.setValue(OgnlUtil.java:278)
at com.opensymphony.xwork2.ognl.OgnlUtil.internalSetProperty(OgnlUtil.java:547)
at com.opensymphony.xwork2.ognl.OgnlUtil.setProperties(OgnlUtil.java:170)
at com.opensymphony.xwork2.ognl.OgnlUtil.setProperties(OgnlUtil.java:197)
at com.opensymphony.xwork2.ognl.OgnlUtil.setProperties(OgnlUtil.java:184)
at com.opensymphony.xwork2.ognl.OgnlReflectionProvider.setProperties(OgnlReflectionProvider.java:58)
at com.opensymphony.xwork2.factory.DefaultInterceptorFactory.buildInterceptor(DefaultInterceptorFactory.java:43)
at com.opensymphony.xwork2.ObjectFactory.buildInterceptor(ObjectFactory.java:209)
at com.opensymphony.xwork2.config.providers.InterceptorBuilder.constructInterceptorReference(InterceptorBuilder.java:70)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.lookupInterceptorReference(XmlConfigurationProvider.java:1114)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadInterceptorStack(XmlConfigurationProvider.java:932)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadInterceptorStacks(XmlConfigurationProvider.java:945)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadInterceptors(XmlConfigurationProvider.java:968)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:537)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:295)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:112)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:264)
at com.opensymphony.xwork2.config.ConfigurationManager.reloadProviders(ConfigurationManager.java:235)
at com.opensymphony.xwork2.config.ConfigurationManager.conditionalReload(ConfigurationManager.java:184)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:73)
at org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:967)
at org.apache.struts2.dispatcher.Dispatcher.cleanup(Dispatcher.java:279)
at org.apache.struts2.dispatcher.ng.PrepareOperations.cleanupDispatcher(PrepareOperations.java:184)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.destroy(StrutsPrepareAndExecuteFilter.java:108)
at org.apache.catalina.core.ApplicationFilterConfig.release(ApplicationFilterConfig.java:315)
at org.apache.catalina.core.StandardContext.filterStop(StandardContext.java:4811)
at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5618)
at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
at org.apache.catalina.core.StandardContext.reload(StandardContext.java:3947)
at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:426)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1345)
at org.apache.catalina.core.ContainerBase $ContainerBackgroundProcessor.processChildren(ContainerBase.java:1530) at org.apache.catalina.core.ContainerBase$ ContainerBackgroundProcessor.processChildren(ContainerBase.java:1540)
at org.apache.catalina.core.ContainerBase $ContainerBackgroundProcessor.processChildren(ContainerBase.java:1540) at org.apache.catalina.core.ContainerBase$ ContainerBackgroundProcessor.run(ContainerBase.java:1519)
at java.lang.Thread.run(Thread.java:744)