六、ERROR - Could not create and/or set value back on to object
2012-10-21 15:04:12 org.apache.catalina.core.ApplicationContext log信息: Initializing Spring root WebApplicationContext2012-10-21 15:04:21 com.opensymphony.xwork2.util.logging.jdk.JdkLogger info信息: Parsing configuration file [struts-default.xml]2012-10-21 15:04:22 com.opensymphony.xwork2.util.logging.jdk.JdkLogger info信息: Parsing configuration file [struts-plugin.xml]2012-10-21 15:04:22 com.opensymphony.xwork2.util.logging.jdk.JdkLogger info信息: Parsing configuration file [struts.xml]2012-10-21 15:04:23 org.apache.coyote.http11.Http11Protocol start信息: Starting Coyote HTTP/1.1 on http-80802012-10-21 15:04:23 org.apache.jk.common.ChannelSocket init信息: JK: ajp13 listening on /0.0.0.0:80092012-10-21 15:04:23 org.apache.jk.server.JkMain start信息: Jk running ID=0 time=0/78 config=null2012-10-21 15:04:23 org.apache.catalina.startup.Catalina start信息: Server startup in 55085 ms调用了getUserjsp，获取一个user对象ERROR - Could not create and/or set value back on to objectMethod "setUserjsp" failed for object xxx.action.LoginAction@1fa4961 - Class: ognl.OgnlRuntimeFile: OgnlRuntime.javaMethod: callAppropriateMethodLine: 1265 - ognl/OgnlRuntime.java:1265:-1at com.opensymphony.xwork2.ognl.OgnlReflectionProvider.setValue(OgnlReflectionProvider.java:117)at com.opensymphony.xwork2.conversion.impl.InstantiatingNullHandler.nullPropertyValue(InstantiatingNullHandler.java:128)at com.opensymphony.xwork2.ognl.OgnlNullHandlerWrapper.nullPropertyValue(OgnlNullHandlerWrapper.java:21)at ognl.ASTProperty.getValueBody(ASTProperty.java:118)at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212)at ognl.SimpleNode.getValue(SimpleNode.java:258)at ognl.ASTChain.setValueBody(ASTChain.java:222)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.setValue(OgnlUtil.java:198)at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:161)at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:149)at com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters(ParametersInterceptor.java:276)at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:187)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:179)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:235)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:130)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:165)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:179)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:488)at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)at java.lang.Thread.run(Thread.java:619)Caused by: ognl.MethodFailedException: Method "setUserjsp" failed for object xxx.action.LoginAction@1fa4961 [java.lang.NoSuchMethodException: xxx.action.LoginAction$$EnhancerByCGLIB$$c7a7e784.setUserjsp($Proxy13)]at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1265)at ognl.OgnlRuntime.setMethodValue(OgnlRuntime.java:1454)at ognl.ObjectPropertyAccessor.setPossibleProperty(ObjectPropertyAccessor.java:85)at ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:162)at com.opensymphony.xwork2.ognl.accessor.ObjectAccessor.setProperty(ObjectAccessor.java:28)at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2225)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 ognl.Ognl.setValue(Ognl.java:783)at com.opensymphony.xwork2.ognl.OgnlReflectionProvider.setValue(OgnlReflectionProvider.java:115)... 62 moreCaused by: java.lang.NoSuchMethodException: xxx.action.LoginAction$$EnhancerByCGLIB$$c7a7e784.setUserjsp($Proxy13)at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1206)... 73 moreWARN - Error setting expression 'userjsp.email' with value '[Ljava.lang.String;@979869'ognl.OgnlException: target is null for setProperty(null, "email", [Ljava.lang.String;@979869)at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2219)at ognl.ASTProperty.setValueBody(ASTProperty.java:127)at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:220)at ognl.SimpleNode.setValue(SimpleNode.java:301)at ognl.ASTChain.setValueBody(ASTChain.java:227)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.setValue(OgnlUtil.java:198)at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:161)at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:149)at com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters(ParametersInterceptor.java:276)at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:187)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:179)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:235)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:130)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:165)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:179)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:488)at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)at java.lang.Thread.run(Thread.java:619)调用了getUserjsp，获取一个user对象ERROR - Could not create and/or set value back on to objectMethod "setUserjsp" failed for object xxx.action.LoginAction@1fa4961 - Class: ognl.OgnlRuntimeFile: OgnlRuntime.javaMethod: callAppropriateMethodLine: 1265 - ognl/OgnlRuntime.java:1265:-1at com.opensymphony.xwork2.ognl.OgnlReflectionProvider.setValue(OgnlReflectionProvider.java:117)at com.opensymphony.xwork2.conversion.impl.InstantiatingNullHandler.nullPropertyValue(InstantiatingNullHandler.java:128)at com.opensymphony.xwork2.ognl.OgnlNullHandlerWrapper.nullPropertyValue(OgnlNullHandlerWrapper.java:21)at ognl.ASTProperty.getValueBody(ASTProperty.java:118)at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:212)at ognl.SimpleNode.getValue(SimpleNode.java:258)at ognl.ASTChain.setValueBody(ASTChain.java:222)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.setValue(OgnlUtil.java:198)at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:161)at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:149)at com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters(ParametersInterceptor.java:276)at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:187)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:179)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:235)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:130)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:165)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:179)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:488)at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)at java.lang.Thread.run(Thread.java:619)Caused by: ognl.MethodFailedException: Method "setUserjsp" failed for object xxx.action.LoginAction@1fa4961 [java.lang.NoSuchMethodException: xxx.action.LoginAction$$EnhancerByCGLIB$$c7a7e784.setUserjsp($Proxy13)]at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1265)at ognl.OgnlRuntime.setMethodValue(OgnlRuntime.java:1454)at ognl.ObjectPropertyAccessor.setPossibleProperty(ObjectPropertyAccessor.java:85)at ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:162)at com.opensymphony.xwork2.ognl.accessor.ObjectAccessor.setProperty(ObjectAccessor.java:28)at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2225)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 ognl.Ognl.setValue(Ognl.java:783)at com.opensymphony.xwork2.ognl.OgnlReflectionProvider.setValue(OgnlReflectionProvider.java:115)... 62 moreCaused by: java.lang.NoSuchMethodException: xxx.action.LoginAction$$EnhancerByCGLIB$$c7a7e784.setUserjsp($Proxy13)at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1206)... 73 moreWARN - Error setting expression 'userjsp.password' with value '[Ljava.lang.String;@5b3588'ognl.OgnlException: target is null for setProperty(null, "password", [Ljava.lang.String;@5b3588)at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2219)at ognl.ASTProperty.setValueBody(ASTProperty.java:127)at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:220)at ognl.SimpleNode.setValue(SimpleNode.java:301)at ognl.ASTChain.setValueBody(ASTChain.java:227)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.setValue(OgnlUtil.java:198)at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:161)at com.opensymphony.xwork2.ognl.OgnlValueStack.setValue(OgnlValueStack.java:149)at com.opensymphony.xwork2.interceptor.ParametersInterceptor.setParameters(ParametersInterceptor.java:276)at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:187)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:179)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:235)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:130)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138)at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:165)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:179)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176)at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:488)at org.apache.struts2.dispatcher.ng.ExecuteOperations.execu：teAction(ExecuteOperations.java:77)at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)at java.lang.Thread.run(Thread.java:619)执行execute方法原因：在表单提交的时候，action并没有创建表单对应的实例（只在action中声明：private User userjsp）。因为在写表单对应的类时，写了一个带有参数的构造方法，而在action中只是定义了这个类，没有实现 解决：在action中，new出表单对应的类（private User userjsp = new User();）
参考网址：
http://www.linuxso.com/architecture/10862.html
