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最新推荐文章于 2022-12-15 23:42:09 发布

原创最新推荐文章于 2022-12-15 23:42:09 发布 · 4.3k 阅读

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#exception #class

本文记录了Struts2框架在处理特定表达式时遇到的Ognl异常问题，详细展示了异常堆栈跟踪，并分析了可能的原因是devMode设置为true所导致。

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72063 [28472268@qtp-20738936-9] WARN com.opensymphony.xwork2.ognl.OgnlValueStack - Caught an exception while evaluating expression 'topfunctiontitle' against value stack
Caught an Ognl exception while getting property topfunctiontitle - Class: ognl.OgnlRuntime
File: OgnlRuntime.java
Method: getMethodValue
Line: 935 - ognl/OgnlRuntime.java:935:-1
at com.opensymphony.xwork2.ognl.accessor.CompoundRootAccessor.getProperty(CompoundRootAccessor.java:111)
at ognl.OgnlRuntime.getProperty(OgnlRuntime.java:1643)
at ognl.ASTProperty.getValueBody(ASTProperty.java:92)
at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
at ognl.SimpleNode.getValue(SimpleNode.java:210)
at ognl.Ognl.getValue(Ognl.java:333)
at ognl.Ognl.getValue(Ognl.java:310)
at com.opensymphony.xwork2.ognl.OgnlUtil.getValue(OgnlUtil.java:196)
at com.opensymphony.xwork2.ognl.OgnlValueStack.findValue(OgnlValueStack.java:229)
at org.apache.struts2.views.freemarker.ScopesHashModel.get(ScopesHashModel.java:70)
at freemarker.core.Environment.getGlobalVariable(Environment.java:1062)
at freemarker.core.Environment.getVariable(Environment.java:1048)
at freemarker.core.Identifier._getAsTemplateModel(Identifier.java:70)
at freemarker.core.Expression.getAsTemplateModel(Expression.java:89)
at freemarker.core.BuiltIn$has_contentBI._getAsTemplateModel(BuiltIn.java:666)
at freemarker.core.BuiltIn$has_contentBI.isTrue(BuiltIn.java:678)
at freemarker.core.ConditionalBlock.accept(ConditionalBlock.java:77)
at freemarker.core.Environment.visit(Environment.java:209)
at freemarker.core.MixedContent.accept(MixedContent.java:92)
at freemarker.core.Environment.visit(Environment.java:209)
at freemarker.core.Macro$Context.runMacro(Macro.java:168)
at freemarker.core.Environment.visit(Environment.java:602)
at freemarker.core.UnifiedCall.accept(UnifiedCall.java:106)
at freemarker.core.Environment.visit(Environment.java:209)
at freemarker.core.MixedContent.accept(MixedContent.java:92)
at freemarker.core.Environment.visit(Environment.java:209)
at freemarker.core.Environment.process(Environment.java:189)
at freemarker.template.Template.process(Template.java:237)
at org.apache.struts2.views.freemarker.FreemarkerResult.doExecute(FreemarkerResult.java:187)
at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:186)
at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:361)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:265)
at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:468)
at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:395)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:387)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:864)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:520)
Caused by: ognl.OgnlException: topfunctiontitle [java.lang.NullPointerException]
at ognl.OgnlRuntime.getMethodValue(OgnlRuntime.java:935)
at ognl.ObjectPropertyAccessor.getPossibleProperty(ObjectPropertyAccessor.java:53)
at ognl.ObjectPropertyAccessor.getProperty(ObjectPropertyAccessor.java:121)
at com.opensymphony.xwork2.ognl.accessor.ObjectAccessor.getProperty(ObjectAccessor.java:17)
at ognl.OgnlRuntime.getProperty(OgnlRuntime.java:1643)
at com.opensymphony.xwork2.ognl.accessor.CompoundRootAccessor.getProperty(CompoundRootAccessor.java:106)
... 51 more
72063 [28472268@qtp-20738936-9] WARN com.opensymphony.xwork2.ognl.OgnlValueStack - NOTE: Previous warning message was issued due to devMode set to true.
72063 [28472268@qtp-20738936-9] WARN com.opensymphony.xwork2.ognl.OgnlValueStack - Caught an exception while evaluating expression 'topfunctiontitle' against value stack
Caught an Ognl exception while getting property topfunctiontitle - Class: ognl.OgnlRuntime
File: OgnlRuntime.java
Method: getMethodValue
Line: 935 - ognl/OgnlRuntime.java:935:-1
at com.opensymphony.xwork2.ognl.accessor.CompoundRootAccessor.getProperty(CompoundRootAccessor.java:111)
at ognl.OgnlRuntime.getProperty(OgnlRuntime.java:1643)
at ognl.ASTProperty.getValueBody(ASTProperty.java:92)
at ognl.SimpleNode.evaluateGetValueBody(SimpleNode.java:170)
at ognl.SimpleNode.getValue(SimpleNode.java:210)
at ognl.Ognl.getValue(Ognl.java:333)
at ognl.Ognl.getValue(Ognl.java:310)
at com.opensymphony.xwork2.ognl.OgnlUtil.getValue(OgnlUtil.java:196)
at com.opensymphony.xwork2.ognl.OgnlValueStack.findValue(OgnlValueStack.java:229)
at org.apache.struts2.dispatcher.StrutsRequestWrapper.getAttribute(StrutsRequestWrapper.java:82)
at org.apache.struts2.views.freemarker.ScopesHashModel.get(ScopesHashModel.java:85)
at freemarker.core.Environment.getGlobalVariable(Environment.java:1062)
at freemarker.core.Environment.getVariable(Environment.java:1048)
at freemarker.core.Identifier._getAsTemplateModel(Identifier.java:70)
at freemarker.core.Expression.getAsTemplateModel(Expression.java:89)
at freemarker.core.BuiltIn$has_contentBI._getAsTemplateModel(BuiltIn.java:666)
at freemarker.core.BuiltIn$has_contentBI.isTrue(BuiltIn.java:678)
at freemarker.core.ConditionalBlock.accept(ConditionalBlock.java:77)
at freemarker.core.Environment.visit(Environment.java:209)
at freemarker.core.MixedContent.accept(MixedContent.java:92)
at freemarker.core.Environment.visit(Environment.java:209)
at freemarker.core.Macro$Context.runMacro(Macro.java:168)
at freemarker.core.Environment.visit(Environment.java:602)
at freemarker.core.UnifiedCall.accept(UnifiedCall.java:106)
at freemarker.core.Environment.visit(Environment.java:209)
at freemarker.core.MixedContent.accept(MixedContent.java:92)
at freemarker.core.Environment.visit(Environment.java:209)
at freemarker.core.Environment.process(Environment.java:189)
at freemarker.template.Template.process(Template.java:237)
at org.apache.struts2.views.freemarker.FreemarkerResult.doExecute(FreemarkerResult.java:187)
at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:186)
at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:361)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:265)
at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:468)
at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:395)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1148)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:387)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:864)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:520)
Caused by: ognl.OgnlException: topfunctiontitle [java.lang.NullPointerException]
at ognl.OgnlRuntime.getMethodValue(OgnlRuntime.java:935)
at ognl.ObjectPropertyAccessor.getPossibleProperty(ObjectPropertyAccessor.java:53)
at ognl.ObjectPropertyAccessor.getProperty(ObjectPropertyAccessor.java:121)
at com.opensymphony.xwork2.ognl.accessor.ObjectAccessor.getProperty(ObjectAccessor.java:17)
at ognl.OgnlRuntime.getProperty(OgnlRuntime.java:1643)
at com.opensymphony.xwork2.ognl.accessor.CompoundRootAccessor.getProperty(CompoundRootAccessor.java:106)
... 52 more