科学研究

Expression channel.parent is undefined on line 29, column 72 in WEB-INF/t/cms/xl/default/channel/新闻栏目.html.

The problematic instruction:

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==> ${channel.parent.id} [on line 29, column 70 in WEB-INF/t/cms/xl/default/channel/新闻栏目.html]

in user-directive cms_channel_list [on line 29, column 41 in WEB-INF/t/cms/xl/default/channel/新闻栏目.html]

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Java backtrace for programmers:

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freemarker.core.InvalidReferenceException: Expression channel.parent is undefined on line 29, column 72 in WEB-INF/t/cms/xl/default/channel/新闻栏目.html.

at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:124)

at freemarker.core.TemplateObject.invalidTypeException(TemplateObject.java:134)

at freemarker.core.Dot._getAsTemplateModel(Dot.java:78)

at freemarker.core.Expression.getAsTemplateModel(Expression.java:89)

at freemarker.core.Expression.getStringValue(Expression.java:93)

at freemarker.core.DollarVariable.accept(DollarVariable.java:76)

at freemarker.core.Environment.visit(Environment.java:210)

at freemarker.core.MixedContent.accept(MixedContent.java:92)

at freemarker.core.Environment.visit(Environment.java:210)

at freemarker.core.Environment.renderElementToString(Environment.java:1569)

at freemarker.core.StringLiteral.getStringValue(StringLiteral.java:101)

at freemarker.core.StringLiteral._getAsTemplateModel(StringLiteral.java:86)

at freemarker.core.Expression.getAsTemplateModel(Expression.java:89)

at freemarker.core.UnifiedCall.accept(UnifiedCall.java:119)

at freemarker.core.Environment.visit(Environment.java:210)

at freemarker.core.MixedContent.accept(MixedContent.java:92)

at freemarker.core.Environment.visit(Environment.java:210)

at freemarker.core.Environment.process(Environment.java:190)

at freemarker.template.Template.process(Template.java:237)

at com.blueSeaCms.cms.staticpage.StaticPageDaoImpl.channelStatic(StaticPageDaoImpl.java:165)

at com.blueSeaCms.cms.staticpage.StaticPageSvcImpl.channel(StaticPageSvcImpl.java:95)

at sun.reflect.GeneratedMethodAccessor1061.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)

at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)

at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)

at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)

at com.sun.proxy.$Proxy51.channel(Unknown Source)

at com.blueSeaCms.cms.staticpage.StaticAct.staticChannel(StaticAct.java:167)

at com.blueSeaCms.cms.staticpage.StaticAct.selfSubmit(StaticAct.java:138)

at sun.reflect.GeneratedMethodAccessor1166.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)

at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:426)

at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414)

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)

at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at com.blueSeaCms.common.web.ResponseFilter.doFilter(ResponseFilter.java:89)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at com.blueSeaCms.common.web.ProcessTimeFilter.doFilter(ProcessTimeFilter.java:35)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at edu.yale.its.tp.cas.client.filter.CASFilter.doFilter(CASFilter.java:141)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1115)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)

at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

at java.lang.Thread.run(Thread.java:662)