[#list tag_list as c1] [#if c1.parent.id??] if判断最好写在list里面，你这两个channel_list标签容易区分不清楚

回复第9楼

还是报错


<br/>channel.parent [in template "WEB-INF/t/cms/www/default/include/nav.html" at line 44, column 22] ---- Tip: It's the step after the last dot that caused this error, not those before it. ---- Tip: If the failing expression is known to be legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use [#if myOptionalVar??]when-present[#else]when-missing[/#if]. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)?? ---- ---- FTL stack trace ("~" means nesting-related): - Failed at: #if channel.parent.id?? [in template "WEB-INF/t/cms/www/default/include/nav.html" at line 44, column 17] - Reached through: @cms_channel_list parentId=c.id [in template "WEB-INF/t/cms/www/default/include/nav.html" at line 41, column 13] - Reached through: @cms_channel_list [in template "WEB-INF/t/cms/www/default/include/nav.html" at line 38, column 7] - Reached through: #include "../include/nav.html" [in template "WEB-INF/t/cms/www/default/channel/news-unsub.html" at line 10, column 1] ---- Java stack trace (for programmers): ---- freemarker.core.InvalidReferenceException: [... Exception message was already printed; see it above ...] at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:134) at freemarker.core.UnexpectedTypeException.newDesciptionBuilder(UnexpectedTypeException.java:80) at freemarker.core.UnexpectedTypeException.(UnexpectedTypeException.java:43) at freemarker.core.NonHashException.(NonHashException.java:49) at freemarker.core.Dot._eval(Dot.java:48) at freemarker.core.Expression.eval(Expression.java:81) at freemarker.core.ExistsExpression._eval(ExistsExpression.java:49) at freemarker.core.Expression.eval(Expression.java:81) at freemarker.core.Expression.evalToBoolean(Expression.java:145) at freemarker.core.Expression.evalToBoolean(Expression.java:131) at freemarker.core.IfBlock.accept(IfBlock.java:49) at freemarker.core.Environment.visit(Environment.java:326) at freemarker.core.Environment.visit(Environment.java:368) at freemarker.core.Environment$NestedElementTemplateDirectiveBody.render(Environment.java:2727) at com.jeecms.cms.action.directive.ChannelListDirective.execute(ChannelListDirective.java:77) at freemarker.core.Environment.visit(Environment.java:426) at freemarker.core.UnifiedCall.accept(UnifiedCall.java:101) at freemarker.core.Environment.visit(Environment.java:326) at freemarker.core.Environment.visit(Environment.java:368) at freemarker.core.IteratorBlock$IterationContext.executeNestedContent(IteratorBlock.java:263) at freemarker.core.IteratorBlock$IterationContext.accept(IteratorBlock.java:200) at freemarker.core.Environment.visitIteratorBlock(Environment.java:595) at freemarker.core.IteratorBlock.acceptWithResult(IteratorBlock.java:81) at freemarker.core.IteratorBlock.accept(IteratorBlock.java:67) at freemarker.core.Environment.visit(Environment.java:362) at freemarker.core.Environment$NestedElementTemplateDirectiveBody.render(Environment.java:2727) at com.jeecms.cms.action.directive.ChannelListDirective.execute(ChannelListDirective.java:77) at freemarker.core.Environment.visit(Environment.java:426) at freemarker.core.UnifiedCall.accept(UnifiedCall.java:101) at freemarker.core.Environment.visit(Environment.java:326) at freemarker.core.Environment.visit(Environment.java:332) at freemarker.core.Environment.include(Environment.java:2505) at freemarker.core.Include.accept(Include.java:171) at freemarker.core.Environment.visit(Environment.java:326) at freemarker.core.Environment.visit(Environment.java:332) at freemarker.core.Environment.process(Environment.java:305) at freemarker.template.Template.process(Template.java:384) at com.jeecms.common.web.springmvc.SimpleFreeMarkerView.renderMergedTemplateModel(SimpleFreeMarkerView.java:114) at org.springframework.web.servlet.view.AbstractTemplateView.renderMergedOutputModel(AbstractTemplateView.java:167) at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303) at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1257) at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1037) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:980) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at com.jeecms.common.web.XssFilter.doFilter(XssFilter.java:43) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449) at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365) at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383) at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:151) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at com.jeecms.common.web.ProcessTimeFilter.doFilter(ProcessTimeFilter.java:35) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745)  <br/>

[#list tag_list as c]
          [#if c_index < 10]
            [@cms_channel_list parentId=c.id]   
              [#if tag_list?size>0]
                <li
                [#if c.parent.id??]
                    [#if c.parent.id==c.id]
                      class="dropdown active" 
                    [#else] 
                      class="dropdown" 
                    [/#if]
                [#else]
                    [#if c.channel.id==c.id]
                      class="dropdown active" 
                    [#else] 
                      class="dropdown" 
                    [/#if]
                [/#if]>

是这样吧？

回复第13楼

还是报错 

不行，你外面取的是一级栏目，你这c.parent.id也会报错

回复第15楼

那应该怎么写啊，可以帮我改一下吗？

 [@cms_channel_list parentId=c.id]    
              [#list tag_list as c1] 
                
 [#if c1.id==channel.id] 
                      class="dropdown active"  
                    [#else]  
                      class="dropdown"  
                    [/#if] 
因为里面的那个是取一级栏目的子栏目，所以不需要判断有没有父栏目id，因为一定会有

回复第17楼

谢了，我加高亮的对象是一级导航，不是子导航，因此在子导航循环里面加没有用，我还是用js实现吧，多谢了

另外我想到了列表侧左侧菜单显示的问题，不是可以判断有无父级导航吗我试了下还是不行

[#if channel.parent.id??]
                ${channel.parent.name!}
              [#else]
                ${channel.name!}
              [/#if]


这个判断父级导航为空的代码是不是不好用啊？