Struts2-jQuery TreeTag显示FreeMarker错误，没有树可见

我目前正在试图获得struts2-jquery treeTag运行的基本示例。Struts2-jQuery TreeTag显示FreeMarker错误，没有树可见

我已经把这个在JSP：

<sj:head jqueryui="true" customBasepath="css" jquerytheme="jquery_tree_ui" debug="true" /> 

.... 

<s:url id="echo" value="http://www.google.com"/> 

<sjt:tree 
    id="treeDynamicAjax" 
    jstreetheme="apple" 
    rootNode="theNodes" 
    nodeHref="%{echo}"     
    nodeTitleProperty="title" 
    nodeIdProperty="id" 
    nodeHrefParamName="echo" 

/>

Java的操作做到这一点：

private List<TreeNode> theNodes = new ArrayList<TreeNode>(); 
private String id = ""; 

public String listUsergroup() { 

    TreeNode nodeA = new TreeNode(); 
    nodeA.setId("A" + id); 
    nodeA.setTitle("Node A" + id); 
    nodeA.setState(TreeNode.NODE_STATE_OPEN); 

    TreeNode nodeB = new TreeNode(); 
    nodeB.setId("B" + id); 
    nodeB.setState(TreeNode.NODE_STATE_LEAF); 
    nodeB.setTitle("Node B" + id); 

    TreeNode nodeC = new TreeNode(); 
    nodeC.setId("C" + id); 
    nodeC.setState(TreeNode.NODE_STATE_LEAF); 
    nodeC.setTitle("Node C" + id); 

    Collection<TreeNode> children = new ArrayList<TreeNode>(); 
    children.add(nodeB); 
    children.add(nodeC); 
    nodeA.setChildren(children); 
    theNodes.add(nodeA); 

    return SUCCESS; 
} 

public List<TreeNode> getTheNodes() { 
    return theNodes; 
} 

public void setTheNodes(List<TreeNode> theNodes) { 
    this.theNodes = theNodes; 
} 

public String getId() { 
    return id; 
} 
public void setId(String id) { 
    this.id = id; 
}

通过激活支柱调试选项，我看到theNodes拥有所有的树。

问题是我得到一个黄色屏幕FreeMarker模板错误，谈论像模板/ jquery/treenode-include.ftl或模板/ jquery/tree.ftl等ftl文件。

这是我第一次用jquery-treeTag插件和官方文档，我没有找到任何合适的例子（我宁愿不使用JSON或Convention插件）。

如果我将rootNode="theNodes"更改为rootNode="XXX"之类的任何其他值，我不会例外，但不会显示任何内容。

我很确定我正在使用<sjt:tree>标记不正确，但我找不到任何有用的文档为新手。

预先感谢您

更新1：

这是FreeMarker的错误：

FreeMarker template error! 

Expression stack.findValue(parameters.nodeTitleProperty) is undefined on line 52, column 35 in template/jquery/treenode-include.ftl. 
The problematic instruction: ---------- ==> ${stack.findValue(parameters.nodeTitleProperty)} 
[on line 52, column 33 in template/jquery/treenode-include.ftl] in include "/${parameters.templateDir}/jquery/treenode-include.ftl" 
[on line 30, column 5 in template/jquery/tree.ftl] ---------- Java backtrace for programmers: 

---------- freemarker.core.InvalidReferenceException: Expression stack.findValue(parameters.nodeTitleProperty) is undefined on line 52, column 35 in template/jquery/treenode-include.ftl. 
at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:125) 
at freemarker.core.Expression.getStringValue(Expression.java:118) 
at freemarker.core.Expression.getStringValue(Expression.java:93) 
at freemarker.core.DollarVariable.accept(DollarVariable.java:76) 
at freemarker.core.Environment.visit(Environment.java:221) 
at freemarker.core.MixedContent.accept(MixedContent.java:92) 
at freemarker.core.Environment.visit(Environment.java:221) 
at freemarker.core.IfBlock.accept(IfBlock.java:82) 
at freemarker.core.Environment.visit(Environment.java:221) 
at freemarker.core.IfBlock.accept(IfBlock.java:82) 
at freemarker.core.Environment.visit(Environment.java:221) 
at freemarker.core.MixedContent.accept(MixedContent.java:92) 
at freemarker.core.Environment.visit(Environment.java:221) 
at freemarker.core.Environment.include(Environment.java:1508) 
at freemarker.core.Include.accept(Include.java:169) 
at freemarker.core.Environment.visit(Environment.java:221) 
at freemarker.core.MixedContent.accept(MixedContent.java:92) 
at freemarker.core.Environment.visit(Environment.java:221) 
at freemarker.core.ConditionalBlock.accept(ConditionalBlock.java:79) 
at freemarker.core.Environment.visit(Environment.java:221) 
at freemarker.core.MixedContent.accept(MixedContent.java:92) 
at freemarker.core.Environment.visit(Environment.java:221) 
at freemarker.core.Environment.process(Environment.java:199) 
at freemarker.template.Template.process(Template.java:259) 
at org.apache.struts2.components.template.FreemarkerTemplateEngine.renderTemplate(FreemarkerTemplateEngine.java:157) 
at org.apache.struts2.components.UIBean.mergeTemplate(UIBean.java:565) 
at org.apache.struts2.components.ClosingUIBean.start(ClosingUIBean.java:59) 
at org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(ComponentTagSupport.java:53) 
at org.apache.jsp.jsp.administration.listUsergroup_jsp._jspx_meth_sjt_005ftree_005f0(listUsergroup_jsp.java:504) 
at org.apache.jsp.jsp.administration.listUsergroup_jsp._jspService(listUsergroup_jsp.java:182) 
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374) 
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:337) 
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) 
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436) 
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374) 
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302) 
at org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:164) 
at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:186) 
at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:374) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:278) 
at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176) 
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:50) 
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:211) 
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:211) 
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:190) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:90) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:243) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171) 
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:176) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:192) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:187) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:249) 
at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54) 
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:511) 
at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:432) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:322) 
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116) 
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) 
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) 
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) 
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) 
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:146) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) 
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) 
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) 
at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) 
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:182) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) 
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) 
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) 
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:184) 
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:155) 
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) 
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259) 
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:127) 
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:298) 
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859) 
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) 
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) 
at java.lang.Thread.run(Thread.java:662)

来源

2012-10-04 Edu Castrillon

什么黄色屏幕 - FreeMarker模板错误在说什么？ –

@AleksandrM，我已更新错误的问题。谢谢 –

首先你需要有一个根节点不是根节点的列表，所以将这个
private List<TreeNode> theNodes = new ArrayList<TreeNode>();
改为
private TreeNode theNode = new TreeNode();。

然后你就可以在JSP

<sjt:tree 
    id="treeDynamicAjax" 
    jstreetheme="apple" 
    rootNode="theNode" 
    nodeHref="%{echo}"     
    nodeTitleProperty="title" 
    nodeIdProperty="id" 
    nodeHrefParamName="echo" 
    childCollectionProperty="children" 
/>

使用此代码，你不需要在你的行动id财产。

来源

2012-10-04 21:16:18

谢谢@AleksandrM！只有一个问题：你是否学过这种方式，而不是使用谷歌代码的文档？我只是找不到任何好的文档！ –

我只看了struts2-jquery-plugin google code wiki中提供的示例。 –

表达式stack.findValue（parameters.nodeIdProperty）在模板/ jquery/treenode-include.ftl的第21行第27列未定义。有问题的指令： ---------- ==> $ {stack.findValue（parameters.nodeIdProperty）} [位于模板/ jquery/treenode-include.ftl中第21行，第25列] 包含“/${parameters.templateDir}/jquery/treenode-include.ftl”[在模板/ jquery/tree.ftl中的第30行第5列] – amka

Struts2-jQuery TreeTag显示FreeMarker错误，没有树可见

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