这是我的上下文：
- 我使用 Netbeans 作为 IDE
- 我的测试 web 应用程序中的richfaces 4。
- 玻璃鱼 3.1.2
这是我的详细问题：
- 我有一个菜单栏，希望能够在其他几个页面中重复使用。
- 我相信这就是 facelet-taglibs 的用途，所以我想创建一个。
这是我所做的：
- 创建了包含我的菜单的文件：menu.xhtml
<?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core" xmlns:rich="http://richfaces.org/rich" xmlns:ui="http://java.sun.com/jsf/facelets"> <h:body> <ui:composition id="PAC-MENU"> <rich:toolbar width="50%"> <rich:dropDownMenu> <f:facet name="label"> <h:panelGroup> <h:graphicImage value="./images/icons/create_doc.gif" styleClass="pic"/> <h:outputText value="Declaration"/> </h:panelGroup> </f:facet> <rich:menuItem label="Upload" icon="${facesContext.externalContext.requestContextPath}/images/icons/create_doc.gif" action="/pages/uploadDeclarationBatch"/> </rich:dropDownMenu> <rich:toolbarGroup location="right"> <rich:dropDownMenu label="Profile" direction="bottomLeft" jointPoint="bottomRight"> <rich:menuItem label="Update" action="/pages/updateProfile"/> <rich:menuItem label="Change password" action="/pages/changePassword"/> </rich:dropDownMenu> </rich:toolbarGroup> </rich:toolbar> </ui:composition> </h:body> </html>
创建了 taglib 文件：pac-taglibs.xhtml
<?xml version='1.0'?> <!DOCTYPE facelet-taglib PUBLIC "-//Sun Microsystems, Inc.//DTD Facelet Taglib 1.0//EN" "http://java.sun.com/dtd/facelet-taglib_1_0.dtd"> <facelet-taglib version="2.0"> <namespace>http://www.myproduct.com/jsf</namespace> <tag> <tag-name>pac-menu</tag-name> <source>/resources/tags/menu.xhtml</source> </tag> </facelet-taglib>修改了 web.xml y 添加这个：web.xml
<context-param> <param-name>javax.faces.FACELETS_LIBRARIES</param-name> <param-value>/resources/taglibs/pac-taglibs.xhtml</param-value> </context-param>在我的页面中引用了我的 taglib 并使用这样的标签：home.xhtml
<?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core" xmlns:a4j="http://richfaces.org/a4j" xmlns:rich="http://richfaces.org/rich" xmlns:a3c="http://www.myproduct.com/jsf"> <h:head> <link rel="stylesheet" type="text/css" ref="${facesContext.externalContext.requestContextPath}/resources/css/styles.css"/> <title>My Product V1.0 Beta</title> </h:head> <h:body styleClass="backGroundimage"> <center> <h:form> <h:outputText id="outtxt" styleClass="h1" value="Welcome ${pAC_USER.name}"/><BR/><BR/> <a3c:pac-menu/> </h:form> </center> </h:body> </html>这是目录结构：
WebContent | ---> META-INF | ---> WEB-INF | ---> resources | | | ---> css | | | ---> taglibs | | | | | ---> pac-taglibs.xhtml | | | ---> tags | | | | | ---> menu.xhtml | ---> index.xhtml
每次我尝试访问我的页面时，我都会收到以下错误消息：
java.io.FileNotFoundException at org.apache.naming.resources.DirContextURLConnection.getInputStream(DirContextURLConnection.java:403) at com.sun.faces.facelets.impl.DefaultFaceletCache._getLastModified(DefaultFaceletCache.java:172) at com.sun.faces.facelets.impl.DefaultFaceletCache.access$000(DefaultFaceletCache.java:62) at com.sun.faces.facelets.impl.DefaultFaceletCache$1.newInstance(DefaultFaceletCache.java:82) at com.sun.faces.facelets.impl.DefaultFaceletCache$1.newInstance(DefaultFaceletCache.java:78) at com.sun.faces.util.ExpiringConcurrentCache$1.call(ExpiringConcurrentCache.java:99) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at com.sun.faces.util.ExpiringConcurrentCache.get(ExpiringConcurrentCache.java:114) at com.sun.faces.facelets.impl.DefaultFaceletCache.getFacelet(DefaultFaceletCache.java:121) at com.sun.faces.facelets.impl.DefaultFaceletCache.getFacelet(DefaultFaceletCache.java:62) at com.sun.faces.facelets.impl.DefaultFaceletFactory.getFacelet(DefaultFaceletFactory.java:256) at com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:366) at com.sun.faces.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java:326) at com.sun.faces.facelets.tag.UserTagHandler.apply(UserTagHandler.java:142) at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:98) at javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:137) at org.richfaces.view.facelets.html.BehaviorsAddingComponentHandlerWrapper.applyNextHandler(BehaviorsAddingComponentHandlerWrapper.java:53) at com.sun.faces.facelets.tag.jsf.ComponentTagHandlerDelegateImpl.apply(ComponentTagHandlerDelegateImpl.java:184) at javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:120) at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:98) at javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:137) at org.richfaces.view.facelets.html.BehaviorsAddingComponentHandlerWrapper.applyNextHandler(BehaviorsAddingComponentHandlerWrapper.java:53) at com.sun.faces.facelets.tag.jsf.ComponentTagHandlerDelegateImpl.apply(ComponentTagHandlerDelegateImpl.java:184) at javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:120) at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:98) at com.sun.faces.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:93) at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:98) at com.sun.faces.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:86) at com.sun.faces.facelets.impl.DefaultFacelet.apply(DefaultFacelet.java:152) at com.sun.faces.application.view.FaceletViewHandlingStrategy.buildView(FaceletViewHandlingStrategy.java:774) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:100) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594) at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1542) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161) at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231) at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317) at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195) at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849) at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746) at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045) at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228) at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137) at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104) at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90) at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79) at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54) at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59) at com.sun.grizzly.ContextTask.run(ContextTask.java:71) at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532) at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) at java.lang.Thread.run(Thread.java:662)
这是如何引起的，我该如何解决？