使用primefaces时发生Liferay错误：使用标记“时出现NullPointerException”&书信电报；liferay ui：期刊文章>&引用；

简要介绍我的环境：我使用Liferay 6.2，使用Maven和Primefaces 4.0构建portlet。之前我使用的是带有普通JSP/AUI的Liferay 6.1，我对上述标记没有任何问题

一旦我将

标记包含到以前工作过的XHTML页面中，它就会立即遇到一个异常，看起来非常奇怪，让我非常害怕

Resource handler=[com.liferay.faces.bridge.application.ResourceHandlerOuterImpl@3caf23f] was unable to create a resource for resourceName=[journal-article.xhtml] libraryName=[liferay-ui] contentType=[null]

java.lang.NullPointerException: Argument Error: Parameter url is null
at com.sun.faces.util.Util.notNull(Util.java:314)
at com.sun.faces.facelets.impl.DefaultFaceletCache.isFaceletCached(DefaultFaceletCache.java:126)
at com.sun.faces.facelets.impl.DefaultFaceletFactory.needsToBeRefreshed(DefaultFaceletFactory.java:278)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.getComponentMetadata(FaceletViewHandlingStrategy.java:237)
at com.sun.faces.application.ApplicationImpl.createComponent(ApplicationImpl.java:937)
at javax.faces.application.ApplicationWrapper.createComponent(ApplicationWrapper.java:605)
at com.sun.faces.facelets.tag.jsf.CompositeComponentTagHandler.createComponent(CompositeComponentTagHandler.java:161)
at com.sun.faces.facelets.tag.jsf.ComponentTagHandlerDelegateImpl.createComponent(ComponentTagHandlerDelegateImpl.java:486)
at com.sun.faces.facelets.tag.jsf.ComponentTagHandlerDelegateImpl.apply(ComponentTagHandlerDelegateImpl.java:169)
at javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:120)
at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:95)
at com.sun.faces.facelets.tag.ui.DefineHandler.applyDefinition(DefineHandler.java:106)
at com.sun.faces.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:178)
at com.sun.faces.facelets.impl.DefaultFaceletContext$TemplateManager.apply(DefaultFaceletContext.java:395)
at com.sun.faces.facelets.impl.DefaultFaceletContext.includeDefinition(DefaultFaceletContext.java:366)
at com.sun.faces.facelets.tag.ui.InsertHandler.apply(InsertHandler.java:111)
at javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:137)
at com.sun.faces.facelets.tag.jsf.ComponentTagHandlerDelegateImpl.apply(ComponentTagHandlerDelegateImpl.java:187)
at javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:120)
at javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:137)
at com.sun.faces.facelets.tag.jsf.ComponentTagHandlerDelegateImpl.apply(ComponentTagHandlerDelegateImpl.java:187)
at javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:120)
at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:95)
at javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:137)
at com.sun.faces.facelets.tag.jsf.ComponentTagHandlerDelegateImpl.apply(ComponentTagHandlerDelegateImpl.java:187)
at javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:120)
at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:95)
at javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:137)
at com.sun.faces.facelets.tag.jsf.ComponentTagHandlerDelegateImpl.apply(ComponentTagHandlerDelegateImpl.java:187)
at javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:120)
at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:95)
at javax.faces.view.facelets.DelegatingMetaTagHandler.applyNextHandler(DelegatingMetaTagHandler.java:137)
at com.sun.faces.facelets.tag.jsf.ComponentTagHandlerDelegateImpl.apply(ComponentTagHandlerDelegateImpl.java:187)
at javax.faces.view.facelets.DelegatingMetaTagHandler.apply(DelegatingMetaTagHandler.java:120)
at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:95)
at com.sun.faces.facelets.tag.jsf.core.ViewHandler.apply(ViewHandler.java:188)
at com.sun.faces.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:93)
at com.sun.faces.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:87)
at com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:320)
at com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:379)
at com.sun.faces.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:358)
at com.sun.faces.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java:199)
at com.sun.faces.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:155)
at com.sun.faces.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:93)
at com.sun.faces.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:87)
at com.sun.faces.facelets.impl.DefaultFacelet.apply(DefaultFacelet.java:164)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.buildView(FaceletViewHandlingStrategy.java:914)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:99)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
at com.liferay.faces.bridge.BridgePhaseRenderImpl.execute(BridgePhaseRenderImpl.java:227)
at com.liferay.faces.bridge.BridgePhaseRenderImpl.execute(BridgePhaseRenderImpl.java:85)
at com.liferay.faces.bridge.BridgeImpl.doFacesRequest(BridgeImpl.java:112)
at javax.portlet.faces.GenericFacesPortlet.doView(GenericFacesPortlet.java:255)
at javax.portlet.GenericPortlet.doDispatch(GenericPortlet.java:328)
at javax.portlet.faces.GenericFacesPortlet.doDispatch(GenericFacesPortlet.java:204)
at javax.portlet.GenericPortlet.render(GenericPortlet.java:233)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:103)
at com.liferay.portlet.ScriptDataPortletFilter.doFilter(ScriptDataPortletFilter.java:55)
at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:100)
at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:64)
at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:112)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
....

关于我迄今为止尝试过的事情的一些注释： 我查看了关于堆栈溢出的其他文章，这些文章听起来很相似（），我把Web.xml和POM.xml弄得一团糟，因为互联网上的许多文章都建议JSF配置不完整/损坏。 在这个过程中，我在网上发现了一些更可怕的文章，指出faces环境的库或过滤器配置已损坏。但这一切都改变了我的现实

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除了从primefaces切换到其他东西之外，我还能尝试些什么呢？

AFAIK您不能在PrimeFacesportlet的xhtml视图文件中使用liferay的自定义标记

作为一种解决方法，您可以在视图范围的JSFbean的init方法中使用liferay api获取web内容（期刊文章），并使用内容设置一些bean变量。然后在xhtml视图中可以显示该bean变量

希望这对你有帮助