Liferay ClassNotFoundException：DLFileEntryImpl

时间：2013-01-18 16:56:06

标签： java exception liferay portlet portal

在我的6.1.0门户实例上使用6.1.0 SDK-Portlet，它使用了ServiceBuilder和DL-Api 这一行：

DynamicQuery query = DynamicQueryFactoryUtil.forClass(DLFileEntry.class)

产生此错误：

16:46:46,319 ERROR [DynamicQueryFactoryImpl:83] Unable find model 
com.liferay.portlet.documentlibrary.model.impl.DLFileEntryImpl
java.lang.ClassNotFoundException: com.liferay.portlet.documentlibrary.model.impl.DLFileEntryImpl
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1688)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1533)
    at com.liferay.portal.dao.orm.hibernate.DynamicQueryFactoryImpl.getImplClass(DynamicQueryFactoryImpl.java:78)
    at com.liferay.portal.dao.orm.hibernate.DynamicQueryFactoryImpl.getImplClass(DynamicQueryFactoryImpl.java:59)
    at com.liferay.portal.dao.orm.hibernate.DynamicQueryFactoryImpl.forClass(DynamicQueryFactoryImpl.java:33)
    at com.liferay.portal.kernel.dao.orm.DynamicQueryFactoryUtil.forClass(DynamicQueryFactoryUtil.java:23)
    at de.acocon.liferay.service.service.bean.DocLibBean.findByExtraSettings(DocLibBean.java:403)
    at de.acocon.liferay.service.service.bean.DocLibBean.findByIdeaId(DocLibBean.java:395)
    at de.acocon.liferay.service.service.bean.DocLibBean.fillUploadedFileListByIdea(DocLibBean.java:417)
    at de.acocon.liferay.service.service.bean.IdeaController.init(IdeaController.java:149)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.sun.faces.vendor.WebContainerInjectionProvider.invokeAnnotatedMethod(WebContainerInjectionProvider.java:117)
    at com.sun.faces.vendor.WebContainerInjectionProvider.invokePostConstruct(WebContainerInjectionProvider.java:99)
    at com.sun.faces.mgbean.BeanBuilder.invokePostConstruct(BeanBuilder.java:223)
    at com.sun.faces.mgbean.BeanBuilder.build(BeanBuilder.java:105)
    at com.sun.faces.mgbean.BeanManager.createAndPush(BeanManager.java:409)
    at com.sun.faces.mgbean.BeanManager.create(BeanManager.java:269)
    at com.sun.faces.el.ManagedBeanELResolver.resolveBean(ManagedBeanELResolver.java:244)
    at com.sun.faces.el.ManagedBeanELResolver.getValue(ManagedBeanELResolver.java:116)
    at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
    at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
    at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44)
    at org.jboss.el.parser.AstValue.getValue(AstValue.java:63)
    at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
    at com.sun.faces.facelets.el.ELText$ELTextVariable.writeText(ELText.java:224)
    at com.sun.faces.facelets.compiler.TextInstruction.write(TextInstruction.java:85)
    at com.sun.faces.facelets.compiler.UIInstructions.encodeBegin(UIInstructions.java:82)
    at com.sun.faces.facelets.compiler.UILeaf.encodeAll(UILeaf.java:183)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1759)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1759)
    at org.icefaces.impl.context.DOMPartialViewContext.processPartial(DOMPartialViewContext.java:153)
    at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:183)
    at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:183)
    at javax.faces.component.UIViewRoot.encodeChildren(UIViewRoot.java:981)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1756)
    at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:390)
    at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
    at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:288)
    at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
    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.lifecycle.LifecycleWrapper.render(LifecycleWrapper.java:45)
    at com.liferay.faces.bridge.BridgePhaseResourceImpl.execute(BridgePhaseResourceImpl.java:115)
    at com.liferay.faces.bridge.BridgeImpl.doFacesRequest(BridgeImpl.java:115)
    at javax.portlet.faces.GenericFacesPortlet.serveResource(GenericFacesPortlet.java:178)
    at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:118)
    at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:71)
    at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:93)
    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.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:70)
    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.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
    at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:634)
    at com.liferay.portlet.InvokerPortletImpl.invokeResource(InvokerPortletImpl.java:746)
    at com.liferay.portlet.InvokerPortletImpl.serveResource(InvokerPortletImpl.java:503)
    at com.liferay.portal.action.LayoutAction.processPortletRequest(LayoutAction.java:941)
    at com.liferay.portal.action.LayoutAction.processLayout(LayoutAction.java:664)
    at com.liferay.portal.action.LayoutAction.execute(LayoutAction.java:244)
    at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
    at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
    at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:174)
    at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
    at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
    at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:533)
    at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:510)
    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.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:113)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:113)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:113)
    at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
    at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:201)
    at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
    at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
    at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:240)
    at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:70)
    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.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:471)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:402)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:329)
    at com.liferay.portal.servlet.FriendlyURLServlet.service(FriendlyURLServlet.java:135)
    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.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:113)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:113)
    at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
    at com.liferay.portal.servlet.filters.gzip.GZipFilter.processFilter(GZipFilter.java:123)
    at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
    at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
    at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:201)
    at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
    at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
    at com.liferay.portal.servlet.filters.i18n.I18nFilter.processFilter(I18nFilter.java:241)
    at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
    at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
    at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:240)
    at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
    at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
    at com.liferay.portal.servlet.filters.sso.ntlm.NtlmPostFilter.processFilter(NtlmPostFilter.java:83)
    at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
    at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
    at com.liferay.portal.sharepoint.SharepointFilter.processFilter(SharepointFilter.java:80)
    at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
    at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:121)
    at com.liferay.portal.servlet.filters.virtualhost.VirtualHostFilter.processFilter(VirtualHostFilter.java:208)
    at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:48)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:184)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:92)
    at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:738)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDoFilter(InvokerFilterChain.java:203)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:105)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:164)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:92)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:164)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:92)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.processDirectCallFilter(InvokerFilterChain.java:184)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:92)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:70)
    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:928)
    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:539)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:300)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:680)

我搜索了几个小时的原因，但我没找到它。 我也尝试将portal-impl.jar添加到我的lib /文件夹中，但这没有帮助，也不好;）

请说我应该使用新版本，因为我无法更改它 - ＆gt;客户为王

感谢您的帮助！

3 个答案:

答案 0 :(得分：10)

这似乎是一个classLoader问题，在liferay中有不同的类加载器，如（粗略解释）：

  1. 插件类加载器：加载插件的类，即来自'/ my-portlet / WEB-INF / lib /'
  2. Portal类加载器：从portal-impl.jar
    3. 加载门户类
  3. Global Class Loader：加载服务器类，即../tomcat-7.0.27/lib/ext/
    4. 中的类

    因此，有不同的方法可以将DynamicQuery的类从一个classLoader加载到另一个classLoader中。

    以下是根据实现类的位置使用DynamicQuery的方法：

    1. 如果Implementation类在您的自定义portlet中，那么：不要使用特殊的类加载器 - 它应该是开箱即用的。

    2. 如果Implementation类是门户网站的一部分（即来自portal-impl.jar，例如User，Role或Group，或者像DLFileEntry那样}）然后使用以下内容：

      Classloader loader = PortalClassLoaderUtil.getClassLoader();
DynamicQuery query = DynamicQueryFactoryUtil.forClass(DLFileEntry.class, loader);

    3. 如果实现类位于另一个portlet中，则使用以下命令：

      ClassLoader classLoader = (ClassLoader) PortletBeanLocatorUtil.locate(ClpSerializer.SERVLET_CONTEXT_NAME,"portletClassLoader");
DynamicQuery query = DynamicQueryFactoryUtil.forClass(DLFileEntry.class, classLoader);

      4. 所以回答你的问题：第二种方法适合你。

      从Liferay forum post

      复制的信息

答案 1 :(得分：0)

请尝试以下代码：

DynamicQuery query = DynamicQueryFactoryUtil.forClass(DLFileEntry.class, DLFileEntry.class.getClassLoader());

对我而言，它有效。

答案 2 :(得分：0)

在我的情况下，我们使用自定义表。 每当我尝试从EntityServiceImpl类中获取数据时，我都会遇到相同的错误。 实体是我的桌子的名称。 在这里，我们揭露了我们的生活服务。 使用代码解决问题

ClassLoader classLoader = (ClassLoader) PortletBeanLocatorUtil.locate(ClpSerializer.getServletContextName(),"portletClassLoader");
DynamicQuery query = DynamicQueryFactoryUtil.forClass(Entity.class, classLoader);

但是使用ClpSerializer.getServletContextName（）而不是ClpSerializer.SERVLET_CONTEXT_NAME。 如kgiannakakis所述。

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