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Home.xhtml ページで次のコードを実行すると、次の例外が発生します。パネルの内容を呼び出そうとしましid = itemsたが、成功しませんでした。itemsコンパイラは識別子を持つコンポーネントを見つけることができないと言っています。

1) Home.xhtml の一部

<h:form>
    <p:commandButton type="submit" value="Speak Out" action="#{statusBean.save}" ajax="true" styleClass="buttonstyle" update="items"/>                          
</h:form>


<p:panel id="items">    
    //content       
</p:panel>

2)例外

Mar 12, 2013 1:38:04 AM com.sun.faces.application.view.FaceletViewHandlingStrategy handleRenderException
SEVERE: Error Rendering View[/Home.xhtml]
javax.faces.FacesException: Cannot find component with identifier "items" in view.
    at org.primefaces.util.ComponentUtils.findClientIds(ComponentUtils.java:249)
    at org.primefaces.renderkit.CoreRenderer.buildAjaxRequest(CoreRenderer.java:222)
    at org.primefaces.component.commandbutton.CommandButtonRenderer.encodeMarkup(CommandButtonRenderer.java:81)
    at org.primefaces.component.commandbutton.CommandButtonRenderer.encodeEnd(CommandButtonRenderer.java:53)
    at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:879)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1650)
    at javax.faces.render.Renderer.encodeChildren(Renderer.java:164)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:849)
    at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:300)
    at com.sun.faces.renderkit.html_basic.GridRenderer.renderRow(GridRenderer.java:181)
    at com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:125)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:849)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1643)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1646)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1646)
    at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:389)
    at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:127)
    at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:117)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
    at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:135)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:309)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79)
    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:225)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    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:1001)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)

Mar 12, 2013 1:38:04 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path [/FreeBird_v.6] threw exception [Cannot find component with identifier "items" in view.] with root cause
javax.faces.FacesException: Cannot find component with identifier "items" in view.
    at org.primefaces.util.ComponentUtils.findClientIds(ComponentUtils.java:249)
    at org.primefaces.renderkit.CoreRenderer.buildAjaxRequest(CoreRenderer.java:222)
    at org.primefaces.component.commandbutton.CommandButtonRenderer.encodeMarkup(CommandButtonRenderer.java:81)
    at org.primefaces.component.commandbutton.CommandButtonRenderer.encodeEnd(CommandButtonRenderer.java:53)
    at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:879)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1650)
    at javax.faces.render.Renderer.encodeChildren(Renderer.java:164)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:849)
    at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:300)
    at com.sun.faces.renderkit.html_basic.GridRenderer.renderRow(GridRenderer.java:181)
    at com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:125)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:849)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1643)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1646)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1646)
    at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:389)
    at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:127)
    at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:117)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
    at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:135)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:309)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79)
    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:225)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    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:1001)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)
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1 に答える 1

1

:itemsコンポーネント ツリーの外側にあるため、すぐに を試してください 。また、primefaces の ajax 動作の使用の詳細については、ここからショーケースの例を確認できます。さらに、この場合、 firebugを使用してコンポーネントを観察できます。 EDIT： BalusCの警告の後、同じNamingContainerにないため、同じコンポーネントツリー内にないためではなく、問題が発生しているのは正しいです。

h: form、f: subviewおよびのような標準コンポーネントは、h: dataTableコンテナに名前を付けています。コンポーネントのほとんどのセットは、いくつかのネーミング コンテナーに含まれているため、この場合、タグの外側にあるため、:itemsそれを参照する正しい方法になります。

これらの投稿を参照して、トピックをうまく理解してください。

于 2013-03-11T20:23:47.047 に答える