javax.faces.FacesException: Exception while calling encodeEnd on component : {Component-Path : [Clas
在运行JSF工程时出现下面错误信息：
javax.faces.FacesException: Exception while calling encodeEnd on component : {Component-Path : [Class: org.ajax4jsf.component.AjaxViewRoot,ViewId: /sysReport/showStu.jsp][Class: javax.faces.component.html.HtmlPanelGrid,Id: j_id_jsp_3570473_1]}
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:626)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:261)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:257)
at org.apache.myfaces.application.jsp.JspViewHandlerImpl.actuallyRenderView(JspViewHandlerImpl.java:427)
at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:383)
at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:100)
at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:176)
at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:140)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:155)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:147)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)
at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:390)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:517)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.sinosoft.common.filters.UserAccessLogFilter.doFilter(UserAccessLogFilter.java:69)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.sinosoft.common.filters.EncodingSetFilter.doFilter(EncodingSetFilter.java:36)
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:228)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445)
at java.lang.Thread.run(Unknown Source)
Caused by: javax.faces.FacesException: Exception while calling encodeEnd on component : {Component-Path : [Class: org.ajax4jsf.component.AjaxViewRoot,ViewId: /sysReport/showStu.jsp][Class: javax.faces.component.html.HtmlPanelGrid,Id: j_id_jsp_3570473_1][Class: org.ajax4jsf.component.html.AjaxForm,Id: form1][Class: javax.faces.component.html.HtmlPanelGroup,Id: j_id_jsp_3570473_3]}
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:626)
at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChild(RendererUtils.java:522)
at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChildren(RendererUtils.java:499)
at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChild(RendererUtils.java:520)
at org.apache.myfaces.shared_impl.renderkit.html.HtmlGridRendererBase.renderChildren(HtmlGridRendererBase.java:231)
at org.apache.myfaces.shared_impl.renderkit.html.HtmlGridRendererBase.encodeEnd(HtmlGridRendererBase.java:102)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:623)
... 36 more
Caused by: javax.faces.FacesException: Exception while calling encodeEnd on component : {Component-Path : [Class: org.ajax4jsf.component.AjaxViewRoot,ViewId: /sysReport/showStu.jsp][Class: javax.faces.component.html.HtmlPanelGrid,Id: j_id_jsp_3570473_1][Class: org.ajax4jsf.component.html.AjaxForm,Id: form1][Class: javax.faces.component.html.HtmlPanelGroup,Id: j_id_jsp_3570473_3][Class: javax.faces.component.html.HtmlSelectOneMenu,Id: polistatus]}
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:626)
at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChild(RendererUtils.java:522)
at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChildren(RendererUtils.java:499)
at org.apache.myfaces.shared_impl.renderkit.html.HtmlGroupRendererBase.encodeEnd(HtmlGroupRendererBase.java:92)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:623)
... 42 more
Caused by: java.lang.IllegalArgumentException: Value binding '#{student.poliStaList}'of UISelectItems with component-path {Component-Path : [Class: org.ajax4jsf.component.AjaxViewRoot,ViewId: /sysReport/showStu.jsp][Class: javax.faces.component.html.HtmlPanelGrid,Id: j_id_jsp_3570473_1][Class: org.ajax4jsf.component.html.AjaxForm,Id: form1][Class: javax.faces.component.html.HtmlPanelGroup,Id: j_id_jsp_3570473_3][Class: javax.faces.component.html.HtmlSelectOneMenu,Id: polistatus][Class: javax.faces.component.UISelectItems,Id: j_id_jsp_3570473_7]} does not reference an Object of type SelectItem, SelectItem[], Collection or Map but of type : null
at org.apache.myfaces.shared_impl.util.SelectItemsIterator.hasNext(SelectItemsIterator.java:167)
at org.apache.myfaces.shared_impl.renderkit.RendererUtils.internalGetSelectItemList(RendererUtils.java:557)
at org.apache.myfaces.shared_impl.renderkit.RendererUtils.getSelectItemList(RendererUtils.java:533)
at org.apache.myfaces.shared_impl.renderkit.html.HtmlRendererUtils.internalRenderSelect(HtmlRendererUtils.java:314)
at org.apache.myfaces.shared_impl.renderkit.html.HtmlRendererUtils.renderMenu(HtmlRendererUtils.java:288)
at org.apache.myfaces.shared_impl.renderkit.html.HtmlMenuRendererBase.encodeEnd(HtmlMenuRendererBase.java:57)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:623)
... 46 more
[Sinosoft] 2014-01-13 15:09:30 930 WARN [http-8080-1] org.apache.myfaces.renderkit.html.util.ReducedHTMLParser.parse(566) | Invalid tag found: unexpected input while looking for attr name or '/>' at line 125
出现该问题的原因是在bean.xml 中没有配置信息，在bean.xml中配置如下信息即可：
<managed-bean>
<description></description>
<managed-bean-name>student</managed-bean-name>
<managed-bean-class>com.sinosoft.wwl.StudentQuery</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
</managed-bean>