我正在使用使用primefaces的jsf web应用程序，我已经在xhtml页面中使用primefaces实现了样本表单，并且我创建了一个bean类。
当我编译它时，我得到了这个异常
SEVERE: An exception occurred
javax.faces.FacesException: java.lang.NoSuchMethodError: org.primefaces.util.ComponentUtils.getValueToRender(Ljavax/faces/context/FacesContext;Ljavax/faces/component/UIComponent;)Ljava/lang/String;
at org.apache.myfaces.shared_impl.context.ExceptionHandlerImpl.wrap(ExceptionHandlerImpl.java:241)
at org.apache.myfaces.shared_impl.context.ExceptionHandlerImpl.handle(ExceptionHandlerImpl.java:156)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:258)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:191)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
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:312)
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)
Caused by: java.lang.NoSuchMethodError: org.primefaces.util.ComponentUtils.getValueToRender(Ljavax/faces/context/FacesContext;Ljavax/faces/component/UIComponent;)Ljava/lang/String;
at org.primefaces.component.inputtext.InputTextRenderer.encodeMarkup(InputTextRenderer.java:77)
at org.primefaces.component.inputtext.InputTextRenderer.encodeEnd(InputTextRenderer.java:51)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:519)
at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChild(RendererUtils.java:543)
at org.apache.myfaces.shared_impl.renderkit.html.HtmlGridRendererBase.renderChildren(HtmlGridRendererBase.java:315)
at org.apache.myfaces.shared_impl.renderkit.html.HtmlGridRendererBase.encodeEnd(HtmlGridRendererBase.java:150)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:519)
at org.primefaces.renderkit.CoreRenderer.renderChild(CoreRenderer.java:59)
at org.primefaces.renderkit.CoreRenderer.renderChildren(CoreRenderer.java:43)
at org.primefaces.component.panel.PanelRenderer.encodeContent(PanelRenderer.java:220)
at org.primefaces.component.panel.PanelRenderer.encodeMarkup(PanelRenderer.java:144)
at org.primefaces.component.panel.PanelRenderer.encodeEnd(PanelRenderer.java:74)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:519)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:618)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:614)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:614)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:614)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:614)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:614)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:614)
at org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.renderView(FaceletViewDeclarationLanguage.java:1159)
at org.apache.myfaces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:263)
at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:85)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:239)
... 17 more
我的sample.xhtml页面是
<ui:composition template="/pages/layout.xhtml"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.org/ui"
xmlns:c="http://java.sun.com/jsp/jstl/core">
<ui:define name="content">
<h:form id="form">
<p:panel id="panel" header="New Person">
<p:messages id="msgs"/>
<h:panelGrid columns="3">
<h:outputLabel for="firstname" value="Firstname: *" />
<p:inputText id="firstname" value="#{personBean.firstname}" required="true" label="Firstname">
<f:validateLength minimum="2" />
</p:inputText>
<p:message for="firstname" display="icon"/>
<h:outputLabel for="surname" value="Surname: *" />
<p:inputText id="surname" value="#{personBean.surname}" label="Surname" required="true">
<f:validateLength minimum="2" />
<p:ajax update="msgSurname" event="keyup" />
</p:inputText>
<p:message for="surname" id="msgSurname" display="icon"/>
</h:panelGrid>
<p:commandButton id="btn" value="Save" update="panel" actionListener="#{personBean.savePerson}"/>
</p:panel>
</h:form>
</ui:define>
</ui:composition>
我的bean类是
package com.cation.action;
import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;
import javax.faces.event.ActionEvent;
public class PersonBean {
private String firstname;
private String surname;
public String getFirstname() {
return firstname;
}
public void setFirstname(String firstname) {
this.firstname = firstname;
}
public String getSurname() {
return surname;
}
public void setSurname(String surname) {
this.surname = surname;
}
public void savePerson(ActionEvent actionEvent) {
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage("Welcome " + firstname + " " + surname + "!"));
}
}
我的web.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>Cation</display-name>
<context-param>
<param-name>javax.faces.PROJECT_STAGE</param-name>
<param-value>Development</param-value>
</context-param>
<context-param>
<param-name>javax.faces.DEFAULT_SUFFIX</param-name>
<param-value>.xhtml</param-value>
</context-param>
<welcome-file-list>
<welcome-file>faces/login.xhtml</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.faces</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.xhtml</url-pattern>
</servlet-mapping>
<listener>
<listener-class>org.apache.myfaces.webapp.StartupServletContextListener</listener-class>
</listener>
</web-app>
任何人都可以帮我解决这个问题。