Ajax not working JSF 2.2

问题

I'm using JSF 2.2 with TomCat 6. When I execute an ajax function the fields are not updated. I created a new project with just one controller and page even so, the ajax calls doesn't work. It calls the method but doesn't update the page.

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:rich="http://richfaces.org/rich" xmlns:a4j="http://richfaces.org/a4j" xmlns:ajax="https://ajax4jsf.dev.java.net/ajax">

<h:head>
</h:head>
<h:body>

    <h:form id="formTest">
        <h:outputLabel value="#{teste.teste}" id="testando" />
        <h:inputText value="#{teste.teste}" />
        <a4j:commandButton action="#{teste.agir}" render="formTest" execute="formTest" />

    </h:form>
</h:body>

</html>

Controller:

@ManagedBean(name = "teste")
@SessionScoped
public class Teste {

private String teste = "oi";

public void agir() {
teste = "666666";
System.out.println(getTeste());
}

public String getTeste() {
return teste;
}

public void setTeste(String teste) {
this.teste = teste;
}
}

web.xml

<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
      <display-name>Try</display-name>
      <welcome-file-list>
        <welcome-file>index.jsf</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>*.jsf</url-pattern>
     </servlet-mapping>
     <context-param>
        <description>State saving method: 'client' or 'server' (=default). See JSF Specification 2.5.2</description>
        <param-name>javax.faces.STATE_SAVING_METHOD</param-name>
        <param-value>client</param-value>
      </context-param>
      <context-param>
        <param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>
       <param-value>resources.application</param-value>
      </context-param>
      <listener>
       <listener-class>com.sun.faces.config.ConfigureListener</listener-class>
     </listener>
    </web-app>

回答1:

Tomcat 6 is based in Servlet 2.5 spec, while JSF 2.2 requires Servlet 3.0. Don't get puzzled by it, upgrade your Tomcat version to 7.x branch or downgrade the JSF implementation version to 2.1.x.

See also:

Apache Tomcat Version Details
What's new in JSF 2.2?
JSF-Servlet compatibility

来源：https://stackoverflow.com/questions/21575348/ajax-not-working-jsf-2-2

标签

java

ajax

Tomcat

ajax4jsf

jsf-2.2