Jsf 2 ajax代码在带有jsf和maven的eclipse中不起作用

Jsf 2 ajax代码在带有jsf和maven的eclipse中不起作用,jsf-2,maven-2,Jsf 2,Maven 2,这是我的Bean类,我在pom.xml中使用xhtml并使用maven所有必需的jar @ManagedBean @SessionScoped public class HelloBean implements Serializable { private static final long serialVersionUID = 1L; private String name; public String getName() { return name; } public voi

这是我的Bean类,我在pom.xml中使用xhtml并使用maven所有必需的jar

@ManagedBean
@SessionScoped
public class HelloBean implements Serializable {

private static final long serialVersionUID = 1L;

private String name;

public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

public String getSayWelcome(){
    //check if null?
    if("".equals(name) || name ==null){
        return "";
    }else{
        return "Ajax message : Welcome " + name;
    }
}
}

这是我的helloAjax.xhtml

<?xml version="1.0" encoding="UTF-8"?>
<!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:f="http://java.sun.com/jsf/core"      
  xmlns:h="http://java.sun.com/jsf/html">

<h:body>
    <h3>JSF 2.0 + Ajax Hello World Example</h3>

    <h:form>

        <h:inputText id="name" value="#{helloBean.name}"></h:inputText>
        <h:commandButton value="Welcome Me">
             <f:ajax execute="name" render="output" />
        </h:commandButton>

        <h2><h:outputText id="output" value="#{helloBean.sayWelcome}" /></h2>

    </h:form>

</h:body>
</html>

JSF2.0+Ajax Hello World示例
但是在运行了这个页面之后,我在输出中只得到了标题,并且在pom.xml中使用了JSFAPI和jsf imple

请引导我