JSF事件监听

<f:actionListener binding="" type="" for="" id="" />标签用于为最接近的父标签注册一个ActionListener实例.

type 属性用java 类的完全限定名注册一个ActionListener.

/** * ActionListenerImpl.java 2010-4-25 21:34 */ package jsf.listener; import javax.faces.event.AbortProcessingException; import javax.faces.event.ActionEvent; import javax.faces.event.ActionListener; /** * * @author 杨坚 */ public class ActionListenerImpl implements ActionListener { public void processAction(ActionEvent event) throws AbortProcessingException { } }

 

<f:actionListener type="jsf.listener.ActionListenerImpl" />

binding 属性用于绑定一个表达式额计算结果,它需实现 javax.faces.event.ActionListener.

/** * JsfBean.java 2010-4-25 21:30 */ package test; import javax.faces.bean.ManagedBean; import javax.faces.bean.ViewScoped; import javax.faces.event.AbortProcessingException; import javax.faces.event.ActionEvent; import javax.faces.event.ActionListener; /** * * @author 杨坚 */ @ManagedBean(name = "jsfbean") @ViewScoped public class JsfBean { public ActionListener getActionListenerImpl() { return new ActionListener() { public void processAction(ActionEvent event) throws AbortProcessingException { System.out.println("JsfBean$ActionListener:processAction"); } }; } }

<f:actionListener bindding="#{jsfbean.actionListenerImpl}" />

 

for 这个属性还没搞懂有啥用.