Action的监听器——PreResultListener

监听器类：

package com.suo.listeners;

import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.PreResultListener;

public class BeforeResultListener implements PreResultListener {

@Override
public void beforeResult(ActionInvocation invocation, String resultCode) {
// TODO Auto-generated method stub
System.out.println("beforeResult invoke ! "+resultCode);
}

}

拦截器：

package com.suo.interceptor;

import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.Interceptor;

public class MyInterceptor implements Interceptor {

@Override
public void destroy() {
// TODO Auto-generated method stub
}

@Override
public void init() {
// TODO Auto-generated method stub
System.out.println("init invoke !");
}

@Override
public String intercept(ActionInvocation invocation) throws Exception {

invocation.addPreResultListener(new BeforeResultListener());//增加一个监听器

System.out.println("before MyInterceptor invoke !");

String result=invocation.invoke();

System.out.println("after MyInterceptor invoke !");

return result;
}

}