Struts2的监听器的使用

一，建立监听器：
        实现com.opensymphony.xwork2.interceptor.PreResultListener接口
        public class MyListener implements PreResultListener {

            public void beforeResult(ActionInvocation actionInvocation, String resultCode) {
               
                System.out.println("监听器："+resultCode);
                       
            }
       
        }
   
    二，注册监听器(要在拦截器中注册临听器)   
        public class MyInterceptor extends AbstractInterceptor {

            @Override
            public String intercept(ActionInvocation actionInvocation) throws Exception {
               
                /**
                 * 注册监听器
                 */
                actionInvocation.addPreResultListener(new MyListener());
               
                System.out.println("拦截器之前");
                String result = actionInvocation.invoke();
                System.out.println("拦截器之后");
                return result;
            }
       
        }
       
    三，监听器是在Action里的方法执行完后，在出拦截器方法之前执行！