myinterceptor.java

关于Struts2的一些编程例子集合！希望对学习Struts2的朋友有帮助！

package com.briup;

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

@SuppressWarnings("serial")
public class MyInterceptor implements Interceptor {
	//实现执行次数的累加
	private int counter=0;
	//封装来自配置文件所配置的name名称的参数值
	private String name;
	public int getCounter() {
		return counter;
	}

	public void setCounter(int counter) {
		this.counter = counter;
	}

	public String getName() {
		return name;
	}

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

	public void destroy() {
		System.out.println("------------interceptor end----------");
	}

	public void init() {
		System.out.println("------------interceptor start----------");
	}

	@SuppressWarnings("unchecked")
	public String intercept(ActionInvocation arg0) throws Exception {
		/*
		 * 1、实现执行次数的计算
		 *   . 往控制台上输出执行次数
		 *   . 将执行次数存储至Session作用范围
		 * 2、计算Action执行时间
		 */
		String tip=name+" invoke "+ ++counter+" times. ";
		System.out.println(tip);
		arg0.getInvocationContext().getSession().put("tip", tip);
		long start=System.currentTimeMillis();
		String result=arg0.invoke();
		long end=System.currentTimeMillis();
		System.out.println("duration:"+(end-start));
		return result;
	}

}