简单的Timer例子

一个简单的Timer例子

山哥 http://csdn.blog.net/duoshan

有时想要换一定的间隔时间执行重复的任务，java.util.Timer可以很简单的帮你实现。当然你也可以用多线程来实现。下面是用java.util.Timer来实现这个功能。

//myTask.java 定义TimerTask任务,我们会在doTask中调用.

//这里只是简单的打印一下任务参数

public class myTask

extends java.util.TimerTask {

String jobName;

private int i;

public void run() { //run in interface Runnabl

System.out.println(jobName);

}

public myTask(String jobName) {

this.jobName = jobName;

}

}

//doTask.java

import java.util.*;

import java.io.*;

public class doTask {

private java.util.Timer timer;

private java.util.TimerTask task;

public doTask(java.util.TimerTask task) {

this.timer = new Timer();

this.task = task;

}

public void start(int delay, int internal) {

timer.schedule(task, delay * 1000, internal * 1000);//利用timer.schedule方法

}

public static void main(String[] args) {

java.util.TimerTask task1 = new myTask(" Job 1");

java.util.TimerTask task2= new myTask("Job 2");

doTask pt = new doTask(task1);

pt.start(1,3);

doTask pt2 = new doTask(task2);

pt2.start(1,1);

}

}

结果如下;

Job 1

Job 2

Job 2

Job 2

Job 1

Job 2

Job 2

Job 2

.

.