java--ThreadPool线程池简单用法

package com.threadPool;

import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

public class TestThreadPool {
	private static int produceTaskSleepTime = 0;

	private static int produceTaskMaxNumber = 100000;

	public static void main(String[] args) {

		// 构造一个线程池
		ThreadPoolExecutor threadPool = new ThreadPoolExecutor(6, 100, 3,
				TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(3),
				new ThreadPoolExecutor.DiscardOldestPolicy());

		for (int i = 1; i <= produceTaskMaxNumber; i++) {
			try {
				String task = "task@ " + i;
				System.out.println("创建任务并提交到线程池中：" + task);
				threadPool.execute(new ThreadPoolTask(task));

				Thread.sleep(produceTaskSleepTime);
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	}
}

package com.threadPool;

import java.io.Serializable;

public class ThreadPoolTask implements Runnable, Serializable {
	private Object attachData;

	ThreadPoolTask(Object tasks) {
		this.attachData = tasks;
	}

	public void run() {

		System.out.println("开始执行任务：" + attachData);

		attachData = null;
	}

	public Object getTask() {
		return this.attachData;
	}
}

输出结果：

开始执行任务：task@ 97856
开始执行任务：task@ 97857
创建任务并提交到线程池中：task@ 97858
创建任务并提交到线程池中：task@ 97859
开始执行任务：task@ 97858
开始执行任务：task@ 97859
创建任务并提交到线程池中：task@ 97860
.......

参考网站：
http://my.eoe.cn/niunaixiaoshu/archive/4111.html