多线程学习笔记三-优快云博客

本文链接：https://blog.youkuaiyun.com/retacn_yue/article/details/7941174

本文介绍了一个使用 Java 中 Exchanger 类实现的两个线程间数据交换的例子。通过 ExecutorService 创建线程池并执行两个任务，每个任务初始化一个字符串，并通过 Exchanger 对象与另一个线程交换数据。

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/**
* 两个线程进行数据交换
*
* @time 上午11:19:36
* @author retacn yue
* @Email zhenhuayue@sina.com
*/
@SuppressWarnings("unchecked")
public class ExchangerTest {

/**
* @param args
*/
public static void main(String[] args) {
exchange();
}

/**
*
*/
@SuppressWarnings("rawtypes")
private static void exchange() {
ExecutorService pool = Executors.newCachedThreadPool();
final Exchanger exchanger = new Exchanger();

pool.execute(new Runnable() {

@Override
public void run() {
try {
Thread.sleep((long) (Math.random() * 1000));
String temp = "retacn yue";
System.out.println("线程" + Thread.currentThread().getName() + "正在把数据" + temp + "换出去");
String temp2 = (String) exchanger.exchange(temp);
System.out.println("线程" + Thread.currentThread().getName() + "换为的数据为" + temp2);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
});
pool.execute(new Runnable() {

@Override
public void run() {
try {
Thread.sleep((long) (Math.random() * 1000));
String temp = "zhang san";
System.out.println("线程" + Thread.currentThread().getName() + "正在把数据" + temp + "换出去");
String temp2 = (String) exchanger.exchange(temp);
System.out.println("线程" + Thread.currentThread().getName() + "换为的数据为" + temp2);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
});
}
}