Exchanger用于实现两个人之间的数据交换，每个人在完成一定的事物后想与对方交换数据，第一个先拿出数据的人将一直等待第二个人拿着数据到来时，才能彼此交换数据。
案例：
public class ExchangerTest {
public static void main(String[] args) {
/* 创建缓存型线程池 */
ExecutorService service = Executors.newCachedThreadPool();
/* 创建爱你Exchanger对象 */
final Exchanger exchanger = new Exchanger();
service.execute(new Runnable() {
public void run() {
try {
String data1 = "胡锦涛";
System.out.println("线程" + Thread.currentThread().getName() + "正在把数据" + data1 + "换出去");
/*休眠*/
Thread.sleep((long) (Math.random() * 10000));
/*交换数据*/
String data2 = (String) exchanger.exchange(data1);
System.out.println("线程" + Thread.currentThread().getName() + "换回的数据为" + data2);
} catch (Exception e) {
}
}
});
service.execute(new Runnable() {
public void run() {
try {
String data1 = "习近平";
System.out.println("线程" + Thread.currentThread().getName() + "正在把数据" + data1 + "换出去");
/*休眠*/
Thread.sleep((long) (Math.random() * 10000));
/*交换数据*/
String data2 = (String) exchanger.exchange(data1);
System.out.println("线程" + Thread.currentThread().getName() + "换回的数据为" + data2);
} catch (Exception e) {
}
}
});
}
}
程序运行的结果：
