JAVA5线程并发库[8]-Exchanger(转)
??? 用于实现两个线程之间的数据交换，每个人在完成一定的事务后想与对方交换数据，第一个先拿出数据的人要一直等待第二个人拿着数据到来时，才能彼此交换数据
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import java.util.concurrent.Exchanger;import java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;?public class ExchangerTest {?????public static void main(String[] args) {????????ExecutorService service = Executors.newCachedThreadPool();????????final Exchanger<String> exchanger = new Exchanger<String>();????????service.execute(new Runnable() {????????????public void run() {????????????????try {?????????????????????String data1 = "MacBook Pro";????????????????????System.out.println("线程" + Thread.currentThread().getName()????????????????????????????+ "正在把数据" + data1 + "换出去");????????????????????Thread.sleep((long) (Math.random() * 10000));????????????????????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 = "8000RMB";????????????????????System.out.println("线程" + Thread.currentThread().getName()????????????????????????????+ "正在把数据" + data1 + "换出去");????????????????????Thread.sleep((long) (Math.random() * 10000));????????????????????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.shutdown();????}}?
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转自：http://blog.onede4.com/java5-thread-concurrent-exchanger/