java线程数据交换Exchanger

想你了的他他

　　两个线程都等到交换函数才能完成交换数据操作，代码如下：



package threadLock;
import java.util.Random;
import java.util.concurrent.Exchanger;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public class ExchangerTest {
public static void main(String[] args) {
final Exchanger<String> ex = new Exchanger<String>();
ExecutorService service = Executors.newCachedThreadPool();
service.execute(new  Runnable() {
public void run() {
String data1 = "5555";
System.out.println("线程" + Thread.currentThread().getName() + "正在把" + "\"" + data1 + "\"交换出去" );
try {
Thread.sleep(new Random().nextInt(1000));
String data2 = ex.exchange(data1);
System.out.println("线程" + Thread.currentThread().getName() + "交换后的数据为\"" + data2 + "\"");
} catch (InterruptedException e) {
e.printStackTrace();
}
}
});
service.execute(new Runnable() {
@Override
public void run() {
String data1 = "gghhh";
System.out.println("线程" + Thread.currentThread().getName() + "正在把" + "\"" + data1 + "\"交换出去" );
try {
Thread.sleep(new Random().nextInt(1000));
String data2 = ex.exchange(data1);
System.out.println("线程" + Thread.currentThread().getName() + "交换后的数据为\"" + data2 + "\"");
} catch (InterruptedException e) {
e.printStackTrace();
}
}
});
service.shutdown();
}
}