ExchangerTest.java

package org.hongxi.java.util.concurrent;

import java.util.concurrent.Exchanger;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

/**
 * @author shenhongxi 2019/8/11
 */
public class ExchangerTest {
    public static void main(String[] args) {
        ExecutorService executorService = Executors.newCachedThreadPool();
        final Exchanger<String> exchanger = new Exchanger<String>();
        executorService.execute(() -> {
            try {
                String data1 = "zxx";
                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 = exchanger.exchange(data1);
                System.out.println("线程" + Thread.currentThread().getName()
                        + "换回的数据为" + data2);
            } catch (Exception e) {
                e.printStackTrace();
            }
        });
        executorService.execute(() -> {
            try {
                String data1 = "lhm";
                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 = exchanger.exchange(data1);
                System.out.println("线程" + Thread.currentThread().getName()
                        + "换回的数据为" + data2);
            } catch (Exception e) {
                e.printStackTrace();
            }
        });
    }
}