CompletableFuture-对计算结果合并

package com.nanjing.gulimall.zhouyimo.test;

import java.util.concurrent.CompletableFuture;
import java.util.concurrent.TimeUnit;

/**
 * @author zhou
 */
public class CompletableFutureCombineDemo {
    public static void main(String[] args) {
        CompletableFuture completableFuture1 = CompletableFuture.supplyAsync(() -> {
            System.out.println(Thread.currentThread().getName() + " 启动");
            try {
                TimeUnit.SECONDS.sleep(1);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            return 10;
        });

        CompletableFuture completableFuture2 = CompletableFuture.supplyAsync(() -> {
            System.out.println(Thread.currentThread().getName() + " 启动");
            try {
                TimeUnit.SECONDS.sleep(2);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            return 20;
        });

        CompletableFuture finalResult = completableFuture1.thenCombine(completableFuture2, (x, y) -> {
            System.out.println("----------开始两个结果合并");
            return x + y;
        });
        System.out.println(finalResult.join());

    }
}


ForkJoinPool.commonPool-worker-1 启动
ForkJoinPool.commonPool-worker-2 启动
----------开始两个结果合并
30