package com.completablecuture;


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

/**
 * 异步调用：CompletableFuture
 * 异步执行
 * 成功回调
 * 失败回调
 */
public class CompletableFutureDemo {
    public static void main(String[] args) throws ExecutionException, InterruptedException {
        //发起一个请求
        CompletableFuture<Void> completableFuture = CompletableFuture.runAsync(()->{

            try {
                TimeUnit.SECONDS.sleep(2);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

            System.out.println(Thread.currentThread().getName()+"===>runAsync==>Void");
        });
        System.out.println("hello world!");
        completableFuture.get();//获取阻塞执行线程

    }

}