接口并行案列

 @SneakyThrows
    public static void main(String[] args) {

        //自定义线程池
        ThreadPoolExecutor executorService = new ThreadPoolExecutor(
                8,
                10,
                1L,
                TimeUnit.SECONDS,
                new ArrayBlockingQueue<>(100),
                new ThreadPoolExecutor.CallerRunsPolicy());
        //使用自定义线程池
/*        CompletableFuture<DemandFile> future1 = CompletableFuture.supplyAsync(() -> {
            System.out.println("任务一开始");
            DemandFile file = new DemandFile();
            file.setId("1");
            return file;
        },executorService);*/
        //不加自定义线程池  使用默认的
        CompletableFuture<DemandFile> future1 = CompletableFuture.supplyAsync(() -> {
            System.out.println("任务一开始");
            DemandFile file = new DemandFile();
            file.setId("1");
            return file;
        });
        CompletableFuture<DemandFile> future2 = CompletableFuture.supplyAsync(() -> {
            System.out.println("任务二开始");
            DemandFile file = new DemandFile();
            file.setId("2");
            return file;
        });
        获取结果，有返回值  务一和任务二完成 才走这
        future1.thenAcceptBothAsync(future2, (result1, result2) -> {
            System.out.println("感知任务一和任务二完成，执行任务三"+result1+"-----"+result2);
        });

        //获取结果，有返回值
        CompletableFuture<String> future = future1.thenCombineAsync(future2, (f1, f2) -> {  //参数f1,f2分别对应了future01,future02的返回值
            return f1 + ":" + f2 + "-> hello";
        });

//        Thread.sleep(1000);