privatestatic voidexceptionUsingHandle(){Integer age=-1;CompletableFuture<String>exceptionFuture=CompletableFuture.supplyAsync(()->{if(age<0){thrownewIllegalArgumentException("Age can not be negative");}if(age>18){return"Adult";}else{return"Child";}}).handle((result,ex)->{if(ex!=null){Syste...
1// 执行异步任务2CompletableFuture cf=CompletableFuture.supplyAsync(()->{3System.out.println("cf 任务执行开始");4sleep(10,TimeUnit.SECONDS);5System.out.println("cf 任务执行结束");6return"楼下小黑哥";7});8//9Executors.newSingleThreadScheduledExecutor().execute(()->{10sleep(5,TimeUnit.SEC...
}// step2: 读取新闻稿 thread2valnewsFuture: Future<String> = executor.submit<String> { CommonUtils.readFile("news.txt") }// step3 : 替换操作 thread3valreplaceFuture = executor.submit<String> {valwords = filterWordFuture.get()varnews = newsFuture.get()for(wordinwords) {if(news.indexOf...
public class FutureDemo {public static void main(String[] args) throws ExecutionException, InterruptedException {ExecutorService executor = Executors.newFixedThreadPool(5);// step 1: 读取敏感词汇Future<String[]> filterWordFuture = executor.submit(() -> {String str = CommonUtils.readFile("filte...
本文从实例出发,介绍 CompletableFuture 基本用法。不过讲的再多,不如亲自上手练习一下。所以建议各位小伙伴看完,上机练习一把,快速掌握 CompletableFuture。★ 个人博文地址:https://sourl.cn/s5MbCm ”全…
CompletableFuture.complete("Future的结果");复制代码 1. 所有等待这个Future的客户端都将得到指定的结果。并且对completableFuture.complete()的后续调用将被忽略。 3.2 使用runAsync()运行一个没有返回值的异步任务 如果您要异步运行某些后台任务,并且不想从任务中返回任何内容,则可以使用CompletableFuture.runAsync()方...
编程老司机带你玩转 CompletableFuture 异步编程,本文从实例出发,介绍 CompletableFuture 基本用法。不过讲的再多,不如亲自上手练习一下。所以建议各位小伙伴看完,上机练习一把,快速掌握CompletableFuture。全文摘要:Future VS CompletableFutureCompletableFuture 基
Java 8 CompletableFuture Java 8 有大量的新特性和增强如 Lambda 表达式,Streams,CompletableFuture等。在本篇文章...
In this blog we will be comparing Java 5’s Future with Java 8’s CompletableFuture on the basis of two categories i.e. manual completion and attaching a callable method.
CompletableFuture实现了Future, CompletionStage接口,实现了Future接口就可以兼容现在有线程池框架,而CompletionStage接口才是异步编程的接口抽象,里面定义多种异步方法,通过这两者集合,从而打造出了强大的CompletableFuture类。 Future vs CompletableFuture Futrue在Java里面,通常用来表示一个异步任务的引用,比如我们将任务提交到...