staticExecutorService executor=Executors.newFixedThreadPool(3,newThreadFactory(){int count=1;@OverridepublicThreadnewThread(Runnable runnable){returnnewThread(runnable,"custom-executor-"+count++);}});staticvoidthenApplyAsyncWithExecutorExample(){CompletableFuture cf=CompletableFuture.completedFuture("message")....
清单 16. 示例代码static void runAfterBothExample() { String original = "Message"; StringBuilder result = new StringBuilder(); CompletableFuture.completedFuture(original).thenApply(String::toUpperCase).runAfterBoth( CompletableFuture.completedFuture(original).thenApply(String::toLowerCase), ...
packagecom.example.cesium.utils;importjava.util.concurrent.CompletableFuture;importjava.util.concurrent.ForkJoinPool;publicclassCompletableFutureDemo {publicstaticvoidmain(String[] args) {//doSupplyAsync();//开启一个带返回值的异步任务 --- 小白在打王者和厨师做饭 应该为并行操作//doThenCompose();//连接...
staticvoidrunAfterBothExample() {Stringoriginal ="Message";StringBuilderresult =newStringBuilder();CompletableFuture.completedFuture(original).thenApply(String::toUpperCase).runAfterBoth(CompletableFuture.completedFuture(original).thenApply(String::toLowerCase), () -> result.append("done"));assertTrue("Res...
在异步编程中,我们经常需要处理各种异步任务和操作。Java8引入的 CompletableFuture 类为我们提供了一种强大而灵活的方式来处理异步编程需求。CompletableFuture 类提供了丰富的方法和功能,能够简化异步任务的处理和组合。 本文将深入解析 CompletableFuture,希望对各位读者能有所帮助。
import java.util.concurrent.CompletableFuture;import java.util.concurrent.ExecutionException;public class CompletableFutureExample {public static void main(String[] args) throws ExecutionException, InterruptedException {// 创建一个异步任务CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> ...
importjava.util.concurrent.CompletableFuture;publicclassCompletableFutureExample{publicstaticvoidmain(String[]args){CompletableFuture<String>future=CompletableFuture.supplyAsync(()->"Hello, CompletableFuture!");future.thenAccept(result->System.out.println(result));}} ...
Java 8 有大量的新特性和增强如Lambda 表达式,Streams,CompletableFuture等。在本篇文章中我将详细解释清楚CompletableFuture以及它所有方法的使用。 什么是CompletableFuture? 在Java中CompletableFuture用于异步编程,异步编程是编写非阻塞的代码,运行的任务在一个单独的线程,与主线程隔离,并且会通知主线程它的进度,成功或者...
importjava.util.concurrent.Executor; importjava.util.concurrent.Executors; publicclassMain { publicstaticvoidmain(String[] args) { // Example 1: Simple CompletableFuture CompletableFuture<String> future = CompletableFuture.supplyAsync(() ->"Hello") ...
import java.util.concurrent.CompletableFuture; import java.util.concurrent.ExecutionException; public class CompletableFutureExample { public static void main(String[] args) { // 启动一个异步任务,该任务返回一个字符串结果 CompletableFuture<String> future = CompletableFuture.supplyAsync(() -> { ...