今天我们通过实例来学习一下ExecutorService的用法.我徒然学会了抗拒热闹,却还来不及透悟真正的冷清. ExecutorService的简单实例 一.ExecutorService的简单使用例子 public class ExecutorServiceTest { public static void main(String[] args) throws Exception { ExecutorService service = Executors.newSingleThreadExe…
Thread和ExecutorService的区别 使用Thread,当子线程执行结束后,主线程如果没有其他执行任务,主线程会终止. /** * Created by litao on 15/10/7. */ public class ThreadTest { public static void main(String[] args) { Thread threadA=new Thread() { @Override public void run() { super.run(); Syste…
Class Executors java.lang.Object java.util.concurrent.Executors public class Executors extends Object Factory and utility methods for Executor, ExecutorService, ScheduledExecutorService, ThreadFactory, and Callable classes defined in this package. Th…
1, Process&Threads Most implementations of the Java virtual machine run as a single process. Threads exist within a process — every process has at least one. Threads share the process's resources, including memory and open files. This makes for effic…
newFixedThreadPool 创建一个固定大小的线程池. shutdown():用于关闭启动线程,如果不调用该语句,jvm不会关闭. awaitTermination():用于等待子线程结束,再继续执行下面的代码.该例中我设置一直等着子线程结束. Java代码 收藏代码 public class Test { public static void main(String[] args) throws IOException, InterruptedException { Executor…
Vertx Vert.x is a tool-kit for building reactive applications on the JVM.(Vertx是运行在JVM上用来构建reactive application的工具集) Vertx Design 响应式的(Responsive):一个响应式系统需要在合理的时间内处理请求. 弹性的(Resilient):一个响应式系统必须在遇到异常(崩溃,超时, 500 错误等等)的时候保持响应的能力,所以它必须要为异常处理 而设计. 可伸缩的(El…
本文是对阿里插件中规约的详细解释二,关于插件使用,请参考这里 及时清理不再使用的代码段或配置信息. 说明:对于垃圾代码或过时配置,坚决清理干净,避免程序过度臃肿,代码冗余 Positive example: For codes which are temporarily removed and likely to be reused, use /// to add a reasonable note. public static void hello() { /// Business is st…
IDEA导入阿里规约插件,当你这样写代码时,插件就会自动监测出来,并给你红线提醒. 告诉你手动创建线程池,效果会更好. 在探秘原因之前我们要先了解一下线程池 ThreadPoolExecutor 都有哪些参数及其意义. ThreadPoolExecutor 构造方法: public ThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue<R…
