进阶day06-线程池ThreadPoolExecutor的创建--方式一
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javaSE-day06/src/com/inmind/thread_pool10/Demo10.java
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javaSE-day06/src/com/inmind/thread_pool10/Demo10.java
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package com.inmind.thread_pool10;
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import java.util.concurrent.*;
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/*
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在java中使用一个接口表示线程池ExecutorService
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如何获取线程池对象??
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方式一:直接创建实现类ThreadPoolExecutor 的对象
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方式二:Executors(线程池)的静态方法
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方式一的构造方法:
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ThreadPoolExecutor(
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int corePoolSize,
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int maximumPoolSize,
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long keepAliveTime,
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TimeUnit unit,
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BlockingQueue<Runnable> workQueue,
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ThreadFactory threadFactory,
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RejectedExecutionHandler handler)
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参数一:corePoolSize,指定线程池核心线程的数量
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参数二:maximumPoolSize,指定线程池的最大线程数量
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参数三:keepAliveTime,指定临时线程的存活时间
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参数四:unit,指定临时线程存活时间单位(秒,分,时,天)
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参数五:workQueue 指定线程池的任务队列
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参数六:threadFactory,指定线程池的线程工厂
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参数七:handler,指定线程池的任务拒绝策略
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*/
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public class Demo10 {
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public static void main(String[] args) {
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//使用多态创建线程池
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ExecutorService threadPool = new ThreadPoolExecutor(
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3,
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5,
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8,
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TimeUnit.SECONDS,
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new ArrayBlockingQueue<>(4),
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Executors.defaultThreadFactory(),
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new ThreadPoolExecutor.AbortPolicy());
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System.out.println("程序程序");
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}
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}
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javaSE-day06/src/com/inmind/thread_state09/Demo09.java
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javaSE-day06/src/com/inmind/thread_state09/Demo09.java
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package com.inmind.thread_state09;
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/*
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线程状态。 线程可以处于以下状态之一:
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NEW
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1.新建状态 new Thread(),创建线程对象时
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RUNNABLE
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2.运行状态 thread.start()线程启动就是运行状态
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BLOCKED
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3.阻塞状态:遇到synchronized关键字,还没有锁对象,线程就处于阻塞状态
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WAITING
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4.无限等待状态:当一个线程必须等着其他线程去唤醒,这就是无限等待状态(wait)
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TIMED_WAITING
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5.计时等待:当一个线程,等着时间到了,之后立马开始运行,这就是计时等待状态(sleep)
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TERMINATED
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6.结束状态:
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1.线程正常执行完毕,就是结束状态
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2.线程非正常执行完毕,stop方法
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*/
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public class Demo09 {
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}
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