Java 线程池框架

public class MyThread extends Thread { @Override publicvoid run() { System.out.println(Thread.currentThread().getName() + "正在执行"); }}

ExecutorService pool = Executors. newSingleThreadExecutor(); Thread t1 = new MyThread(); Thread t2 = new MyThread(); Thread t3 = new MyThread(); //将线程放入池中进行执行 pool.execute(t1); pool.execute(t2); pool.execute(t3); //关闭线程池 pool.shutdown();

pool-1-thread-1正在执行pool-1-thread-1正在执行pool-1-thread-1正在执行

ExecutorService pool = Executors.newFixedThreadPool(3);Thread t1 = new MyThread(); Thread t2 = new MyThread(); Thread t3 = new MyThread(); Thread t4 = new MyThread(); Thread t5 = new MyThread(); //将线程放入池中进行执行 pool.execute(t1); pool.execute(t2); pool.execute(t3); pool.execute(t4); pool.execute(t5);pool.shutdown();

pool-1-thread-1正在执行pool-1-thread-2正在执行pool-1-thread-1正在执行pool-1-thread-2正在执行

ExecutorService pool = Executors.newCachedThreadPool(); Thread t1 = new MyThread(); Thread t2 = new MyThread(); Thread t3 = new MyThread(); Thread t4 = new MyThread(); Thread t5 = new MyThread(); //将线程放入池中进行执行 pool.execute(t1); pool.execute(t2); pool.execute(t3); pool.execute(t4); pool.execute(t5); //关闭线程池 pool.shutdown();

pool-1-thread-2正在执行pool-1-thread-4正在执行pool-1-thread-3正在执行pool-1-thread-1正在执行pool-1-thread-5正在执行

ScheduledExecutorService pool = Executors.newScheduledThreadPool(2);pool.scheduleAtFixedRate(new Runnable() {//每隔一段时间就触发异常  @Override  public void run() {   //throw new RuntimeException();   System.out.println("================");  } }, 1000, 2000, TimeUnit.MILLISECONDS);pool.scheduleAtFixedRate(new Runnable() {//每隔一段时间打印系统时间，证明两者是互不影响的  @Override  public void run() {   System.out.println("+++++++++++++++++");  } }, 1000, 2000, TimeUnit.MILLISECONDS);

================+++++++++++++++++++++++++++++++++++++++++++++++++++