java多线程lock的使用

看代码:

package com.ming.thread.reentrantlock;

import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public class MyService {

    private Lock lock=new ReentrantLock();

    public void testMethodA(){
        lock.lock();
        for(int i=0;i<5;i++){
            System.out.println("方法A"+"ThreadName="+Thread.currentThread().getName()+"("+(i+1)+")");
        }
        lock.unlock();
    }

    public void testMethodB(){
        lock.lock();
        for(int i=0;i<5;i++){
            System.out.println("方法B"+"ThreadName="+Thread.currentThread().getName()+"("+(i+1)+")");
        }
        lock.unlock();
    }

}

package com.ming.thread.reentrantlock;

public class ThreadA extends Thread{

    private MyService service;

    public ThreadA(MyService service){
        super("A");
        this.service=service;
    }

    public void run(){
        service.testMethodA();
    }
}

package com.ming.thread.reentrantlock;

public class ThreadB extends Thread{

    private MyService service;

    public ThreadB(MyService service){
        super("B");
        this.service=service;
    }

    public void run(){
        service.testMethodB();
    }
}

package com.ming.thread.reentrantlock;

public class Run {

    public static void main(String[] args) {
        MyService service=new MyService();
        ThreadA a=new ThreadA(service);
        ThreadB b=new ThreadB(service);
        a.start();
        b.start();
    }
}

更多运用:http://blog.csdn.net/vking_wang/article/details/9952063