ReentrantLock还可以指定为公平锁
package com.qqjx.thread;
import java.util.concurrent.locks.ReentrantLock;
public class T05_ReentrantLock5 {
private static ReentrantLock lock=new ReentrantLock(true);
public void run() {
for(int i=0; i<10; i++) {
lock.lock();
try{
System.out.println(Thread.currentThread().getName()+"获得锁");
}finally{
lock.unlock();
}
}
}
public static void main(String[] args) {
T05_ReentrantLock5 rl=new T05_ReentrantLock5();
Thread th1=new Thread(()->rl.run());
Thread th2=new Thread(()->rl.run());
th1.start();
th2.start();
}
}
Thread-1获得锁
Thread-0获得锁
Thread-1获得锁
Thread-0获得锁
Thread-1获得锁
Thread-0获得锁
Thread-1获得锁
Thread-0获得锁
Thread-1获得锁
Thread-0获得锁
Thread-1获得锁
Thread-0获得锁
Thread-1获得锁
Thread-0获得锁
Thread-1获得锁
Thread-1获得锁
Thread-0获得锁
Thread-1获得锁
Thread-0获得锁
Thread-0获得锁