死锁

最新推荐文章于 2025-05-09 23:30:31 发布

原创最新推荐文章于 2025-05-09 23:30:31 发布 · 394 阅读

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CC 4.0 BY-SA版权

本文通过两个Java线程的实例演示了如何因获取锁的顺序不同而导致死锁的情况。示例中定义了两个锁对象lock1和lock2，并分别由两个线程以相反的顺序尝试获取这两个锁。

public class MyRunnable1 implements Runnable{
String lock1=”abc”;
String lock2=”dds”;

public void run() {
synchronized (lock1) {
    try {
        Thread.sleep(1000);
    } catch (InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    System.out.println("我在等lock2");
}
synchronized (lock2) {

}
}

public class MyRunnable2 implements Runnable{
String lock1=”abc”;
String lock2=”dds”;

public void run() {
    synchronized (lock2) {
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        System.out.println("我在等你把lock1给我");
    }
    synchronized (lock1) {

    }

}
public class Test {

public static void main(String[] args) {
          MyRunnable1 t1=new MyRunnable1();
          MyRunnable2 t2=new MyRunnable2();
          Thread run1=new Thread(t1,"张三");
          Thread run2=new Thread(t2,"李四");
          run1.start();
          run2.start();
}