产生死锁的一段代码

秒速五厘米 2022-05-12 09:16 352阅读 0赞

public class Main {
        public static void main(String[] args) {
            Object obj1 = new Object();
            Object obj2 = new Object();
            new Thread(new Runnable() {
                public void run() {
                    synchronized (obj1) {
                        System.out.println("thread1 锁为 obj1");
                        try {
                            Thread.sleep(1000);//为了保证线程thread2启动获得obj2锁
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                        synchronized (obj2) {
                            System.out.println("thread1 锁为 obj2");
                        }
                    }
                }
            }).start();
            new Thread(new Runnable() {
                public void run() {
                    synchronized (obj2) {
                        System.out.println("thread2 锁为 obj2");
                        synchronized (obj1) {
                            System.out.println("thread2 锁为 obj1");
                        }
                    }
                }
            }).start();
        }
    }