Java多线程问题：死锁案例解析-蒲公英云

Java多线程问题：死锁案例解析

在Java编程中，死锁是一种严重的多线程问题。当两个或更多的线程在执行过程中因争夺资源而造成的一种相互等待的现象时，就会发生死锁。

下面是一个经典的Java死锁案例：

class DeadlockExample {
    private Object lock1 = new Object();
    private Object lock2 = new Object();
    // 线程A获取lock1
    void threadA() {
        synchronized (lock1) {
            System.out.println("Thread A: Acquiring lock 1");
            // 等待获取锁2
            synchronized (lock2) {
                System.out.println("Thread A: Acquiring lock 2");
            }
        }
    }
    // 线程B获取lock2
    void threadB() {
        synchronized (lock2) {
            System.out.println("Thread B: Acquiring lock 2");
            // 等待获取锁1
            synchronized (lock1) {
                System.out.println("Thread B: Acquiring lock 1");
            }
        }
    }
    public static void main(String[] args) {
        DeadlockExample example = new DeadlockExample();
        Thread threadA = new Thread(example::threadA));
        Thread threadB = new Thread(example::threadB));
        threadA.start();
        threadB.start();
        // 线程等待，直到资源获取
        try {
            threadA.join();
            threadB.join();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}