【说站】mysql死锁的四个条件

public class DeadLockDemo {
    public static Object one = new Object();
    public static Object two = new Object();
    public static void main(String[] args) {
        new Thread(() -> {
         //获取第一个锁，并且不会被其他线程抢占
            synchronized (one) {
                try {
                    System.out.println(Thread.currentThread().getName() + "获得one锁，等待two锁。");
                    //确保第二个线程此时先获取到了第二个锁
                    Thread.sleep(100);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                //请求获取第二锁，并且任然持有第一个锁
                synchronized (two) {
                    System.out.println(Thread.currentThread().getName() + "获得two锁。");
                }
            }
        }).start();
        new Thread(() -> {
            synchronized (two) {
                try {
                    System.out.println(Thread.currentThread().getName() + "获得two锁，等待one锁。");
                    Thread.sleep(100);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                synchronized (one) {
                    System.out.println(Thread.currentThread().getName() + "获得one锁。");
                }
            }
        }).start();
    }
}