Java 线程死锁的问题解决办法
发布时间:2020-12-14 22:27:17 所属栏目:Java 来源:网络整理
导读:Java 线程死锁的问题解决办法 【线程死锁】 原因:两个线程相互等待被对方锁定的资源 代码模拟: public class DeadLock { public static void main(String[] args) { Object obj = new Object(); Object obj1 = new Object(); DeadLockThread1 D1 = new Dea
Java 线程死锁的问题解决办法 【线程死锁】 原因:两个线程相互等待被对方锁定的资源 代码模拟: public class DeadLock { public static void main(String[] args) { Object obj = new Object(); Object obj1 = new Object(); DeadLockThread1 D1 = new DeadLockThread1(obj,obj1); DeadLockThread2 D2 = new DeadLockThread2(obj,obj1); new Thread(D1,"线程1").start(); new Thread(D2,"线程2").start(); } } class DeadLockThread1 implements Runnable { private Object obj; private Object obj1; public DeadLockThread1(Object obj,Object obj1) { this.obj = obj; this.obj1 = obj1; } @Override public void run() { synchronized (obj) { //DeadLockThread1锁定obj对象 try { Thread.sleep(1000); synchronized (obj1) { //等待锁定obj1对象,obj对象已被DeadLockThread2锁定 obj1.getClass(); } } catch (InterruptedException e) { e.printStackTrace(); } } } } class DeadLockThread2 implements Runnable { private Object obj; private Object obj1; public DeadLockThread2(Object obj,Object obj1) { this.obj = obj; this.obj1 = obj1; } @Override public void run() { synchronized (obj1) { //DeadLockThread2锁定obj2对象 try { Thread.sleep(1000); synchronized (obj) { //等待锁定obj对象,obj对象已被DeadLockThread1锁定 obj.getClass(); } } catch (InterruptedException e) { e.printStackTrace(); } } } } 查看方式: 1、【cmd】下输入【jconsole】 2、选择测试线程并点击右下角【连接】,左上角选择【线程】,左下角选择【检测死锁】 如有疑问请留言或者到本站社区交流讨论,感谢阅读,希望通过本文能帮助到大家,谢谢大家对本站的支持! (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |