观测线程状态
thread线程状态
- NEW
- 尚未启动的线程处于此状态
- RUNNABLE
- 在java虚拟机中执行的线程处于此状态
- BLOCKED
- 被阻塞等待监听器锁定的线程处于此状态
- WAITING
- 正在等待另一个线程执行特定动作的线程处于此状态
- TIMED_WAITING
- 正在等待另一个线程执行动作到达指定等待时间的线程处于此状态
- TERMINATED
- 已退出的线程处于此状态
public enum State {
NEW,
RUNNABLE,
BLOCKED,
WAITING,
TIMED_WAITING,
TERMINATED;
}
/**
*观察测试线程的状态
*/
public class TestThreadState {
public static void main(String[] args) {
Thread thread = new Thread(() -> {
for (int i = 0; i < 10; i++) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("////////");
}
}, "观测线程");
// 观察状态 NEW
System.out.println(thread.getState());
// 观察启动后
thread.start();
// RUNNABLE
System.out.println(thread.getState());
// 线程不终止一直输出状态
while (thread.getState() != Thread.State.TERMINATED) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
// TIMED_WAITING
System.out.println(thread.getState());
}
//TERMINATED
System.out.println(thread.getState());
}
}
参考资料：