Java-Interrupt-中斷信號

1、中斷信號Interrupt

1.如果線程處於阻塞狀態會立馬退出阻塞並拋出InterruptedException異常，線程可以通過捕獲InterruptedException方法來做一定處理，然後讓線程退出。

2.如果線程處於運行中則不受任何影響繼續運行，僅僅將線程的中斷標記設置爲true。

2、示例代碼

public class ThreadInterruptDemo {

	public static void main(String[] args) throws InterruptedException {
		// 模擬正常運行發出中斷信號
		Thread threadOne = new Thread(new Runnable() {
			public void run() {
				Thread currentThread = Thread.currentThread();
				while (!currentThread.isInterrupted()) {
					System.out.println("Thread One 正在運行!");
				}
				System.out.println("Thread One 正常結束!" + currentThread.isInterrupted());
			}
		});
		// 模擬阻塞線程發出中斷信號
		Thread threadTwo = new Thread(new Runnable() {
			public void run() {
				Thread currentThread = Thread.currentThread();
				while (!currentThread.isInterrupted()) {
					synchronized (currentThread) {
						try {
							currentThread.wait();
						} catch (Exception e) {
							e.printStackTrace(System.out);
							System.out.println("Thread Two 由於中斷信號，異常結束!" + currentThread.isInterrupted());
						}
					}
				}
				System.out.println("Thread Two 正常結束!" + currentThread.isInterrupted());
			}
		});
		
		threadOne.start();
		threadTwo.start();
		Thread.sleep(2);
		System.out.println("兩個線程正常運行，現在開始發出中斷信號");
		threadOne.interrupt();
		threadTwo.interrupt();
		
	}
	
}