概述

lockInterruptibly()方法比較特殊，當(dāng)通過(guò)這個(gè)方法去獲取鎖時(shí)，如果其他線(xiàn)程正在等待獲取鎖，則這個(gè)線(xiàn)程能夠響應(yīng)中斷，即中斷線(xiàn)程的等待狀態(tài)。也就使說(shuō)，當(dāng)兩個(gè)線(xiàn)程同時(shí)通過(guò)lock.lockInterruptibly()想獲取某個(gè)鎖時(shí)，假若此時(shí)線(xiàn)程A獲取到了鎖，而線(xiàn)程B只有等待，那么對(duì)線(xiàn)程B調(diào)用threadB.interrupt()方法能夠中斷線(xiàn)程B的等待過(guò)程。

【注意是：等待的那個(gè)線(xiàn)程B可以被中斷，不是正在執(zhí)行的A線(xiàn)程被中斷】

代碼

有關(guān)線(xiàn)程中斷的請(qǐng)見(jiàn)：http://blog.csdn.net/zengmingen/article/details/53259966
BussinessClass 業(yè)務(wù)類(lèi)代碼
package multithreading.lock;import java.util.concurrent.locks.Lock; import java.util.concurrent.locks.ReentrantLock;public class BussinessClass {private Lock lock = new ReentrantLock();// 業(yè)務(wù)方法public void bFuction() {String tName = Thread.currentThread().getName();try {System.out.println(tName + "-開(kāi)始獲取鎖..........");lock.lockInterruptibly();System.out.println(tName + "-獲取到鎖了！！！！");System.out.println(tName + "-睡覺(jué)了，睡個(gè)30秒！");Thread.sleep(30000);System.out.println(tName + "-睡醒了，干活！");for (int i = 0; i < 5; i++) {System.out.println(tName + "：" + i);}} catch (Exception e) {System.out.println(tName+"-我好像被中斷了！");e.printStackTrace();}finally{lock.unlock();System.out.println(tName + "-釋放了鎖");}}}
測(cè)試類(lèi)
package multithreading.lock;import org.junit.Test;public class TestInterruptibly {@Testpublic void testInterruptibly() throws Exception{BussinessClass bc=new BussinessClass();Thread t0=new Thread(){@Overridepublic void run() {bc.bFuction();}};Thread t1=new Thread(){@Overridepublic void run() {bc.bFuction();}};String tName=Thread.currentThread().getName();System.out.println(tName+"-啟動(dòng)t0！");t0.start();System.out.println(tName+"-我等個(gè)5秒，再啟動(dòng)t1");Thread.sleep(5000);System.out.println(tName+"-啟動(dòng)t1");t1.start();System.out.println(tName+"-t1獲取不到鎖，t0這貨睡覺(jué)了，沒(méi)釋放，我等個(gè)5秒！");Thread.sleep(5000);System.out.println(tName+"-等了5秒了，不等了，把t1中斷了！");t1.interrupt();Thread.sleep(Long.MAX_VALUE);}}
運(yùn)行結(jié)果
main-啟動(dòng)t0！
main-我等個(gè)5秒，再啟動(dòng)t1
Thread-0-開(kāi)始獲取鎖..........
Thread-0-獲取到鎖了！！！！
Thread-0-睡覺(jué)了，睡個(gè)30秒！
main-啟動(dòng)t1
main-t1獲取不到鎖，t0這貨睡覺(jué)了，沒(méi)釋放，我等個(gè)5秒！
Thread-1-開(kāi)始獲取鎖..........
main-等了5秒了，不等了，把t1中斷了！
java.lang.InterruptedException
Thread-1-我好像被中斷了！
at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireInterruptibly(Unknown Source)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireInterruptibly(Unknown Source)
at java.util.concurrent.locks.ReentrantLock.lockInterruptibly(Unknown Source)
at multithreading.lock.BussinessClass.bFuction(BussinessClass.java:15)
at multithreading.lock.TestInterruptibly$2.run(TestInterruptibly.java:23)
Exception in thread "Thread-1" java.lang.IllegalMonitorStateException
at java.util.concurrent.locks.ReentrantLock$Sync.tryRelease(Unknown Source)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.release(Unknown Source)
at java.util.concurrent.locks.ReentrantLock.unlock(Unknown Source)
at multithreading.lock.BussinessClass.bFuction(BussinessClass.java:28)
at multithreading.lock.TestInterruptibly$2.run(TestInterruptibly.java:23)
Thread-0-睡醒了，干活！
Thread-0：0
Thread-0：1
Thread-0：2
Thread-0：3
Thread-0：4
Thread-0-釋放了鎖

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