public synchronized void lock(long millis) throws InterruptedException, TimeoutException { long base = System.currentTimeMillis(); long now = 0; waitQueue.add(Thread.currentThread()); while (isSync) { now = System.currentTimeMillis() - base; if (now >= millis) { // 这里是否应该添加 waitQueue.remove(Thread.currentThread) throw new TimeoutException(); } this.wait(millis); } waitQueue.remove(Thread.currentThread()); currentThread = Thread.currentThread(); isSync = true; System.out.println(Thread.currentThread().getName() + " get the lock"); }如果在规定等待时间内没有获得lock，抛出timeout异常的时候，应该在list中remove掉对应的thread对象