示例如下：
public void rendezvousEvent(RendezvousEvent event) {
if (event.getType() == RendezvousEvent.RDVCONNECT || event.getType() == RendezvousEvent.RDVRECONNECT || event.getType() == RendezvousEvent.BECAMERDV) {
synchronized (networkConnectLock) {
//同步资源，也就是锁定了
connected = true;
networkConnectLock.notifyAll(); //唤醒其他阻塞线程，也就是解锁了
}
}
}