zookeeper应用实例

ZooKeeper zk=new ZooKeeper(HOST,CLIENT_SESSION_TIMEOUT,new Watcher(){
            @Override
            public void process(WatchedEvent event) {
                logger.info("---watcher--eventtype=="+event.getType());
            }
        });
    
        //创建持久节点
        if(zk.exists(LEADER_PATH,false)==null){
            zk.create(LEADER_PATH, null,Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
        }
        //创建临时节点
        path=zk.create(LEADER_PATH+"/lock-", null,Ids.OPEN_ACL_UNSAFE, CreateMode.EPHEMERAL_SEQUENTIAL);