Zookeeper的API操作

 public static void main(String[] args) throws Exception {
    
    
        //创建zk对象
        ZooKeeper zk = new ZooKeeper("node01:2181,node02:2181,node03:2181", 10000, new Watcher() {
    
    
            @Override
            public void process(WatchedEvent watchedEvent) {
    
    
                System.out.println("监听的路径："+watchedEvent.getPath());
                System.out.println("监听的类型："+watchedEvent.getType());
                System.out.println("监听的状态："+watchedEvent.getState());
            }
        });
     	//1、创建zk节点
	        //PERSISTENT：永久节点
        zk.create("路径", "数据".getBytes(), ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
            //EPHEMERAL：临时节点
        zk.create("路径", "数据".getBytes(), ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.EPHEMERAL);
	        //PERSISTENT_SEQUENTIAL：有序永久节点
        zk.create("路径", "数据".getBytes(), ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT_SEQUENTIAL);
            //EPHEMERAL_SEQUENTIAL：有序临时节点
        zk.create("路径", "数据".getBytes(), ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.EPHEMERAL_SEQUENTIAL);
        //2、查看节点数据
        System.out.println(new String(zk.getData("路径", false, null)));
        //3、修改节点数据
        zk.setData("路径", "数据".getBytes(), -1);
        //4.删除节点数据
        zk.delete("路径", -1);
        //关闭zk
        zk.close();
}