zookeeper递归删除所有节点

最新推荐文章于 2023-08-09 19:25:46 发布

TStana

最新推荐文章于 2023-08-09 19:25:46 发布

阅读量1.2w

点赞数 1

CC 4.0 BY-SA版权

分类专栏： zookeeper 文章标签： zookeeper 递归删除节点

本文链接：https://blog.youkuaiyun.com/TStana/article/details/74201639

zookeeper 专栏收录该内容

1 篇文章

订阅专栏

本文详细介绍了在Zookeeper中如何递归删除包括其所有子节点在内的一个节点，涵盖了操作步骤和注意事项，帮助用户彻底清理Zookeeper的数据结构。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

package mq;

import java.io.IOException;
import java.util.List;

import org.apache.zookeeper.KeeperException;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;
import org.apache.zookeeper.ZooKeeper;


public class ZookeeperNodesDelete{


    /**
     * 递归删除zookeeper非空节点
     *
     * @param zk
     * @param nodeStr
     * @throws IOException
     * @throws KeeperException
     * @throws InterruptedException
     */
    public static void deleteSubNode(ZooKeeper zk, String nodeStr) throws IOException, KeeperException, InterruptedException {
        String nodePath = nodeStr;
        //打印当前节点路径
        System.out.println("Node Path >>>>>>>>> [" + nodePath + " ]");
        if (zk.getChildren(nodePath, false).size() == 0) {
            //删除节点
            System.out.println("Deleting Node Path >>>>>>>>> [" + nodePath + " ]");
            //  zk.delete(nodePath,-1);
        } else {
            //递归查找非空子节点
            List<String> list = zk.getChildren(nodeStr, true);
            for (String str : list) {
                deleteSubNode(zk, nodePath + "/" + str);
            }
        }
    }

    public static void main(String[] args) throws IOException, KeeperException, InterruptedException {
        String parentNodePath = "/dubbo";
        ZooKeeper zk = new ZooKeeper("117.78.51.168:" + 2181, 3000,
                new Watcher() {
                    // 监控所有被触发的事件
                    public void process(WatchedEvent event) {
                        System.out.println("已经触发了" + event.getType() + "事件！");
                    }
                });

        //递归删除节点所有子节点
        deleteSubNode(zk, parentNodePath);
        // 关闭zk连接
        zk.close();
    }

}