docker+zookeeper3.8.0详细部署+部分代码

官网 查看最新版本：

https://zookeeper.apache.org/releases.html

 

docker search zookeeper

 

 docker pull zookeeper:3.8.0

 

 

 mkdir -p /docker/zookeeper3.8.0/data  

docker run -d -p 12181:2181 \
-v /docker/zookeeper3.8.0/data:/data/ \
--name zookeeper3.8.0 --privileged 3bfde2963555

 

 

docker exec -it b080edec92e6 /bin/bash

 

 

 

 客户端：

下载地址：https://issues.apache.org/jira/secure/attachment/12436620/ZooInspector.zip

 

 

 

 

 

 

 

 

 

 <!-- 原生zookeeper -->
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.8.0</version>
        </dependency>

        <!--Apache Curator-->
<!--        <dependency>-->
<!--            <groupId>org.apache.curator</groupId>-->
<!--            <artifactId>curator-framework</artifactId>-->
<!--            <version>2.9.0</version>-->
<!--        </dependency>-->

        <!-- zkclient -->
        <dependency>
            <groupId>com.101tec</groupId>
            <artifactId>zkclient</artifactId>
            <version>0.9</version>
        </dependency>

        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <!-- zookeeper 分布式锁、注意zookeeper版本  这里对应的是3.4.6-->
        <dependency>
            <groupId>org.apache.curator</groupId>
            <artifactId>curator-recipes</artifactId>
            <version>2.10.0</version>
        </dependency>

        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
            <version>5.7.21</version>
        </dependency>

 

package com.jyc;

import java.util.List;
import java.util.Objects;

import cn.hutool.core.util.StrUtil;
import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.CuratorFrameworkFactory;
import org.apache.curator.framework.api.CuratorWatcher;
import org.apache.curator.retry.RetryNTimes;
import org.apache.zookeeper.CreateMode;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.ZooDefs;
import org.apache.zookeeper.data.Stat;

public class ZookeeperTest {
   
    public static void main(String[] args) throws Exception{
       //建立通信通道
        CuratorFramework client = CuratorFrameworkFactory.newClient("49.235.127.115:2181",
                new RetryNTimes(10, 5000));
        client.start();// 建立连接
        // 获取子节点，顺便监控子节点
       /* List<String> children = client.getChildren().usingWatcher(new CuratorWatcher() {
            public void process(WatchedEvent event) throws Exception
            {
                System.out.println("监控： " + event);
            }
        }).forPath("/");
        System.out.println("children = "+children);*/

        // 创建节点
//    String result = client.create().withMode(CreateMode.PERSISTENT).withACL(ZooDefs.Ids.OPEN_ACL_UNSAFE).forPath("/test", "Data".getBytes());
//        String result = client.create().withMode(CreateMode.PERSISTENT).withACL(ZooDefs.Ids.OPEN_ACL_UNSAFE).forPath("/test2", "Data".getBytes());
//
//    System.out.println("result = "+result);
        // 设置节点数据  重复设置相当于更新（数据覆盖）
//        client.setData().forPath("/test", "a".getBytes());
//        client.setData().forPath("/test2", "b".getBytes());

        Stat stat = client.checkExists().forPath("/test");
        //判断节点是否存在 存在就删除 不存在就建立
        if(Objects.isNull(stat)){
            client.create().withMode(CreateMode.PERSISTENT).withACL(ZooDefs.Ids.OPEN_ACL_UNSAFE).forPath("/test", "Data".getBytes());
        }else {
            client.delete().withVersion(-1).forPath("/test");
        }
        client.close();
        System.out.println("end！");
    }
}