我的java客户端连接不上zookeeper

# 具体遇到的问题
我的linux下的zookeeper是开启的，代码为

ZooKeeper JMX enabled by default

Using config: /root/apache-zookeeper-3.6.0-bin/bin/../conf/zoo.cfg

Starting zookeeper ... already running as process 2921.

首先一个问题是，我为什么开启linux的进程为2921。

我的客户端显示

10:23:32 INFO zookeeper.ZooKeeper: Client environment:os.memory.free=114MB

10:23:32 INFO zookeeper.ZooKeeper: Client environment:os.memory.max=1797MB

10:23:32 INFO zookeeper.ZooKeeper: Client environment:os.memory.total=123MB

10:23:32 INFO zookeeper.ZooKeeper: Initiating client connection, connectString=127.0.0.1:2921 sessionTimeout=10000 watcher=com.imooc.zkjavaapi.ZkConnect@5ef04b5

10:23:32 INFO common.X509Util: Setting -D jdk.tls.rejectClientInitiatedRenegotiation=true to disable client-initiated TLS renegotiation

10:23:36 INFO zookeeper.ClientCnxnSocket: jute.maxbuffer value is 1048575 Bytes

10:23:36 INFO zookeeper.ClientCnxn: zookeeper.request.timeout value is 0. feature enabled=false

客户端开始连接ZK服务器了

CONNECTING

10:23:36 INFO zookeeper.ClientCnxn: Opening socket connection to server activate.navicat.com/127.0.0.1:2921.

10:23:36 INFO zookeeper.ClientCnxn: SASL config status: Will not attempt to authenticate using SASL (unknown error)

CONNECTING

Process finished with exit code 0

我用的是本机，IP地址为192.168.139.128，所以我尝试用他来取代127.0.0.1，还是没用

:30:02 INFO zookeeper.ZooKeeper: Client environment:os.memory.free=113MB

10:30:02 INFO zookeeper.ZooKeeper: Client environment:os.memory.max=1797MB

10:30:02 INFO zookeeper.ZooKeeper: Client environment:os.memory.total=123MB

10:30:02 INFO zookeeper.ZooKeeper: Initiating client connection, connectString=192.168.139.128:2921 sessionTimeout=10000 watcher=com.imooc.zkjavaapi.ZkConnect@5ef04b5

10:30:02 INFO common.X509Util: Setting -D jdk.tls.rejectClientInitiatedRenegotiation=true to disable client-initiated TLS renegotiation

10:30:05 INFO zookeeper.ClientCnxnSocket: jute.maxbuffer value is 1048575 Bytes

10:30:05 INFO zookeeper.ClientCnxn: zookeeper.request.timeout value is 0. feature enabled=false

客户端开始连接ZK服务器了

CONNECTING

CONNECTING

Process finished with exit code 0

我在linux系统下连接得好好的，但是在java客户端就不行了。都是3.6.0，版本也没错啊。

# 报错信息的截图

# 相关课程内容截图

# 尝试过的解决思路和结果

# 粘贴全部相关代码，切记添加代码注释（请勿截图）

在这里输入代码，可

package com.imooc.zkjavaapi;

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

import java.io.IOException;

/**
 * 连接到ZK服务端，打印连接状态
 */
public class ZkConnect implements Watcher {

    public static final String SERVER_PATH= "192.168.139.128:2921";

    public static final Integer TimeOUT = 10000;

    public static void main(String[] args) throws IOException, InterruptedException {
        /**
         * 客户端和服务端是异步连接，连接成功后，客户端会收到Watcher通知。
         * connectString：服务器的ip+端口号，比如127.0.0.1:2181
         */
        ZooKeeper zooKeeper = new ZooKeeper(SERVER_PATH, TimeOUT, new ZkConnect());
        System.out.println("客户端开始连接ZK服务器了");
        System.out.println(zooKeeper.getState());
        Thread.sleep(2000);
        System.out.println(zooKeeper.getState());
    }

    public void process(WatchedEvent watchedEvent) {
        System.out.println("收到了通知" + watchedEvent);
    }
}

log4j.rootLogger=INFO, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{HH:mm:ss} %p %c{2}: %m%n

​<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>zk-practice</artifactId>
    <version>1.0-SNAPSHOT</version>

    <repositories>
        <repository>
            <id>nexus-aliyun</id>
            <name>Nexus aliyun</name>
            <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
            <layout>default</layout>
            <releases>
                <enabled>true</enabled>
            </releases>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>

    <dependencies>
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.6.0</version>
        </dependency>
    </dependencies>
</project>