SpringCloud学习二：zookeeper注册中心（代替eureka）

雨点打透心脏的1/2处 2023-07-23 06:00 24阅读 0赞

## 一、下载安装zookeeper ##

1.1、下载

安装教程：[https://blog.csdn.net/ring300/article/details/80446918][https_blog.csdn.net_ring300_article_details_80446918]

官方下载地址：[https://zookeeper.apache.org/releases.html\#download][https_zookeeper.apache.org_releases.html_download]

![20200408171626431.png][]

1.2、推荐下载3.4.12版本

1.3、查看jdk环境变量是否正常（cmd→java -version）

![20200503192140344.png][]

1.4、修改zkEnv.cmd中的路径（这步可以跳过直接进入1.5 || 两部二选一）

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1.5、修改路径

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 1][]

1.6、启动zkServer.cmd

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 2][]

[Windows下Zookeeper启动zkServer.cmd闪退问题的解决方案][Windows_Zookeeper_zkServer.cmd]

注：1.[zkServer.cmd闪退可以在zkServer.cmd里面添加 pause][zkServer.cmd_zkServer.cmd_pause]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 3][]

注：2.[zookeeper-3.5.5安装报错：找不到或无法加载主类 org.apache.zookeeper.server.quorum.QuorumPeerMain][zookeeper-3.5.5_ org.apache.zookeeper.server.quorum.QuorumPeerMain]

解决方法：在目录中添加zookeeper-3.4.12.jar包

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 4][]

## 二、可视化工具（ZooInspector）下载和配置 ##

2.1、下载地址：[https://issues.apache.org/jira/secure/attachment/12436620/ZooInspector.zip][https_issues.apache.org_jira_secure_attachment_12436620_ZooInspector.zip]

2.2、配置：[https://blog.csdn.net/wang1988081309/article/details/90723345][https_blog.csdn.net_wang1988081309_article_details_90723345]

2.3、启动：在可视化工具中cmd  →  **java -jar zookeeper-dev-ZooInspector.jar**

# ========== 以上服务端 ========== #

# ========== 以下客户端（项目中） ========== #

## 三、springcloud配置zookeeper ##

[SpringCloud 整合zookeeper搭建服务注册中心][SpringCloud _zookeeper]

[SpringCloud搭建zookeeper jar包冲突][SpringCloud_zookeeper jar]

3.1、注意jar包的版本对应

3.2、创建项目，导入jar包

<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-web</artifactId>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework.cloud</groupId>
    			<artifactId>spring-cloud-starter-zookeeper-discovery</artifactId>
    			<exclusions>
    				
    				<exclusion>
    					<groupId>org.apache.zookeeper</groupId>
    					<artifactId>zookeeper</artifactId>
    				</exclusion>
    			</exclusions>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.apache.zookeeper</groupId>
    			<artifactId>zookeeper</artifactId>
    			<version>3.4.6</version>
    		</dependency>

3.3、xml文件配置

server.port=8010
    spring.application.name=zk-register
    spring.cloud.zookeeper.connect-string=127.0.0.1:2181

3.4、启动类

package com.example;
    
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    import java.util.Date;
    
    @RestController
    @SpringBootApplication
    @EnableDiscoveryClient
    public class SpringCloudZookeepreApplication {
    
    	@Value("${server.port}")
    	private String serverPort;
    
    	@GetMapping("/getZookeeper")
    	public String getZookeeper(){
    		return "zookeeper输出结果： "+serverPort+"  "+new Date().getTime();
    	}
    
    	public static void main(String[] args) {
    		SpringApplication.run(SpringCloudZookeepreApplication.class, args);
    	}
    
    }

## 四、zookeeper中的DiscoveryClient ##

4.1、在controller中添加以下代码，

@RequestMapping("/discoveryMember")
        public List<ServiceInstance> discoveryMember() {
            List<ServiceInstance> instances = discoveryClient.getInstances("zk-member");
            for (ServiceInstance serviceInstance : instances) {
                System.out.println("url"+serviceInstance.getUri());
            }
            return instances;
        }

4.2、访问后

![format_png][]

[https_blog.csdn.net_ring300_article_details_80446918]: https://blog.csdn.net/ring300/article/details/80446918
[https_zookeeper.apache.org_releases.html_download]: https://zookeeper.apache.org/releases.html#download
[20200408171626431.png]: /images/20230528/fc7ba38679274313b074583d6a7cd628.png
[20200503192140344.png]: /images/20230528/c3297caf82044f769ac5eab3f225e2f3.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70]: /images/20230528/ec66cfa3a50e41ceb642e886e665cea7.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 1]: /images/20230528/ee27d7086f4e4d118d964b0970021970.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 2]: /images/20230528/f056678559a942499688c93b860a34f4.png
[Windows_Zookeeper_zkServer.cmd]: https://blog.csdn.net/qq_28081081/article/details/81332746
[zkServer.cmd_zkServer.cmd_pause]: https://blog.csdn.net/qq279862451/article/details/79083522
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 3]: /images/20230528/23679fdb6a3f407bb33a4466bab67c0b.png
[zookeeper-3.5.5_ org.apache.zookeeper.server.quorum.QuorumPeerMain]: https://www.cnblogs.com/zhoading/p/11593972.html
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzE2OTQ2ODAz_size_16_color_FFFFFF_t_70 4]: /images/20230528/41f2bb6feb5041b1ae22dc5270524d3e.png
[https_issues.apache.org_jira_secure_attachment_12436620_ZooInspector.zip]: https://issues.apache.org/jira/secure/attachment/12436620/ZooInspector.zip
[https_blog.csdn.net_wang1988081309_article_details_90723345]: https://blog.csdn.net/wang1988081309/article/details/90723345
[SpringCloud _zookeeper]: https://my.oschina.net/u/3677987/blog/3210201/print
[SpringCloud_zookeeper jar]: https://blog.csdn.net/qq_16946803/article/details/105403522
[format_png]: /images/20230528/7215ae26e9394eb7b7c11c40c2fd3202.png