SpringCloud 实战九：zookeeper注册中心

docker安装zookeeper

• docker pull zookeeper

• docker run --privileged=true -d --name zookeeper --publish 2181:2181 -d zookeeper:latest
  

1、创建模块cloud-payment-8004

2、设置pom

<?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">
    <parent>
        <artifactId>cloud2020</artifactId>
        <groupId>com.laoxu.springcloud</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>cloud-provider-payment8004</artifactId>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-zookeeper-discovery</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.laoxu.springcloud</groupId>
            <artifactId>cloud-api-common</artifactId>
            <version>1.0-SNAPSHOT</version>
            <scope>compile</scope>
        </dependency>
    </dependencies>

</project>

3、配置注册进远程zookeeper

server:
  port: 8004

spring:
  application:
    name: cloud-provider-payment
  cloud:
    zookeeper:
      connect-string: 47.244.153.137:2181

4、创建启动类

package com.laoxu.springcloud;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

@SpringBootApplication
@EnableDiscoveryClient
public class PaymentMain8004 {
    public static void main(String[] args) {
        SpringApplication.run(PaymentMain8004.class, args);
    }
}

5、启动8004服务

6、查看服务器zookeeper

进入容器的执行命令：

• docker exec -it zookeeper zkCli.sh
• [zk: localhost:2181(CONNECTED) 0] ls /
• [services, zookeeper]
• [zk: localhost:2181(CONNECTED) 2] ls /services
• [cloud-provider-payment]

可以看到8004的application.name，表示注册成功！

查看注册服务信息：

• [zk: localhost:2181(CONNECTED) 3] ls /services/cloud-provider-payment
• [0b4fd6e6-802c-4fed-9a6b-a4fb4450094f]
• [zk: localhost:2181(CONNECTED) 4] ls /services/cloud-provider-payment/0b4fd6e6-802c-4fed-9a6b-a4fb4450094f
• []
• [zk: localhost:2181(CONNECTED) 5] get /services/cloud-provider-payment/0b4fd6e6-802c-4fed-9a6b-a4fb4450094f
• {"name":"cloud-provider-payment","id":"0b4fd6e6-802c-4fed-9a6b-a4fb4450094f","address":"XSJ-2005","port":8004,"sslPort":null,"payload":{"@class":"org.springframework.cloud.zookeeper.discovery.ZookeeperInstance","id":"application-1","name":"cloud-provider-payment","metadata":{}},"registrationTimeUTC":1598709293577,"serviceType":"DYNAMIC","uriSpec":{"parts":[{"value":"scheme","variable":true},{"value":"://","variable":false},{"value":"address","variable":true},{"value":":","variable":false},{"value":"port","variable":true}]}}
• [zk: localhost:2181(CONNECTED) 6]

json串就是注册服务的节点信息