zookeeper

zookeeper基本概念：zookeeper特性与节点介绍 - 楼上有只喵 (pyr9.github.io)
zookeeper 是一个分布式协调服务，可以用来实现注册中心功能，类似eureka
服务节点是临时结点

springCloud之集成zookeeper

准备工作

启动zookeeper

1.引入依赖

plugins{
	id 'org.springframework.boot' version '2.6.1'
	id 'io.spring.dependency-management' version '1.0.8.RELEASE'
	id 'java'
}

ext {
	set('springCloudVersion', "2021.0.0")
	name = 'Eureka Server'
	description = 'Eureka Server demo project'
	version='0.0.1-SNAPSHOT'
	sourceEncoding='UTF-8'
}

repositories {
	mavenCentral()
	maven { url 'https://repo.spring.io/release/' }
	maven { url "https://repo.spring.io/libs-snapshot-local" }
	maven { url "https://repo.spring.io/libs-milestone-local" }
	maven { url "https://repo.spring.io/libs-release-local" }
	maven { url "https://repo.springsource.org/plugins-release" }
}

dependencyManagement {
	imports {
		mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
	}
}

dependencies {
	implementation 'org.springframework.cloud:spring-cloud-starter-zookeeper-discovery'
	implementation 'org.springframework.boot:spring-boot-starter-web'
}

test{
	useJUnitPlatform()
}

2. 修改配置文件

配置服务的名称和zookeeper的地址

server.port=9091

spring.application.name: micro-weather-zookeeper
spring.cloud.zookeeper.connect-string: localhost:2181

3. 修改启动类

加上@EnableDiscoveryClient注解

package com.pyr.spring.cloud.weather;

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

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