Eureka 笔记

服务端：

创建springBoot 项目

1.步骤 导入在pom.xml中         导入        eureka-server的 jar包

2.步骤 在主方法加注解        @EnableEurekaServer

3. 步骤 在配置config

1.步骤pox.xml:

	4.0.0
	
		org.springframework.boot
		spring-boot-starter-parent
		3.1.3
		 
	

  
  
	com.csdn
	springboot-ms-eureka-server
	0.0.1-SNAPSHOT
	war
	springboot-ms-eureka-server
	eureka服务端
	
		17
		2022.0.4
	
	
		
			org.springframework.boot
			spring-boot-starter-web
		
		
		
			org.springframework.cloud
			spring-cloud-starter-netflix-eureka-server
		

		
			org.springframework.boot
			spring-boot-starter-tomcat
			provided
		
		
			org.springframework.boot
			spring-boot-starter-test
			test
		
	
	
		
			
				org.springframework.cloud
				spring-cloud-dependencies
				${spring-cloud.version}
				pom
				import
			
		
	

	
		
			
				org.springframework.boot
				spring-boot-maven-plugin
			
		
	

2.步骤 :加注解@EnableEurekaServer

package com.csdn;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;


@SpringBootApplication
@EnableEurekaServer //2步骤 加注解@EnableEurekaServer
public class MainApplication {

	public static void main(String[] args) {
		SpringApplication.run(MainApplication .class, args);
	}

}

3. 步骤 : resources/application.properties 进行配置

# 3. 步骤config 配置
#eureka服务端应用的端口默认是8761
server.port=9000
#表示是否将自己注册到Eureka Server,默认为true,由于当前应用就是Eureka Server,故而设为false
eureka.client.register-with-eureka=false
# 表示是否从Eureka Server获取注册信息,默认为true,因为这是一个单点的Eureka Server,不需要同步其他的Eureka Server节点的数据,故而设为false
eureka.client.fetch-registry=false
#暴露给其他eureka client客户端 的注册地址
eureka.client.service-url.defaultZone: http://localhost:9000/eureka/

客户端：

1.步骤 导入在pom.xml中         导入        eureka-client的 jar包

 
        
            org.springframework.cloud
            spring-cloud-starter-netflix-eureka-client
        

2. 步骤 : resources/application.properties 进行配置

# 3. 步骤config 配置
server.port=8001
#注册到eureka服务端的微服务名称
spring.application.name=ms-consumer-user
#注册到eureka服务端的地址
eureka.client.service-url.defaultZone=http://localhost:9000/eureka/
#点击具体的微服务，右下角是否显示ip
eureka.instance.prefer-ip-address=true
#显示微服务的名称
eureka.instance.instance-id=ms-consumer-user-8001

URL访问地址：http://localhost:9000/

Operation	HTTP action	Description
Register new application instance	POST /eureka/v2/apps/appID	Input: JSON/XMLpayload HTTP Code: 204 on success
De-register application instance	DELETE /eureka/v2/apps/appID/instanceID	HTTP Code: 200 on success
Send application instance heartbeat	PUT /eureka/v2/apps/appID/instanceID	HTTP Code: * 200 on success * 404 if instanceIDdoesn’t exist
Query for all instances	GET /eureka/v2/apps	HTTP Code: 200 on success Output: JSON/XML
Query for all appIDinstances	GET /eureka/v2/apps/appID	HTTP Code: 200 on success Output: JSON/XML
Query for a specific appID/instanceID	GET /eureka/v2/apps/appID/instanceID	HTTP Code: 200 on success Output: JSON/XML
Query for a specific instanceID	GET /eureka/v2/instances/instanceID	HTTP Code: 200 on success Output: JSON/XML
Take instance out of service	PUT /eureka/v2/apps/appID/instanceID/status?value=OUT_OF_SERVICE	HTTP Code: * 200 on success * 500 on failure
Move instance back into service (remove override)	DELETE /eureka/v2/apps/appID/instanceID/status?value=UP (The value=UP is optional, it is used as a suggestion for the fallback status due to removal of the override)	HTTP Code: * 200 on success * 500 on failure
Update metadata	PUT /eureka/v2/apps/appID/instanceID/metadata?key=value	HTTP Code: * 200 on success * 500 on failure
Query for all instances under a particular vip address	GET /eureka/v2/vips/vipAddress	* HTTP Code: 200 on success Output: JSON/XML  * 404 if the vipAddress does not exist.
Query for all instances under a particular secure vip address	GET /eureka/v2/svips/svipAddress	* HTTP Code: 200 on success Output: JSON/XML  * 404 if the svipAddress does not exist.