配置高可用的springcloud configserver

深碍√TFBOYSˉ_ 2022-04-02 15:48 215阅读 0赞

这两天业余时间学习如何搭建springcloud 高可用的configServer 和client,做些笔记

原理：将我们的configserver和 configclient都注册到eureka上，实现高可用(springboot)

一.创建eureka项目

pom.xml

<dependencies>
    		<dependency>
    			<groupId>org.springframework.cloud</groupId>
    			<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-test</artifactId>
    			<scope>test</scope>
    		</dependency>
    	</dependencies>

2.application.yml

server:
      port: 9010
    
    spring:
      application:
        name: server-eureka
        
    eureka:
      instance:
        hostname: localhost
      client:
        serviceUrl:
          defaultZone: http://localhost:9010/eureka/

3.在启动类上加上@EnableEurekaServer注解

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

二.创建config server

1.pom.xml

<dependencies>
    		<dependency>
    			<groupId>org.springframework.cloud</groupId>
    			<artifactId>spring-cloud-config-server</artifactId>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework.cloud</groupId>
    			<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-test</artifactId>
    			<scope>test</scope>
    		</dependency>
    	</dependencies>

2.application.yml

server:
      port: 10030
      
    spring:
      application:
        name: spring-server
      cloud:
        config:
          server:
            git:
              uri:  git地址
              username: 用户名
              password: 密码
              default-label: master
              search-paths: respo 
              
    eureka: 
      client:
        healthcheck:
          enabled: true
        serviceUrl:
         defaultZone: http://localhost:10010/eureka
      instance:
        prefer-ip-address: true
        instance-id: ${spring.application.name}:${spring.cloud.client.ipAddress}:${spring.application.instance_id:${server.port}}

3.启动类

@SpringBootApplication
    @EnableEurekaClient
    @EnableConfigServer
    public class SpringcloudServer2Application {
    
    	public static void main(String[] args) {
    		SpringApplication.run(SpringcloudServer2Application.class, args);
    	}
    
    }

三.configclient

1.pom.xml

<dependencies>
    		<dependency>
    			<groupId>org.springframework.cloud</groupId>
    			<artifactId>spring-cloud-starter-config</artifactId>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework.cloud</groupId>
    			<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    		</dependency>
    
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-test</artifactId>
    			<scope>test</scope>
    		</dependency>
    	</dependencies>

2.bootstrap.yml

必须是bootstrap.yml而不是application.yml，因为bootstrap文件会优先加载，service-id:是服务端注册到eureka上的application.name的名字

server:
      port: 10040
    spring:
      cloud:
        config:
          #uri: http://localhost:8888
          profile: dev
          label: master   
          discovery:
            enabled: true
            service-id: spring-server
      application:
        name: config-client
    
    eureka: 
      client:
        serviceUrl:
         defaultZone: http://localhost:10010/eureka
      instance:
        prefer-ip-address: true
        instance-id: ${spring.application.name}:${spring.cloud.client.ipAddress}:${spring.application.instance_id:${server.port}}

3.启动类

@SpringBootApplication
    @EnableEurekaClient
    @RestController
    public class SpringcloudConfigclientApplication {
    
    	public static void main(String[] args) {
    		SpringApplication.run(SpringcloudConfigclientApplication.class, args);
    	}
    	
    	@Value("${foo}")
    	String foo;
    	
    	@RequestMapping(value = "/foo")
    	public String hi(){
    		return foo;
    	}
    
    }