spring cloud（一）服务注册与发现 Eureka||Consul

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Spring Cloud Eureka

server:

pom.xml:

<dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-eureka-server</artifactId>
    </dependency>

通过@EnableEurekaServer注解启动一个服务注册中心

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

application.yml:

server:
  port: 8888
eureka:
  server:
    #开启自我保护
    enable-self-preservation: true
  instance:
    #以IP地址注册
    preferIpAddress: true
    hostname: ${spring.cloud.client.ipAddress}
    instanceId: ${spring.cloud.client.ipAddress}:${server.port}
  client:
    registerWithEureka: false
    fetchRegistry: false
    serviceUrl:
      defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/

client:

pom.xml:

<dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-eureka</artifactId>
    </dependency>

应用主类中通过加上@EnableEurekaClient注解，启用服务发现（@EnableDiscoveryClient亦可）：

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

application.yml:

eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8888/eureka/

地址对应即可。

Spring Cloud Consul

server：

consul服务器安装详见我其他博客：传送门

client：

pom.xml:

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-consul-discovery</artifactId>
</dependency>

应用主类中通过加上@EnableDiscoveryClient注解，启用服务发现：

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

application.yml:

spring:
  application:
    name: applicationName
  cloud:
    consul:
      host: localhost
      port: 8500
      discovery:
        serviceName: ${spring.application.name} # 注册到consul的服务名称