Registration services to the service center (Consul)

Add rely POM file

Add the following dependence in POM file:

                <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-consul-discovery</artifactId>
            <version>2.1.3.RELEASE</version>
        </dependency>

spring-boot-starter-actuator responsible for health checks, spring-cloud-starter-consul -discovery responsible for the support of the Consul.
The version number must be clearly referenced in the spring-cloud-starter-consul- discovery, BOOT version of our project is 2.1.8.RELEASE, spring-cloud-starter- consul-discovery version number is 2.1.3.RELEASE, can Spring Cloud's official website found.
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DependencyManagement manage or use the version number, add the following in the POM file can not indicate the version number of spring-cloud-starter-consul-discovery of:

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Greenwich.SR3</spring-cloud.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
    
    <dependencies>

        .....

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

        .....

    </dependencies>

Profiles

spring.application.name=spring-cloud-provider-01
server.port=9000
spring.cloud.consul.host=localhost
#consul端口可以自行修改
spring.cloud.consul.port=8500
#注册到consul的服务名称
spring.cloud.consul.discovery.serviceName=service-provider

Startup class

SpringCloudProviderApplication.java

@SpringBootApplication
//支持服务发现
@EnableDiscoveryClient
public class SpringCloudProviderApplication {

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

}

Start Service

Automatically start the service after the completion of the process of registration service, return to consul control interface can see the good service has been registered:
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Click service-provider can see that the service is only a micro service:

Load Balancing

We refer spring-cloud-provider program in a micro-replication services spring-cloud-provider-second, and HelloWorld class is modified to distinguish:
spring-cloud-provider project HelloWorld class:

@RestController
public class HelloWorld {

    @RequestMapping("/hello")
    public String Hello(@RequestParam String name){
        return "你好！" + name + ",这是第一个微服务。";
    }
}

spring-cloud-provider-second project HelloWorld class:

@RestController
public class HelloWorld {

    @RequestMapping("/hello")
    public String Hello(@RequestParam String name){
        return "你好！" + name + ",这是第二个微服务。";
    }
}

Modify spring-cloud-provider-second project of the port number:
spring-cloud-provider-second project application.properties contents of the file:

spring.application.name=spring-cloud-provider-02
server.port=9001
spring.cloud.consul.host=localhost
spring.cloud.consul.port=8500
#注册到consul的服务名称
spring.cloud.consul.discovery.serviceName=service-provider

Start spring-cloud-provider-second project, view the service-provider service providers have emerged two service providers:
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Source

Github repository: https: //github.com/sunweisheng/spring-cloud-example