Spring Cloud Commons 普通抽象

Commons提供@EnableDiscoveryClient注释。这通过META-INF/spring.factories查找DiscoveryClient接口的实现。Discovery Client的实现将在org.springframework.cloud.client.discovery.EnableDiscoveryClient键下的spring.factories中添加一个配置类。DiscoveryClient实现的示例是Spring Cloud Netflix Eureka，Spring Cloud Consul发现和Spring Cloud Zookeeper发现。

默认情况下，DiscoveryClient的实现将使用远程发现服务器自动注册本地Spring Boot服务器。可以通过在@EnableDiscoveryClient中设置autoRegister=false来禁用此功能。

Commons现在提供了一个ServiceRegistry接口，它提供了诸如register(Registration)和deregister(Registration)之类的方法，允许您提供定制的注册服务。Registration是一个标记界面。

@Configuration
@EnableDiscoveryClient(autoRegister=false)
public class MyConfiguration {
    private ServiceRegistry registry;

    public MyConfiguration(ServiceRegistry registry) {
        this.registry = registry;
    }

    // called via some external process, such as an event or a custom actuator endpoint
    public void register() {
        Registration registration = constructRegistration();
        this.registry.register(registration);
    }
}