Eureka源码

@EnableEurekaClient再往下是@EnableDiscoveryClient，打开是@Import(EnableDiscoveryClientImportSelector.class)，selectImports方法在SpringFactoryImportSelector中，去找spring-cloud-netflix-eureka-client-1.2.7.RELEASE.jar里面的spring.factories的org.springframework.cloud.client.discovery.EnableDiscoveryClien的值，org.springframework.cloud.netflix.eureka.EurekaDiscoveryClientConfiguration，import这个类。