第一步：引入依赖 pom.xml
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <parent> <artifactId>springcloud_myproject</artifactId> <groupId>com.idea</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>springcloud_provider</artifactId> <packaging>war</packaging> <name>springcloud_provider Maven Webapp</name> <!-- FIXME change it to the project's website --> <url>http://www.example.com</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.7</maven.compiler.source> <maven.compiler.target>1.7</maven.compiler.target> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <!--eureka server--> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka-server</artifactId> </dependency> <!-- spring boot test--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> </dependencies> <build> <finalName>springcloud_provider</finalName> </build> </project>第二步：创建入口类 @EnableDiscoveryClient与@EnableEurekaClient完成功能一直都是代表注册中心的客户端 唯一区别：@EnableEurekaClient只能用于eurekaServer的注册中心，@EnableDiscoveryClient能用于任何的注册中心（推荐使用）
@SpringBootApplication @EnableDiscoveryClient public class HelloApplication { public static void main(String[] args) { SpringApplication.run(HelloApplication.class,args); } }第三步：application.yml
server: port: 8088 spring: application: name: hello-client eureka: client: service-url: defaultZone: http://localhost:8761/eureka/ #将服务注册到注册中心第四步：创建controlle类进行服务的调用
@RestController @RequestMapping("/user") public class HelloController { @Value("${server.port}")//通过配置文件配置的全局变量 用@Value注解 private String port; @RequestMapping("/hello") public String helloController(@RequestParam String name){ return "hello:"+name+"=====你好:"+port; } }启动注册中心，可以看到服务已经注册到注册中心了 访问controller可以看到如下内容：
