<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">
 <modelVersion>4.0.0</modelVersion>
 <groupId>com.jalja.org</groupId>
 <artifactId>spring-consumer-server-ribbon</artifactId>
 <version>0.0.1-SNAPSHOT</version>
 
  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.2.RELEASE</version>
  </parent>
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
  </properties>
  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-dependencies</artifactId>
        <version>Camden.SR4</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
    </dependencies>
  </dependencyManagement>
  <dependencies>
     <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-ribbon</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
  </dependencies>
  
</project>

stores:
 ribbon:
  listOfServers: www.baidu.com,www.jalja.org,www.163.com

@SpringBootApplication
@EnableDiscoveryClient
@RestController
public class SpringCloudRibbonApplication {
  public static void main(String[] args) {
    SpringApplication.run(SpringCloudRibbonApplication.class, args);
  }
  @Autowired
  private LoadBalancerClient loadBalancer;
  @RequestMapping(value="static")
  public String staticRibbon(){
     ServiceInstance instance = loadBalancer.choose("stores");
     URI storesUri = URI.create(String.format("http://%s:%s", instance.getHost(), instance.getPort()));
     System.out.println(storesUri);
    return "static";
  }
}

连续请求6次执行结果：

http://www.baidu.com:80
http://www.jalja.org:80
http://www.163.org:80
http://www.baidu.com:80
http://www.jalja.org:80
http://www.163.org:80

NFLoadBalancerRuleClassName: com.netflix.loadbalancer.RandomRule
stores:
 ribbon:
  listOfServers: www.baidu.com,www.jalja.org,www.163.org
  #随机
  NFLoadBalancerRuleClassName: com.netflix.loadbalancer.RandomRule

@Bean
  public IRule ribbonRule() {
    return new RandomRule();//这里配置策略，和配置文件对应
  }

http://www.baidu.com:80
http://www.baidu.com:80
http://www.baidu.com:80
http://www.163.org:80
http://www.baidu.com:80
http://www.jalja.org:80

@Bean
  public IRule ribbonRule() {
    return new BestAvailableRule();//这里配置策略，和配置文件对应
  }

http://www.baidu.com:80
http://www.baidu.com:80
http://www.baidu.com:80
http://www.baidu.com:80
http://www.baidu.com:80
http://www.baidu.com:80