Spring Cloud Ribbon 抛出名为 No instances available for serverurl 的异常

Question

我正在使用 spring 引导和 spring 功能区。我做了功能区的所有配置。但是当我向 rest 控制器发送请求时，它会抛出一个名为 No instances available for serverurl 的异常。我该如何解决这个问题？

这些是我的配置

application.yml

port: 8888

serverurl:
  ribbon:
    eureka:
      enabled: false
    listOfServers: localhost:8081,localhost:8082,localhost:8083
    ServerListRefreshInterval: 15000

Spring 引导主程序 Class

@SpringBootApplication
@RibbonClient(name = "serverurl", configuration = RibbonCongisuration.class)
public class Server {

    @LoadBalanced
    @Bean
    RestTemplate restTemplate(){
        return new RestTemplate();
    }


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

休息控制器

@RestController
@RequestMapping(value = "api/v1/clients")
public class ClientController {



    @Autowired
    RestTemplate restTemplate;

    @GetMapping(value = "/{ID}")
    public ClientDTO findByID(@PathVariable("ID") String clientID){
       return  restTemplate.getForEntity("http://serverurl/api/v1/clients/"+clientID,ClientDTO.class).getBody();

    }
}

URL

http://localhost:8888/api/v1/clients/1234

Answer 1

1) 确保 http://localhost:8081/api/v1/clients/1234 (8081/8082/8083) 响应。

2) 添加RibbonConfiguration 文件例如：

@Configuration
public class RibbonConfiguration{
@Bean
public IRule ribbonRule() {
    return new BestAvailableRule();
}

@Bean
public IPing ribbonPing() {
    return new PingUrl();
}

}

3) 确保你有这种 pom 依赖（例如）：

<dependency>
     <groupId>org.springframework.cloud</groupId>
     <artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
</dependency>

和

<dependencyManagement>
 <dependencies>
     <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-dependencies</artifactId>
        <version>Finchley.SR2</version>
        <type>pom</type>
        <scope>import</scope>
     </dependency>
 </dependencies>

Spring Cloud Ribbon 抛出名为 No instances available for serverurl 的异常

Spring Cloud Ribbon throws exception called No instances available for serverurl

java

spring

spring-boot

spring-cloud

netflix-ribbon