微服务-RestTemplate UnknownHostException

  • Z时代
  • 2024-01-10
  • 分类：问答

我使用Eureka服务注册服务器进行了简单的设置，使用了公共API的服务以及使用RestTemplate从公共API调用的服务。尤里卡告诉我服务已成功注册，但是当我致电服务时

@Service
public class MyServiceService {
    @Autowired
    private RestTemplate restTemplate;
    private final String serviceUrl;
    public MyServiceService() {
        this.serviceUrl = "http://MY-SERVICE";
    }
    public Map<String, String> getTest() {
        Map<String, String> vars = new HashMap<>();
        vars.put("id", "1");
        restTemplate.setRequestFactory(new HttpComponentsClientHttpRequestFactory());
        return restTemplate.postForObject(serviceUrl+"/test", "", Map.class, vars);
    }
}

我得到以下异常

Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed;
  nested exception is org.springframework.web.client.ResourceAccessException: I/O error on POST request for "http://MY-SERVICE/test": MY-SERVICE;
  nested exception is java.net.UnknownHostException: MY-SERVICE] with root cause java.net.UnknownHostException: MY-SERVICE

我创建了一个示例项目来说明我的设置，也许有人可以看一下并告诉我我的设置有什么问题。

https://github.com/KenavR/spring-boot-microservices-

example

谢谢

回答：

正如patrick-grimard所建议的那样，切换到Brixton并更改代码需要解决此问题。工作解决方案在Github上。

id还将已发布的内容从请求参数更改为请求正文，这也更改了我将其添加到请求中的方式。

@RequestMapping(method = RequestMethod.POST, produces = "application/json; charset=utf-8")
public @ResponseBody Map<String, String> getTest(@RequestBody Map<String, Long> params) {
    Map<String, String> response = new HashMap<>();
    response.put("name", "My Service");
    return response;
}

@Configuration
public class PublicAPIConfiguration {
    @LoadBalanced
    @Bean
    RestTemplate restTemplate() {
        return new RestTemplate();
    }
}

@Service
public class MyServiceService {
    @Autowired
    private RestTemplate restTemplate;
    private final String serviceUrl;
    public MyServiceService() {
        this.serviceUrl = "http://my-service";
    }
    public Map<String, String> getTest() {
        Map<String, Long> vars = new HashMap<>();
        vars.put("id", 1L);
        return restTemplate.postForObject(serviceUrl+"/test", vars, Map.class);
    }
}

以上是 微服务-RestTemplate UnknownHostException 的全部内容， 来源链接： utcz.com/qa/424435.html

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