spring cloud Feign使用

1引入jar包

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-feign</artifactId>
    <version>1.4.1.RELEASE</version>
</dependency>

2在启动类需要添加的注解

@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
public class OrderApplication {
    public static void main(String[] args) {
        SpringApplication.run(OrderApplication.class, args);
    }
}

3创建一个接口

@FeignClient(name = "ClientProduct")//在eureka注册的另一个服务名
public interface ProductClieng {
    @GetMapping("/test2") //在eureka注册的另一个服务中的controller链接
    String prodctmsg();
}

4调用这个接口

@RestController
public class Clientcontroller
{
    @Autowired
    private ProductClieng productClieng;
    @GetMapping("/getproduct")
    public String msg()
    {
      return productClieng.prodctmsg();
    }
}