springcloud--feign

feign

服务与服务之间的调用方式

feign默认是用ribbon,默认支持集群

@FeignClient("stores")
public interface StoreClient {
    @RequestMapping(method = RequestMethod.GET, value = "/stores")
    List<Store> getStores();

    @RequestMapping(method = RequestMethod.POST, value = "/stores/{storeId}", consumes = "application/json")
    Store update(@PathVariable("storeId") Long storeId, Store store);
}

依赖

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

@EnableEurekaClient
@SpringBootApplication
@EnableFeignClients(clients = StudentService.class) //指定API开启
public class MyribbonApplication {

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

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

}