以两个模块（batch，business）为例子，期望实现batch调用business中的hello接口

在主程序batch中引入pom文件

        <!--远程调用openfeign--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-openfeign</artifactId></dependency><!--openfeign默认使用的是loadBalance的负载均衡器  --><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-loadbalancer</artifactId></dependency>

在business中的application.properties设置app名

spring.application.name=business

batch创建feign包

新建文件businessFeign.java

@FeignClient(name="business",url = ("http://127.0.0.1:8002/business"))
public interface businessFeign {@GetMapping("/hello")String hello();
}

batch启动类中增加注解

@EnableFeignClients("com.fugui.train.batch.feign")

 新建test.java以测试是否成功

@RestController
public class Test {@Resourceprivate businessFeign feign;@GetMapping("/hello")public String hello(){return feign.hello();}
}

重启项目