Eureka + Ribbon + Feign + Hystrix （使用熔断器Hystrix ）

改造Eureka + Ribbon + Feign 负载均衡  点击进入查看

Step 3-1：修改application.properties，开启feign断路器功能

feign.hystrix.enabled=true

 注：不熟悉如何搭建Spring Boot 项目，请点击

 

Step 3-2：新建 SchedualServiceHiHystric.java

@Component
public class SchedualServiceHiHystric implements SchedualServiceHi {
    @Override
    public String sayHiFromClientOne(String name) {
        return "sorry "+name;
    }
}

Step 3-2：改造 SchedualServiceHi.java ，增加 fallback = 

package com.learn.feign.clients;

import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;

@FeignClient(value = "service-hi",fallback = SchedualServiceHiHystric.class))
public interface SchedualServiceHi {
    @RequestMapping(value = "/hi",method = RequestMethod.GET)
    String sayHiFromClientOne(@RequestParam(value = "name") String name);
}

 

•   启动后效果：访问 http://localhost:8765/hi?name=forezp                           

浏览器交替显示：

hi forezp,i am from port:8762

hi forezp,i am from port:8763

•  关闭SERVICE-HI：访问 http://localhost:8765/hi?name=forezp 

浏览器显示：

sorry forezp