定义一个不需要Hystrix支持的FeignClient

UserFeignClientWithoutHystrix.java

package com.example.demo.feign;
@FeignClient(name="spring-cloud-provider",fallback=UserFeignClientFallback.class,configuration=FeignClientWithoutHystrixConfig.class)
public interface UserFeignClientWithoutHystrix {
    @RequestMapping(value="/user/get?id={id}",method=RequestMethod.GET)
    public User get(@PathVariable("id") String id);
    @RequestMapping(value="/user/list",method=RequestMethod.GET)
    public List<User>  list();
}

FeignClientWithoutHystrixConfig.java

package com.example.config;
@Configuration
public class FeignClientWithoutHystrixConfig {

      /**
       * 禁止某个api支持hystrix fallback
       * @return
       */
      @Bean
      @Scope("prototype")
      public Feign.Builder feignBuilder() {
        return Feign.builder();
      }
}

验证

当服务提供端启动的时候，UserFeignClientWithoutHystrix可以被正常调用。当服务提供端关闭之后UserFeignClientWithoutHystrix调用失败，但是不会调用Hystrix的回调(UserFeignClientFallback)