在Feign中添加自定义配置

package com.xing.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Scope;

import feign.Contract;
import feign.Feign;

@Configuration
public class FeignConfig {

    //配置是在FeignClient中的接口中使用Feign自带的注解
    @Bean
    public Contract feignContract(){
        return new feign.Contract.Default();
   }
    
    //禁用Hystrix
    @Bean
    @Scope("prototype")
    public Feign.Builder feignBuilder() {
        return Feign.builder();
    } 
    
}
        

package com.xing.movie.FeignInteface;

import org.springframework.cloud.netflix.feign.FeignClient;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import com.xing.config.FeignConfig;
import com.xing.movie.entity.User;

import feign.Param;
import feign.RequestLine;

@FeignClient(name = "xing-user" ,fallback = UserInterfaceFallback.class,configuration = FeignConfig.class)//服务名
public interface UserInterface {

　　//@RequestMapping(value ="/user/findByNameEn/{nameEn}" ,method =RequestMethod.GET ) //必须使用RequestMapper,使用GetMapping启动报错
　　@RequestLine("GET /user/findByNameEn/{nameEn}") //当配置了feignContract之后要使用这个Feign的注解，使用上面的报错

  public User findByNameEn(@PathVariable("nameEn") String nameEn);//@PathVariable后面需要指定nameEn，不然可能报错
    
}
//不一定要内部类可以是外部类
@Component
class UserInterfaceFallback implements UserInterface {
    @Override
    public User findByNameEn(String nameEn) {
        User user = new User();
        user.setName("");
        user.setNameEn("");
        user.setId(0);
        return user;
    }
}