Feign 的细粒度与全局 日志打印

• 一、细粒度 基于JAVA代码的方式配置
• 二、细粒度 基于配置的方式
• • 三. 全局 ，基于JAVA代码的方式配置
• 四、全局 ， 基于配置的方式

1. 在Feign接口注解里加configuration 指向一个Logger的配置类

import com.itmuch.contentcenter.domain.dto.user.UserDTO;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import ribbonconfiguration.UserCenterFeignConfiguration;

//name：要请求的微服务的名称
@FeignClient(name = "user-center" ,configuration = UserCenterFeignConfiguration.class)
public interface UserCenterFeignClient {

    
    @GetMapping("/users/{id}")
    UserDTO findById(@PathVariable Integer id);
}

2. 创建Logger的配置类 UserCenterFeignConfiguration
   注意：如果这个类加了@Configuration，那么这个的位置要与启动类是同一级目录，不能让@ComponentScan扫描到

import feign.Logger;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;


@Configuration
public class UserCenterFeignConfiguration {

    @Bean
    public Logger.Level level(){
        return Logger.Level.FULL;
    }
}

3. 配置yml
   能保证 UserCenterFeignClient 接口所在目录是debug即可

logging:
  level:
    com.itmuch.contentcenter.feignclient.UserCenterFeignClient: DEBUG

1. 修改yml

logging:
  level:
    com.itmuch.contentcenter.feignclient.UserCenterFeignClient: DEBUG
feign:
  client:
    config:
      user-center: #请求的微服务的名字
        loggerLevel: full

2. Feign接口

import com.itmuch.contentcenter.domain.dto.user.UserDTO;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;

//name：要请求的微服务的名称
@FeignClient(name = "user-center")
public interface UserCenterFeignClient {

    
    @GetMapping("/users/{id}")
    UserDTO findById(@PathVariable Integer id);
}

1. 修改启动类Feign注解

@EnableFeignClients(defaultConfiguration = GlobalFeignConfiguration.class)

2. 创建 GlobalFeignConfiguration

import feign.Logger;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class GlobalFeignConfiguration {

    @Bean
    public Logger.Level level(){
        return Logger.Level.FULL;
    }
}

1. 修改yml

feign:
  client:
    config:
      default: #全局
        loggerLevel: full