[microservice openfeign] feign's log record

Feign For each Feign Client creates a logger. By default ,logger The name of is create Feign The complete class name of the interface of the client .

Simply speaking ,Feign Provides log printing function , We can adjust the log level through configuration , Thus understand Feign in Http Details of the request , That is to say Feign The interface calls are monitored and output .

because feign Debug log is debug Level output ,springboot The default log level is info, therefore feign Of debug The log level will not output .

logging.level=debug This configuration is used to configure all log levels .

This scenario only needs to be applied to feign interfaces debug To configure , So it is configured like this logging.level.com.ossa.feign.api=debug

stay yaml Is configured as follows

logging:
  level:
    com.ossa.feign.api: debug

com.ossa.feign.api Store all under FeignClient Interface

Global log processing

Note here , We are doing this for all feign Interface for unified log processing , If the logs of individual services are processed uniformly , It can be handled through the configuration file , as follows ：

The configuration file

feign:
  sentinel:
    enabled: true
  client:
    config:
      #  Provider's service name 
      ossa-service-producer:
        # Request log level 
        loggerLevel: NONE

Configuration class

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

/** * @author issavior */
@Configuration
public class FeignClientConfig {
    

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

Independent service log processing

Configuration file mode

In the configuration file of the consumer service, do the following

feign:
  client:
    config:
      #  Provider's service name 
      ossa-service-producer:
        # Request log level 
        loggerLevel: NONE

Configuration class mode

1. Customize a configuration class

   import feign.Logger;
   import org.springframework.context.annotation.Bean;
   import org.springframework.context.annotation.Configuration;
   
   /** * @author issavior */
   @Configuration
   public class FeignClientConfig {
         
   
       @Bean
       public Logger.Level feignLoggerLevel(){
         
           return Logger.Level.FULL;
       }
   }
   

2. stay @FeignClient Specify the configuration file at the annotation , Overwrite the default configuration file

   import com.ossa.feign.config.FeignClientConfig;
   import org.springframework.cloud.openfeign.FeignClient;
   import org.springframework.web.bind.annotation.GetMapping;
   import org.springframework.web.bind.annotation.PathVariable;
   import org.springframework.web.bind.annotation.RequestMapping;
   
   /** * @author issavior */
   @FeignClient(value = "ossa-service-producer", configuration = FeignClientConfig.class)
   @RequestMapping(value = "/producer")
   public interface ProducerFeign {
         
   
       /** *  according to ID Query products  * * @param id  The primary key of the item ID * @return  Information about related products  */
       @GetMapping(value = "/{id}")
       String producerById(@PathVariable("id") String id);
   
   }