[Java知识库]FeignClient打印IP信息，自定义feign.Client

?1、创建FEIGN配置文件

import feign.Client;
import feign.Logger;
import org.springframework.cloud.netflix.ribbon.SpringClientFactory;
import org.springframework.cloud.openfeign.ribbon.CachingSpringLoadBalancerFactory;
import org.springframework.cloud.openfeign.ribbon.LoadBalancerFeignClient;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class FeignConfiguration {

    @Bean
    Logger.Level feignLoggerLevel() {
        //NONE，无记录（DEFAULT）
        //BASIC，只记录请求方法和URL以及响应状态代码和执行时间。
　　　    //HEADERS，记录基本信息以及请求和响应标头。
　　　    //FULL，记录请求和响应的头文件，正文和元数据。
        return Logger.Level.BASIC;   //设置返回日志登记
    }


    /**
     * 自定义feign.Client
     * @return
     */
    @Bean
    public Client feignIPClient(CachingSpringLoadBalancerFactory cachingFactory,
                                SpringClientFactory clientFactory) {
        return new LoadBalancerFeignClient(new FeignIPClient(),cachingFactory, clientFactory);
    }
}

import feign.Client;
import feign.Request;
import feign.Response;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLSocketFactory;
import java.io.IOException;

public class FeignIPClient extends Client.Default {
    Logger logger = LoggerFactory.getLogger("FeignIPClient");

    /**
     * 默认构造方法
     */
    public FeignIPClient(){
        this(null,null);
    }

    /**
     * Null parameters imply platform defaults.
     * @param sslContextFactory
     * @param hostnameVerifier
     */
    public FeignIPClient(SSLSocketFactory sslContextFactory, HostnameVerifier hostnameVerifier) {
        super(sslContextFactory, hostnameVerifier);
    }

    @Override
    public Response execute(Request request, Request.Options options) throws IOException {
        //打印目标节点IP
        logger.info("======请求至：---> {}",request.url());
        return super.execute(request,options);
    }
}

2、指定FEIGNCLIENT要读取的配置

@FeignClient(name = "xxx",  configuration = FeignConfiguration.class,path = "/api/ala")
public interface ServerFeign {
    @RequestMapping(value = "/xxxxx/getDate",method = RequestMethod.POST)
    String getDate(@RequestBody GetAlarmRpcReq getAlarmReq);
}

3、在配置文件中开启FEIGN日志

?.yml这样配置

logging:
  level:
    #包名
    com:
      service:
         ServiceFeign: debug
        

.properties这样

logging.level.com.service.ServiceFeign: debug