一、覆寫fegin的預設配置

1、新增配置類FeignConfiguration.java

package com.config;

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

import feign.Contract;
import feign.Logger;
@Configuration
public class FeignConfiguration {

    @Bean
    public
 
 Contract feignContract() {
        //這裡可以配置預設配置
        return new feign.Contract.Default();
    }

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

需要之一的是此配置檔案不能再spring cloud掃描包的路徑下，否則會有問題出現

2、定義一個FeignClient2.java

package com.pupeiyuan.feignClient;

 
import java.util.List;

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

import com.config.FeignConfiguration;
 
import com.pupeiyuan.bean.NhReportStatusHistory;

import feign.Param;
import feign.RequestLine;

@FeignClient(name = "MULTIPLE",configuration = FeignConfiguration.class)
public interface FeignClient2 {

    @RequestMapping(value = "/getDate/{id}", method = RequestMethod.GET)
    public List<NhReportStatusHistory> dataList(@PathVariable("id") Long id);
}

3、controller中呼叫

FeignClientController.java

package com.pupeiyuan.controller;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import com.pupeiyuan.bean.NhReportStatusHistory;
import com.pupeiyuan.feignClient.FeignClient2;
import com.pupeiyuan.feignClient.UserFeignClient;

@RestController
public class FeignClientController {

    @Autowired
    private FeignClient2 feignClient2;
     
    @GetMapping("/movie2/{id}")
      public List<NhReportStatusHistory> list2(@PathVariable Long id) {
        return this.feignClient2.dataList(id);
      }
}

實現的效果和上一篇文章是一樣的

二、feign client的日誌列印

預設情況下feign是沒有日誌打印出來的，需要增加相關配置：
1、建立Feign的配置檔案，並在其中設定日誌等級

/**
 * Feign 客戶端配置
 *
 * @author xushiling
 * @date 2018/8/13
 */
@Configuration
public class FeignConfiguration {
    @Bean
    Logger.Level feignLoggerLevel() {
        //這裡記錄所有，根據實際情況選擇合適的日誌level
        return Logger.Level.FULL;
    }
}

這裡的level級別控制如下

NONE, No logging (DEFAULT).
BASIC, Log only the request method and URL and the response status code and execution time.
HEADERS, Log the basic information along with request and response headers.
FULL, Log the headers, body, and metadata for both requests and responses.
NONE, 不記錄 (DEFAULT).
BASIC, 僅記錄請求方式和URL及響應的狀態程式碼與執行時間.
HEADERS, 日誌的基本資訊與請求及響應的頭.
FULL, 記錄請求與響應的頭和正文及元資料.

2、在客戶端介面指定此配置

package com.pupeiyuan.feignClient;

import java.util.List;

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

import com.config.FeignConfiguration;
import com.pupeiyuan.bean.NhReportStatusHistory;

import feign.Param;
import feign.RequestLine;

@FeignClient(name = "MULTIPLE",configuration = FeignConfiguration.class)
public interface FeignClient2 {

    @RequestMapping(value = "/getDate/{id}", method = RequestMethod.GET)
    public List<NhReportStatusHistory> dataList(@PathVariable("id") Long id);
}

3、配置檔案開啟日誌記錄
application.properties設定：
logging.level.com.haoait.client.UserServiceClient:debug
如果是yml配置檔案則做如下配置：

logging:
  level:
    com.haoait.client.UserServiceClient:debug

日誌輸出如下：