springcloud 2.2.2 feign日誌打印

springcloud 2.2.2 feign日誌打印

全局通用的配置方式

package cn.zhangfusheng.base.feign.config;

import feign.Logger;
import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.openfeign.EnableFeignClients;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @ClassName: FeignConfig
 * @Author: ZFS
 * @Date: 2019/4/11 17:49
 */
@Slf4j
@Configuration
@EnableFeignClients
public class FeignConfig {

    /**
     * feign 的日誌記錄
     * @return
     */
    @Bean
    Logger.Level feignLoggerLevel() {
        /* NONE, 不記錄日誌 (默認)。
        BASIC, 只記錄請求方法和URL以及響應狀態代碼和執行時間。
        HEADERS, 記錄請求和應答的頭的基本信息。
        FULL, 記錄請求和響應的頭信息，正文和元數據。*/
        log.debug("feign輸出full級別日誌:[ 記錄請求和響應的頭信息，正文和元數據]");
        return Logger.Level.FULL;
    }

}

package cn.zhangfusheng.base.feign.logger;

import feign.Logger;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import java.util.Arrays;

/**
 * @author fusheng.zhang
 * @Description
 * @create 2020-04-16 13:31:00
 */
@Slf4j
@Component
public class FeignLogger extends Logger {

    @Override
    protected void log(String configKey, String format, Object... args) {
       log.info("{}:{}", configKey, String.format(format, args));
    }
}

優化日誌輸出格式

package cn.zhangfusheng.base.feign.logger;

import feign.Request;
import feign.Response;
import feign.Util;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;

import static feign.Util.UTF_8;
import static feign.Util.decodeOrDefault;

/**
 * @author fusheng.zhang
 * @Description feign 日誌
 * @create 2020-04-16 13:31:00
 */
@Slf4j
@Component
public class FeignLogger extends feign.Logger {

    @Override
    protected void log(String configKey, String format, Object... args) {
        log.info("\n\t{}:{}", configKey, String.format(format, args));
    }

    @Override
    protected void logRequest(String configKey, Level logLevel, Request request) {
        StringBuilder logStr = new StringBuilder();
        logStr.append(String.format("\n\t---> %s %s HTTP/1.1", request.httpMethod().name(), request.url()));
        if (logLevel.ordinal() >= Level.HEADERS.ordinal()) {
            request.headers().forEach((k, v) -> {
                logStr.append(String.format("\n\t%s: %s", k, v));
            });

            int bodyLength = 0;
            if (request.requestBody().asBytes() != null) {
                bodyLength = request.requestBody().asBytes().length;
                if (logLevel.ordinal() >= Level.FULL.ordinal()) {
                    String bodyText = request.requestBody() != null ? new String(request.requestBody().asBytes()) : null;
                    logStr.append(String.format("\n\trequestBody: %s", bodyText != null ? bodyText : "Binary data"));
                }
            }
            logStr.append(String.format("\n\t---> END HTTP (%s-byte body)", bodyLength));
            log(configKey, "%s", logStr);
        }
    }

    @Override
    protected Response logAndRebufferResponse(
            String configKey, Level logLevel, Response response, long elapsedTime) throws IOException {
        String reason = response.reason() != null && logLevel.compareTo(Level.NONE) > 0 ? " " + response.reason() : "";
        int status = response.status();
        StringBuilder logStr = new StringBuilder();
        logStr.append(String.format("\n\t<--- HTTP/1.1 %s%s (%sms)", status, reason, elapsedTime));
        if (logLevel.ordinal() >= Level.HEADERS.ordinal()) {
            response.headers().forEach((k, v) -> {
                logStr.append(String.format("\n\t%s: %s", k, v));
            });

            int bodyLength = 0;
            if (response.body() != null && !(status == 204 || status == 205)) {
                byte[] bodyData = Util.toByteArray(response.body().asInputStream());
                bodyLength = bodyData.length;
                if (logLevel.ordinal() >= Level.FULL.ordinal() && bodyLength > 0) {
                    logStr.append(String.format("\n\trequestBody: %s", decodeOrDefault(bodyData, UTF_8, "Binary data")));
                }
                logStr.append(String.format("\n\t<--- END HTTP (%s-byte body)", bodyLength));
                log(configKey, "%s)", logStr);
                return response.toBuilder().body(bodyData).build();
            } else {
                logStr.append(String.format("\n\t<--- END HTTP (%s-byte body)", bodyLength));
                log(configKey, "%s)", logStr);
            }
        }
        return response;
    }

    @Override
    protected IOException logIOException(
            String configKey, Level logLevel, IOException ioe, long elapsedTime) {
        StringBuilder logStr = new StringBuilder();
        logStr.append(String.format("\n\t<--- ERROR %s: %s (%sms)",
                ioe.getClass().getSimpleName(), ioe.getMessage(), elapsedTime));
        if (logLevel.ordinal() >= Level.FULL.ordinal()) {
            StringWriter sw = new StringWriter();
            ioe.printStackTrace(new PrintWriter(sw));
            logStr.append(String.format("\n\t%s", sw.toString()));
            logStr.append("\n\t<--- END ERROR");
            log(configKey, "%s", logStr);
        }
        return ioe;
    }

}

網上目前大多的配置方式如下

/**
 * feign 的日誌記錄
 * @return
 */
@Bean
Logger.Level feignLoggerLevel() {
    /* NONE, 不記錄日誌 (默認)。
    BASIC, 只記錄請求方法和URL以及響應狀態代碼和執行時間。
    HEADERS, 記錄請求和應答的頭的基本信息。
    FULL, 記錄請求和響應的頭信息，正文和元數據。*/
    log.debug("feign輸出full級別日誌:[ 記錄請求和響應的頭信息，正文和元數據]");
    return Logger.Level.FULL;
}

# 在配置logging.level
logging.level.某個feignclient的package: debugger