SpringBoot正确打日志的姿势

2019-11-09 16:04:53来源:博客园 阅读 ()

新老客户大回馈,云服务器低至5折

SpringBoot正确打日志的姿势

前篇

Spring Boot 日志处理你还在用Logback?

本文简介

前篇侧重 Log4j2 的配置,本篇侧重统一日志处理的应用,以下包含 HTTP 请求的日志处理、Exception 异常日志处理。

HTTP 请求日志

img

1、明确日志记录的内容

示例:用户、IP地址、Method、URI、请求参数、请求体

2、全局拦截 MDCFilter.java

package com.anoyi.config.server;

import lombok.extern.log4j.Log4j2;
import org.slf4j.MDC;
import org.springframework.http.HttpMethod;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.OncePerRequestFilter;

import javax.servlet.FilterChain;
import javax.servlet.ReadListener;
import javax.servlet.ServletException;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
import javax.servlet.http.HttpServletResponse;
import java.io.*;

/**
 * 拦截请求信息,添加到日志
 */
@Component
@Log4j2
public class MDCFilter extends OncePerRequestFilter {

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws ServletException, IOException {
        try {
            MDC.put("user", request.getRemoteUser());
            String query = request.getQueryString() != null ? "?" + request.getQueryString() : "";
            if (request.getMethod().equals(HttpMethod.POST.name())) {
                MultiReadHttpServletRequest multiReadHttpServletRequest = new MultiReadHttpServletRequest(request);
                log.info("IP:{}, Method:{}, URI:{} Body:{}", request.getRemoteAddr(), request.getMethod(), request.getRequestURI() + query, multiReadHttpServletRequest.getRequestBody());
                chain.doFilter(multiReadHttpServletRequest, response);
            } else {
                log.info("IP:{}, Method:{}, URI:{}", request.getRemoteAddr(), request.getMethod(), request.getRequestURI() + query);
                chain.doFilter(request, response);
            }
        } finally {
            MDC.clear();
        }
    }

    /**
     * HttpServletRequest 请求体多读
     */
    class MultiReadHttpServletRequest extends HttpServletRequestWrapper {

        // 缓存 RequestBody
        private String requestBody;

        MultiReadHttpServletRequest(HttpServletRequest request) {
            super(request);
            requestBody = "";
            try {
                StringBuilder stringBuilder = new StringBuilder();
                InputStream inputStream = request.getInputStream();
                byte[] bs = new byte[1024];
                int len;
                while ((len = inputStream.read(bs)) != -1) {
                    stringBuilder.append(new String(bs, 0, len));
                }
                requestBody = stringBuilder.toString();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        @Override
        public ServletInputStream getInputStream() throws IOException {
            final ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(requestBody.getBytes());

            return new ServletInputStream() {
                public int read() throws IOException {
                    return byteArrayInputStream.read();
                }

                @Override
                public boolean isFinished() {
                    return byteArrayInputStream.available() == 0;
                }

                @Override
                public boolean isReady() {
                    return true;
                }

                @Override
                public void setReadListener(ReadListener readListener) {

                }
            };
        }

        @Override
        public BufferedReader getReader() throws IOException {
            return new BufferedReader(new InputStreamReader(this.getInputStream()));
        }

        String getRequestBody() {
            return requestBody.replaceAll("\n", "");
        }
    }

}

3、配置日志 Pattern

logging:
  pattern:
    console: "%d{yyyy-MM-dd HH:mm:ss.SSS} %5p [%15.15t] %-40.40c{1.} [%X{user}] : %m%n%xwEx"
说明: MDC.put("user", request.getRemoteUser()); => %X{user}

? 著作权归作者所有,转载或内容合作请联系作者

img

● Spring Boot 定制 parent 快速构建应用

● Spring Boot 容器化部署 - Docker

● SpringBot中教你手把手配置 https

● Spring Boot 日志处理你还在用Logback?

● 【双11狂欢的背后】微服务注册中心如何承载大型系统的千万级访问?

● Spring Boot 新一代监控你该这么玩

● Spring Boot 异常处理

● Spring Boot 配置 - 配置信息加密

● 拒绝黑盒应用-Spring Boot 应用可视化监控

● 并发Bug之源有三,请睁大眼睛看清它们

本文由博客一文多发平台 OpenWrite 发布!


原文链接:https://www.cnblogs.com/springforall/p/11826833.html
如有疑问请与原作者联系

标签:

版权申明:本站文章部分自网络,如有侵权,请联系:west999com@outlook.com
特别注意:本站所有转载文章言论不代表本站观点,本站所提供的摄影照片,插画,设计作品,如需使用,请与原作者联系,版权归原作者所有

上一篇:解决Maven 编译出的jar中没有主清单属性

下一篇:这篇文章带你彻底理解synchronized