zoukankan      html  css  js  c++  java
  • 【SpringBoot】Logback日志框架介绍和SpringBoot整合实战

    ========================11、Logback日志框架介绍和SpringBoot整合实战 2节课================================

    1、新日志框架LogBack介绍
    简介:日志介绍和新日志框架Logback讲解

    1.常用处理java的日志组件 slf4j,log4j,logback,common-logging 等

    2、logback介绍:基于Log4j基础上大量改良,不能单独使用,推荐配合日志框架SLF4J来使用
    logback当前分成三个模块:logback-core,logback-classic和logback-access;
    logback-core是其它两个模块的基础模块

    3、Logback的核心对象:
    Logger:日志记录器
    Appender:指定日志输出的目的地,目的地可以是控制台,文件
    Layout:日志布局 格式化日志信息的输出


    4、日志级别:DEBUG < INFO < WARN < ERROR

    ===========log4j示例===========
    ### 设置###
    log4j.rootLogger = debug,stdout,D,E

    ### 输出信息到控制抬 ###
    log4j.appender.stdout = org.apache.log4j.ConsoleAppender
    log4j.appender.stdout.Target = System.out
    log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
    log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n

    ### 输出DEBUG 级别以上的日志到=D://logs/error.log ###
    log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
    log4j.appender.D.File = D://logs/log.log
    log4j.appender.D.Append = true
    log4j.appender.D.Threshold = DEBUG
    log4j.appender.D.layout = org.apache.log4j.PatternLayout
    log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n

    ### 输出ERROR 级别以上的日志到=D://logs/error.log ###
    log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
    log4j.appender.E.File =E://logs/error.log
    log4j.appender.E.Append = true
    log4j.appender.E.Threshold = ERROR
    log4j.appender.E.layout = org.apache.log4j.PatternLayout
    log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n

    ===========logback============

    4、Log4j日志转换为logback在线工具(支持log4j.properties转换为logback.xml,不支持 log4j.xml转换为logback.xml)
    https://logback.qos.ch/translator/


    2、SpringBoot2.x日志讲解和自定义Logback配置实战
    简介:讲解SpringBoot2.x整合Logback配置实战

    1、官网介绍:https://docs.spring.io/spring-boot/docs/2.1.0.BUILD-SNAPSHOT/reference/htmlsingle/#boot-features-logging

    各个组件案例:https://logback.qos.ch/manual/index.html

    2、分析SpringBoot启动日志
    1)默认情况下,Spring Boot将日志输出到控制台

    3、整合Logback实战
    1)创建 日志文件logback-spring.xml,官方推荐 -spring.xml结尾
    默认加载加载配置顺序 logback-spring.xml, logback-spring.groovy, logback.xml, or logback.groovy

    注释:
    <configuration> 子节点
    <appender></appender>
    <logger></logger>
    <root></root>(要加在最后)

    <?xml version="1.0" encoding="UTF-8" ?>
    <configuration>
    
         <appender name="consoleApp" class="ch.qos.logback.core.ConsoleAppender">
            <layout class="ch.qos.logback.classic.PatternLayout">
                <pattern>
                    %date{yyyy-MM-dd HH:mm:ss.SSS} %-5level[%thread]%logger{56}.%method:%L -%msg%n
                </pattern>
            </layout>
        </appender>
    
        <appender name="fileInfoApp" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                 <level>ERROR</level>
                <onMatch>DENY</onMatch>
                <onMismatch>ACCEPT</onMismatch>
            </filter>
            <encoder>
                <pattern>
                    %date{yyyy-MM-dd HH:mm:ss.SSS} %-5level[%thread]%logger{56}.%method:%L -%msg%n
                </pattern>
            </encoder>
            <!-- 滚动策略 -->
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <!-- 路径 -->
                <fileNamePattern>app_log/log/app.info.%d.log</fileNamePattern>
            </rollingPolicy>
        </appender>
    
        <appender name="fileErrorApp" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
                <level>ERROR</level>
            </filter>
            <encoder>
                <pattern>
                    %date{yyyy-MM-dd HH:mm:ss.SSS} %-5level[%thread]%logger{56}.%method:%L -%msg%n
                </pattern>
            </encoder>
            
            <!-- 设置滚动策略 -->
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <!-- 路径 -->
                <fileNamePattern>app_log/log/app.err.%d.log</fileNamePattern>
                
                <!-- 控制保留的归档文件的最大数量,超出数量就删除旧文件,假设设置每个月滚动,
                且<maxHistory> 是1,则只保存最近1个月的文件,删除之前的旧文件 -->
                 <MaxHistory>1</MaxHistory>
                
            </rollingPolicy>
        </appender>
       <root level="INFO">  
            <appender-ref ref="consoleApp"/>
            <appender-ref ref="fileInfoApp"/>
            <appender-ref ref="fileErrorApp"/>
        </root>
    </configuration>
    xml
    package net.xdclass.base_project.controller;
    
    import net.xdclass.base_project.domain.JsonData;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    
    @RestController
    @RequestMapping("/api/v1")
    public class UserController {
    
        
        
        private Logger logger = LoggerFactory.getLogger(this.getClass());
        
        
        @GetMapping("log")
        public Object testLog(){
            
            logger.debug("this is debug level");
            logger.info("this is info level ");
            logger.warn("this is warn level ");
            logger.error("this is error level");
            return JsonData.buildSuccess();
        }
        
    }
    Controller
  • 相关阅读:
    数据库 MySQL part4
    数据库 MySQL part3
    win64 Python下安装PIL出错解决2.7版本 (3.6版本可以使用)
    Python3.6 安装、后续终端pip 安装模块命令
    Python for循环文件
    Python遍历字典dict的几种方法
    Python 模块xml
    Socket 是嘛玩意儿(简单聊聊)
    Python高阶函数(Map、Reduce、Filter)和lambda函数一起使用 ,三剑客
    异步加载数据
  • 原文地址:https://www.cnblogs.com/hellowq/p/10535740.html
Copyright © 2011-2022 走看看