深入讲解Logback

﹏ヽ暗。殇╰゛Y 2023-02-17 02:20 45阅读 0赞

# 什么是Logback #

ogback是由log4j创始人设计的又一个开源日志组件。是log4j的一个 改良版本。此外完整实现SLF4J API使你可以很方便地更换成其它日志系统如log4j或JDK14 Logging。logback-access访问模块与Servlet容器集成提供通过Http来访问日志的功能。

# 在springboot中如何使用logback #

这部分网上已经被人写烂了，我就不写了，随便丢一个教程吧  
https://blog.csdn.net/white\_ice/article/details/85065219

# 给出一个项目中的案例 #

logback-spring.xml

<?xml version="1.0" encoding="UTF-8"?>
    <configuration scan="true" scanPeriod="60 seconds" debug="false">
        <include resource="org/springframework/boot/logging/logback/defaults.xml"/>
    
        <property name="LOG_FILE_NAME_PATTERN" value="/usr/local/hppalogs/web/hppa-web.%d{yyyy-MM-dd}.%i.log"/>
        
        <property name="CONSOLE_LOG_PATTERN" value="%clr(%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%c){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}"/>
        <property name="FILE_LOG_PATTERN" value="%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}} ${LOG_LEVEL_PATTERN:-%5p} ${PID:- } --- [%t] %c : %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}"/>
    
        
        <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
            <encoder>
                <pattern>${CONSOLE_LOG_PATTERN}</pattern>
            </encoder>
        </appender>
    
        
        <appender name="file" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>${LOG_FILE_NAME_PATTERN}</fileNamePattern>
                
                <maxHistory>366</maxHistory>
                
                <totalSizeCap>2GB</totalSizeCap>
    
                
                <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <maxFileSize>10MB</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
    
            </rollingPolicy>
            <encoder>
                <pattern>${FILE_LOG_PATTERN}</pattern>
            </encoder>
        </appender>
    
        <root level="DEBUG">
            <appender-ref ref="console"/>
            <appender-ref ref="file"/>
        </root>
    </configuration>

# 如何设置不同的包下面打印不同级别的日志？ #

# 如何设置打印到不同的配置文件里面去？ #

Logger log = LoggerFactory.getLogger("log1");
    Logger requestLog = LoggerFactory.getLogger("log2");

<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_HOME}/dbw-hppa-server.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${LOG_HOME}/dbw-hppa-server.%d{yyyy-MM-dd}.log.zip</fileNamePattern>
        </rollingPolicy>
        <append>true</append>
        <encoder>
            <pattern>[%thread]%d{HH:mm:ss.SSS} %-5level %logger{100}[%line] - %msg %mdc %n</pattern>
            <charset>UTF-8</charset>
        </encoder>
    </appender>
    
    <appender name="requestLogAppender" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_HOME}/dbw-hppa-server-request.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${LOG_HOME}/dbw-hppa-server-request.%d{yyyy-MM-dd}.log.zip</fileNamePattern>
        </rollingPolicy>
        <append>true</append>
        <encoder>
            <pattern>[%thread]%d{HH:mm:ss.SSS} %-5level %logger{100}[%line] - %msg %mdc %n</pattern>
            <charset>UTF-8</charset>
        </encoder>
    </appender>
    
    <logger name="log1" level="DEBUG" additivity="false">
            <appender-ref ref="STDOUT"/>
            <appender-ref ref="requestLogAppender"/>
    </logger>
    <logger name="log2" level="ERROR" additivity="false">
        <appender-ref ref="STDOUT"/>
        <appender-ref ref="FILE"/>
    </logger>