springboot整合log4j

1、依赖添加

 1.1、添加依赖

 需要引入 log4j 的依赖支持，推荐自己确定使用的版本。

<dependency>
        <groupId>org.apache.logging.log4jgroupId>
        <artifactId>log4j-to-slf4jartifactId>
        <version>2.11.2version>
dependency>

 1.2、剔除依赖

 springboot 默认自己内部添加了对日志的支持，需要将其全部剔除掉，不然会影响 log4j 的依赖使用。

<dependency>
        <groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starter-loggingartifactId>
        <exclusions>
            <exclusion>
               <groupId>*groupId>
                <artifactId>*artifactId>
            exclusion>
        exclusions>
dependency>

2、配置日志

 2.1、日志打印记录

 根据自己的需求进行相关的配置，这里需要注意的是使用 xml 文件进行配置，使用 properties 有坑没爬起来，文件名自定义，没有啥要求，都会在配置文件中进行指定的。

<configuration  scan="true" scanPeriod="10 seconds">

    <contextName>beordiecontextName>
    <property name="path" value="E:\file\javalearn\blog\src\main\resources\logs" />
    <conversionRule conversionWord="clr" converterClass="org.springframework.boot.logging.logback.ColorConverter" />
    <conversionRule conversionWord="wex" converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter" />
    <conversionRule conversionWord="wEx" converterClass="org.springframework.boot.logging.logback.ExtendedWhitespaceThrowableProxyConverter" />
    <property name="CONSOLE_LOG_PATTERN" value="${CONSOLE_LOG_PATTERN:-%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"/>

    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>infolevel>
        filter>
        <encoder>
            <Pattern>${CONSOLE_LOG_PATTERN}Pattern>
            <charset>UTF-8charset>
        encoder>
    appender>

    <appender name="DEBUG_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${path}/debug.logfile>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%npattern>
            <charset>UTF-8charset>
        encoder>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${log}/debug/log-debug-%d{yyyy-MM-dd}.%i.logfileNamePattern>
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <maxFileSize>100MBmaxFileSize>
            timeBasedFileNamingAndTriggeringPolicy>
            <maxHistory>15maxHistory>
        rollingPolicy>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>debuglevel>
            <onMatch>ACCEPTonMatch>
            <onMismatch>DENYonMismatch>
        filter>
    appender>

    <appender name="INFO_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${log}/info.logfile>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%npattern>
            <charset>UTF-8charset>
        encoder>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${log}/info/log-info-%d{yyyy-MM-dd}.%i.logfileNamePattern>
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <maxFileSize>100MBmaxFileSize>
            timeBasedFileNamingAndTriggeringPolicy>
            <maxHistory>15maxHistory>
        rollingPolicy>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>infolevel>
            <onMatch>ACCEPTonMatch>
            <onMismatch>DENYonMismatch>
        filter>
    appender>

    <appender name="WARN_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${log}/warn.logfile>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%npattern>
            <charset>UTF-8charset>
        encoder>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${log}/warn/log-warn-%d{yyyy-MM-dd}.%i.logfileNamePattern>
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <maxFileSize>100MBmaxFileSize>
            timeBasedFileNamingAndTriggeringPolicy>
            <maxHistory>15maxHistory>
        rollingPolicy>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>warnlevel>
            <onMatch>ACCEPTonMatch>
            <onMismatch>DENYonMismatch>
        filter>
    appender>

    <appender name="ERROR_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${log}/error.logfile>
        <encoder>
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%npattern>
            <charset>UTF-8charset>
        encoder>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${log}/error/log-error-%d{yyyy-MM-dd}.%i.logfileNamePattern>
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <maxFileSize>100MBmaxFileSize>
            timeBasedFileNamingAndTriggeringPolicy>
            <maxHistory>15maxHistory>
        rollingPolicy>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>ERRORlevel>
            <onMatch>ACCEPTonMatch>
            <onMismatch>DENYonMismatch>
        filter>
    appender>

    <springProfile name="dev">
        <logger name="com.beordie" level="debug"/>
    springProfile>

    <root level="info">
        <appender-ref ref="CONSOLE" />
        <appender-ref ref="DEBUG_FILE" />
        <appender-ref ref="INFO_FILE" />
        <appender-ref ref="WARN_FILE" />
        <appender-ref ref="ERROR_FILE" />
    root>

configuration>

 2.2、指定配置文件

 还需要在 spring boot 的项目配置文件中进行配置的指定。

logging:
  config: classpath:log4j.xml

 到这里完成对日志的整体配置，启动项目通过下面语句拿到日志对象即可进行日志的打印输出。

private final Logger LOGGING = LoggerFactory.getLogger(ArticleController.class);