springboot 使用 log4j2 -

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springboot 使用 log4j2

博客分类：

log4j2

排除默认的日志添加log4j2的依赖

<dependency>  
    <groupId>org.springframework.boot</groupId>  
    <artifactId>spring-boot-starter-web</artifactId>  
    <exclusions><!-- 去掉springboot默认配置 -->  
        <exclusion>  
            <groupId>org.springframework.boot</groupId>  
            <artifactId>spring-boot-starter-logging</artifactId>  
        </exclusion>  
    </exclusions>  
</dependency> 

<dependency> <!-- 引入log4j2依赖 -->  
    <groupId>org.springframework.boot</groupId>  
    <artifactId>spring-boot-starter-log4j2</artifactId>  
</dependency>

如果自定义了文件名，需要在application.yml中配置

logging:
  config:  xxxx.xml

默认名log4j2-spring.xml，就省下了在application.yml中配置

配置模板

<?xml version="1.0" encoding="UTF-8"?>
<!--Configuration后面的status，这个用于设置log4j2自身内部的信息输出，可以不设置，当设置成trace时，你会看到log4j2内部各种详细输出-->
<!--monitorInterval：Log4j能够自动检测修改配置 文件和重新配置本身，设置间隔秒数-->
<configuration monitorInterval="5" status="trace">
    <!--日志级别以及优先级排序: OFF > FATAL > ERROR > WARN > INFO > DEBUG > TRACE > ALL -->
    <!--变量配置-->
<Properties>
        <!-- 格式化输出：%date表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度 %msg：日志消息，%n是换行符-->
        <!-- %logger{36} 表示 Logger 名字最长36个字符 -->
<property name="LOG_PATTERN" value="%date{HH:mm:ss.SSS} 【%thread】 %-5level 【%logger{36}】 - %msg%n"/>
        <!-- 定义日志存储的路径 -->
<property name="FILE_PATH" value="E:\\logs\\test"/>
        <property name="FILE_NAME" value="springboot-test"/>
    </Properties>

    <appenders>

        <console name="Console" target="SYSTEM_OUT">
            <!--输出日志的格式-->
<PatternLayout pattern="${LOG_PATTERN}"/>
            <!--控制台只输出level及其以上级别的信息（onMatch），其他的直接拒绝（onMismatch）-->
<ThresholdFilter level="info" onMatch="ACCEPT" onMismatch="DENY"/>
        </console>

        <!--文件会打印出所有信息，这个log每次运行程序会自动清空，由append属性决定，适合临时测试用-->
<File name="Filelog" fileName="${FILE_PATH}/test.log" append="false">
            <PatternLayout pattern="${LOG_PATTERN}"/>
        </File>

        <!-- 这个会打印出所有的info及以下级别的信息，每次大小超过size，则这size大小的日志会自动存入按年份-月份建立的文件夹下面并进行压缩，作为存档-->
<RollingFile name="RollingFileInfo" fileName="${FILE_PATH}/info.log"
filePattern="${FILE_PATH}/${FILE_NAME}-INFO-%d{yyyy-MM-dd}_%i.log.gz">
            <!--控制台只输出level及以上级别的信息（onMatch），其他的直接拒绝（onMismatch）-->
<ThresholdFilter level="info" onMatch="ACCEPT" onMismatch="DENY"/>
            <PatternLayout pattern="${LOG_PATTERN}"/>
            <Policies>
                <!--interval属性用来指定多久滚动一次，默认是1 hour-->
<TimeBasedTriggeringPolicy interval="1"/>
                <SizeBasedTriggeringPolicy size="10MB"/>
            </Policies>
            <!-- DefaultRolloverStrategy属性如不设置，则默认为最多同一文件夹下7个文件开始覆盖-->
<DefaultRolloverStrategy max="15"/>
        </RollingFile>

        <!-- 这个会打印出所有的warn及以下级别的信息，每次大小超过size，则这size大小的日志会自动存入按年份-月份建立的文件夹下面并进行压缩，作为存档-->
<RollingFile name="RollingFileWarn" fileName="${FILE_PATH}/warn.log"
filePattern="${FILE_PATH}/${FILE_NAME}-WARN-%d{yyyy-MM-dd}_%i.log.gz">
            <!--控制台只输出level及以上级别的信息（onMatch），其他的直接拒绝（onMismatch）-->
<ThresholdFilter level="warn" onMatch="ACCEPT" onMismatch="DENY"/>
            <PatternLayout pattern="${LOG_PATTERN}"/>
            <Policies>
                <!--interval属性用来指定多久滚动一次，默认是1 hour-->
<TimeBasedTriggeringPolicy interval="1"/>
                <SizeBasedTriggeringPolicy size="10MB"/>
            </Policies>
            <!-- DefaultRolloverStrategy属性如不设置，则默认为最多同一文件夹下7个文件开始覆盖-->
<DefaultRolloverStrategy max="15"/>
        </RollingFile>

        <!-- 这个会打印出所有的error及以下级别的信息，每次大小超过size，则这size大小的日志会自动存入按年份-月份建立的文件夹下面并进行压缩，作为存档-->
<RollingFile name="RollingFileError" fileName="${FILE_PATH}/error.log"
filePattern="${FILE_PATH}/${FILE_NAME}-ERROR-%d{yyyy-MM-dd}_%i.log.gz">
            <!--控制台只输出level及以上级别的信息（onMatch），其他的直接拒绝（onMismatch）-->
<ThresholdFilter level="error" onMatch="ACCEPT" onMismatch="DENY"/>
            <PatternLayout pattern="${LOG_PATTERN}"/>
            <Policies>
                <!--interval属性用来指定多久滚动一次，默认是1 hour-->
<TimeBasedTriggeringPolicy interval="1"/>
                <SizeBasedTriggeringPolicy size="10MB"/>
            </Policies>
            <!-- DefaultRolloverStrategy属性如不设置，则默认为最多同一文件夹下7个文件开始覆盖-->
<DefaultRolloverStrategy max="15"/>
        </RollingFile>

    </appenders>

    <!--Logger节点用来单独指定日志的形式，比如要为指定包下的class指定不同的日志级别等。-->
    <!--然后定义loggers，只有定义了logger并引入的appender，appender才会生效-->
<loggers>

        <!--过滤掉spring和mybatis的一些无用的DEBUG信息-->
<logger name="org.mybatis" level="info" additivity="false">
            <AppenderRef ref="Console"/>
        </logger>
        <!--监控系统信息-->
        <!--若是additivity设为false，则 子Logger 只会在自己的appender里输出，而不会在 父Logger 的appender里输出。-->
<Logger name="org.springframework" level="info" additivity="false">
            <AppenderRef ref="Console"/>
        </Logger>

        <root level="info">
            <appender-ref ref="Console"/>
            <appender-ref ref="Filelog"/>
            <appender-ref ref="RollingFileInfo"/>
            <appender-ref ref="RollingFileWarn"/>
            <appender-ref ref="RollingFileError"/>
        </root>
    </loggers>

</configuration>

以上方式输出的方式是 PatternLayout

如果想输出的日志为json 格式，可以使用JsonLayout

<JsonLayout compact="true" locationInfo="true" complete="false" eventEol="true" pattern="${LOG_PATTERN}"/>

输出的结果如下

{"instant":{"epochSecond":1601168050,"nanoOfSecond":335000000},"thread":"http-nio-8080-exec-1","level":"INFO","loggerName":"org.springframework.web.servlet.DispatcherServlet","message":"Completed initialization in 17 ms","endOfBatch":false,"loggerFqcn":"org.apache.commons.logging.LogAdapter$Log4jLog","threadId":170,"threadPriority":5,"source":{"method":"initServletBean","file":"FrameworkServlet.java","line":547,"class":"org.springframework.web.servlet.FrameworkServlet"}}
{"instant":{"epochSecond":1601168050,"nanoOfSecond":418000000},"thread":"http-nio-8080-exec-1","level":"INFO","loggerName":"com.example.springboottest.test.TestController","message":"controller request come in http-nio-8080-exec-1","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","threadId":170,"threadPriority":5,"source":{"method":"sayHello","file":"TestController.java","line":27,"class":"com.example.springboottest.test.TestController"}}
{"instant":{"epochSecond":1601168050,"nanoOfSecond":418000000},"thread":"http-nio-8080-exec-1","level":"INFO","loggerName":"com.example.springboottest.test.service.impl.TestServiceImpl","message":"service request come in http-nio-8080-exec-1","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","threadId":170,"threadPriority":5,"source":{"method":"doTestService","file":"TestServiceImpl.java","line":14,"class":"com.example.springboottest.test.service.impl.TestServiceImpl"}}
{"instant":{"epochSecond":1601168050,"nanoOfSecond":419000000},"thread":"http-nio-8080-exec-1","level":"INFO","loggerName":"com.example.springboottest.test.service.impl.TestServiceImpl","message":"service inner request come in http-nio-8080-exec-1","endOfBatch":false,"loggerFqcn":"org.apache.logging.slf4j.Log4jLogger","threadId":170,"threadPriority":5,"source":{"method":"doTestServiceInner","file":"TestServiceImpl.java","line":20,"class":"com.example.springboottest.test.service.impl.TestServiceImpl"}}

======================================我是分割线===================================

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="error" monitorInterval="60">
    <Properties>
        <Property name="P_Layout" value="[%d{yyyy-MM-dd HH:mm:ss,SSS}][%c][%-5p][%traceId]%m%n"/>
        <Property name="TriggerSize" value="100MB"/>
        <Property name="imFlush" value="true"/>
    </Properties>
    <Appenders>
        <Console name="Console" target="SYSTEM_OUT">
            <PatternLayout pattern="[%d{yyyy-MM-dd HH:mm:ss,SSS}][%c][%-5p][%traceId]%m%n"/>
        </Console>
        <RollingRandomAccessFile name="thirdpartylog" immediateFlush="${imFlush}" fileName="/home/logs/log/!xxx!-thirdparty.log" filePattern="/home/logs/log/!xxx!-thirdparty.log_%d{yyyyMMddHHmmss}">
            <PatternLayout pattern="[%d{yyyy-MM-dd HH:mm:ss,SSS}][%c][%-5p][%traceId]%m%n"/>
            <Policies>
                <SizeBasedTriggeringPolicy size="${TriggerSize}"/>
                <CronTriggeringPolicy schedule="0 0 0 * * ?" evaluateOnStartup="true"/>
            </Policies>
            <Filters>
            </Filters>
        </RollingRandomAccessFile>
        <RollingRandomAccessFile name="locallog" immediateFlush="${imFlush}" fileName="/home/logs/log/!xxx!-local.log" filePattern="/home/logs/log/!xxx!-local.log_%d{yyyyMMddHHmmss}">
            <PatternLayout pattern="[%d{yyyy-MM-dd HH:mm:ss,SSS}][%c][%-5p][%traceId]%m%n"/>
            <Policies>
                <SizeBasedTriggeringPolicy size="${TriggerSize}"/>
                <CronTriggeringPolicy schedule="0 0 0 * * ?" evaluateOnStartup="true"/>
            </Policies>
            <Filters>
            </Filters>
        </RollingRandomAccessFile>
        <RollingRandomAccessFile name="alarmlog" immediateFlush="${imFlush}" fileName="/home/logs/log/!xxx!-alarm.log" filePattern="/home/logs/log/!xxx!-alarm.log_%d{yyyyMMddHHmmss}">
            <PatternLayout pattern="[%d{yyyy-MM-dd HH:mm:ss,SSS}][%c][%-5p][%traceId]%m%n"/>
            <Policies>
                <SizeBasedTriggeringPolicy size="${TriggerSize}"/>
                <CronTriggeringPolicy schedule="0 0 0 * * ?" evaluateOnStartup="true"/>
            </Policies>
            <Filters>
            </Filters>
        </RollingRandomAccessFile>
        <RollingRandomAccessFile name="servicelog" immediateFlush="${imFlush}" fileName="/home/logs/log/!xxx!-service.log" filePattern="/home/logs/log/!xxx!-service.log_%d{yyyyMMddHHmmss}">
            <PatternLayout pattern="[%d{yyyy-MM-dd HH:mm:ss,SSS}][%c][%-5p][%traceId]%m%n"/>
            <Policies>
                <SizeBasedTriggeringPolicy size="${TriggerSize}"/>
                <CronTriggeringPolicy schedule="0 0 0 * * ?" evaluateOnStartup="true"/>
            </Policies>
            <Filters>
            </Filters>
        </RollingRandomAccessFile>
        <RollingRandomAccessFile name="securitylog" immediateFlush="${imFlush}" fileName="/home/logs/log/!xxx!-security.log" filePattern="/home/logs/log/!xxx!-security.log_%d{yyyyMMddHHmmss}">
            <PatternLayout pattern="[%d{yyyy-MM-dd HH:mm:ss,SSS}][%c][%-5p][%traceId]%m%n"/>
            <Policies>
                <SizeBasedTriggeringPolicy size="${TriggerSize}"/>
                <CronTriggeringPolicy schedule="0 0 0 * * ?" evaluateOnStartup="true"/>
            </Policies>
            <Filters>
            </Filters>
        </RollingRandomAccessFile>
        <RollingRandomAccessFile name="batchlog" immediateFlush="${imFlush}" fileName="/home/logs/log/!xxx!-batch.log" filePattern="/home/logs/log/!xxx!-batch.log_%d{yyyyMMddHHmmss}">
            <PatternLayout pattern="[%d{yyyy-MM-dd HH:mm:ss,SSS}][%c][%-5p][%traceId]%m%n"/>
            <Policies>
                <SizeBasedTriggeringPolicy size="${TriggerSize}"/>
                <CronTriggeringPolicy schedule="0 0 0 * * ?" evaluateOnStartup="true"/>
            </Policies>
            <Filters>
            </Filters>
        </RollingRandomAccessFile>
    </Appenders>
    <Loggers>
        <Logger name="redislog" level="info" includeLocation="true" additivity="false">
            <AppenderRef ref="locallog"/>
            <AppenderRef ref="Console"/>
        </Logger>
        <Logger name="pushlog" level="info" includeLocation="true" additivity="false">
            <AppenderRef ref="locallog"/>
        </Logger>
        <Logger name="mongolog" level="info" includeLocation="true" additivity="false">
            <AppenderRef ref="locallog"/>
            <AppenderRef ref="Console"/>
        </Logger>
        <Logger name="opslog" level="info" includeLocation="true" additivity="false">
            <AppenderRef ref="locallog"/>
        </Logger>
        <Logger name="mqlog" level="info" includeLocation="true" additivity="false">
            <AppenderRef ref="locallog"/>
        </Logger>
        <Logger name="configlog" level="info" includeLocation="true" additivity="false">
            <AppenderRef ref="locallog"/>
            <AppenderRef ref="Console"/>
        </Logger>
        <Logger name="infolog" level="info" includeLocation="true" additivity="false">
            <AppenderRef ref="locallog"/>
            <AppenderRef ref="Console"/>
        </Logger>
        <Logger name="locallog" level="info" includeLocation="true" additivity="false">
            <AppenderRef ref="locallog"/>
            <AppenderRef ref="Console"/>
        </Logger>
        <Logger name="alarmlog" level="info" includeLocation="true" additivity="false">
            <AppenderRef ref="alarmlog"/>
            <AppenderRef ref="Console"/>
        </Logger>
        <Logger name="servicelog" level="info" includeLocation="true" additivity="false">
            <AppenderRef ref="servicelog"/>
            <AppenderRef ref="Console"/>
        </Logger>
        <Logger name="securitylog" level="info" includeLocation="true" additivity="false">
            <AppenderRef ref="securitylog"/>
        </Logger>
        <Logger name="batchlog" level="info" includeLocation="true" additivity="false">
            <AppenderRef ref="batchlog"/>
        </Logger>
        <Root level="ERROR" includeLocation="true">
            <AppenderRef ref="thirdpartylog"/>
        </Root>
    </Loggers>
</Configuration>

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