Log4j2.xml配置详解

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<?xml version="1.0" encoding="UTF-8"?>  <!-- status=debug 可以查看log4j的装配过程 -->  <configuration status="off" monitorInterval="300">      <properties>          <property name="LOG_HOME">/Users/td/Documents/Tools/apache-tomcat-8.5.4/bin/devLog</property>        <property name="BACKUP_HOME">{LOG_HOME}/backup</property>          <property name="SERVER_NAME">fingerprint</property>    </properties>    <appenders>        <!-- 定义控制台输出 -->          <Console  name="Console" target="SYSTEM_OUT" follow="true">            <PatternLayout pattern="[fingerprint-console] %date{yyyy-MM-dd HH:mm:ss.SSS} %level [%thread][%file:%line] - %msg%n" />        </Console >        <!-- 程序员调试日志 -->          <RollingRandomAccessFile name="DevLog" append="true"            fileName="${LOG_HOME}/${SERVER_NAME}"            filePattern="${LOG_HOME}/${SERVER_NAME}.%d{yyyy-MM-dd-HH}.log">            <PatternLayout pattern="[fingerprint] %date{yyyy-MM-dd HH:mm:ss.SSS} %level [%thread][%file:%line] - %msg%n" />              <Policies>                <TimeBasedTriggeringPolicy interval="1" modulate="true" />              </Policies>        </RollingRandomAccessFile>          <!-- 失败数据日志 -->          <RollingRandomAccessFile name="ErrorData" append="true"           fileName="${LOG_HOME}/ErrorData/${SERVER_NAME}"            filePattern="${LOG_HOME}/ErrorData/${SERVER_NAME}.%d{yyyy-MM-dd-HH}.log">            <PatternLayout pattern="%date{yyyy-MM-dd HH:mm:ss.SSS} - %msg%n" />            <Policies>                  <!-- TimeBased Triggering Policy基于时间的触发策略。该策略主要是完成周期性的log文件封存工作。有两个参数：interval，integer型，指定两次封存动作之间的时间间隔。单位:以日志的命名精度来确定单位，比如上面的filePattern中的yyyy-MM-dd-HH 单位为小时，yyyy-MM-dd-HH-mm 单位为分钟modulate，boolean型，说明是否对封存时间进行调制。若modulate=true，则封存时间将以0点为边界进行偏移计算。比如，modulate=true，interval=4hours，那么假设上次封存日志的时间为03:00，则下次封存日志的时间为04:00，之后的封存时间依次为08:00，12:00，16:00，。。。-->                <TimeBasedTriggeringPolicy interval="1" modulate="true" />            </Policies>          </RollingRandomAccessFile>        <!-- 无法解析数据日志 -->          <RollingRandomAccessFile name="UnparseData" append="true"           fileName="${LOG_HOME}/UnparseData/${SERVER_NAME}"            filePattern="${LOG_HOME}/UnparseData/${SERVER_NAME}.%d{yyyy-MM-dd-HH}.log">            <PatternLayout pattern="%date{yyyy-MM-dd HH:mm:ss.SSS} - %msg%n" />            <Policies>                  <TimeBasedTriggeringPolicy interval="1" modulate="true" />            </Policies>          </RollingRandomAccessFile>        <!-- KafkaConsumer日志数据 -->        <RollingRandomAccessFile name="KafkaConsumer" append="true"                                 fileName="${LOG_HOME}/KafkaConsumer/${SERVER_NAME}"                                 filePattern="${LOG_HOME}/KafkaConsumer/${SERVER_NAME}.%d{yyyy-MM-dd-HH}.log">            <PatternLayout pattern="%date{yyyy-MM-dd HH:mm:ss.SSS} - %msg%n" />            <Policies>                <TimeBasedTriggeringPolicy interval="1" modulate="true" />            </Policies>        </RollingRandomAccessFile>    </appenders>      <loggers>          <!-- 3rdparty Loggers -->          <logger name="slf4j2" level="ERROR" />        <logger name="org.springframework.core" level="ERROR" />          <logger name="org.springframework.beans" level="ERROR" />          <logger name="org.springframework.context" level="ERROR" />          <logger name="org.springframework.web" level="ERROR" />        <logger name="com.alibaba.dubbo" level="${logger.level}" />        <logger name="org.hibernate" level="ERROR" />        <logger name="com.mchange.v2" level="ERROR" />        <logger name="org.eclipse.jetty" level="ERROR" />       <logger name="org.apache.zookeeper" level="${logger.level}" />        <!--收集下面logger标签的数据流日志的。logger的additivity属性要设置为true，这样才能打印在root的appender中 -->        <!--一些没有定义的logger的name也会输出在root的appender文件下。比如：        public static final Logger unparseLogger = LoggerFactory.getLogger("serializeTools.class");        serializeTools.class类的包名没有定义<logger name> 那么他就会在输出在root下的appender        -->        <root level="debug">            <appender-ref ref="DevLog" />            <appender-ref ref="Console" />        </root>        <logger name="com.embd.fingerprint.record" level="info">           <appender-ref ref="ErrorData" />          </logger>        <!--由public static final Logger unparseLogger = LoggerFactory.getLogger("UnparseData");        定义日志级别大于info的， info/warn/ERROR/FATAL会被输出到下面的appender。        -->        <logger name="UnparseData" level="info" additivity="false">           <appender-ref ref="UnparseData" />          </logger>        <!--public static final Logger KafkaConsumerLogger = LoggerFactory.getLogger("MyKafkaConsumer.class");        MyKafkaConsumer的类名为com.embd.fingerprint.kafka.client.MyKafkaConsumer输出时就会输出到下面appender中-->        <logger name="com.embd.fingerprint.kafka.client.MyKafkaConsumer" level="debug" additivity="false">            <appender-ref ref="KafkaConsumer"/>        </logger>    </loggers>  </configuration>
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