log4j - XML 配置 VS properties 配置

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properties 配置
XML 配置
Mapping关系

properties 配置

# root LOGGER (default logger). That means when no name specified/name cannot found when calling Logger.getLogger("any name"), would default call root logger.
# root LOGGER include two APPENDER (not LOGGER), which are APPENDER "file" and "admin"
log4j.rootLogger=INFO, file, admin

#define a new LOGGER named "file", which include "file" APPENDER
log4j.logger.file=DEBUG, fileAppender

#define a new LOGGER named "admin", which include "admin" APPENDER
log4j.logger.admin=DEBUG, adminAppender

#set "additivity" attribute for LOGGER "file" and "admin"
log4j.additivity.file=false
log4j.additivity.admin=false

#define a APPENDER which name is "file"
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=/home/nick/logging/file.log
log4j.appender.file.MaxFileSize=1MB
log4j.appender.file.MaxBackupIndex=1
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1} - %m%n

#define a APPENDER which name is "admin"
log4j.appender.admin=org.apache.log4j.RollingFileAppender
log4j.appender.admin.File=/home/nick/logging/admin.log
log4j.appender.admin.MaxFileSize=1MB
log4j.appender.admin.MaxBackupIndex=1
log4j.appender.admin.layout=org.apache.log4j.PatternLayout
log4j.appender.admin.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1} - %m%n

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XML 配置

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration><!--xmlns:log4j="http://jakarta.apache.org/log4j/"-->

    <!--
    #define a APPENDER which name is "stdout"
    -->
    <appender class="org.apache.log4j.ConsoleAppender" name="stdout">
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="[%d] [%X{hostname}] [%X{status}] [%t] %p %c{2} %m%n"/>
        </layout>
    </appender>

    <!--
    #define a APPENDER which name is "rollingFile"
    -->
    <appender name="rollingFile" class="org.apache.log4j.appender.TimeAndSizeRollingAppender">
        <param name="File" value="logs/${engine}plengine.log"/>
        <param name="DatePattern" value=".yyyy-MM-dd"/>
        <param name="MaxFileSize" value="50MB"/>
        <param name="DateRollEnforced" value="true"/>
        <param name="MaxRollFileCount" value="100"/>
        <param name="BufferedIO" value="false"/>
        <param name="RollOnStartup" value="true"/>
        <param name="CompressionAlgorithm" value="ZIP"/>
        <param name="CompressionMinQueueSize" value="3"/>
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="[%d] [%X{hostname}] [%X{status}] [%t] [%p] %c{2} %m%n"/>
        </layout>
    </appender>

    <!--
    #define a APPENDER which name is "rollingMonikerFile"
    -->
    <appender name="rollingMonikerFile" class="org.apache.log4j.appender.TimeAndSizeRollingAppender">
        <param name="File" value="logs/${engine}plengine-Moniker.log"/>
        <param name="DatePattern" value=".yyyy-MM-dd"/>
        <param name="MaxFileSize" value="50MB"/>
        <param name="DateRollEnforced" value="true"/>
        <param name="MaxRollFileCount" value="100"/>
        <param name="BufferedIO" value="false"/>
        <param name="RollOnStartup" value="true"/>
        <param name="CompressionAlgorithm" value="ZIP"/>
        <param name="CompressionMinQueueSize" value="3"/>
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="[%d] [%X{hostname}] [%X{status}] [%t] [%p] %c{2} %m%n"/>
        </layout>
    </appender>

    <!--
    #define a new LOGGER named "MonikerLogger", which include "rollingMonikerFile" APPENDER
    -->
    <logger name="MonikerLogger" additivity="false">
        <level value="INFO"/>
        <appender-ref ref="rollingMonikerFile" />
    </logger>

    <!--
    # root LOGGER (default logger). That means when no name specified/name cannot found when calling Logger.getLogger("any name"), would default call root logger.
    # root LOGGER include two APPENDER (not LOGGER), which are "stdout" and "rollingFile"
    -->
    <root>
        <level value="INFO"/>
        <appender-ref ref="stdout" />
        <appender-ref ref="rollingFile"/>
    </root>

</log4j:configuration>