记录下log4j的两种配置方式

XML文件配置

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

    <!-- 输出到控制台 -->
    <appender name="CONSOLE_APPENDER" class="org.apache.log4j.ConsoleAppender">
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="[%d{dd HH:mm:ss,SSS} %-5p] [%t] %c{2} - %m%n" />
        </layout>

        <!--过滤器设置输出的级别 -->
        <filter class="org.apache.log4j.varia.LevelRangeFilter">
            <param name="levelMin" value="debug" />
            <param name="levelMax" value="warn" />
            <param name="AcceptOnMatch" value="true" />
        </filter>
    </appender>

    <!-- 系统执行日志 -->
    <appender name="SYSTEM_APPENDER" class="org.apache.log4j.RollingFileAppender">
        <param name="File" value="${user.home}/logs/bingu/sys_run.log" /><!-- 
            设置日志输出文件名称 -->
        <param name="DatePattern" value="'.'yyyy-MM-dd'.log'" />
        <!-- 设置是否在又一次启动服务时。在原有日志的基础加入新日志 -->
        <param name="Append" value="true" />
        <param name="MaxBackupIndex" value="10" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%p (%c:%L)- %m%n" />
        </layout>
    </appender>
    <logger name="SYSTEM" additivity="false">
    <priority value="debug" />
        <appender-ref ref="SYSTEM_APPENDER" />
    </logger>

    <!-- error -->
    <appender name="ERROR_APPENDER" class="org.apache.log4j.RollingFileAppender">
        <param name="File" value="${user.home}/logs/bingu/error.log" />
        <param name="Append" value="true" />
        <param name="Threshold" value="ERROR" />
        <param name="MaxFileSize" value="1024KB" />
        <param name="MaxBackupIndex" value="1" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d %-5p %l - %m%n" />
        </layout>
    </appender>
    <logger name="ERROR" additivity="false">
        <priority value="info" />
        <appender-ref ref="ERROR_APPENDER" />
    </logger>

    <!-- 方法执行时间统计 -->
    <appender name="ALL_METHODS_RUNTIME_APPENDER" class="org.apache.log4j.DailyRollingFileAppender">
        <param name="File" value="${user.home}/logs/bingu/method_runtime.log" />
        <param name="DatePattern" value="'.'yyyy-MM-dd'.log'" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="[%d{MMdd HH:mm:ss SSS} %-5p] [%t] %c{3} - %m%n" />
        </layout>
    </appender>
    <logger name="ALL_METHODS_RUNTIME" additivity="false">
        <priority value="info" />
        <appender-ref ref="ALL_METHODS_RUNTIME_APPENDER" />
    </logger>

    <!-- web -->
    <appender name="WEB_APPENDER" class="org.apache.log4j.DailyRollingFileAppender">
        <param name="encoding" value="UTF-8" />
        <param name="File" value="${user.home}/logs/bingu/web.log" />
        <param name="DatePattern" value="'.'yyyy-MM-dd'.log'" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss.SSS} %t %5p [%c:%L] - %m%n" />
        </layout>
    </appender>
    <category name="com.bingu.web" additivity="false">
        <level value="info" />
        <appender-ref ref="WEB_APPENDER" />
    </category>

    <!-- service -->
    <appender name="SERVICE_APPENDER" class="org.apache.log4j.DailyRollingFileAppender">
        <param name="encoding" value="UTF-8" />
        <param name="File" value="${user.home}/logs/bingu/service.log" />
        <param name="DatePattern" value="'.'yyyy-MM-dd'.log'" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss.SSS} %t %5p [%c:%L] - %m%n" />
        </layout>
    </appender>
    <category name="com.bingu.bll" additivity="false">
        <level value="info" />
        <appender-ref ref="SERVICE_APPENDER" />
    </category>

    <!-- dao -->
    <appender name="DAO_APPENDER" class="org.apache.log4j.DailyRollingFileAppender">
        <param name="encoding" value="UTF-8" />
        <param name="File" value="${user.home}/logs/bingu/dao.log" />
        <param name="DatePattern" value="'.'yyyy-MM-dd'.log'" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss.SSS} %t %5p [%c:%L] - %m%n" />
        </layout>
    </appender>
    <category name="com.bingu.dal" additivity="false">
        <level value="info" />
        <appender-ref ref="DAO_APPENDER" />
    </category>

    <!-- util -->
    <appender name="UTIL_APPENDER" class="org.apache.log4j.DailyRollingFileAppender">
        <param name="encoding" value="UTF-8" />
        <param name="File" value="${user.home}/logs/bingu/util.log" />
        <param name="DatePattern" value="'.'yyyy-MM-dd'.log'" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss.SSS} %t %5p [%c:%L] - %m%n" />
        </layout>
    </appender>
    <category name="com.bingu.util" additivity="false">
        <level value="info" />
        <appender-ref ref="UTIL_APPENDER" />
    </category>


    <root>
        <priority value="debug" />
        <appender-ref ref="CONSOLE_APPENDER" />
        <appender-ref ref="SYSTEM" />
        <appender-ref ref="ERROR" />
    </root>

</log4j:configuration>

.properties文件配置

log4j.rootLogger=info,file  

log4j.appender.file=org.apache.log4j.DailyRollingFileAppender  
log4j.appender.file.DatePattern='-'yyyy-MM-dd  
log4j.appender.file.File=logs/log.txt  
log4j.appender.file.Append=true
log4j.appender.file.layout=org.apache.log4j.PatternLayout  
log4j.appender.file.layout.ConversionPattern=[%-5p] %d %37c %3x - %m%n 

log4j.logger.org.springframework.web.servlet.handler.SimpleMappingExceptionResolver=WARN