Log4j項目應用配置

    相信很多朋友在使用Log4j是多多少少會有些困惑，蛋蛋拿來項目中應用的log4j.xml希望可以幫助到大家，最主要的還是要真正瞭解Log4j：

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

    <!-- 控制檯輸出 -->
    <appender name="console" class="org.apache.log4j.ConsoleAppender">
        <param name="Encoding" value="UTF-8" /> 
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="[%d{yyyy-MM-dd HH\:mm\:ss}] %t %5p %c{2}: %m%n" />
        </layout>
    </appender>

    <!-- error日誌 -->
    <appender name="errorFile" class="org.apache.log4j.RollingFileAppender">
        <!-- 編碼爲UTF-8避免亂碼 -->
        <param name="Encoding" value="UTF-8" /> 
        <param name="Append" value="true" />
        <param name="MaxBackupIndex" value="10" />
        <param name="MaxFileSize" value="10MB" />
        <param name="Threshold" value="ERROR" />
        <param name="File" value="日誌存放位置" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="[%d{yyyy-MM-dd HH\:mm\:ss}] %t %5p %c{2}: %m%n" />
        </layout>
    </appender>

    <!-- info最高級別，打印所有輸出 -->
    <appender name="infoFile" class="org.apache.log4j.DailyRollingFileAppender">
        <!-- 編碼爲UTF-8避免亂碼 -->
        <param name="Encoding" value="UTF-8" /> 
        <param name="Threshold" value="INFO" />
        <param name="Append" value="true" />
        <param name="File" value="日誌存放位置" />
        <param name="DatePattern" value="'.'yyyy-MM-dd'.log'"></param>
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="[%d{yyyy-MM-dd HH\:mm\:ss}] %t %5p %c{2}: %m%n" />
        </layout>
    </appender>

    <root>
        <priority value="info" />
        <appender-ref ref="console" />
        <appender-ref ref="errorFile" />
        <appender-ref ref="infoFile" />
    </root>

</log4j:configuration>

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