tomcat+log4j+日志格式

Question

最近一个项目对tomcat日志有要求，以前只是一个文件，导致文件太大，现在要求日志文件要按日生成，并且最大不能超过50M，超过50M则要重新生成一个日志文件，日志文件名要包含当天日期，如2009-05-12生成90M日志文件，则要生成类似：tomcat_log_2009-05-12.txt01(50M),tomcat_log_2009-05-12.txt02;（类似这样的，名称只要包含日期就行），有哪为高人能够指点小弟一二，不胜感激

Answer 1

[code="java"]<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">

<appender name="STDOUT" class="org.apache.log4j.ConsoleAppender">
    <layout class="org.apache.log4j.PatternLayout">
        <param name="ConversionPattern"
            value="%d{yyyy-MM-dd HH:mm:ss} %p : %m%n @ %l%n" />
    </layout>
</appender>

<appender name="INFO"
    class="org.apache.log4j.DailyRollingFileAppender">
    <param name="File" value="c:\\CC.infoService_infoLog.txt" />
    <param name="Append" value="true" />
    <param name="DatePattern" value="'.'yyyy-MM-dd" />
    <layout class="org.apache.log4j.PatternLayout">
        <param name="ConversionPattern"
            value="%d{HH:mm:ss} %p : %m%n" />
    </layout>
    <filter class="org.apache.log4j.varia.LevelRangeFilter">
        <param name="LevelMin" value="INFO" />
        <param name="LevelMax" value="INFO" />
    </filter>
</appender>

<appender name="WARN"
    class="org.apache.log4j.DailyRollingFileAppender">
    <param name="File" value="c:\\CC.infoService_warnLog.txt" />
    <param name="Append" value="true" />
    <param name="DatePattern" value="'.'yyyy-MM-dd" />
    <layout class="org.apache.log4j.PatternLayout">
        <param name="ConversionPattern"
            value="%d{HH:mm:ss} %p : %m%n" />
    </layout>
    <filter class="org.apache.log4j.varia.LevelRangeFilter">
        <param name="LevelMin" value="WARN" />
        <param name="LevelMax" value="WARN" />
    </filter>
</appender>

<appender name="ERROR"
    class="org.apache.log4j.DailyRollingFileAppender">
    <param name="File" value="c:\\CC.infoService_errorLog.txt" />
    <param name="Append" value="true" />
    <param name="DatePattern" value="'.'yyyy-MM-dd" />
    <layout class="org.apache.log4j.PatternLayout">
        <param name="ConversionPattern"
            value="%d{HH:mm:ss} %p : %m%n" />
    </layout>
    <filter class="org.apache.log4j.varia.LevelRangeFilter">
        <param name="LevelMin" value="ERROR" />
        <param name="LevelMax" value="ERROR" />
    </filter>
</appender>

<root>
    <priority value="INFO" />
    <appender-ref ref="STDOUT" />
    <appender-ref ref="INFO" />
    <appender-ref ref="WARN" />
    <appender-ref ref="ERROR" />
</root>

/log4j:configuration
[/code]