mylog.xml在classpath下 内容是这样

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

<appender name="CONSOLE" 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>

    <!-- <filter class="org.apache.log4j.varia.LevelRangeFilter">
       <param name="levelMin" value="debug" />
       <param name="levelMax" value="warn" />
       <param name="AcceptOnMatch" value="true" />
    </filter> -->
</appender>
<root>
    <priority value="debug" />
    <appender-ref ref="CONSOLE" />
    <!-- <appender-ref ref="STDOUT" /> -->
</root>

</log4j:configuration>