<dependency>

      <groupId>log4j</groupId>

      <artifactId>log4j</artifactId>

      <version>1.2.12</version>

    </dependency>

<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">

<log4j:configuration xmlns:log4j='http://jakarta.apache.org/log4j/' >

    <appender name="STDOUT"

              class="com.apache.log4j.ConsoleAppender">

        <param name="Encoding" value="UTF-8" />

        <layout class="org.apache.log4j.PatternLayout">

            <param name="ConversionPattern" value="%-5p %d{MM-dd HH:mm:ss,SSS} %m (%f:%l) \n"/>

        </layout>

    </appender>

    <logger name="java.sql">

        <level value="debug" />

    </logger>

    <logger name="org.apache.ibatis">

        <level value="info" />

    </logger>

    <root>

        <level value="debug" />

        <appender-ref ref="STDOUT" />

    </root>

</log4j:configuration>

 <settings>

        <!--标准的日志-->

        <setting name="logImpl" value="STDOUT_LOGGING"/>

 </settings>