<dependency>

             <groupId>org.springframework.boot</groupId>

             <artifactId>spring-boot-starter-log4j</artifactId>

             <version>1.3.8.RELEASE</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="console" class="org.apache.log4j.ConsoleAppender">

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

            <param name="ConversionPattern" value="%d{HH:mm:ss.SSS\} [%t] %m%n" />

        </layout>

    </appender>

    <logger name="org.springframework" additivity="false">

        <level value ="ERROR"/>

        <appender-ref ref="console"/>

    </logger>

    <!-- 只打印sql -->

    <logger name="com.ebc.ghome.mapper">

        <level value ="DEBUG"/>

        <appender-ref ref="console"/>

    </logger>

    <!-- DEBUG < INFO < WARN < ERROR 没有定义的logger将会使用root logger -->

    <root>

        <level value="INFO" />

        <appender-ref ref="console" />

    </root>

</log4j:configuration>