1 引入jar包：maven resposity 中 選擇logback classic module

<dependency>
    <groupId>ch.qos.logback</groupId>
    <artifactId>logback-classic</artifactId>
    <version>1.2.3</version>
</dependency>

2 添加logback.xml 配置文件

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>

    <appender name="rollingFile" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>d:/logs/carmall-manager.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>d:/logs/carmall-manager.%d{yyyy-MM-dd}.log</fileNamePattern>
        </rollingPolicy>
        <encoder>
            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>

    <!--  mapper 文件的包路徑-->
 

    <logger name="mapper" level="debug" />

    <!--log4jdbc -->
    <logger name="jdbc.sqltiming" level="debug"/>
    <logger name="com.ibatis" level="debug" />
    <logger name="com.ibatis.common.jdbc.SimpleDataSource" level="debug" />
    <logger name="com.ibatis.common.jdbc.ScriptRunner" level="debug" />
    <logger name="com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate"
            level="debug" />
    <logger name="java.sql.Connection" level="debug" />
    <logger name="java.sql.Statement" level="debug" />
    <logger name="java.sql.PreparedStatement" level="debug" />
    <logger name="java.sql.ResultSet" level="debug" />
    <root level="info">
        <appender-ref ref="console" />
        <appender-ref ref="cn.iautos.manager" />
        <appender-ref ref="com.ibatis" />
        <appender-ref ref="rollingFile" />
    </root>
</configuration>

　　最後輸出日誌

22:25:42,179 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting level of logger [java.sql.PreparedStatement] to DEBUG
22:25:42,179 |-INFO in ch.qos.logback.classic.joran.action.LoggerAction - Setting level of logger [java.sql.ResultSet] to DEBUG
22:25:42,179 |-INFO in ch.qos.logback.classic.joran.action.RootLoggerAction - Setting level of ROOT logger to INFO
22:25:42,179 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [console] to Logger[ROOT]
22:25:42,180 |-ERROR in ch.qos.logback.core.joran.action.AppenderRefAction - Could not find an appender named [cn.iautos.manager]. Did you define it below instead of above in the configuration file?
22:25:42,180 |-ERROR in ch.qos.logback.core.joran.action.AppenderRefAction - See http://logback.qos.ch/codes.html#appender_order for more details.
22:25:42,180 |-ERROR in ch.qos.logback.core.joran.action.AppenderRefAction - Could not find an appender named [com.ibatis]. Did you define it below instead of above in the configuration file?
22:25:42,180 |-ERROR in ch.qos.logback.core.joran.action.AppenderRefAction - See http://logback.qos.ch/codes.html#appender_order for more details.
22:25:42,180 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [rollingFile] to Logger[ROOT]
22:25:42,180 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction - End of configuration.
22:25:42,181 |-INFO in ch.qos.logback.classic.joran.JoranConfigurator@7d417077 - Registering current configuration as safe fallback point

22:25:42.649 [main] DEBUG mapper.UserMapperI.getUser - ==>  Preparing: select * from users where id=? 
22:25:42.704 [main] DEBUG mapper.UserMapperI.getUser - ==> Parameters: 1(Integer)
22:25:42.742 [main] DEBUG mapper.UserMapperI.getUser - <==      Total: 1
User{id=‘1‘, name=‘test‘, action=‘test‘}

最近在項目中添加日誌

如果是spring boot項目的話：
只要在application.properties裏面加上

logging.level.com.你的包名=true。就ok

slf4j + logback 輸出日誌：mybatis sql語句