mybatis 版本：
<dependency> <groupid>org.mybatis</groupid> <artifactid>mybatis</artifactid> <version>3.4.6</version> </dependency>
使用slf4j-api进行日志输出, 日子实现使用logback，需要依赖，
<dependency> <groupid>org.slf4j</groupid> <artifactid>slf4j-api</artifactid> <version>1.7.25</version> </dependency> <dependency> <groupid>ch.qos.logback</groupid> <artifactid>logback-classic</artifactid> <version>1.2.3</version> </dependency>
在mybatis-config.xml 中增加如下配置,
<!--?xml version="1.0" encoding="UTF-8" ?--> <configuration> <!-- 配置全局属性 --> <settings> <!-- log --> <setting name="logImpl" value="SLF4J"> </setting></settings> </configuration>
logback.xml中增加如下配置,
<appender name="mybatis" class="ch.qos.logback.core.rolling.RollingFileAppender"> <!--See also http://logback.qos.ch/manual/appenders.html#RollingFileAppender--> <append>true</append> <file>${log.root}/logs/mybatis/mybatis.log</file> <encoder> <pattern>%d{"yyyy-MM-dd HH:mm:ss,SSS"} %-5level [%thread] %class{256}.%M %L - %msg%n</pattern> </encoder> <rollingpolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy"> <maxindex>3</maxindex> <filenamepattern>${log.root}/logs/mybatis/mybatis.log.%i</filenamepattern> </rollingpolicy> <triggeringpolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy"> <maxfilesize>1024KB</maxfilesize> </triggeringpolicy> </appender> <logger name="org.mybatis" level="DEBUG" additivity="false"> <appender-ref ref="mybatis"> </appender-ref></logger> <logger name="java.sql" level="DEBUG" additivity="false"> <appender-ref ref="mybatis"> </appender-ref></logger> <logger name="YOUR_DAO_PACKAGE" level="DEBUG" additivity="false"> <appender-ref ref="mybatis"> </appender-ref></logger>
其中 YOUR_DAO_PACKAGE是你的dao的包。
经过上述配置，你的mybatis将可以输出sql等关键信息到日志文件。