在原有项目正常启动的情况下, 实现在控制台打印mapper包下SQL语句.
1.在pom.xml配置文件中添加两个依赖(缺一不可)
1 <!--日志包--> 2 <dependency> 3 <groupId>log4j</groupId> 4 <artifactId>log4j</artifactId> 5 <version>${log4j-version}</version> 6 </dependency> 7 8 <dependency> 9 <groupId>org.slf4j</groupId> 10 <artifactId>slf4j-log4j12</artifactId> 11 <version>${slf4j-version}</version> 12 </dependency> 版本:
1 <log4j-version>1.2.17</log4j-version> 2 <slf4j-version>1.7.25</slf4j-version>
2. 在log4j.properties配置文件中添加配置
1 log4j.logger.com.zzuli.mapper=DEBUG
完整的log4j.properties
1 log4j.rootCategory=ERROR, CONSOLE ,LOGFILE 2 3 log4j.logger.com.zzuli.mapper=DEBUG 4 5 log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender 6 log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout 7 log4j.appender.CONSOLE.layout.ConversionPattern=%C %d{YYYY-MM-dd hh:mm:ss} %m %n 8 9 log4j.appender.LOGFILE=org.apache.log4j.FileAppender 10 log4j.appender.LOGFILE.File=E:/my.log 11 log4j.appender.LOGFILE.Append=true 12 log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout 13 log4j.appender.LOGFILE.layout.ConversionPattern=%m %n 配置完以上两项, 即可实现在控制台打印SQL语句.
完.
来源：博客园
作者：hejjon
链接：https://www.cnblogs.com/hejjon/p/11488401.html