maven项目整合SSM配置log4j, 实现控制台打印SQL语句

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.

原文地址：https://www.cnblogs.com/hejjon/p/11488401.html