1，添加依赖
<dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.5</version> <scope>test</scope> </dependency>2.添加文件log4j.properties
log4j.rootLogger=INFO,console,dailyFile # TODO 发布到阿里云记得添加，另外控制台不输出(只输出warn或者error信息) log4j.logger.org.mybatis = info log4j.logger.com.mapper=debug log4j.appender.console=org.apache.log4j.ConsoleAppender log4j.appender.console.encoding=UTF-8 log4j.appender.console.layout=org.apache.log4j.PatternLayout log4j.appender.console.layout.ConversionPattern=%-d{MM-dd HH:mm:ss} [%c] - [%p] %m%n # 定期滚动日志文件，每天都会生成日志 log4j.appender.dailyFile=org.apache.log4j.DailyRollingFileAppender log4j.appender.dailyFile.encoding=UTF-8 log4j.appender.dailyFile.Threshold=INFO,debug # TODO 本地日志地址，正式环境请务必切换为阿里云地址 log4j.appender.dailyFile.File=D:/JAVA/logs/log.log4j log4j.appender.dailyFile.DatePattern='.'yyyy-MM-dd log4j.appender.dailyFile.layout=org.apache.log4j.PatternLayout log4j.appender.dailyFile.layout.ConversionPattern=%-d{MM-dd HH:mm:ss} [%c] - [%p] %m%n
