如何添加log4j文档

很多小伙伴不知道如何添加log4j日志,我写了一个小模板供大家参考

1 首先在pom.xml中添加依赖

<dependency>
  <groupId>log4j</groupId>
  <artifactId>log4j</artifactId>
  <version>1.2.17</version>
</dependency>
<dependency>
  <groupId>org.slf4j</groupId>
  <artifactId>slf4j-api</artifactId>
  <version>1.7.25</version>
</dependency>
<dependency>
  <groupId>org.slf4j</groupId>
  <artifactId>slf4j-log4j12</artifactId>
  <version>1.7.25</version>
  <scope>test</scope>
</dependency>

2创建一个log4j.properties文件

# ERROR>WARN>INFO>DEBUG>TRACE

# Global logging configuration
log4j.rootLogger=TRACE, stdout
# MyBatis logging configuration...
log4j.logger.com.ujiuye.mybatis=TRACE


# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender

log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

测试一下就行了