原因:
slf4j的版本和log4j的版本不匹配。
解决办法:
1.登陆该maven库网站: https://mvnrepository.com/search?q=slf4j
2.搜索slf4j,选择SLF4J LOG4J 12 Binding进入,选择你的版本进入
3.查找slf4j版本对应的log4j版本
4.修改Maven配置:注意org.slf4j的scope要去掉
<!-- https://mvnrepository.com/artifact/log4j/log4j --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-log4j12 --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.25</version> </dependency>
5.问题解决,脚本如下:
import org.apache.log4j.PropertyConfigurator import org.slf4j.{Logger, LoggerFactory} object TestLog4j { private val logger=LoggerFactory.getLogger(TestLog4j.getClass) def main(args: Array[String]): Unit = { //记录debug级别的信息 logger.debug("This is debug message.") //记录info级别的信息 logger.info("This is info message") //记录error级别的信息 logger.error("This is error message") } }
输出如下:
参考链接: