log4j:WARN No appenders could be found for logger (org.apache.ibatis.logging.LogFactory)解决方案

本地sources文件夹下创建log4j.properties：

# Global logging configuration \u5F00\u53D1\u65F6\u5019\u5EFA\u8BAE\u4F7F\u7528 debug
log4j.rootLogger=DEBUG, stdout
# 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