报错:
解决办法:
1、在src/main/resources目录下创建log4j.properties
内容:
hadoop.root.logger=DEBUG, console
log4j.rootLogger = DEBUG, console
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.target=System.out
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%d{yy/MM/dd HH:mm:ss} %p %c{2}: %m%n
2、在main函数的入口处加入:
BasicConfigurator.configure(); //自动快速地使用缺省Log4j环境