log4j.properties资源文件全文
log4j.rootLogger=INFO,ERROR,console
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%-5p %d [%F,%L] - %m%n