log4j.properties配置说明 1. log4j配置 # ALL,DEBUG,INFO,WARN,ERROR,FATAL,OFF LOG_LEVEL=INFO log4j.rootLogger=${LOG_LEVEL},CONSOLE,FILE,ERR # 打印日志到控制台 log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender log4j.appender.CONSOLE.Encoding=utf-8 log4j.appende