输出指定类的log日志
log4j.logger.cn.com.ivisions.management.DocGWBean=INFO,MSG_FILE
log4j.appender.MSG_FILE = org.apache.log4j.RollingFileAppender
log4j.appender.MSG_FILE.File = ${catalina.base}/logs/msg.log
log4j.appender.MSG_FILE.Append = true
log4j.appender.MSG_FILE.MaxFileSize = 500KB
log4j.appender.MSG_FILE.MaxBackupIndex = 5
log4j.appender.MSG_FILE.layout = org.apache.log4j.PatternLayout
log4j.appender.MSG_FILE.layout.ConversionPattern = [%t] %p %-d{yyyy-MM-dd HH:mm:ss} %l | %m%n
