log4j对象转变日志级别可批量的转变所有级别，或是依据条件转变日志级别。
log4j配置文件：
log4j.rootLogger=ERROR,FILE,CONSOLE,EXECPTION
#log4j.appender.FILE=org.apache.log4j.RollingFileAppender
log4j.appender.FILE=org.apache.log4j.DailyRollingFileAppender
log4j.appender.FILE.File=${catalina.home}/logs/boss.log
log4j.appender.CONSOLE.Threshold=DEBUG
log4j.appender.FILE.Encoding=utf-8
#log4j.appender.FILE.MaxFileSize=10MB
#log4j.appender.FILE.MaxBackupIndex=100
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.ConversionPattern=[%d{yyyy-MM-dd HH:mm:ss,SSS}][%t][%l][%p]: %m%n
log4j.appender.EXECPTION=org.apache.log4j.DailyRollingFileAppender
log4j.appender.EXECPTION.File=${catalina.home}/logs/error.log
log4j.appender.EXECPTION.Threshold=ERROR
log4j.appender.EXECPTION.Encoding=utf-8
#log4j.appender.EXECPTION.MaxFileSize=10MB
#log4j.appender.EXECPTION.MaxBackupIndex=100
log4j.appender.EXECPTION.layout=org.apache.log4j.PatternLayout
log4j.appender.EXECPTION.layout.ConversionPattern=[%d{yyyy-MM-dd HH:mm:ss,SSS}][%t][%l][%p]: %m%n
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{HH:mm:ss,SSS}][%-5p][%t][%M] (%F:%L) - %m%n
log4j.appender.Requests=org.apache.log4j.RollingFileAppender
log4j.appender.Requests.File=${catalina.home}/logs/jotm.log
log4j.appender.Requests.MaxFileSize=100MB
log4j.appender.Requests.MaxBackupIndex=5
log4j.appender.Requests.Encoding=utf-8
log4j.appender.Requests.layout=org.apache.log4j.PatternLayout
log4j.appender.Requests.layout.ConversionPattern=%10r [%-5c{1}] %7p - %C{1}.%M(%L) : %m\n
#c3p0
log4j.logger.com.mchange.v2=ERROR
log4j.logger.com.opensymphony=ERROR
log4j.logger.org.apache=ERROR
log4j.logger.org.springframework=ERROR
log4j.logger.freemarker.cache=ERROR
#SqlMap logging configuration...
#DEBUG < INFO < WARN < ERROR < FATAL#
log4j.logger.com.miri.boss=DEBUG
log4j.logger.com.ibatis=ERROR
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=ERROR
log4j.logger.com.ibatis.common.jdbc.ScriptRunner=ERROR
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=ERROR
#log4j.logger.java.sql=INFO
log4j.logger.java.sql.Statement=ERROR
log4j.logger.java.sql.ResultSet=ERROR
log4j.logger.java.sql.PreparedStatement=ERROR
#json
log4j.org.apache.struts2=ERROR
log4j.logger.org.apache.struts2.json=ERROR
#ecside
log4j.logger.org.ecside.core.TableModelUtils=ERROR
# JOTM #
log4j.logger.org.objectweb.jotm=ERROR, Requests
log4j.additivity.org.objectweb.jotm=false
log4j.logger.org.objectweb.jotm.jta=ERROR, Requests
log4j.additivity.org.objectweb.jotm.jta=false
log4j.logger.org.objectweb.jotm.recovery=ERROR, Requests
log4j.additivity.org.objectweb.jotm.recovery=false
log4j.logger.org.objectweb.jotm.tests=ERROR, Requests
log4j.additivity.org.objectweb.jotm.tests=false
# CAROL #
log4j.logger.org.objectweb.carol=ERROR, Requests
log4j.additivity.org.objectweb.carol=false
log4j.logger.org.objectweb.carol.rmi=ERROR, Requests
log4j.additivity.org.objectweb.carol.rmi=false
log4j.logger.org.objectweb.carol.jndi=ERROR, Requests
log4j.additivity.org.objectweb.carol.jndi=false
