log4j 日志限制大小　拆分成30个　不按日期分日志　按大小拆分　按日期产生

转摘http://blog.csdn.net/hjm4702192/article/details/24292367?utm_source=tuicool&utm_medium=referral

先说一下按日期产生，不解释，大家都懂，这种方法的缺点就是很吃硬盘空间

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log4j.rootLogger=INFO,logfile,stdout

log4j.logger.java.sql=DEBUG,sqllog

#log4j.additivity.java.sql=false

#velocity print out

log4j.logger.org.apache.velocity=ERROR,velocityfile

log4j.additivity.org.apache.velocity=false

log4j.logger.org.springframework.web.servlet.mvc.annotation=false

#app print out

log4j.logger.com.hundsun.network=DEBUG

log4j.logger.com.hundsun.network.melody.common.profiler=DEBUG,profiler

log4j.additivity.com.hundsun.network.melody.common.profiler=false

#standout log appender #

log4j.appender.stdout=org.apache.log4j.ConsoleAppender

log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m%n

#common log appender #

log4j.appender.logfile=org.apache.log4j.DailyRollingFileAppender

log4j.appender.logfile.File=/WEB-INF/log/app.log

log4j.appender.logfile.append=true

log4j.appender.logfile.encoding=GB18030

log4j.appender.logfile.layout=org.apache.log4j.PatternLayout

log4j.appender.logfile.layout.ConversionPattern=%d %p [%c] - %m%n

#error log appender #

log4j.appender.errorfile=org.apache.log4j.DailyRollingFileAppender

log4j.appender.errorfile.File=/WEB-INF/log/error.log

log4j.appender.errorfile.Threshold=ERROR

log4j.appender.errorfile.append=true

log4j.appender.errorfile.encoding=GB18030

log4j.appender.errorfile.layout=org.apache.log4j.PatternLayout

log4j.appender.errorfile.layout.ConversionPattern=%d %p [%c] - %m%n

#sql log appender #

log4j.appender.sqllog=org.apache.log4j.DailyRollingFileAppender

log4j.appender.sqllog.File=/WEB-INF/log/sql.log

log4j.appender.sqllog.append=true

log4j.appender.sqllog.encoding=GB18030

log4j.appender.sqllog.layout=org.apache.log4j.PatternLayout

log4j.appender.sqllog.layout.ConversionPattern=%d %p [%c] - %m%n

#velocity log appender #

log4j.appender.velocityfile=org.apache.log4j.DailyRollingFileAppender

log4j.appender.velocityfile.File=/WEB-INF/log/velocity.log

log4j.appender.velocityfile.append=true

log4j.appender.velocityfile.encoding=GB18030

log4j.appender.velocityfile.layout=org.apache.log4j.PatternLayout

log4j.appender.velocityfile.layout.ConversionPattern=%d %p [%c] - %m%n

#profile appender #

log4j.appender.profiler=org.apache.log4j.DailyRollingFileAppender

log4j.appender.profiler.File=/WEB-INF/log/profler.log

log4j.appender.profiler.append=true

log4j.appender.profiler.encoding=GB18030

log4j.appender.profiler.layout=org.apache.log4j.PatternLayout

log4j.appender.profiler.layout.ConversionPattern=%d %p [%c] - %m%n

于是我们来解决一下这个问题，把日志的大小限在10240Ｋ,一共只许生成30个，循环覆盖

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log4j.rootLogger=INFO,logfile,stdout,errorfile

log4j.logger.java.sql=@log.level@,sqllog

log4j.additivity.java.sql=false

#velocity print out

log4j.logger.org.apache.velocity=ERROR,velocityfile

log4j.additivity.org.apache.velocity=false

#app print out

log4j.logger.com.hundsun.network=DEBUG

log4j.logger.com.hundsun.network.melody.common.profiler=@log.level@,profiler

log4j.additivity.com.hundsun.network.melody.common.profiler=false

#standout log appender #

log4j.appender.stdout=org.apache.log4j.ConsoleAppender

log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m%n

#common log appender #

log4j.appender.logfile=org.apache.log4j.RollingFileAppender

log4j.appender.logfile.File=/WEB-INF/log/app.log

log4j.appender.logfile.append=true

log4j.appender.logfile.encoding=GB18030

log4j.appender.logfile.layout=org.apache.log4j.PatternLayout

log4j.appender.logfile.layout.ConversionPattern=%d %p [%c] - %m%n

log4j.appender.logfile.MaxFileSize=10240KB

log4j.appender.logfile.MaxBackupIndex=30

#error log appender #

log4j.appender.errorfile=org.apache.log4j.RollingFileAppender

log4j.appender.errorfile.File=/WEB-INF/log/error.log

log4j.appender.errorfile.Threshold=ERROR

log4j.appender.errorfile.append=true

log4j.appender.errorfile.encoding=GB18030

log4j.appender.errorfile.layout=org.apache.log4j.PatternLayout

log4j.appender.errorfile.layout.ConversionPattern=%d %p [%c] - %m%n

log4j.appender.errorfile.MaxFileSize=10240KB

log4j.appender.errorfile.MaxBackupIndex=30

#sql log appender #

log4j.appender.sqllog=org.apache.log4j.RollingFileAppender

log4j.appender.sqllog.File=/WEB-INF/log/sql.log

log4j.appender.sqllog.append=true

log4j.appender.sqllog.encoding=GB18030

log4j.appender.sqllog.layout=org.apache.log4j.PatternLayout

log4j.appender.sqllog.layout.ConversionPattern=%d %p [%c] - %m%n

log4j.appender.sqllog.MaxFileSize=10240KB

log4j.appender.sqllog.MaxBackupIndex=30

#velocity log appender #

log4j.appender.velocityfile=org.apache.log4j.RollingFileAppender

log4j.appender.velocityfile.File=/WEB-INF/log/velocity.log

log4j.appender.velocityfile.append=true

log4j.appender.velocityfile.encoding=GB18030

log4j.appender.velocityfile.layout=org.apache.log4j.PatternLayout

log4j.appender.velocityfile.layout.ConversionPattern=%d %p [%c] - %m%n

log4j.appender.velocityfile.MaxFileSize=10240KB

log4j.appender.velocityfile.MaxBackupIndex=30

#profile appender #

log4j.appender.profiler=org.apache.log4j.RollingFileAppender

log4j.appender.profiler.File=/WEB-INF/log/profler.log

log4j.appender.profiler.append=true

log4j.appender.profiler.encoding=GB18030

log4j.appender.profiler.layout=org.apache.log4j.PatternLayout

log4j.appender.profiler.layout.ConversionPattern=%d %p [%c] - %m%n

log4j.appender.profiler.MaxFileSize=10240KB

log4j.appender.profiler.MaxBackupIndex=30