SSH框架學習（五、加入log4j）

原文轉自：http://blog.csdn.net/wuyt2008/article/details/8244195

log4j是個很多人喜歡用的日誌工具，隨大流咯。

log4j的最新版是2.0-beat3，穩妥起見，我用了log4j 1.2.17，下載地址：http://logging.apache.org/log4j/1.2/download.html

導入包，在src目錄下添加log4j的配置文件：log4j.properties，下面這個是網絡上下載來的，看起來不錯。

#------------------------------------------------------------------------------
#
#  The following properties set the logging levels and log appender.  The
#  log4j.rootCategory variable defines the default log level and one or more
#  appenders.  For the console, use 'S'.  For the daily rolling file, use 'R'.
#  For an HTML formatted log, use 'H'.
#
#  To override the default (rootCategory) log level, define a property of the
#  form (see below for available values):
#
#        log4j.logger. =
#
#    Available logger names:
#      TODO
#
#    Possible Log Levels:
#      FATAL, ERROR, WARN, INFO, DEBUG
#
#------------------------------------------------------------------------------
log4j.rootCategory=INFO, S

log4j.logger.com.dappit.Dapper.parser=ERROR
log4j.logger.org.w3c.tidy=FATAL

#------------------------------------------------------------------------------
#
#  The following properties configure the console (stdout) appender.
#  See http://logging.apache.org/log4j/docs/api/index.html for details.
#
#------------------------------------------------------------------------------
log4j.appender.S = org.apache.log4j.ConsoleAppender
log4j.appender.S.layout = org.apache.log4j.PatternLayout
log4j.appender.S.layout.ConversionPattern = %d{yyyy-MM-dd HH:mm:ss} %c{1} [%p] %m%n

#------------------------------------------------------------------------------
#
#  The following properties configure the Daily Rolling File appender.
#  See http://logging.apache.org/log4j/docs/api/index.html for details.
#
#------------------------------------------------------------------------------
log4j.appender.R = org.apache.log4j.DailyRollingFileAppender
log4j.appender.R.File = logs/bensApps.log
log4j.appender.R.Append = true
log4j.appender.R.DatePattern = '.'yyy-MM-dd
log4j.appender.R.layout = org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern = %d{yyyy-MM-dd HH:mm:ss} %c{1} [%p] %m%n

#------------------------------------------------------------------------------
#
#  The following properties configure the Rolling File appender in HTML.
#  See http://logging.apache.org/log4j/docs/api/index.html for details.
#
#------------------------------------------------------------------------------
log4j.appender.H = org.apache.log4j.RollingFileAppender
log4j.appender.H.File = logs/bensApps.html
log4j.appender.H.MaxFileSize = 100KB
log4j.appender.H.Append = false
log4j.appender.H.layout =org.apache.log4j.HTMLLayout

在hibernate的配置裏面，添加

<property name="show_sql">true</property>
<property name="format_sql">true</property>

這樣，就能在控制檯顯示sql語句了，而且還排了下版。