一、首先引入三个包
log4j是slf4j-api的一个实现,而slf4j-log4j是他们的一个桥梁。
二、在src下添加log4j.properties即可
#
# Hibernate, Relational Persistence for Idiomatic Java
#
# License: GNU Lesser General Public License (LGPL), version 2.1 or later.
# See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
#
#设定stdout输出平台
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n
#lelve是定义的输出级别,低于该级别的将不会输出,主要级别有OFF、ALL、FATAL、ERROR、WARN、INFO、DEBUG或自定义级别,
#其中OFF设定的话将不输出任何信息,ALL设定的话将输出所有信息;另外5个的级别FATAL>ERROR>WARN>INFO>DEBUG,如果你的
#lenel设定为INFO,那么不能输出DEBUG信息;
log4j.rootLogger=info, stdout
log4j.logger.org.hibernate=info
#log4j.logger.org.hibernate=warn
log4j.logger.org.hibernate.ejb=info
log4j.logger.org.hibernate.ejb.packaging=info
log4j.logger.org.hibernate.reflection=info
#log4j.logger.org.hibernate.engine.Cascades=warn
#log4j.logger.org.hibernate.hql=warn
### log just the SQL
log4j.logger.org.hibernate.SQL=debug
### log JDBC bind parameters ###
log4j.logger.org.hibernate.type=trace
log4j.logger.org.hibernate.type.descriptor.sql=trace
### log schema export/update ###
log4j.logger.org.hibernate.tool.hbm2ddl=info
### log HQL parse trees
#log4j.logger.org.hibernate.hql=warn
### log cache activity ###
#log4j.logger.org.hibernate.cache=warn
### log JDBC resource acquisition
#log4j.logger.org.hibernate.jdbc=warn
### enable the following line if you want to track down connection ###
### leakages when using DriverManagerConnectionProvider ###
#log4j.logger.org.hibernate.connection.DriverManagerConnectionProvider=trace
### When entity copy merge functionality is enabled using:
### hibernate.event.merge.entity_copy_observer=log, the following will
### provide information about merged entity copies.
#log4j.logger.org.hibernate.event.internal.EntityCopyAllowedLoggedObserver=warn
log4j.logger.org.hibernate.userguide=debug