log4j.property改为如下
### direct log messages to stdout ###
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
log4j.logger.org.hibernate=debug
log4j.logger.org.hibernate.hql.ast.AST=debug
#下面的两条配置非常重要,设置为trace后,将可以看到打印出sql中 ? 占位符的实际内容
#this is the most important config for showing parames like ?
log4j.logger.org.hibernate.SQL=trace
log4j.logger.org.hibernate.type=trace
#above two configs
log4j.logger.org.hibernate.tool.hbm2ddl=debug
log4j.logger.org.hibernate.hql=debug
log4j.logger.org.hibernate.cache=debug
log4j.logger.org.hibernate.transaction=debug
log4j.logger.org.hibernate.jdbc=debug
log4j.logger.org.hibernate.connection.DriverManagerConnectionProvider=trace
log4j.rootLogger=warn, stdout
log4j.logger.org.hibernate.type.descriptor.sql.BasicBinder=TRACE