打印 Hibernate 日志

1、加载log4j插件。通过maven管理 http://mvnrepository.com/artifact/log4j/log4j，增加一下配置项

<dependency>
	<groupId>log4j</groupId>
	<artifactId>log4j</artifactId>
	<version>1.2.17</version>
</dependency>

2、编辑配置文件 log4j.properties

# 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
 
# Root logger option
log4j.rootLogger=INFO, stdout
 
log4j.logger.org.hibernate.SQL=DEBUG
log4j.logger.org.hibernate.type=ALL

具体项目可以参考官方说明 http://docs.jboss.org/hibernate/core/4.1/manual/en-US/html/ch03.html#configuration-logging

Table 3.9. Hibernate Log Categories