log4j mybatis打印sql语句

1.如果是log4j.xml则添加
<category name="java.sql">
<priority value="debug" />
</category>
<category name="com.ibatis">
<priority value="debug" />
</category>

2.如果是log4j.properties则添加
log4j.logger.com.ibatis = DEBUG 
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource = DEBUG 
log4j.logger.com.ibatis.common.jdbc.ScriptRunner = DEBUG 
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate = DEBUG 
log4j.logger.java.sql.Connection = DEBUG 
log4j.logger.java.sql.Statement = DEBUG 
log4j.logger.java.sql.PreparedStatement = DEBUG
log4j.logger.java.sql.ResultSet = DEBUG