mybatis sql打印

今天想打印mybatis的sql，按照原来的思路配置，可是无法实现，最后，上网搜索，

从下面方法中找到，

<?xml version="1.0" encoding="UTF-8" ?>    
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"  
"http://mybatis.org/dtd/mybatis-3-config.dtd">  
  
<configuration>  
    <properties>  
        <property name="dialect" value="mysql" />  
    </properties>  
    <settings>  
        <setting name="logImpl" value="LOG4J" />    
    </settings>  
</configuration> 

参考网址：
http://843977358.iteye.com/blog/2259796