SSM框架

http://zy3381.iteye.com/blog/1675328

http://zy3381.iteye.com/blog/1673934

http://lspengjiang.iteye.com/blog/1156836

http://www.cnblogs.com/zhangnanblog/archive/2012/12/29/2838582.html

http://blog.csdn.net/flfna/article/details/4900323

http://haohaoxuexi.iteye.com/blog/1841033

mybatis_config.xml

<typeAliases>
<typeAlias alias="EnvirData" type="com.lopu.bean.system.SysUser" />

</typeAliases>

alias别名 与mapping.xml中的namespace对应

<mapper namespace="EnvirData">
<resultMap type="EnvirData" id="resultEnvirdata">

id与resultMap对应即可

<select id="findById"  resultMap="resultEnvirdata" parameterType="int">