转自：http://blog.csdn.net/snn1410/article/details/7848121，另，这位兄台写的也很详细：http://my249645546.iteye.com/blog/1416344

<?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>
<settings>
<!-- 这个配置使全局的映射器启用或禁用缓存 -->
<setting name="cacheEnabled" value="true" />
<!-- 允许 JDBC 支持生成的键。需要适合的驱动。如果设置为 true 则这个设置强制生成的键被使用，尽管一些驱动拒绝兼容但仍然有效（比如 Derby） -->
<setting name="useGeneratedKeys" value="true" />
<!-- 配置默认的执行器。SIMPLE 执行器没有什么特别之处。REUSE 执行器重用预处理语句。BATCH 执行器重用语句和批量更新 -->
<setting name="defaultExecutorType" value="REUSE" />
<!-- 全局启用或禁用延迟加载。当禁用时，所有关联对象都会即时加载。 -->
<setting name="lazyLoadingEnabled" value="true"/>
<!-- 设置超时时间，它决定驱动等待一个数据库响应的时间。 -->
<setting name="defaultStatementTimeout" value="25000"/>
</settings>

<!-- 别名配置 -->
<typeAliases>
<typeAlias alias="Renyuan" type="com.haso.bscs.po.Renyuan" />---po对象
<typeAlias alias="LoginView" type="com.haso.bscs.view.LoginView" /> --view对象
</typeAliases>

<!-- 指定映射器路径 -->
<mappers>
<mapper resource="com/haso/bscsserver/dao/RenyuanDao.xml" />

<mapper resource="com/haso/bscsserver/dao/CardPersonMessageDao.xml"/>

<mapper resource="com/haso/bscsserver/dao/InfoDao.xml" />

<mapper resource="com/haso/bscsserver/dao/VersionDao.xml" />

<mapper resource="com/haso/bscsserver/dao/CommvarsDao.xml" />

<mapper resource="com/haso/bscsserver/dao/TestDao.xml" />
<mapper resource="com/haso/bscsserver/dao/RizhiDao.xml" />

</mappers>
</configuration>

RenyuanDao.xml

************************************************************************************************************************

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <!-- 这里namespace必须是接口的路径，不然要运行的时候要报错 “is not known to the MapperRegistry”--> <mapper namespace="com.haso.bscsserver.dao.RenyuanDao"> <!-- 这里的id必须和接口中的方法名相同，不然运行的时候也要报错 --> <!-- <cache type="org.mybatis.caches.ehcache.LoggingEhcache"/> --> <cache type="org.mybatis.caches.ehcache.EhcacheCache"/> <parameterMap type="LoginView" id="parameterLoginMap"> <parameter property="name"/> <parameter property="usrpwd"/> <parameter property="ime"/> <parameter property="sim"/> </parameterMap> <parameterMap type="renyuanConditionView" id="parameterRenyuanMap"> <parameter property="id"/> <parameter property="orginalPass"/> <parameter property="pass"/> </parameterMap> <parameterMap type="renyuanLocationView" id="parameterLocation"> <parameter property="id"/> <parameter property="nowlat"/> <parameter property="nowlng"/> <parameter property="nowlocation"/> </parameterMap> <resultMap type="renyuanView" id="resultRenyuanViewMap" > <result property="id"/> <result property="name"/> <result property="sim"/> <result property="ime"/> <result property="usrpwd"/> <result property="longtitude"/> <result property="latitude"/> <result property="beizhu"/> <result property="tel"/> <result property="email"/> <result property="username"/> <result property="nowlat"/> <result property="nowlng"/> <result property="nowlocation"/> </resultMap> <resultMap type="Renyuan" id="resultRenyuanMap" > <result property="id"/> <result property="name"/> <result property="sim"/> <result property="ime"/> <result property="usrpwd"/> <result property="longtitude"/> <result property="latitude"/> <result property="beizhu"/> <result property="tel"/> <result property="email"/> <result property="username"/> <result property="nowlat"/> <result property="nowlng"/> <result property="nowlocation"/> </resultMap> <select id="findEntityById" resultMap="resultRenyuanMap" parameterType="int" useCache="true"> SELECT * FROM renyuan WHERE id=#{id} </select> <select id="findAllList" resultMap="resultRenyuanMap" useCache="true"> select * from renyuan </select> <select id="findEntityByUnique" resultMap="resultRenyuanMap" parameterMap="parameterLoginMap"> select * from renyuan where name=#{name} and usrpwd=#{usrpwd} and ime=#{ime} and sim=#{sim} </select> <select id="isOriginalPass" parameterMap="parameterRenyuanMap" resultMap="resultRenyuanViewMap" useCache="true"> select id,name,sim,ime,usrpwd,longtitude,latitude,beizhu,tel,email,username from renyuan where usrpwd = #{orginalPass} and id = #{id} </select> <update id="updatePassword" parameterMap="parameterRenyuanMap"> update renyuan set usrpwd = #{pass} where id = #{id} </update> <update id="updateNowlocation" parameterMap="parameterLocation"> update renyuan set nowlat = #{nowlat},nowlng = #{nowlng},nowlocation = #{nowlocation} where id = #{id} </update> </mapper>