Mybatis查询 注意 传入参数

Myfault solving：<select id="findUserByNameAndPasswd" resultType="com.xiuye.orm.User"parameterType="string">select * from user where username = #{0} andpassword=#{1}</select><select id="findUserByPhoneAndPasswd" resultType="com.xiuye.orm.User"parameterType="string">select * from user where phone = #{0} and password = #{1}</select><select id="findUserByEmailAndPasswd" resultType="com.xiuye.orm.User"parameterType="string">select * from user where email = #{0} andpassword=#{1}</select>

DAO层的函数方法 Public User selectUser(String name,String area);对应的Mapper.xml  <select id="selectUser" resultMap="BaseResultMap">    select  *  from user_user_t   where user_name = #{0} and user_area=#{1}</select>其中，#{0}代表接收的是dao层中的第一个参数，#{1}代表dao层中第二参数，更多参数一致往后加即可。此方法采用Map传多参数.Dao层的函数方法Public User selectUser(Map paramMap);对应的Mapper.xml<select id=" selectUser" resultMap="BaseResultMap">   select  *  from user_user_t   where user_name = #{userName，jdbcType=VARCHAR} and user_area=#{userArea,jdbcType=VARCHAR}</select>Service层调用Private User xxxSelectUser(){Map paramMap=new hashMap();paramMap.put(“userName”,”对应具体的参数值”);paramMap.put(“userArea”,”对应具体的参数值”);User user=xxx. selectUser(paramMap);}个人认为此方法不够直观，见到接口方法不能直接的知道要传的参数是什么。Dao层的函数方法Public User selectUser(@param(“userName”)Stringname,@param(“userArea”)String area);对应的Mapper.xml<select id=" selectUser" resultMap="BaseResultMap">   select  *  from user_user_t   where user_name = #{userName，jdbcType=VARCHAR} and user_area=#{userArea,jdbcType=VARCHAR}</select>