MyBatis return list very smart very simple answer, only need to configure Resultmap for type conversion, you DAO method directly write the return value list< corresponding object> on the line AH

MyBatis return list very smart very simple answer, only need to configure Resultmap for type conversion, you DAO method directly write the return value list< corresponding object> on the line AH

Dao method      Public params ) {        if(paramsnull) {            paramsnew Hashmap<string, object>();        }                 return  " Selectsimplemulti " params );    }

The corresponding MAPPER.XML configuration SQL statement

<resultmap id="Baseresultmap"Type="User"extends="Simpleresultmap"> <id property="UID"column="UID"/> <result property="Unionid"column="Unionid"/> <result property="OpenID"column="OpenID"/> <result property=" Age"column=" Age"/> <result property="Birthday"column="Birthday"/> <result property="Sex"column="Sex"/> <result property="Phone"column="Phone"/> <result property="Email"column="Email"/> <result property="QQ"column="QQ"/> <result property="WeChat"column="WeChat"/> <result property="Province"column="Province"/> <result property=" City"column=" City"/> <result property="Country"column="Country"/> <result property="Channel"column="Channel"/> <result property="Password"column="Password"/> <!--there are already simpleresultmap in the<result property="Nickname"column="Nickname"/> <result property="Headimgurl"column="Headimgurl"/> <result property="AppID"column="AppID"/> <result property="Password"column="Password"/>--<result property="backgroundimg"column="backgroundimg"/> <result property="Description"column="Description"/> <result property="Createtime"column="Create_time"/> </resultMap> <resultmap id="Simpleresultmap"Type="User"> <id property="UID"column="UID"/> <result property="Nickname"column="Nickname"/> <result property="Headimgurl"column="Headimgurl"/> </resultMap>

<select id= "Selectsimplemulti" resultmap= "Simpleresultmap" >
Select UID, nickname, Headimgurl from Tbl_user where
<trim prefixoverrides= "and" >
<if test= "Phone! = null" >
and phone = #{phone}
</if>
<if test= "Uidlist! = null and UID = = NULL" >
and UID in (
<foreach collection= "uidlist" item= "Item" separator= "," >
#{item}
</foreach>
)
</if>
<if test= "uidlist = = null and UID! = NULL" >
and uid = #{uid}
</if>
</trim>
</select>

MyBatis return list very smart very simple answer, only need to configure Resultmap for type conversion, you DAO method directly write the return value list< corresponding object> on the line AH