简单分析下mybatis中mapper文件中小知识

<?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">
<mapper namespace="*.mapper.IEInvoiceNumPoolMapper" >   //namespace中对应的是dao层接口，具体到接口名
    <resultMap id="BaseResultMap" type="*.EInvoice.EINumPoolDTO" > //resultMmap中对应的是实体类，具体到实体类名
        <id column="EINUMPOOLID" property="EINUMPOOLID" jdbcType="VARCHAR" />
        <result column="ADMDIVID" property="ADMDIVID" jdbcType="BIGINT" />
        <result column="BillTypeID" property="BillTypeID" jdbcType="BIGINT" />
        <result column="YEAR" property="YEAR" jdbcType="VARCHAR" />
        <result column="STARTEINUM" property="STARTEINUM" jdbcType="VARCHAR" />
        <result column="ENDEINUM" property="ENDEINUM" jdbcType="VARCHAR" />
        <result column="CurrentlyNum" property="CurrentlyNum" jdbcType="VARCHAR" />
    </resultMap>
    <sql id="Base_Column_List" >
      EINUMPOOLID, ADMDIVID, BillTypeID,YEAR,STARTEINUM,ENDEINUM,CurrentlyNum
  </sql>

<select id="selectByYear" resultMap="BaseResultMap" parameterType="java.lang.String" > //id对应的就是dao层接口里的方法名，必须一一对应
    select
    <include refid="Base_Column_List" />
    from t_fseinumpool
    where YEAR= #{year}
</select>

简单写一下，防止以后遗忘