build/classes/com/mapper/PayMapper.xml

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<?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="com.dao.PayDao" >
  <resultMap id="BaseResultMap" type="com.entity.Pay" >
    <id column="payid" property="payid" jdbcType="INTEGER" />
    <result column="paymoney" property="paymoney" jdbcType="DOUBLE" />
    <result column="paytime" property="paytime" jdbcType="VARCHAR" />
    <result column="mbid" property="mbid" jdbcType="INTEGER" />
    <result column="paytype" property="paytype" jdbcType="VARCHAR" />
  </resultMap>
  <sql id="Base_Column_List" >
    payid, paymoney, paytime, mbid, paytype
  </sql>
  <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
    select 
    <include refid="Base_Column_List" />
    from pay
    where payid = #{payid,jdbcType=INTEGER}
  </select>
  <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
    delete from pay
    where payid = #{payid,jdbcType=INTEGER}
  </delete>
  <insert id="insert" parameterType="com.entity.Pay" >
    insert into pay (payid, paymoney, paytime, 
      mbid, paytype)
    values (#{payid,jdbcType=INTEGER}, #{paymoney,jdbcType=DOUBLE}, #{paytime,jdbcType=VARCHAR}, 
      #{mbid,jdbcType=INTEGER}, #{paytype,jdbcType=VARCHAR})
  </insert>
  <insert id="insertSelective" parameterType="com.entity.Pay" >
    insert into pay
    <trim prefix="(" suffix=")" suffixOverrides="," >
      <if test="payid != null" >
        payid,
      </if>
      <if test="paymoney != null" >
        paymoney,
      </if>
      <if test="paytime != null" >
        paytime,
      </if>
      <if test="mbid != null" >
        mbid,
      </if>
      <if test="paytype != null" >
        paytype,
      </if>
    </trim>
    <trim prefix="values (" suffix=")" suffixOverrides="," >
      <if test="payid != null" >
        #{payid,jdbcType=INTEGER},
      </if>
      <if test="paymoney != null" >
        #{paymoney,jdbcType=DOUBLE},
      </if>
      <if test="paytime != null" >
        #{paytime,jdbcType=VARCHAR},
      </if>
      <if test="mbid != null" >
        #{mbid,jdbcType=INTEGER},
后面还有 42 行代码，购买后查看完整代码

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