cot/WebRoot/WEB-INF/classes/com/fhy/mapper/CommMapper.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" >
<mapper namespace="com.fhy.mapper.CommMapper" >
  <resultMap id="BaseResultMap" type="com.fhy.pojo.Comm" >
    <id column="id" property="id" jdbcType="INTEGER" />
    <result column="user_id" property="userId" jdbcType="INTEGER" />
    <result column="type_id" property="typeId" jdbcType="INTEGER" />
    <result column="ztype_id" property="ztypeId" jdbcType="INTEGER" />
    <result column="comm_name" property="commName" jdbcType="VARCHAR" />
    <result column="comm_price" property="commPrice" jdbcType="VARCHAR" />
    <result column="comm_img" property="commImg" jdbcType="VARCHAR" />
    <result column="comm_status" property="commStatus" jdbcType="INTEGER" />
    <result column="comm_remark" property="commRemark" jdbcType="VARCHAR"/>
  </resultMap>
  <sql id="Base_Column_List">
    id, user_id, type_id,ztype_id,comm_name, comm_price, comm_img, comm_status,comm_remark
  </sql>
  
  <!-- 根据ID查询 -->
  <select id="selectbyid" resultMap="BaseResultMap" parameterType="java.lang.Integer">
  	select * from comm where id= #{id}
  </select>
  
  <!-- 查询所有商品 -->
  <select id="selectcommall" resultMap="BaseResultMap" parameterType="com.fhy.pojo.Comm">
  	select * from comm
  </select>
  
  <!-- 通过一级类别查询商品 -->
  <select id="selectbytype" resultMap="BaseResultMap" parameterType="java.lang.Integer">
  	select * from comm where type_id = #{type_id} and comm_status = 1
  </select>
  
  <!-- 通过二级类别查询商品 -->
  <select id="selectbyztype" resultMap="BaseResultMap" parameterType="java.lang.Integer">
  	select * from comm where ztype_id = #{ztype_id} and comm_status = 1
  </select>
  
  <!-- 按条件查询商品 -->
  <select id="selectKeyWord" resultMap="BaseResultMap" parameterType="java.lang.String">
  	SELECT * FROM comm WHERE comm_name like CONCAT('%',#{keyword},'%') and comm_status = 1
  </select>
  
  <!-- 商品的详细信息 -->
  <select id="comminfo" resultMap="BaseResultMap" parameterType="com.fhy.pojo.Comm">
  	select comm.comm_name,comm.comm_price,comm.comm_img,comm.comm_remark,my_user.name,my_user.phone,my_user.weixin,type.comm_type,ztype.ztype_name 
  	from comm,my_user,type,ztype 
  	where comm.id = #{id} and my_user.user_id = comm.user_id and type.id = comm.type_id and ztype.id = comm.ztype_id
  </select>
  
  <!-- 查询自己出售的商品 -->
  <select id="my_comm" resultMap="BaseResultMap" parameterType="com.fhy.pojo.Comm">
  	select * from comm where user_id = #{user_id}
  </select>
  
  <!-- 录入商品信息 -->
  <insert id="insertSelective" parameterType="com.fhy.pojo.Comm" >
    insert into comm
    <trim prefix="(" suffix=")" suffixOverrides="," >
      <if test="id != null" >
        id,
      </if>
      <if test="userId != null" >
        user_id,
      </if>
      <if test="typeId != null" >
        type_id,
      </if>
      <if test="ztypeId != null" >
        ztype_id,
      </if>
      <if test="commName != null" >
        comm_name,
      </if>
      <if test="commPrice != null" >
        comm_price,
      </if>
      <if test="commImg != null" >
        comm_img,
      </if>
      <if test="commStatus != null" >
        comm_status,
      </if>
      <if test="commRemark != null" >
        comm_remark,
      </if>
    </trim>
    <trim prefix="values (" suffix=")" suffixOverrides="," >
      <if test="id != null" >
        #{id,jdbcType=INTEGER},
      </if>
      <if test="userId != null" >
        #{userId,jdbcType=INTEGER},
      </if>
      <if test="typeId != null" >
        #{typeId,jdbcType=INTEGER},
      </if>
      <if test="ztypeId != null" >
        #{ztypeId,jdbcType=INTEGER},
      </if>
      <if test="commName != null" >
        #{commName,jdbcType=VARCHAR},
      </if>
      <if test="commPrice != null" >
        #{commPrice,jdbcType=VARCHAR},
      </if>
      <if test="commImg != null" >
        #{commImg,jdbcType=VARCHAR},
      </if>
      <if test="commStatus != null" >
        #{commStatus,jdbcType=INTEGER},
      </if>
      <if test="commRemark != null" >
        #{commRemark,jdbcType=VARCHAR},
      </if>
    </trim>
  </insert>
  
  <!-- 修改商品信息 -->
  <update id="updateByPrimaryKeySelective" parameterType="com.fhy.pojo.Comm" >
    update comm
    <set >
      <if test="userId != null" >
        user_id = #{userId,jdbcType=INTEGER},
      </if>
      <if test="typeId != null" >
        type_id = #{typeId,jdbcType=INTEGER},
      </if>
      <if test="ztypeId != null" >
        ztype_id = #{ztypeId,jdbcType=INTEGER},
      </if>
      <if test="commName != null" >
        comm_name = #{commName,jdbcType=VARCHAR},
      </if>
      <if test="commPrice != null" >
        comm_price = #{commPrice,jdbcType=VARCHAR},
      </if>
      <if test="commImg != null" >
        comm_img = #{commImg,jdbcType=VARCHAR},
      </if>
      <if test="commStatus != null" >
        comm_status = #{commStatus,jdbcType=INTEGER},
      </if>
      <if test="commRemark != null" >
        comm_remark = #{commRemark,jdbcType=VARCHAR},
      </if>
    </set>
    where id = #{id,jdbcType=INTEGER}
  </update>
</mapper>