love-nav/src/main/resources/mybatis/CommentDao.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.lovenav.dao.CommentDao">
  <resultMap id="BaseResultMap" type="com.lovenav.entity.Comment">
    <id column="id" jdbcType="INTEGER" property="id" />
    <result column="url_id" jdbcType="INTEGER" property="urlId" />
    <result column="user_id" jdbcType="INTEGER" property="userId" />
    <result column="content" jdbcType="VARCHAR" property="content" />
    <result column="root_comment_id" jdbcType="INTEGER" property="rootCommentId" />
    <result column="like_count" jdbcType="BIGINT" property="likeCount" />
    <result column="comment_time" jdbcType="TIMESTAMP" property="commentTime" />
    <result column="comment_status" jdbcType="TINYINT" property="commentStatus" />
    <result column="update_time" jdbcType="TIMESTAMP" property="updateTime" />
    <result column="rating" jdbcType="INTEGER" property="rating" />
  </resultMap>



  <sql id="Base_Column_List">
    id, url_id, user_id, content, root_comment_id, like_count, comment_time, comment_status, 
    update_time, rating
  </sql>
  <select id="selectByPrimaryKey" parameterType="java.lang.Integer" resultMap="BaseResultMap">
    select 
    <include refid="Base_Column_List" />
    from ln_comment
    where id = #{id,jdbcType=INTEGER}
  </select>
  <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">
    delete from ln_comment
    where id = #{id,jdbcType=INTEGER}
  </delete>
  <insert id="insert" keyColumn="id" keyProperty="id" parameterType="com.lovenav.entity.Comment" useGeneratedKeys="true">
    insert into ln_comment (url_id, user_id, content, 
      root_comment_id, like_count, comment_time, 
      comment_status, update_time, rating
      )
    values (#{urlId,jdbcType=INTEGER}, #{userId,jdbcType=INTEGER}, #{content,jdbcType=VARCHAR},
      #{rootCommentId,jdbcType=INTEGER}, #{likeCount,jdbcType=BIGINT}, #{commentTime,jdbcType=TIMESTAMP}, 
      #{commentStatus,jdbcType=TINYINT}, #{updateTime,jdbcType=TIMESTAMP}, #{rating,jdbcType=INTEGER}
      )
  </insert>
  <insert id="insertSelective" keyColumn="id" keyProperty="id" parameterType="com.lovenav.entity.Comment" useGeneratedKeys="true">
    insert into ln_comment
    <trim prefix="(" suffix=")" suffixOverrides=",">
      <if test="urlId != null">
        url_id,
      </if>
      <if test="userId != null">
        user_id,
      </if>
      <if test="content != null">
        content,
      </if>
      <if test="rootCommentId != null">
        root_comment_id,
      </if>
      <if test="likeCount != null">
        like_count,
      </if>
      <if test="commentTime != null">
        comment_time,
      </if>
      <if test="commentStatus != null">
        comment_status,
      </if>
      <if test="updateTime != null">
        update_time,
      </if>
      <if test="rating != null">
        rating,
      </if>
    </trim>
    <trim prefix="values (" suffix=")" suffixOverrides=",">
      <if test="urlId != null">
        #{urlId,jdbcType=INTEGER},
      </if>
      <if test="userId != null">
        #{userId,jdbcType=INTEGER},
      </if>
      <if test="content != null">
        #{content,jdbcType=VARCHAR},
      </if>
      <if test="rootCommentId != null">
        #{rootCommentId,jdbcType=INTEGER},
      </if>
      <if test="likeCount != null">
        #{likeCount,jdbcType=BIGINT},
      </if>
      <if test="commentTime != null">
        #{commentTime,jdbcType=TIMESTAMP},
      </if>
      <if test="commentStatus != null">
        #{commentStatus,jdbcType=TINYINT},
      </if>
      <if test="updateTime != null">
        #{updateTime,jdbcType=TIMESTAMP},
      </if>
      <if test="rating != null">
        #{rating,jdbcType=INTEGER},
      </if>
    </trim>
  </insert>
  <update id="updateByPrimaryKeySelective" parameterType="com.lovenav.entity.Comment">
    update ln_comment
    <set>
      <if test="urlId != null">
        url_id = #{urlId,jdbcType=INTEGER},
      </if>
      <if test="userId != null">
        user_id = #{userId,jdbcType=INTEGER},
      </if>
      <if test="content != null">
        content = #{content,jdbcType=VARCHAR},
      </if>
      <if test="rootCommentId != null">
        root_comment_id = #{rootCommentId,jdbcType=INTEGER},
      </if>
      <if test="likeCount != null">
        like_count = #{likeCount,jdbcType=BIGINT},
      </if>
      <if test="commentTime != null">
        comment_time = #{commentTime,jdbcType=TIMESTAMP},
      </if>
      <if test="commentStatus != null">
        comment_status = #{commentStatus,jdbcType=TINYINT},
      </if>
      <if test="updateTime != null">
        update_time = #{updateTime,jdbcType=TIMESTAMP},
      </if>
      <if test="rating != null">
        rating = #{rating,jdbcType=INTEGER},
      </if>
    </set>
    where id = #{id,jdbcType=INTEGER}
  </update>
  <update id="updateByPrimaryKey" parameterType="com.lovenav.entity.Comment">
    update ln_comment
    set url_id = #{urlId,jdbcType=INTEGER},
      user_id = #{userId,jdbcType=INTEGER},
      content = #{content,jdbcType=VARCHAR},
      root_comment_id = #{rootCommentId,jdbcType=INTEGER},
      like_count = #{likeCount,jdbcType=BIGINT},
      comment_time = #{commentTime,jdbcType=TIMESTAMP},
      comment_status = #{commentStatus,jdbcType=TINYINT},
      update_time = #{updateTime,jdbcType=TIMESTAMP},
      rating = #{rating,jdbcType=INTEGER}
    where id = #{id,jdbcType=INTEGER}
  </update>


  <select id="selectAllComment" parameterType="java.lang.Integer" resultMap="BaseResultMap">
    select
      *
    from ln_comment
    where root_comment_id = 0 and comment_status = 0
  </select>

  <select id="selectByAllReply" parameterType="java.lang.Integer" resultMap="BaseResultMap">
    select
      *
    from ln_comment
    where root_comment_id = #{rootCommentId,jdbcType=INTEGER} and comment_status = 0
  </select>





  <select id="queryFirstCommentList" parameterType="java.lang.Integer" resultMap="com.lovenav.dao.mybaits.Map">
    SELECT * FROM ln_comment o LEFT JOIN ln_user u
             ON o.user_id=u.id
    WHERE o.url_id = #{urlId,jdbcType=INTEGER} AND o.root_comment_id = 0
  </select>


  <select id="querySecondCommentList" parameterType="java.lang.Integer" resultMap="com.lovenav.dao.mybaits.Map">
    SELECT * FROM ln_comment o LEFT JOIN ln_user u
            ON o.user_id=u.id
    WHERE o.url_id = #{urlId,jdbcType=INTEGER} AND o.root_comment_id != 0
  </select>




</mapper>