1、SpringBoot逆向生成工具
注意事项:
生成的mapper.xml文件,就是实体类的每一个属性和数据库表的每一个列相对应:
VideosMapper.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.imooc.mapper.VideosMapper" >
<resultMap id="BaseResultMap" type="com.imooc.pojo.Videos" >
<!--
WARNING - @mbg.generated
-->
<id column="id" property="id" jdbcType="VARCHAR" />
<result column="user_id" property="userId" jdbcType="VARCHAR" />
<result column="audio_id" property="audioId" jdbcType="VARCHAR" />
<result column="video_desc" property="videoDesc" jdbcType="VARCHAR" />
<result column="video_path" property="videoPath" jdbcType="VARCHAR" />
<result column="video_seconds" property="videoSeconds" jdbcType="REAL" />
<result column="video_width" property="videoWidth" jdbcType="INTEGER" />
<result column="video_height" property="videoHeight" jdbcType="INTEGER" />
<result column="cover_path" property="coverPath" jdbcType="VARCHAR" />
<result column="like_counts" property="likeCounts" jdbcType="BIGINT" />
<result column="status" property="status" jdbcType="INTEGER" />
<result column="create_time" property="createTime" jdbcType="TIMESTAMP" />
</resultMap>
</mapper>
VideosMapper.java类
public interface VideosMapperCustom extends MyMapper<Videos> {
/**
* @Description: 条件查询所有视频列表
*/
public List<VideosVO> queryAllVideos(@Param("videoDesc") String videoDesc,
@Param("userId") String userId);
/**
* @Description: 查询关注的视频
*/
public List<VideosVO> queryMyFollowVideos(String userId);
/**
* @Description: 查询点赞视频
*/
public List<VideosVO> queryMyLikeVideos(@Param("userId") String userId);
/**
* @Description: 对视频喜欢的数量进行累加
*/
public void addVideoLikeCount(String videoId);
/**
* @Description: 对视频喜欢的数量进行累减
*/
public void reduceVideoLikeCount(String videoId);
}