|
|
|
|
|
<?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.forum.dao.TagDao">
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<select id="getTag" resultType="Tag">
|
|
|
|
|
|
select id,name from tag where id = #{id}
|
|
|
|
|
|
</select>
|
|
|
|
|
|
|
|
|
|
|
|
<insert id="saveTag" parameterType="Tag">
|
|
|
|
|
|
insert into tag values (#{id},#{name});
|
|
|
|
|
|
</insert>
|
|
|
|
|
|
|
|
|
|
|
|
<!--两个id可能会相冲，取别名即可-->
|
|
|
|
|
|
<resultMap id="tags" type="Tag">
|
|
|
|
|
|
<id property="id" column="tid"/>
|
|
|
|
|
|
<result property="name" column="name"/>
|
|
|
|
|
|
<collection property="forums" ofType="Forum">
|
|
|
|
|
|
<id property="id" column="bid"/>
|
|
|
|
|
|
<result property="title" column="title"/>
|
|
|
|
|
|
</collection>
|
|
|
|
|
|
</resultMap>
|
|
|
|
|
|
|
|
|
|
|
|
<select id="getAllTag" resultType="com.forum.entity.Tag">
|
|
|
|
|
|
select * from tag
|
|
|
|
|
|
</select>
|
|
|
|
|
|
|
|
|
|
|
|
<select id="getForumTag" resultMap="tags">
|
|
|
|
|
|
select t.id tid, t.name, b.id bid, b.title
|
|
|
|
|
|
from tag t, forum b, forum_tags bt
|
|
|
|
|
|
where t.id = bt.tag_id and b.id = bt.forum_id
|
|
|
|
|
|
</select>
|
|
|
|
|
|
|
|
|
|
|
|
<select id="getTagByName" resultType="Tag">
|
|
|
|
|
|
select * from tag where name = #{name}
|
|
|
|
|
|
</select>
|
|
|
|
|
|
<select id="getTagById" resultType="Tag">
|
|
|
|
|
|
select * from tag where id = #{id}
|
|
|
|
|
|
</select>
|
|
|
|
|
|
<select id="countTag" resultType="java.lang.Integer">
|
|
|
|
|
|
select count(*) from tag
|
|
|
|
|
|
</select>
|
|
|
|
|
|
|
|
|
|
|
|
<delete id="deleteTag">
|
|
|
|
|
|
delete from tag where id = #{id}
|
|
|
|
|
|
</delete>
|
|
|
|
|
|
|
|
|
|
|
|
<update id="updateTag" parameterType="Tag">
|
|
|
|
|
|
update tag set name = #{name} where id = #{id};
|
|
|
|
|
|
</update>
|
|
|
|
|
|
|
|
|
|
|
|
</mapper>
|
