mybatis的select查询之like
mysql数据库中
第一种:
<select id="selectUser" resultType="com.User">
SELECT * from userinfos where username like "%"#{username}"%"
</select>
第二种:
<select id="selectUser" resultType="com.User">
SELECT * from userinfos where username like CONCAT("%",#{username},"%")
</select>
第三种:
<select id="selectUser" resultType="com.User">
<bind name="username" value="'%' + keyword + '%'" />
SELECT *
FROM userinfos
WHERE role_name LIKE #{username}
</select>

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