Mybatis manual
bind 将导致where的判断错误
<!--
if so, it will make the where judge is not correct
<bind name="userName" value="'%'+_parameter.userName+'%'"/>
<bind name="userFullName" value="'%'+_parameter.userFullName+'%'"/>
<bind name="userTelephone" value="'%'+_parameter.userTelephone+'%'"/>
<bind name="userEmail" value="'%'+_parameter.userEmail+'%'"/>
-->
select <include refid="Column_short" /> from user
<where>
<if test="userName!=null and userName.trim()!=''">
And user_name like '%#{
userName}%'
</if>
<if test="userFullName!=null and userFullName.trim()!=''">
AND user_full_name like '%#{
userFullName}%'
</if>
<if test='userTelephone!=null and userTelephone.trim()!=""'>
AND user_telephone like '%#{
userTelephone}%'
</if>
<if test="userEmail!=null and userEmail.trim()!=''">
AND user_email like '%#{
userEmail}%'
</if>
</where>
导致的结果,会少查询一条数据
select * from mybook.user where id not in (
SELECT id FROM mybook.user where user_name like '%test%' AND user_full_name like '%%' AND user_telephone like '%%' AND user_email like '%%'
) and id in (
SELECT id FROM mybook.user where user_name like '%test%'
)
No setter found for the keyProperty ‘menu_id’
<insert id="insertMenu"
useGeneratedKeys="true"
keyProperty="menu_id"
parameterType="com.book.erp.entity.menu.Menu">
数据库定义了自动增长的ID
<insert id="insertMenu"
useGeneratedKeys="true"
parameterType="com.book.erp.entity.menu.Menu">
数据库没有定义自动增长的ID
<insert id="registerReader"
parameterType="com.book.erp.entity.menu.Menu"
useGeneratedKeys=true
keyProperty="menuId"
keyColumn="menu_id">