There is no READABLE property named 'day' in class 'java.lang.String'；You have an error in your SQL

<typeAlias alias="roombook" type="roombook.dao.model.RoombookModel" />

<resultMap class="roombook" id="get-all-roombooks">

<result property="roombookId" column="rid" />

<result property="bookUserName" column="cname" />

<result property="roomId" column="roomid" />

<result property="roomName" column="roomname" />

<result property="day" column="day" />

<result property="bookTimeStart" column="starttime" />

<result property="bookTimeEnd" column="endtime" />

</resultMap>

<select id="getAllReserve" resultMap="get-all-roombooks"

parameterClass="String">

SELECT S3.rid,S3.roomid,S1.roomname,S2.detial as starttime,S4.detial

as endtime,S3.day,S3.cname FROM yy.mroom S1,yy.time S2,yy.reserve

S3,yy.time S4

<dynamic prepend="WHERE">

S1.roomid=S3.roomid and S2.tid=S3.starttimeId and S4.tid=S3.endtimeId

<isNotEmpty property="day" prepend="AND">

S3.day=#day#

</isNotEmpty>

</dynamic>

</select>

原来是这个样子的，报错，修改成

<isNotEmpty property="value" prepend="AND">

S3.day=#value#

</isNotEmpty>

因为如果是int,String,etc类型的话.参数值应该就value作为参数传递进去。

参考了文章:/article/3903436.html

顺便提下，我使用的数据库是mysql。修改后，报其他的错误：

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server versio

终于找到错误的根本原因了，因为S1.roomid=S3.roomid and S2.tid=S3.starttimeId and S4.tid=S3.endtimeId并不是动态SQL语句，所以不应该包到dynamic里面去，写成下面的就可以了：

<select id="getAllReserve" resultMap="get-all-roombooks" parameterClass="roombook">

SELECT S3.rid,S3.roomid,S1.roomname,S2.detial as starttime,S4.detial as endtime,S3.bookday,S3.cname FROM yy.mroom S1, yy.time S2, yy.reserve S3, yy.time S4

where S1.roomid=S3.roomid and S2.tid=S3.starttimeId and S4.tid=S3.endtimeId

<isNotEmpty property="bookday" prepend="AND">

S3.bookday=#bookday#

</isNotEmpty>

</select>

day的名称换成了bookday，因为day这个名字比较敏感，还是换了的好。