Mybatis中传参包There is no getter for property named 'XXX' in 'c

分享一下我老师大神的人工智能教程!零基础,通俗易懂!http://blog.csdn.net/jiangjunshow

也欢迎大家转载本篇文章。分享知识,造福人民,实现我们中华民族伟大复兴!

               

一、发现问题

<select id="queryStudentByNum" resultType="student" parameterType="string">  

select num,name,phone from student  
<where> 
<if test = " num!=null and num!='' ">
AND num = #{num}
</if>
</where>
</select> 
Mybatis查询传入一个字符串传参数,报There is no getter for property named 'num' in 'class java.lang.String'。


二、解决问题

<select id="queryStudentByNum" resultType="student" parameterType="string">  

select num,name,phone from student  
<where> 
<if test = " _parameter!=null and_parameter!='' ">
AND num = #{_parameter}
</if>
</where>
</select>
无论参数名,都要改成"_parameter"。


三、原因分析

Mybatis默认采用ONGL解析参数,所以会自动采用对象树的形式取string.num值,引起报错。也可以public List methodName(@Param(value="num") String num)的方法说明参数值


参考博客:

http://blog.sina.com.cn/s/blog_86e49b8f010191hw.html

http://txin0814.iteye.com/blog/1533645


感觉有帮助请您赏一杯茶钱,金额随意。您的鼓励是我写作的动力。

Mybatis中传参包There is no getter for property named 'XXX' in 'c

           

给我老师的人工智能教程打call!http://blog.csdn.net/jiangjunshow

Mybatis中传参包There is no getter for property named 'XXX' in 'c