There is no getter for property named ‘xxxxx’ in ‘class com.xxx.xx.xx.xxxx‘”,

原文链接：https://www.longkui.site/program/java/getter/5082/

0.背景
SpringMVC架构，使用mybatis执行insert语句，然后开始报错：

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.reflection.ReflectionException: There is no getter for property named ‘xxxxx’ in ‘class com.xxx.xxx.api.xxxx’”,

mapper层的写法：

void insertStudent(Student student);
xml层的写法：

insert into stu(id,name) values (#{id},#{name}) 然后就开始报上面的错误了。

1.问题原因及解法方法
实体类缺失getter/setter 方法。解决办法，加入getter/setter方法
实体类名与数据库类名不符。这个一般遇不到，而且可以不一定要对应。
实体类名与 xml 中的 property 名不符， xml 中 column 名与 property 名不符。解决办法：这个如果你要做一一对应的话就写成一样的，要不然自己写参数对应也行。
编写 sql 语句不要多空格少逗号之类的，不要写错少些字母。解法办法：请仔细检查sql语句。
最后，就是我实际遇到的，mapper层和xml层写错了。

上面的mapper层代码应该改成下面这样：

void insertStudent(@Param(“student”) Student student);
xml层应该改成下面这样：

insert into stu(id,name) values (#{student.id},#{student.name}) PS: 不要过度依赖代码生成器，有的代码自己写两遍才知道问题所在。

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