@MapperScan 注解和 mybatis.mapper-locations 配置两者缺一不可

@MapperScan 注解和 mybatis.mapper-locations 配置两者缺一不可

@MapperScan(basePackages="xxx.xxx.xxx") 这个注解是用户扫描 mapper 接口的，也就是dao类；
mybatis.mapper-locations 配置是用于扫描 mapper.xml 的；
两者用途不同，故缺一不可。

如下，

mybatis:
mapper-locations: classpath:mapping/*Mapping.xml

@MapperScan("com.example.demo.mapper")

如果遇到类似下面的错误，通常就是 mapper.xml 文件找不到，请先检查以上两个配置是否正常。

例1:

Caused by: org.apache.ibatis.builder.IncompleteElementException: Could not find result map xxx.xxx.xxx.BaseResultMap

例2:

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dynamicSecurityMetadataSource': Invocation of init method failed; nested exception is org.apache.ibatis.builder.IncompleteElementException: Could not find result map xxx.xxx.xxx.BaseResultMap

例3:

Caused by: java.lang.IllegalArgumentException: Result Maps collection does not contain value for xxx.xxx.xxx.BaseResultMap

例4:

Could not find result map xxx.xxx.xxx.BaseResultMap

例5：

org.apache.ibatis.binding.BindingException: Invalid bound statement (not fou

原文链接和参考资料：

解决org.apache.ibatis.binding.BindingException: Invalid bound statement (not found)问题_写代码的蜗牛-CSDN博客  https://blog.csdn.net/sundacheng1989/article/details/81630370

@MapperScan 注解和 mybatis.mapper-locations 配置两者缺一不可 – CroWall  https://crowall.com/archives/mybatis-mapper-scan-and-locations.html