mybatis not known to the MapperRegistry
时间: 2024-04-25 11:24:42 浏览: 17
回答: 报错 "Type interface com.dao.handle.oaMapper is not known to the MapperRegistry." 表明在使用反射获取接口类的方式时,没有找到正确的mapper文件。可能是因为mapper文件的namespace中缺少了一些信息导致的。解决方案是检查mybatis-config.xml文件中的<mappers>配置,确保namespace中包含正确的mapper文件路径信息。 例如,可以将<mappers>配置改为 <package name="mappers.UserMapper"/> 表示需要扫描的mapper文件的包路径。这样就能正确地找到对应的mapper文件,解决该问题。
相关问题
is not known to the MapperRegistry.
This error message usually occurs in frameworks that use object-relational mapping (ORM) libraries such as Hibernate or MyBatis. It means that the ORM library cannot find the mapping configuration for the entity object, which is required to map the properties of the object to database columns.
To solve this error, you can check the following:
1. Make sure that the entity class is correctly annotated with the ORM annotations, such as @Entity, @Table, @Column, etc.
2. Ensure that the mapping configuration file (such as hibernate.cfg.xml or mybatis-config.xml) is correctly configured to include the entity object.
3. Check if the mapping file is in the correct location and properly named.
4. Verify that the database connection properties are correctly set in the configuration file.
5. Check if the database schema is correctly configured and the tables corresponding to the entity objects exist in the database.
By resolving any of the above issues, you should be able to fix the error and successfully map the entity object to the database table.
Type interface UserMapper is not known to the MapperRegistry
这个错误通常是因为 MyBatis 没有找到对应的 Mapper 接口或者没有在 MyBatis 的配置文件中正确配置。可以检查以下几个方面:
1. 确认 Mapper 接口的包路径和文件名是否正确,以及是否在 MyBatis 的配置文件中正确配置了 Mapper 接口的路径。
2. 确认 Mapper 接口上的注解或者 XML 文件中的 namespace 是否正确。
3. 确认 MyBatis 的配置文件中是否正确配置了 Mapper 接口的扫描路径。
如果以上都没有问题,可以尝试重新编译项目或者重启应用程序。
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