解决org.apache.ibatis.binding.BindingException: Type interface xxx is not known to the MapperRegistry

JavaKuzz

于 2017-10-12 12:09:40 发布

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分类专栏： JavaEE 文章标签： mybatis mapper 映射文件

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本文介绍了在使用MyBatis时遇到的BindingException错误：Type interface com.kk.mapper.EmployeeMapper is not known to the MapperRegistry. 该问题源于mapper映射文件的namespace与接口类名不一致。文章强调了保持两者一致的重要性。

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Exception in thread “main” org.apache.ibatis.binding.BindingException: Type interface com.kk.mapper.EmployeeMapper is not known to the MapperRegistry.
at org.apache.ibatis.binding.MapperRegistry.getMapper(MapperRegistry.java:47)
at org.apache.ibatis.session.Configuration.getMapper(Configuration.java:717)
atorg.apache.ibatis.session.defaults.DefaultSqlSession.getMapper(DefaultSqlSession.java:292)
at com.kk.test.DynamicSqlTest.main(DynamicSqlTest.java:20)

出现这个错误的原因是mapper映射文件的namespace和接口类名不一致！所以注意namespace和接口名要一致！