建立实体类和数据库映射（注解）

 1.建立实体类和数据库映射 		@Select("select * from user")     @Results(id = "resultMap",value = {             @Result(id = true,property = "userId",column ="id"),             @Result(property = "userName",column ="username"),             @Result(property = "userSex",column ="sex"),             @Result(property = "userAddress",column ="address"),     })     List<User> findAll();      2.其他mapper对其进行引用 		@Select("select * from user where id=#{id}")     @ResultMap(value={"resultMap"})     User getUserById(Integer id);

文章来源: https://blog.csdn.net/qq1424035130/article/details/91446286