## 修改 将数据库中主键为id的user表对应的实体类属性改为userId. ## 配置 ~~~ @Select("select * from user") @Results(id = "userMap", value = { //将以下配置配置个id名称 @Result(id = true, property = "userId", column = "id"), //如何是id就加上id = true,如果是其他属性就可以不写 @Result(property = "userName", column = "username") }) List<User> findAll(); @Select("select * from user where id = #{id}") @ResultMap("userMap") //对上面的配置进行引用 User findById(Integer id); ~~~