mybatis 使用（7）基于注解的一对一映射

package com.mybatis.mapper;

import org.apache.ibatis.annotations.One;
import org.apache.ibatis.annotations.Result;
import org.apache.ibatis.annotations.Results;
import org.apache.ibatis.annotations.Select;

import com.mybatis.pojo.Person;

public interface PersonMapper {
	@Select("select * from person where id = #{id} ")
	@Results({
			@Result(column = "cid", property = "idcard", one = @One(select = "com.mybatis.mapper.IdcardMapper.findIdcardById")) })
	// 根据id查询个人信息
	public Person findPersonById(int id);
}package com.mybatis.mapper;

import or