mybatis框架关系映射注解

1.

one注解：用于一对一关系映射

Select("select*fromstudent")

Results({

Result(id=true,property="id",column="id"),

Result(property="name",column="name"),

Result(property="age",column="age"),

Result(property="address",column="address_id",one=

One(select="cn.mappers.AddressMapper.getAddress"))

})

publicListStudentgetAllStudents();

2.

many注解：用于一对多关系映射

Select("select*fromt_classwhereid=#{id}")

Results({

Result(id=true,column="id",property="id"),

Result(column="class_name",property="className"),

Result(property="students",column="id",many=

Many(select="cn.mappers.StudentMapper.getStudentsByClassId"))

})

publicClassgetClass(intid);

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