ClassesMapper.xml:

<resultMap type="Classes" id="classesMap"> <id property="id" column="c_id" javaType="int"/> <result property="name" column="c_name" javaType="String"/><!-- <association property="teacher" javaType="Teacher" > <id property="id" column="t_id" javaType="int"/> <result property="name" column="t_name" javaType="String"/> <result property="age" column="t_age" javaType="int"/> </association> --> <association property="teacher" javaType="Teacher" resultMap="com.lsj.test.mybatis.mapper.TeacherMapper.teacherMap" ></association> <collection property="studentList" ofType="Student" resultMap="com.lsj.test.mybatis.mapper.StudentMapper.studentMap" ></collection> </resultMap> <sql id="selectAllClassesSql"> SELECT c.id as c_id,c.name as c_name,teacher_id, t.id as t_id,t.name as t_name,t.age as t_age, s.id as stu_id,s.name as stu_name,s.classes_id from classes c,teacher t,student s </sql>

TeacherMapper.xml的resultMap:

<resultMap type="Teacher" id="teacherMap"> <id property="id" column="t_id" javaType="int"/> <result property="name" column="t_name" javaType="String"/> <result property="age" column="t_age" javaType="int"/> </resultMap>

利用命名空间+resultMapID就可以直接引用其他Mapper文件的resultMap，其中resultMap的column在本文件中也有用，也可以对应sql语句中的column别名。

总结

以上所述是小编给大家介绍的mybatis 不同Mapper文件引用resultMap，希望对大家有所帮助，如果大家有任何疑问请给我留

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