利用Mybatis 的 selectKey来获得：
方法一：
<!-- 添加部门 返回部门ID -->
<insert id="addDept" parameterType="com.demo.model.Department" keyProperty="id">
<selectKey keyProperty='id' resultType='int' order='AFTER' >
select LAST_INSERT_ID();
</selectKey>
insert into department(<include refid="departmentAllField"/>)
values(#{departmentId},#{departmentName},#{departmentManagerName},#{companyId});
</insert> 方法二：
<insert id="addDept" parameterType="com.demo.model.Department" useGeneratedKeys="true" keyProperty="id">
insert into department(<include refid="departmentAllField"/>)
values(#{departmentId},#{departmentName},#{departmentManagerName},#{companyId});
</insert>
注意：insert 标签中的 keyProperty 和 selectKey标签块中的 LAET_INSERT_ID() ,另外 order属性 对于 oracl为 BEFORE; mysql为AFTER
方法三：
<insert id="insert" keyColumn="id" keyProperty="id" parameterType="com.edu.archive.business.domain.grade.pojo.model.ApplicationRecord" useGeneratedKeys="true">
insert into bj_application_record (parent_id, class_no, student_name,
kinsfolk_relation, `status`, refuse_remark,
create_time, update_time, version
)
values (#{parentId,jdbcType=INTEGER}, #{classNo,jdbcType=VARCHAR}, #{studentName,jdbcType=VARCHAR},
#{kinsfolkRelation,jdbcType=VARCHAR}, #{status,jdbcType=TINYINT}, #{refuseRemark,jdbcType=VARCHAR},
#{createTime,jdbcType=TIMESTAMP}, #{updateTime,jdbcType=TIMESTAMP}, #{version,jdbcType=INTEGER}
)
</insert>mybatis 添加一条新数据并返回此数据的ID(主键) - 蓝鲸也是鲸 - 博客园
