目前有兩個類：機構、職員

package com.common.vo;

public class Org{

    public  long id;
    public String name;
    public String desc; 

}

package com.common.vo;

public class Employee{

    public  long id;
    public String name;
    public String age; 
    public long orgId;
    public Org org;

}

dao類：

package com.common.dao;
import com.common.vo.*;

import java.util.List;

@Mapper

public interface commonDao{

    /**查詢所有職員及其上司*/
    @Results({
    　　@Result(property="orgId",cloumn="ORGID")
    　　@Result(property="org",cloumn="{orgid=id}",one=@one(com.common.dao.commonDao.queryOrgById))
　　　})
    @Select(
 
"<script>select id ,name,org ,orgId from T_EMPLOYEE</script>")
    List <Employee> queryAllEmployee();

    @Select("<script>select id ,name,desc from T_ORG where id=#{id}</script>")
    Org queryOrgById(long id);

}

注意：關聯查詢方法queryOrgById中使用了orgId屬性，則@results中必須有@Result(property="orgId",cloumn="ORGID")，否則查詢的Employee中orgId為0