发现fetchlinks其实是有语句输出的，初步判断是一对一的关系没有正确识别所以没有执行的原因。

public class JoinInVO
{
   @Id
   private int id;
   /**关联的供应商id和经销商id*/

   @Column
   protected String supplyerId;
   @Column
   private String salesId;
   @Column
   private String userLevelId;

   @One(target = JoinInLevelVO.class, field = "userLevelId", key = "levelId")
   protected JoinInLevelVO joinInLevelVO;
}
``````
public class JoinInLevelVO
{
   //通用字段
   @Name
   @Column
   private String levelId;
   @Column
   private String levelName;
   @Column
   private String companyId;
}

这个关联的写法应该是没有问题的

JoinInVO joininVO = JoinInBO.fetchJoinIn(dao, userVO.getUserId(), orderVO.getSalesId());//查找加盟的记录
dao.fetchLinks(joininVO, "levelVO");

额问题已解决，谢谢wendal兽总