答复: DAO的一个讨论问题

Action<-Service<-Dao<-DB
贴段代码，可能就比较清楚了
service Interface:
public interface SpaScoreDAOService {
public  List getSpaScoreSupInfo(String supItems);
....
}


DAO:(IBatis)
public class SpaScoreDAO extends SqlMapClientDaoSupport {
public List getSpaScoreSupInfo(String supItems) {
return this.getSqlMapClientTemplate().queryForList("getSpaScoreSupInfo",supItems);
}


Service implement:
public class SpaScoreDAOImp implements SpaScoreDAOService {
SpaScoreDAO spaScoreDAO;
public List getSpaScoreSupInfo(String supItems) {
...业务逻辑
             return spaScoreDAO.getSpaScoreSupInfo(supItems);
}
public SpaScoreDAO getSpaScoreDAO() {
return spaScoreDAO;
}

public void setSpaScoreDAO(SpaScoreDAO paScoreDAO){
this.spaScoreDAO = spaScoreDAO;
}


Action:
public class SpaScoreAction extends Action{

private SpaScoreDAOService spaScoreDAOService;
public ActionForward execute(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response) {
//调用业务逻辑
List supitemList = spaScoreDAOService.getSpaScoreSupInf(supItems);
......

}

public SpaScoreDAOService getSpaScoreDAOService() {
return spaScoreDAOService;
}

public void setSpaScoreDAOService(SpaScoreDAOService spaScoreDAOService) {
      this.spaScoreDAOService = spaScoreDAOService;
}