Hibernate多表聯合查詢，下面是一個多表頒查詢的方法示例：

 多表查詢

publicList<AccountNewVO> getProvinceAccountNewVOAlarmList(AccountVO account,intpageNo, int pageSize){
 
       StringBuffer sb = newStringBuffer();
       List params = newArrayList();
       sb.append(" selectd.event_add ,( case  u.cert_type when 1then '身份證' when 2 then'軍官證' when 3 then'護照' end)cert_type ,u.age  ,b.name ,d.event_owner,");
       sb.append(" d.event_code,to_char(d.event_time,'yyyy-mm-ddHH24:mi:ss'),d.event_contactor,d.fund_identify ,d.fund_identify_code ");
       sb.append(",l.type_code,l.notified,l.id   ");
       sb.append(" fromt_exception_detail d ,t_user u,t_branch b,t_exception_log l ");
       sb.append(" whered.event_usercode = u.user_code ");
       sb.append(" andu.province_code = b.code ");
       sb.append(" andd.exception_log_id = l.id ");
       sb.append(" andb.id = ? ");
       sb.append("    and (l.type_code = ? ");
       sb.append("    or l.type_code = ?) ");
       params.add(account.getProvince().getId());
       params.add(CommExceptionType.MINOR);
       params.add(CommExceptionType.DIFFERENT_PROVINCE_REG);
 
       sb.append("  order by l.notified ,l.type_code ");
       List list = null;
       try{
            list = hibernateDao.queryBySqlWithPage(sb.toString(),pageNo, pageSize,params.toArray());       
       }catch(Exceptione){
           e.printStackTrace();
       }
       List<AccountNewVO> accounts = newArrayList<AccountNewVO>();
       for(Iterator it = list.iterator(); it.hasNext();) {
           Object[] objs = (Object[]) it.next();
           AccountNewVO actnVO = newAccountNewVO();    
//         System.out.println("date:"+objs[6]);
//         System.out.println(objs[10].toString());
      
           ////////////////////////////////////////
           actnVO.setEventAdd(objs[0].toString());
           actnVO.setCertType(objs[1].toString());
           actnVO.setAge(objs[2].toString());
           actnVO.setName(objs[3].toString());
           actnVO.setEventOwner(objs[4].toString());
           actnVO.setEventCode(objs[5].toString());
           try {
              actnVO.setEventTime(DateUtils.parseDate(objs[6].toString(),"yyyy-MM-ddHH:mm:ss"));
           } catch(ParseException e) {
              System.err.println("日期型別轉換失敗");
              e.printStackTrace();
           }         
           actnVO.setEventContactor(objs[7].toString());
           actnVO.setFundIdentify(objs[8].toString());         
           actnVO.setFundIdentifyCode(objs[9].toString());
           //根據不同預警型別為status賦值
      
           if(CommExceptionType.MINOR.equals(objs[10].toString())){
              actnVO.setStatus(CommExceptionType.STR_MINOR);
           }
           if(CommExceptionType.DIFFERENT_PROVINCE_REG.equals(objs[10].toString())){
               actnVO.setStatus(CommExceptionType.STR_DIFFERENT_PROVINCE_REG);              
           }
           if(CommExceptionType.FREQUENTWIN.equals(objs[10].toString())){
              actnVO.setStatus(CommExceptionType.STR_FREQUENTWIN);
           }  
           actnVO.setNotified(objs[11].toString());
           actnVO.setLogId(objs[12].toString());
   
          
           accounts.add(actnVO);
       }
       //返回vo列表
       returnaccounts;
    }
 

//不用分頁的查詢

/**
     * 測試用的返回給PDF子系統執行狀態報表的資料
     * @return
     */
    public List<SubsysStatusVO> getSubsysDataForPDF(){
         StringBuffer sb = newStringBuffer();
         List params = newArrayList();
         sb.append(" select pb.name pname,b.name subname ,t.name warntype, l.yyyymmddwarntime,");
         sb.append(" (case l.notified when 1 then '已處理' when 0 then '未處理' end ) stauts,");
         sb.append("  l.proc_decr note ");
         sb.append(" from t_exception_log l, t_branch b, t_branch pb, t_exception_typet ");
         sb.append(" where b.id = l.branch_id and l.type_code = t.code and b.parent_id= pb.id ");
         sb.append(" and l.type_code in (?, ?) ");
         sb.append(" order by l.yyyymmdd desc,pname,subname,warntype ");
         params.add(5010);
          params.add(5012);
         List list = newArrayList();
         List<SubsysStatusVO> volist = new ArrayList<SubsysStatusVO>();
          try{          
             list = hibernateDao.queryBySqlWithParams(sb.toString(),params.toArray());              
         }catch(Exception e){e.printStackTrace();}
          try{
             for(Iterator it = list.iterator();it.hasNext();){
                Object [] objs =  (Object[])it.next();
                SubsysStatusVO vo = newSubsysStatusVO();
                vo.setProvinceName(objs[0].toString());
                vo.setSubsysName(objs[1].toString());
                vo.setWarnTypeName(objs[2].toString());
                vo.setWarnTime(objs[3].toString());
                String stauts = null== objs[4] ? "" : objs[4].toString();
                vo.setWarnStatus(stauts);
                String note = null== objs[5] ? "" : objs[5].toString();
                vo.setBakInfo(note);
                
                volist.add(vo);
             }
         }catch(Exception e){e.printStackTrace();}        
          return volist;
    }