rowset.jar的用法

给你一个例子      Context ctx = getInitialContext();
      Object ref = ctx.lookup("com/pagic/sas/BsSets");      //get Home
      bsSetsHome = (BsSetsHome) PortableRemoteObject.narrow(ref, BsSetsHome.class);
      bsSets = bsSetsHome.create();      str[0]=request.getParameter("flex_value_set_id")==null?"":request.getParameter("flex_value_set_id").trim();
      str[1]=request.getParameter("flex_value_set_name")==null?"":chartype.UnicodeToGB(request.getParameter("flex_value_set_name").trim());
      str[2]=request.getParameter("description")==null?"":chartype.UnicodeToGB(request.getParameter("description").trim());
      str[3]=request.getParameter("format_type")==null?"":request.getParameter("format_type").trim();
      str[4]=request.getParameter("Maxinum_Size")==null?"":request.getParameter("Maxinum_Size").trim();
      str[5]=request.getParameter("Maximun_Value")==null?"":request.getParameter("Maximun_Value").trim();
      str[6]=request.getParameter("Minimun_value")==null?"":request.getParameter("Minimun_value").trim();
      str[7]=request.getParameter("Default_Value")==null?"":request.getParameter("Default_Value").trim();
      str[8]=request.getParameter("Default_Meaning")==null?"":chartype.UnicodeToGB(request.getParameter("Default_Meaning").trim());
      str[9]=request.getParameter("Alphanumeric_Allowed_Flag")==null?"":request.getParameter("Alphanumeric_Allowed_Flag").trim();
      str[10]=request.getParameter("Enabled_Flag")==null?"":request.getParameter("Enabled_Flag").trim();
      str[11]=request.getParameter("Number_Precision")==null?"":request.getParameter("Number_Precision").trim();      String str_page = request.getParameter("page")==null?"1":request.getParameter("page").trim();
      String str_split_page = request.getParameter("split_page")==null?"N":request.getParameter("split_page").trim();      crs=(CachedRowSet)bsSets.findSasFlexValueSets(new java.math.BigDecimal(java.lang.Long.parseLong(str[0])));      SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd H:mm:ss");
      java.util.Date d=new java.util.Date();
      String stime=formatter.format(d);      while(crs.next()){
        crs.updateString("flex_value_set_name",str[1]);
        crs.updateString("description",str[2]);
        crs.updateString("format_type",str[3]);
        if(str[4].length()>0){
          crs.updateBigDecimal("Maxinum_Size",new java.math.BigDecimal(java.lang.Long.parseLong(str[4])));
        }
        crs.updateString("Maximun_Value",str[5]);
        crs.updateString("Minimun_value",str[6]);
        crs.updateString("Default_Value",str[7]);
        crs.updateString("Default_Meaning",str[8]);
        crs.updateString("Alphanumeric_Allowed_Flag",str[9]);
        crs.updateString("Enabled_Flag",str[10]);
        if(str[11].length()>0){
          crs.updateBigDecimal("Number_Precision",new java.math.BigDecimal(java.lang.Long.parseLong(str[11])));
        }
        crs.updateDate("last_update_date",new java.sql.Date(formatter.parse(stime.toString()).getTime()));
        crs.updateString("last_updated_by",str_username);
        crs.updateRow();
      }      int operate_symbol = (int)bsSets.updateRowSet(crs);
EJB中
 public RowSet ejbHomeGetValues(String str_sql, String TableName) throws PsSetsException {
    DataManager db = new DataManager();
    ResultSet rs = null;
    CachedRowSet crs = null;
    try{
      if(str_sql == null){
        str_sql="";
      }
      if(db.DBConnect()==super.OK){
        rs = db.DBSelect(str_sql);
        crs = new CachedRowSet();
        crs.populate(rs);
        crs.setTableName(TableName);
      }else{
        crs = null;//连接数据库失败。
      }
    }catch(Exception ex){
      //Logger.LOG(Level.SEVERE,"Entity Bean::PsSasFlexValueSets::ejbHomeGetValues()",ex);
      return null;
    }finally{
      try{
        rs.close();
        db.DBClose();
      }catch(Exception e){}
    }
    return crs;
  }  public int ejbHomeUpdateSet(RowSet rs) throws PsSetsException {
    int returnValue = super.ERROR;
    DataManager db = new DataManager();
    try{
      if(db.DBConnect()==super.OK){
        returnValue = db.UpdateRowSet(rs);
      }
    }catch(Exception ex){
      try{
        db.DBRollback();
      }catch(Exception e){}
      //Logger.LOG(Level.SEVERE,"Entity Bean::PsSasFlexValueSets::ejbHomeUpdateSet()",ex);
      return super.ERROR;
    }finally{
      try{
        db.DBClose();
      }catch(Exception ex){}
    }
    return returnValue;
  }其实它跟ResultSet 差不多，不过多了一些功能，
能够对数据库操作。
你可以去sun下载，上面有好多例子。