sql server的JDBC和分頁代碼

package beans;
import java.sql.*;
public class connDB...{
                Connection conn=null;
                Statement stmt=null;
                ResultSet rs=null;
        public connDB()...{
                try...{
                        Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
                }catch(java.lang.ClassNotFoundException e)...{
                        System.err.println(e.getMessage());
                }
        }
 /**//***************************************************
        *method name: executeQuery()
        *功能:執行查詢操作
        *return value: ResultSet
        *2005-12-05
****************************************************/
        public ResultSet executeQuery(String sql)...{
                try...{
                        conn=DriverManager.getConnection("jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=db_bookmanage;user=sa;password=");
                        stmt=conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
                        rs=stmt.executeQuery(sql);
                }catch(SQLException ex)...{
                        System.err.println(ex.getMessage());
                        }
                return rs;
        }
/**//***************************************************
         *method name: executeUpdate()
         *功能:執行更新操作
         *return value: int
         *2005-12-05
****************************************************/

        public int executeUpdate(String sql)...{
                int result=0;
                try...{
                        conn=DriverManager.getConnection("jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=db_bookmanage;user=sa;password=");
                        stmt=conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
                        result=stmt.executeUpdate(sql);
                }catch(SQLException ex)...{
                        result=0;
                        }
                return result;
        }
 /**//***************************************************
        *method name: close()
        *功能:關閉數據庫鏈接
        *return value:  void
        *2005-12-05
****************************************************/
       public void close()...{
         try ...{
           if (rs != null) rs.close();
         }
         catch (Exception e) ...{
           e.printStackTrace(System.err);
         }
         try ...{
           if (stmt != null) stmt.close();
         }
         catch (Exception e) ...{
           e.printStackTrace(System.err);
         }
         try ...{
           if (conn != null) ...{
             conn.close();
           }
         }
         catch (Exception e) ...{
           e.printStackTrace(System.err);
         }
       }
 

分頁查詢的代碼

1:

String str=(String)request.getParameter("Page");
if(str==null)...{
 str="0";
}
int pagesize=5;
rs.last();
int RecordCount=rs.getRow();
int maxPage=0;
maxPage=(RecordCount%pagesize==0)?(RecordCount/pagesize):(RecordCount/pagesize+1);

int Page=Integer.parseInt(str);
if(Page<1)...{
 Page=1;
}else...{
 if(((Page-1)*pagesize+1)>RecordCount)...{
  Page=maxPage;
 }
}
rs.absolute((Page-1)*pagesize+1);
for(int i=1;i<=pagesize;i++)...{
  %>

 2:

 

<table width="100%"  border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td align="right">當前頁數：[<%=Page%>/<%=maxPage%>]&nbsp;
 <%if(Page>1)...{%>
 <a href="index.jsp?Page=1">第一頁</a>　<a href="index.jsp?Page=<%=Page-1%>">上一頁</a>
 <%
 }
 if(Page<maxPage)...{
 %>
 　<a href="index.jsp?Page=<%=Page+1%>">下一頁</a>　<a href="index.jsp?Page=<%=maxPage%>">最後一頁&nbsp;</a>
 <%}%>
 </td>
  </tr>
</table>