据说微软提供的jdbc驱动不支持"反复查询",所以用net.sourceforge.jtds.jdbc.Driver(http://jtds.sourceforge.net/)在Win2003Server上安装SQLSERVER2000，必须安装补丁sp3
写类时注意：JAVA中CLASS.FORNAME方法必须是一个可以捕获的错误，把它放在TRY{}CATCH(CLASSNOTFOUNTEXCEPTION){}中就不会出错了另CLASS_PATH中必须加入jtds-x-x-x.jar的完整路径名如：./;...;D:/j2sdk1.4.2_01/jre/lib/ext/jtds-0.5.1.jar;
/* * Author:liufei * Homepage: http://www.liufei.com * Copyright 2003 henan SUNCER software Inc. All rights reserved. */import java.sql.*;import java.util.*;class Sql { public static void main(String[] args) { try{ String query="select * from Orders"; String URL="jdbc:jtds:sqlserver://135.0.0.2:1433/Northwind;USER=sa;PASSWORD=webserver"; Class.forName("net.sourceforge.jtds.jdbc.Driver"); Connection conn=DriverManager.getConnection(URL); Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE); ResultSet rs=stmt.executeQuery(query); int i=0; for(i=0;i<10;i++){ rs.next(); System.out.println(rs.getString(1)); }//SQLServer2K自带的样例数据库Northwind中，表Orders有多于10条，可能上百条记录，所以只列10条！ }catch(Exception e){ System.out.println(e.getMessage()); } }}
用JSP连接：
必须将jtds.jar放至WEB-INF/lib目录下
test.jsp内容如下：
<%@ page contentType="text/html;charset=gb2312"%> <%@ page import="java.sql.*"%> <html> <body> <%Class.forName("net.sourceforge.jtds.jdbc.Driver").newInstance(); String url="jdbc:jtds:sqlserver://135.0.0.2:1433/Northwind;USER=sa;PASSWORD=webserver";
Connection conn= DriverManager.getConnection(url); Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE); String sql="select * from Orders"; ResultSet rs=stmt.executeQuery(sql); while(rs.next()) {%> 您的第一个字段内容为：<%=rs.getString(1)%> 您的第二个字段内容为：<%=rs.getString(2)%> <%}%> <%out.print("数据库操作成功，恭喜你");%> <%rs.close(); stmt.close(); conn.close(); %> </body> </html>
