去年写的了,是从点缀的博客学来的看演示请点这里:http://www.aspxboy.com/whois.aspx代码如下:<% @Page Language="C#" %><% @Import Namespace="System.Net.Sockets" %><% @Import Namespace="System.Text" %><% @Import Namespace="System.IO" %><html><head><title>.Com/.Net/.Org/.Cn 域名Whois信息查询</title><meta name="keywords" content=".Com,.Net,.Org,.Cn 域名Whois信息查询"><meta name="generator" content=".Com/.Net/.Org,.Cn 域名Whois信息查询"><meta name="description" content=".Com/.Net/.Org,.Cn 域名Whois信息查询"><style><!--body,input{ font-family: Tahoma, Verdana; color: #004080; font-size: 12px }a:link,a:visited{ text-decoration: none; color: #004080 }--></style></head><body><form id="fmQuery" runat="server"> 要查询的域名域名: www.<asp:TextBox id="txtDomain" width="100" value="ASPXBOY.COM" runat="server" /> <asp:Button id="btnQuery" OnClick="btn_click" text="查询!" runat="server" />（只能查询.Com/.Net/.Org/.Cn 域名Whois的信息） <a href ="WhoisCode.htm" title="View the source code here!">源代码在这里</a><BR><HR width="550" height="1" align="left"><BR><asp:label id="lblResult" runat="server" /></form></body></html><script language="C#" runat="server">void btn_click(Object sender, EventArgs e){String strServer;String strDomain = txtDomain.Text; String strServerCom = "whois.networksolutions.com"; String strServerCN = "whois.cnnic.net.cn";String strResponse;string[] arrDomain = strDomain.Split('.');if (arrDomain[1].ToUpper()=="CN"){ strServer=strServerCN;}else{ strServer=strServerCom;}bool blSuccess = IsWhosisSuccess(strDomain, strServer, out strResponse);if (blSuccess){lblResult.Text = strResponse;}else{lblResult.Text = "查找失败....";}}bool IsWhosisSuccess(String strDomain, String strServer, out String strResponse){ strResponse = "none"; bool blSuccess = false; TcpClient tcpc = new TcpClient(); try { tcpc.Connect(strServer, 43); } catch(SocketException ex) { strResponse = "连接不到该 Whois server,请稍后再试。"; return false; } strDomain += "\r\n"; Byte[] arrDomain = Encoding.UTF8.GetBytes(strDomain.ToCharArray()); try { Stream s = tcpc.GetStream(); s.Write(arrDomain, 0, strDomain.Length); StreamReader sr = new StreamReader(tcpc.GetStream(), Encoding.UTF8); StringBuilder strBuilder = new StringBuilder(); string strLine = null; while (null != (strLine = sr.ReadLine())) { strBuilder.Append(strLine+"<br>"); } tcpc.Close(); blSuccess = true; string my="Go to Huobazi's WebSite：<a href=\"http://www.aspxboy.com\" title=\".Net男孩社区\">www.AspxBoy.Com</a><br>"; strResponse = strBuilder.ToString()+my; } catch(Exception e) { strResponse = e.ToString(); } return blSuccess;} </script>
转载于:https://www.cnblogs.com/huobazi/archive/2004/02/04/WhoisInAspDotNet.html
相关资源：C# 2008 域名批量查询源码