用c#写的asp+域名查询程序
类别: ASP.NET教程 
asp来进步实在是太大了，尽管用asp+组件也能实现域名查询的功能，并且前几天我用vc写过这么个组件，但用asp+简单方
便多了。好了，废话少提，看源码吧。
<% @Page Language=\"C#\" %>
<% @Assembly Name=\"System.Net\" %>
<% @Import Namespace=\"System.Net.Sockets\" %>
<% @Import Namespace=\"System.Text\" %>
<% @Import Namespace=\"System.IO\" %>
<% @Import Namespace=\"System.Collections\" %>
<script language=\"C#\" runat=\"server\">
void doQuery(Object sender, EventArgs e)
{
String strDomain = txtDomain.Text;
char[] chSplit = {\'.\'};
string[] arrDomain = strDomain.Split(chSplit);
int nLength = arrDomain[1].Length ;
Hashtable table = new Hashtable();
table.Add(\"de\", \"whois.denic.de\");
table.Add(\"be\", \"whois.dns.be\");
table.Add(\"gov\", \"whois.nic.gov\");
table.Add(\"mil\", \"whois.nic.mil\");
String strServer ; //define whois server
//if the domainname\'s end is cn then the server is cnnic ,otherwise is networksolutions
if (arrDomain[arrDomain.Length - 1] == \"cn\")
{
strServer = \"159.226.6.139\" ;
}
else
{
strServer = \"whois.networksolutions.com\";
}
if (table.ContainsKey(arrDomain[1]))
{
strServer = table[arrDomain][1]].ToString();
}
else if (nLength == 2)
{
// 2-letter TLD\'s always default to RIPE in Europe
strServer = \"whois.ripe.net\";
}
String strResponse;
bool bSuccess = DoWhoisLookup(strDomain, strServer, out strResponse);
if (bSuccess)
{
txtResult.Text = strResponse;
}
else
{
txtResult.Text = \"Lookup failed\";
}
}
bool DoWhoisLookup(String strDomain, String strServer, out String strResponse)
{
strResponse = \"none\";
bool bSuccess = false;
TCPClient tcpc = new TCPClient();
if (0 == tcpc.Connect(strServer, 43))
{
strDomain += \"/r/n\";
Byte[] arrDomain = Encoding.ASCII.GetBytes(strDomain.ToCharArray());
try
{
Stream s = tcpc.GetStream();
s.Write(arrDomain, 0, strDomain.Length);
StreamReader sr = new StreamReader(tcpc.GetStream(), Encoding.ASCII);
StringBuilder strBuilder = new StringBuilder();
while (-1 != sr.Peek())
{
strBuilder.Append(sr.ReadLine()+\"<br>\");
}
tcpc.Close();
bSuccess = true;
strResponse = strBuilder.ToString();
}
catch(Exception e)
{
strResponse = e.ToString();
}
return bSuccess;
}
else
{
strResponse = \"Could not connect to Whois server\";
return false;
}
return false;
}
</script>
<html>
<head>
<title></title>
</head>
<body>
<form runat=\"server\">
Domain name: WWW . <asp:TextBox id=\"txtDomain\" value=\"\" runat=\"server\" />
<asp:Button id=\"btnQuery\" OnClick=\"doQuery\" text=\"Query!\" runat=\"server\" />
<BR><HR width=\"100%\"><BR>
<asp:label id=\"txtResult\" runat=\"server\" />
</form>
</body>
</html>
from http://www.top888.net/zwcj/10-13/jc01.htm
- 上一篇: asp+的论坛列表程序---页面部分
- 下一篇: ASP+联结数据库
