ASP.NET 取得客户端信息

using System.Collections.Specialized

int loop1, loop2;
NameValueCollection coll;

// Load ServerVariable collection into NameValueCollection object.
coll=Request.ServerVariables;
// Get names of all keys into a string array.
String[] arr1 = coll.AllKeys;
for (loop1 = 0; loop1 < arr1.Length; loop1 )
{
Response.Write("Key: " arr1[loop1] "<br>");
String[] arr2=coll.GetValues(arr1[loop1]);
for (loop2 = 0; loop2 < arr2.Length; loop2 )
{
Response.Write("Value " loop2 ": " arr2[loop2] "<br>");
}
}

====以下是一个取得IP和操作系统以及浏览器的例子=========

private string getIp()
{/*穿过代理服务器取远程用户真实IP地址：*/
if(Request.ServerVariables["HTTP_VIA"]!=null)
return Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();
else
return Request.ServerVariables["REMOTE_ADDR"].ToString();
}
Label2.Text =getIp();
HttpBrowserCapabilities bc = new HttpBrowserCapabilities();
bc = Request.Browser;
string xitong ="你的操作系统为";
Label3.Text=xitong bc.Platform " 浏览器类型:" bc.Type;