求救，抓取百度URL的关键字
if (System.Web.HttpContext.Current.Request.UrlReferrer != null)pUrl = System.Web.HttpContext.Current.Request.UrlReferrer.ToString();
实际用户搜索URL：
http://www.baidu.com/s?ie=gb2312&bs=%B9%E2%D7%D3%C4%DB%B7%F4%D2%C7%20%BC%DB%B8%F1&sr=&z=&cl=3&f=8&wd=%D7%F8%CA%BD%CF%E3%D1%AC%D2%A9%D4%A1%B2%D5%20%BC%DB%B8%F1&ct=0
但是确得到如下URL:
http://www.baidu.com/s?ie=gb2312&bs=%B9%E2%D7%D3%C4?+%BC?&sr=&z=&cl=3&f=8&wd=%D7%F8?%CF%E3???+%BC?&ct=0
请问怎么解决啊？ --------------------编程问答-------------------- 例如用户在百度搜索 “坐式香熏药浴舱 价格 ”进入我的网站，
我用
if (System.Web.HttpContext.Current.Request.UrlReferrer != null)
pUrl = System.Web.HttpContext.Current.Request.UrlReferrer.ToString();
抓取上一页面URL，
但是得到却不正确，
请教大家如何才能得到正确的URL啊？
--------------------编程问答-------------------- 编码有问题 --------------------编程问答-------------------- 这么解决啊？
我的目的是获取用户用百度搜索的关键字：“坐式香熏药浴舱 价格 ”，
help!!! --------------------编程问答-------------------- Server.UrlDecode(str_url);
与
Server.UrlEncode(str_url);
的具体应用,哈。 --------------------编程问答-------------------- // pUrl = HttpUtility.UrlDecode(pUrl, System.Text.Encoding.GetEncoding("gb2312"));
pUrl = Server.UrlDecode(pUrl);
都用遍了，没有能解决啊
--------------------编程问答-------------------- http://www.softfault.com --------------------编程问答-------------------- 你如果获取过来就有问题的话，那就不知道问题在那里了 --------------------编程问答-------------------- 获取过来没问题，是编码有问题 --------------------编程问答--------------------
using System;--------------------编程问答-------------------- www.bj2scmm.com --------------------编程问答-------------------- 当初我抓的是有道的搜索，把你的所要传的值转的百度的搜索页面，然后把那个页面把不用的链接都剃掉，在写到div中，只是给你点思路，后台因为有道的那个页面样式换了，所以整过搜索功能都用不了！呵呵
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Text.RegularExpressions;
using System.Text;
namespace BxgAdmin
{
public class keyword
{
private string[][] _Enginers = new string[][] {
new string[]{"google","utf8","q"},
new string[]{"baidu","gb2312","wd"},
new string[]{"yahoo","utf8","p"},
new string[]{"yisou","utf8","search"},
new string[]{"live","utf8","q"},
new string[]{"tom","gb2312","word"},
new string[]{"163","gb2312","q"},
new string[]{"iask","gb2312","k"},
new string[]{"soso","gb2312","w"},
new string[]{"sogou","gb2312","query"},
new string[]{"zhongsou","gb2312","w"},
new string[]{"3721","gb2312","p"},
new string[]{"openfind","utf8","q"},
new string[]{"alltheweb","utf8","q"},
new string[]{"lycos","utf8","query"},
new string[]{"onseek","utf8","q"}
};
//搜索引擎名称
private string _EngineName = "";
public string EngineName
{
get
{
return _EngineName;
}
}
private string keyurl;
//搜索引擎编码
private string _Coding = "utf8";
public string Coding
{
get
{
return _Coding;
}
}
//搜索引擎关键字查询参数名称
private string _RegexWord = "";
public string RegexWord
{
get
{
return _RegexWord;
}
}
private string _Regex = @"(";
public void EngineRegEx(string myString)
{
for (int i = 0, j = _Enginers.Length; i < j; i++)
{
if (myString.Contains(_Enginers[i][0]))
{
_EngineName = _Enginers[i][0];
_Coding = _Enginers[i][1];
_RegexWord = _Enginers[i][2];
_Regex += _EngineName + @"\.+.*[?/&]" + _RegexWord + @"[=:])(?<key>[^&]*)";
break;
}
}
}
public string SearchName(string str)
{
for (int i = 0, j = _Enginers.Length; i < j; i++)
{
if (str.Contains(_Enginers[i][0]))
{
keyurl = _Enginers[i][0];
break;
}
}
return keyurl;
}
public string SearchKey(string myString)//获得关键字
{
EngineRegEx(myString.ToLower());
if (_EngineName != "")
{
Regex myReg = new Regex(_Regex, RegexOptions.IgnoreCase);
Match matche = myReg.Match(myString);
myString = matche.Groups["key"].Value;
//去处表示为空格的+
myString = myString.Replace("+", " ");
if (_Coding == "gb2312")
{
myString = GetUTF8String(myString);
}
else
{
myString = Uri.UnescapeDataString(myString);
}
}
return myString;
}
public string GetUTF8String(string myString)
{
Regex myReg = new Regex("(?<key>%..%..)", RegexOptions.IgnoreCase);
MatchCollection matches = myReg.Matches(myString);
string myWord;
for (int i = 0, j = matches.Count; i < j; i++)
{
myWord = matches[i].Groups["key"].Value.ToString();
myString = myString.Replace(myWord, GB2312ToUTF8(myWord));
}
return myString;
}
public string GB2312ToUTF8(string myString)
{
string[] myWord = myString.Split('%');
byte[] myByte = new byte[] { Convert.ToByte(myWord[1], 16), Convert.ToByte(myWord[2], 16) };
Encoding GB = Encoding.GetEncoding("GB2312");
Encoding U8 = Encoding.UTF8;
myByte = Encoding.Convert(GB, U8, myByte);
char[] Chars = new char[U8.GetCharCount(myByte, 0, myByte.Length)];
U8.GetChars(myByte, 0, myByte.Length, Chars, 0);
return new string(Chars);
}
}
}
补充：.NET技术 , ASP.NET
