C〓URLパラメータ値取得方法
4368 ワード
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/// .
///
public void Test()
{
// URL
//string parmStr = Request.UrlReferrer.Query;
//NameValueCollection col = GetQueryString(parmStr);
string pageURL = "http://www.google.com.hk/search?hl=zh-CN&source=hp&q=%E5%8D%9A%E6%B1%87%E6%95%B0%E7%A0%81&aq=f&aqi=g2&aql=&oq=&gs_rfai=";
Uri uri = new Uri(pageURL);
string queryString = uri.Query;
NameValueCollection col = GetQueryString(queryString);
string searchKey = col["q"];
// searchKey = " "
}
///
/// .
///
///
///
public static NameValueCollection GetQueryString(string queryString)
{
return GetQueryString(queryString, null, true);
}
///
/// .
///
///
///
///
///
public static NameValueCollection GetQueryString(string queryString, Encoding encoding, bool isEncoded)
{
queryString = queryString.Replace("?", "");
NameValueCollection result = new NameValueCollection(StringComparer.OrdinalIgnoreCase);
if (!string.IsNullOrEmpty(queryString))
{
int count = queryString.Length;
for (int i = 0; i < count; i++)
{
int startIndex = i;
int index = -1;
while (i < count)
{
char item = queryString[i];
if (item == '=')
{
if (index < 0)
{
index = i;
}
}
else if (item == '&')
{
break;
}
i++;
}
string key = null;
string value = null;
if (index >= 0)
{
key = queryString.Substring(startIndex, index - startIndex);
value = queryString.Substring(index + 1, (i - index) - 1);
}
else
{
key = queryString.Substring(startIndex, i - startIndex);
}
if (isEncoded)
{
result[MyUrlDeCode(key, encoding)] = MyUrlDeCode(value, encoding);
}
else
{
result[key] = value;
}
if ((i == (count - 1)) && (queryString[i] == '&'))
{
result[key] = string.Empty;
}
}
}
return result;
}
///
/// URL.
///
/// null
///
///
public static string MyUrlDeCode(string str, Encoding encoding)
{
if (encoding == null)
{
Encoding utf8 = Encoding.UTF8;
// utf-8
string code = HttpUtility.UrlDecode(str.ToUpper(), utf8);
// .
string encode = HttpUtility.UrlEncode(code, utf8).ToUpper();
if (str == encode)
encoding = Encoding.UTF8;
else
encoding = Encoding.GetEncoding("gb2312");
}
return HttpUtility.UrlDecode(str, encoding);
}
説明 string baidu = HttpUtility.UrlDecode("wd=%B2%A9%BB%E3%CA%FD%C2%EB");
string google = HttpUtility.UrlDecode("q=%E5%8D%9A%E6%B1%87%E6%95%B0%E7%A0%81");