using System;
using System.Collections.Specialized;
using System.Text.RegularExpressions;
![](/Images/OutliningIndicators/None.gif)
namespace UrlParse
![](/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](/Images/OutliningIndicators/ContractedBlock.gif)
{
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
/**//// <summary>
/// 分析 url 字符串中的参数信息
/// </summary>
class Class1
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
{
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
/**//// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main(string[] args)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
{
string url = "http://www.xxx.com/xyz/hello.asp?a=3&typeId=45&cc=ILoveYou";
NameValueCollection nvc;
string baseUrl;
![](/Images/OutliningIndicators/InBlock.gif)
ParseUrl(url, out baseUrl, out nvc);
![](/Images/OutliningIndicators/InBlock.gif)
// output results
Console.WriteLine("baseUrl: {0}", baseUrl);
Console.WriteLine("parameters:");
![](/Images/OutliningIndicators/InBlock.gif)
for (int i = 0; i < nvc.Count; i++)
Console.WriteLine("{0}, {1}", nvc.Keys[i], nvc[i]);
![](/Images/OutliningIndicators/InBlock.gif)
Console.ReadLine();
}
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
/**//// <summary>
/// 分析 url 字符串中的参数信息
/// </summary>
/// <param name="url">输入的 URL</param>
/// <param name="baseUrl">输出 URL 的基础部分</param>
/// <param name="nvc">输出分析后得到的 (参数名,参数值) 的集合</param>
/// <author>木野狐(Neil Chen)</author>
/// <date>2005-06-23</date>
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
static void ParseUrl(string url, out string baseUrl, out NameValueCollection nvc)
{
if (url == null)
throw new ArgumentNullException("url");
![](/Images/OutliningIndicators/InBlock.gif)
nvc = new NameValueCollection();
baseUrl = "";
![](/Images/OutliningIndicators/InBlock.gif)
if (url == "")
return;
int questionMarkIndex = url.IndexOf('?');
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
if (questionMarkIndex == -1)
{
baseUrl = url;
return;
}
baseUrl = url.Substring(0, questionMarkIndex);
if (questionMarkIndex == url.Length - 1)
return;
string ps = url.Substring(questionMarkIndex + 1);
![](/Images/OutliningIndicators/InBlock.gif)
// 开始分析参数对
Regex re = new Regex(@"(^|&)?(\w+)=([^&]+)(&|$)?", RegexOptions.Compiled);
MatchCollection mc = re.Matches(ps);
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
foreach (Match m in mc)
{
nvc.Add(m.Result("$2"), m.Result("$3"));
}
}
}
}
![](/Images/OutliningIndicators/None.gif)