Csharp/CSharp Tutorial/Network/Uri — различия между версиями

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Текущая версия на 15:20, 26 мая 2010

Reading Web Pages from a Uri

<source lang="csharp">using System; using System.Net; using System.IO; using System.Text;

class MainClass {

   public static void Main(string[] args)
       Uri uri = new Uri("http://www.nfex.ru");
       WebRequest req = WebRequest.Create(uri);
       WebResponse resp = req.GetResponse();
       Stream stream = resp.GetResponseStream();
       StreamReader sr = new StreamReader(stream);
       string s = sr.ReadToEnd();


     Java examples (example source code) Organized by topic </title>

Use a regular expression to extract all fully qualified URIs that refer to HTM files

<source lang="csharp">using System; using System.IO; using System.Net; using System.Text.RegularExpressions; class MainClass {

   private static void Main() 
       string remoteUri = "http://www.nfex.ru";
       WebClient client = new WebClient();
       Console.WriteLine("Downloading {0}", remoteUri);
       string str = client.DownloadString(remoteUri);
       MatchCollection matches = Regex.Matches(str,@"http\S+[^-,;:?]\.htm");
       foreach(Match match in matches) 
           foreach(Group grp in match.Groups) 
               string file = grp.Value.Substring(grp.Value.LastIndexOf("/")+1);


Downloading http://www.nfex.ru
^CTerminate batch job (Y/N)? n

Use Uri

<source lang="csharp">using System; using System.Net;

class MainClass {

 public static void Main() { 

   Uri sample = new Uri("http://www.yoursite.ru/somefile.txt?SomeQuery"); 

   Console.WriteLine("Host: " + sample.Host); 
   Console.WriteLine("Port: " + sample.Port); 
   Console.WriteLine("Scheme: " + sample.Scheme); 
   Console.WriteLine("Local Path: " + sample.LocalPath); 
   Console.WriteLine("Query: " + sample.Query); 
   Console.WriteLine("Path and query: " + sample.PathAndQuery); 



Host: www.yoursite.ru
Port: 80
Scheme: http
Local Path: /somefile.txt
Query: ?SomeQuery
Path and query: /somefile.txt?SomeQuery