C # simple webpage access sample

Write down the backup.

Synchronous call of httpwebrequest

UriBuilder uri = new UriBuilder("http://www.cnblogs.com/xiaokang088/rss.aspx");            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri.Uri);            HttpWebResponse response = (HttpWebResponse)request.GetResponse();            var stream = response.GetResponseStream();            StreamReader reader = new StreamReader(stream);            var str = reader.ReadToEnd();

Httpwebrequest asynchronous call

 public MainWindow()        {            InitializeComponent();            Loaded += new RoutedEventHandler(MainWindow_Loaded);        }        void MainWindow_Loaded(object sender, RoutedEventArgs e)        {            UriBuilder uri = new UriBuilder("http://www.cnblogs.com/xiaokang088/rss.aspx");            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri.Uri);            request.BeginGetResponse(new AsyncCallback(handleResponce), request);        }        private void handleResponce(IAsyncResult ar)        {            HttpWebRequest request = ar.AsyncState as HttpWebRequest;            var reponse = request.EndGetResponse(ar) as HttpWebResponse;            var stream = reponse.GetResponseStream();            StreamReader reader = new StreamReader(stream);            string str = reader.ReadToEnd();        }

WebClient, which is the simplest. Pay attention to encoding; otherwise, garbled characters will occur.

  WebClient client = new WebClient();            //client.Encoding = Encoding.UTF8;            var address = "http://www.cnblogs.com/xiaokang088/rss.aspx";            string content = client.DownloadString(address);

 

Finished!