c# 访问网页简单 sample

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我是靠谱客的博主暴躁咖啡，最近开发中收集的这篇文章主要介绍c# 访问网页简单 sample，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

记下来备用。

HttpWebRequest 同步调用

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 异步调用

 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 ，最简单，注意编码，否则会乱码

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

完毕！