C#抓取网页的几种方法

/// <summary>   
/// 用HttpWebRequest取得网页源码   
/// 对于带BOM的网页很有效，不管是什么编码都能正确识别   
/// </summary>   
/// <param name="url">网页地址" </param>    
/// <returns>返回网页源文件</returns>   
public static string GetHtmlSource2(string  url)
{
    //处理内容   
    string html = "";
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
    request.Accept = "*/*"; //接受任意文件
    request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.1.4322)"; // 模拟使用IE在浏览 http://www.52mvc.com
    request.AllowAutoRedirect = true;//是否允许302
    //request.CookieContainer = new CookieContainer();//cookie容器，
    request.Referer = url; //当前页面的引用

    HttpWebResponse response = (HttpWebResponse)request.GetResponse();
    Stream stream = response.GetResponseStream();
    StreamReader reader = new StreamReader(stream, Encoding.Default);
    html = reader.ReadToEnd();
    stream.Close(); 
    return html;
}
//该片段来自于http://outofmemory.cn

标签：c#,.net,网络