根据url获取网站HTML内容

/// <summary>   

/// 根据url获取网站HTML内容   

/// </summary>    /// <param name="url">网址</param>

/// <returns>获取网站HTML内容</returns>   

public string GetHtmlContentByUrl(string url)   

{     

　　var htmlContent = string.Empty;       

　　var httpWebRequest = (HttpWebRequest)WebRequest.Create(url);       

　　httpWebRequest.Timeout = 10000000;       

　　var httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();       

　　var stream = httpWebResponse.GetResponseStream();

      if (stream != null)       

　　{           

　　　　var streamReader = new StreamReader(stream, System.Text.Encoding.UTF8);           

　　　　htmlContent = streamReader.ReadToEnd();           

　　　　streamReader.Close();           

　　　　streamReader.Dispose();           

　　　　stream.Close();           

　　　　stream.Dispose();       

　　}

      httpWebResponse.Close();       

　　return htmlContent;   

}