C#获取网页HTML源码实例

本文实例讲述了c#获取网页html源码的方法，分享给大家供大家参考。具体方法如下：

关键代码如下：

/// <summary>
/// 获取网页html源码
/// </summary>
/// <param name="url">链接 eg:http://www.baidu.com/ </param>
/// <param name="charset">编码 eg:encoding.utf8</param>
/// <returns>html源码</returns>
public static string gethtmlsource(string url, encoding charset)
{

    string _html = string.empty;
    try
    {
 httpwebrequest _request = (httpwebrequest)webrequest.create(url);
 httpwebresponse _response = (httpwebresponse)_request.getresponse();
 using (stream _stream = _response.getresponsestream())
 {
     using (streamreader _reader = new streamreader(_stream, charset))
     {
  _html = _reader.readtoend();
     }
 }
    }
    catch (webexception ex)
    {
 using (streamreader sr = new streamreader(ex.response.getresponsestream()))
 {
     _html = sr.readtoend();
 }
    }
    catch (exception ex)
    {
 _html = ex.message;
    }
    return _html;
}

测试代码如下：

public static void gethtmlsourcetest()
{
    string _url = "http://www.baidu.com/";
    string _htmlsource = httpwebrequestutilsv2.gethtmlsource(_url, encoding.utf8);
    console.writeline(_htmlsource);
}

测试效果如下图所示：

希望本文所述对大家的c#程序设计有所帮助