protected void Page_Load(object sender, EventArgs e)
{
using(StreamWriter sw = new StreamWriter(Request.PhysicalApplicationPath+"index.html",false,System.Text.Encoding.GetEncoding("gb2312")))
{
sw.Write(getHtml("http://www.goudiannao.com/Default.aspx", "gb2312"));
}
}
private string getHtml(string url, string charSet)//url是要访问的网站地址,charSet是目标网页的编码,如果传入的是null或者"",那就自动分析网页的编码
{
WebClient myWebClient = new WebClient(); //创建WebClient实例myWebClient
// 需要注意的:
//有的网页可能下不下来,有种种原因比如需要cookie,编码问题等等
//这是就要具体问题具体分析比如在头部加入cookie
// webclient.Headers.Add("Cookie", cookie);
//这样可能需要一些重载方法。根据需要写就可以了
//获取或设置用于对向 Internet 资源的请求进行身份验证的网络凭据。
myWebClient.Credentials = CredentialCache.DefaultCredentials;
//如果服务器要验证用户名,密码
//NetworkCredential mycred = new NetworkCredential(struser, strpassword);
//myWebClient.Credentials = mycred;
//从资源下载数据并返回字节数组。(加@是因为网址中间有"/"符号)
byte[] myDataBuffer = myWebClient.DownloadData(url);
string strWebData = Encoding.Default.GetString(myDataBuffer);
//获取网页字符编码描述信息
Match charSetMatch = Regex.Match(strWebData, "<meta([^<]*)charset=([^<]*)\"", RegexOptions.IgnoreCase | RegexOptions.Multiline);
string webCharSet = charSetMatch.Groups[2].Value;
if (charSet == null || charSet == "")
charSet = webCharSet;
if (charSet != null && charSet != "" && Encoding.GetEncoding(charSet) != Encoding.Default)
strWebData = Encoding.GetEncoding(charSet).GetString(myDataBuffer);
return strWebData;
}