C获取网页源代码的5种方法

方法一: using System.Text; using System.Net; private string getHtml(string url) { WebClient myWebClient = new WebClient(); byte[] myDataBuffer = myWebClient.DownloadData (url); return Encoding.Default.GetString(myDataBuffer); } 方法二: public string getHttp(string HttpUrl,string RefererUrl) { string html = ""; try { MSXML2.XMLHTTP Http = new MSXML2.XMLHTTPClass(); xmlhttp.open("GET", Url, false, null, null); Http.open("GET",HttpUrl,false,null,null); Http.setRequestHeader("Referer",RefererUrl); //Http.setRequestHeader("Referer",RefererUrl); Http.setRequestHeader("Content-Type", "text/html;charset=gb2312"); Http.send(""); html = Encoding.Default.GetString((byte[])Http.responseBody); Http = null; } catch { } return html; } public bool getweb(string strURL,out string buf) { buf=""; try { //Uri url=new Uri(strURL,false); HttpWebRequest request; request = (HttpWebRequest)WebRequest.Create(strURL); request.Method="POST"; //Post 请求方式 request.ContentType="text/html;charset=gb2312"; //内容类型 string paraUrlCoded = System.Web.HttpUtility.UrlEncode(""); //参数经过URL 编码 byte[] payload; payload = System.Text.Encoding.GetEncoding("GB2312").GetBytes(paraUrlCoded); //将URL 编码后的字符串转化为字节 request.ContentLength = payload.Length; //设置请求的ContentLength Stream writer = request.GetRequestStream(); //获得请求流 writer.Write(payload,0,payload.Length); //将请求参数写入流 writer.Close(); //关闭请求流 HttpWebResponse response; response = (HttpWebResponse)request.GetResponse(); //获得响应流 Stream s; s = response.GetResponseStream(); StreamReader objReader = new StreamReader(s,System.Text.Encoding.GetEncoding("GB2312")); string HTML = ""; string sLine =""; int i = 0; while (sLine!=null) { i++; sLine = objReader.ReadLine(); if (sLine!=null) HTML += sLine; } //HTML = HTML.Replace("<","<"); //HTML = HTML.Replace(">",...