在.net中使用xmlhttp组件读取网页源码

using MSXML2;
string url = "http://www.s**.com";

XMLHTTPClass myXMLHTTP = new XMLHTTPClass();
//string url = "http://www.s**.com";
myXMLHTTP.open("GET", url, false, "", "");
myXMLHTTP.send("");
this.textBox1.Text = myXMLHTTP.responseText;

+++++++++++++++++++++++++++++++++++++++

public static CookieContainer PostLogin()
{
string url = "http://www.s**.com";
//string args = "username=c5k00144&passwd=aa0000";
//string outdata = "";

string args = "";
string outdata = "";

Encoding encoding = Encoding.GetEncoding("gb2312");

CookieCollection myCookies = null;
CookieContainer myCookieContainer = new CookieContainer();

HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(url);
myHttpWebRequest.Accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-excel, application/msword, application/x-shockwave-flash, */*";
//myHttpWebRequest.Referer = "http://www.s**.com";
myHttpWebRequest.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 2.0.50727)";
myHttpWebRequest.ContentType = "application/x-www-form-urlencoded";
myHttpWebRequest.Method = "POST";
myHttpWebRequest.CookieContainer = myCookieContainer;
// 写入
byte[] b = encoding.GetBytes(args);
myHttpWebRequest.ContentLength = b.Length;
using (System.IO.Stream sw = myHttpWebRequest.GetRequestStream())
{
sw.Write(b, 0, b.Length);
if (sw != null)
sw.Close();
}



HttpWebResponse response = null;
System.IO.StreamReader sr = null;
response = (HttpWebResponse)myHttpWebRequest.GetResponse();
myCookies = response.Cookies;
sr = new System.IO.StreamReader(response.GetResponseStream(), encoding);
outdata = sr.ReadToEnd();
return myCookieContainer;
}

public static string GETCommand(string url, CookieContainer myCookieContainer)
{
string outdata = "";
Encoding encoding = Encoding.GetEncoding("gb2312");

HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(url);
myHttpWebRequest.ContentType = "text/html";
myHttpWebRequest.Method = "GET";
myHttpWebRequest.CookieContainer = myCookieContainer;

HttpWebResponse response = null;
System.IO.StreamReader sr = null;
response = (HttpWebResponse)myHttpWebRequest.GetResponse();
sr = new System.IO.StreamReader(response.GetResponseStream(), encoding);
outdata = sr.ReadToEnd();

return outdata;
}

private string GetContentFromUrll(string _requestUrl)
{
string _StrResponse = "";
HttpWebRequest _WebRequest = (HttpWebRequest)WebRequest.Create(_requestUrl);
_WebRequest.Method = "GET";
WebResponse _WebResponse = _WebRequest.GetResponse();
System.IO.StreamReader _ResponseStream = new System.IO.StreamReader(_WebResponse.GetResponseStream(), System.Text.Encoding.GetEncoding("gb2312"));
_StrResponse = _ResponseStream.ReadToEnd();
_WebResponse.Close();
_ResponseStream.Close();
return _StrResponse;
}

public string GetContentFromWeb(string url, string acyuser, string acypass, string indata)
{
StringBuilder sb = new StringBuilder();
object acyen = false;
XMLHTTPClass myXMLHTTP = new XMLHTTPClass();
try
{
myXMLHTTP.open("get", url, acyen, acyuser, acypass);
myXMLHTTP.setRequestHeader("Accept-Lauguage", "zh-cn");
myXMLHTTP.setRequestHeader("Content-Type", "text/html;charset=gb2312");
myXMLHTTP.send(indata);
//byte[] DefaultBytes = (byte[])myXMLHTTP.responseBody;
//sb.Append(Encoding.Default.GetString(DefaultBytes));
sb.Append(myXMLHTTP.responseText);
}
catch (Exception ex)
{
string tmp = ex.Message;
return "";
}
return sb.ToString();
}

public string GetContentFromWeb(string url, string indata)
{
StringBuilder sb = new StringBuilder();
object acyen = false;
object acyuser = null;
object acypass = null;
XMLHTTPClass myXMLHTTP = new XMLHTTPClass();
try
{
myXMLHTTP.open("get", url, acyen, acyuser, acypass);
myXMLHTTP.setRequestHeader("Accept-Lauguage", "zh-cn");
myXMLHTTP.setRequestHeader("Content-Type", "text/html;charset=gb2312");
myXMLHTTP.send(indata);
sb.Append(myXMLHTTP.responseText);
}
catch (Exception ex)
{
string tmp = ex.Message;
return "";
}
return sb.ToString();
}

public string GetContent(string url)
{
string content = "";
HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(url);
HttpWebResponse myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse();

// WebResponse myResponseStream = myHttpWebResponse.GetResponseStream();

System.IO.Stream myResponseStream = myHttpWebResponse.GetResponseStream();

System.IO.StreamReader myStreamReader = new System.IO.StreamReader(myResponseStream, Encoding.GetEncoding("gb2312"));
content = myStreamReader.ReadToEnd();
myStreamReader.Close();
myResponseStream.Close();
return content;
}