请求网址并解析返回的html

目的，把远程服务器传回的Html，解析到类里面，为GridView等提供数据源
1 、向远程服务器Post数据
public int PostData(string url, string data, out string info)
{

info = "";
CookieContainer cc = new CookieContainer();
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
request.CookieContainer = cc;
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
Stream requestStream = request.GetRequestStream();
byte[] byteArray = Encoding.UTF8.GetBytes(data);
requestStream.Write(byteArray, 0, byteArray.Length);
requestStream.Close();
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
Uri responseUri = response.ResponseUri;
Stream receiveStream = response.GetResponseStream();
Encoding encode = System.Text.Encoding.GetEncoding("utf-8");
StreamReader readStream = new StreamReader(receiveStream, encode);
string result = readStream.ReadToEnd();
info = result;
return 0;

}2、解析返回的html，有省略
public ClassInfo[] GetClass(string html)
{

ArrayList ar = new ArrayList();
ArrayList arr = new ArrayList();
string table = "";
Regex regtable = new Regex(@"(?<=<table.*>).*?(?=</table>)", RegexOptions.Singleline);
Match ma = regtable.Match(html);
while (ma.Success)
{
if (ma.Value.Trim() != "")
{
arr.Add(HttpUtility.HtmlDecode(ma.Value));
}
ma = ma.NextMatch();
}
for (int i = 0; i < arr.Count; i )
{
table = arr[i].ToString() table;
}

Regex reg = new Regex(@"(?<=<.*?>).*?(?=<.*?>)", RegexOptions.Singleline);
Match m = reg.Match(table);

while (m.Success)
{
if (m.Value.Trim() != "")
{

ar.Add(HttpUtility.HtmlDecode(m.Value));
}
m = m.NextMatch();
}

ClassInfo[] ci = new ClassInfo[classno];
for (int i = 0; i < classno; i )
{
ci[i] = new ClassInfo();
ci[i].RegisterDate = (ar[i * 8 0]).ToString();

ci[i].LoginDate = (ar[i * 8 1]).ToString();
ci[i].LogoutDate = (ar[i * 8 2]).ToString();
ci[i].UseMin = ar[i * 8 3].ToString();
ci[i].ClassName = ar[i * 8 5].ToString();
ci[i].ClassType = ar[i * 8 6].ToString();
ci[i].Percent = ar[i * 8 7].ToString();

}

return ci;

}
3、定义ClassInfo类（课程类），用CodeSmith生成
public class ClassInfo
{
Member Variables#region Member Variables

protected string _loginDate;
protected string _logoutDate;
protected string _registerDate;
protected string _useMin;
protected string _className;
protected string _classType;
protected string _percent;
//protected string _nouse;
#endregion

Constructors#region Constructors

public ClassInfo() { }

public ClassInfo(string loginDate, string logoutDate, string registerDate, string useMin, string className, string classType, string percent)
{
this._loginDate = loginDate;
this._logoutDate = logoutDate;
this._registerDate = registerDate;
this._useMin = useMin;
this._className = className;
this._classType = classType;
this._percent = percent;
}

#endregion

Public Properties#region Public Properties
// public string NoUse
// {
// get{return _nouse;}
// set{ _nouse= value;}
// }

public string LoginDate
{
get { return _loginDate; }
set { _loginDate = value; }
}

public string LogoutDate
{
get { return _logoutDate; }
set { _logoutDate = value; }
}

public string RegisterDate
{
get { return _registerDate; }
set { _registerDate = value; }
}

public string UseMin
{
get { return _useMin; }
set { _useMin = value; }

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