C# 登录网页,在浏览器中打开网页

/// <summary>
/// 发送登录信息，进行登录
/// </summary>
private void Login_Click()
{
// 设置登录信息
string url = "http://10.80.3.212/zentao/user-login.html";
string postData = "account=test&password=123456&referer=http://10.80.3.212/zentao/my/";

// 发送post信息，进行登录
CookieCollection cookie;
string html = HttpTool.GetHtml(url, postData, Method.POST, out cookie);

if (cookie.Count > 0)
{
MessageBox.Show("您已成功登录！");
}
}

/// <summary>
/// 获取其他页面数据信息(登录成功后,或不需要登录)
/// </summary>
private void getURL(string url)
{
string data = HttpTool.GetHtml(url);   // 实时获取网页数据
MessageBox.Show(data);
}

/// <summary>
/// 登录成功后，在浏览器中打开url
/// </summary>
private void openURl(string url)
{
HttpTool.openUrl(url);
//System.Diagnostics.Process.Start(url); //直接可以访问的网页打开方式
}

public enum Method
{
POST = 0,
GET = 1
}

/// <summary>
/// 用于发送http请求，访问WEB页面
/// </summary>
public class HttpTool   //此类参考：http://blog.csdn.net/htsnoopy/article/details/7094224
{
#region 设置信息

public static CookieContainer cookie = new CookieContainer();           // 用于记录访问网页时cookie数据
public static CookieCollection cookieCollection;

private static string ContentType = "application/x-www-form-urlencoded";
private static string Accept = "text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5";
private static string UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.14) Gecko/20080404 Firefox/2.0.0.14";

public static void setting(string contentType, string accept, string userAgent)
{
ContentType = contentType;
Accept = accept;
UserAgent = userAgent;
}

public static void setting(CookieContainer cc, string contentType, string accept, string userAgent)
{
cookie = cc;
ContentType = contentType;
Accept = accept;
UserAgent = userAgent;
}

/// <summary>
/// 清空cookie数据
/// </summary>
public static void clearCookie()
{
cookie = new CookieContainer();
}

#endregion

#region 网页数据获取的获取

/// <summary>
/// 获取指定的网页数据（不需要登录，可以直接访问的页面；或已登录）
/// </summary>
public static string GetHtml(string url)
{
return GetHtml(url, out cookieCollection);
}

/// <summary>
/// 获取指定的网页数据（不需要登录，可以直接访问的页面）
/// </summary>
public static string GetHtml(string url, out CookieCollection cookieCollection)
{
try
{
HttpWebRequest httpWebRequest;

httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(url);
httpWebRequest.CookieContainer = cookie;

HttpWebResponse httpWebResponse;
httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
Stream responseStream = httpWebResponse.GetResponseStream();
StreamReader streamReader = new StreamReader(responseStream, Encoding.UTF8);
string html = streamReader.ReadToEnd();
streamReader.Close();
responseStream.Close();

cookieCollection = cookie.GetCookies(new Uri(url));

return html;
}
catch (Exception)
{
cookieCollection = null;
return null;
}
}
#endregion

#region 需要验证帐号信息的网页，数据获取

/// <summary>
/// post数据到指定的网址，获取cookie数据，和返回页
/// </summary>
public static string GetHtml(string url, string postData, Method method)
{
return GetHtml(url, postData, method, out cookieCollection);
}

/// <summary>
/// post数据到指定的网址，获取cookie数据，和返回页
/// </summary>
public static string GetHtml(string url, string postData, Method method, out CookieCollection cookieCollection)
{
try
{
if (string.IsNullOrEmpty(postData))
{
return GetHtml(url, out cookieCollection);
}

byte[] byteRequest = Encoding.Default.GetBytes(postData);

HttpWebRequest httpWebRequest;
httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(url);

httpWebRequest.CookieContainer = cookie;
httpWebRequest.ContentType = ContentType;

httpWebRequest.Referer = url;
httpWebRequest.Accept = Accept;
httpWebRequest.UserAgent = UserAgent;
httpWebRequest.Method = method == Method.POST ? "POST" : "GET";
httpWebRequest.ContentLength = byteRequest.Length;

Stream stream = httpWebRequest.GetRequestStream();
stream.Write(byteRequest, 0, byteRequest.Length);
stream.Close();

HttpWebResponse httpWebResponse;
httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
Stream responseStream = httpWebResponse.GetResponseStream();
StreamReader streamReader = new StreamReader(responseStream, Encoding.UTF8);
string html = streamReader.ReadToEnd();
streamReader.Close();
responseStream.Close();

cookieCollection = cookie.GetCookies(new Uri(url));

return html;
}
catch (Exception)
{
cookieCollection = null;
return null;
}
}

/// <summary>
/// 登录成功后，在浏览器中打开指定的url
/// </summary>
public static void openUrl(string url)
{
openUrl(cookieCollection, url);
}

public static void openUrl(CookieCollection cookieCollection, string url)
{
string tmp = "";
for (int i = 0; i < cookieCollection.Count; i++)
{
Cookie c = cookieCollection[i];
tmp += (tmp.Equals("") ? "" : "&") + c.Name.ToString() + "=" + c.Value.ToString();
}

Process.Start(url + "?" + tmp);
}

#endregion

}