C#实现12306自动登录的方法
依然使用IE9的捕获参数，做了一个12306的登录功能。参照了网上童鞋们的做法。
其他都和前面几篇读取余票、票价一样，不过登录要用到证书的问题，这个参考了一个网上的例子。
不过12306会随时变化，下面的登录不一定一直都能成功。如果12306有变化，大家可以根据变化对代码做修改。总之使用的方法不变，就是捕获参数和url，然后自己补充参数。
效果如下：
项目名称：Test12306AutoLogin；
环境：.net 4.0，Visual studio 2010；
项目图：
核心代码如下，
信任证书代码：
public class Messenger
{
public Messenger()
{
}
public void Register(string message, Action callback)
{
this.Register(message, callback, null);
}
public void Register<T>(string message, Action<T> callback)
{
this.Register(message, callback, typeof(T));
}
void Register(string message, Delegate callback, Type parameterType)
{
if (String.IsNullOrEmpty(message))
throw new ArgumentException(\"\'message\' cannot be null or empty.\");
if (callback == null)
throw new ArgumentNullException(\"callback\");
this.VerifyParameterType(message, parameterType);
_messageToActionsMap.AddAction(message, callback.Target, callback.Method, parameterType);
}
[Conditional(\"DEBUG\")]
void VerifyParameterType(string message, Type parameterType)
{
Type previouslyRegisteredParameterType = null;
if (_messageToActionsMap.TryGetParameterType(message, out previouslyRegisteredParameterType))
{
if (previouslyRegisteredParameterType != null && parameterType != null)
{
if (!previouslyRegisteredParameterType.Equals(parameterType))
throw new InvalidOperationException(string.Format(
\"The registered action\'s parameter type is inconsistent with the previously registered actions for message \'{0}\'.\\nExpected: {1}\\nAdding: {2}\",
message,
previouslyRegisteredParameterType.FullName,
parameterType.FullName));
}
else
{
// One, or both, of previouslyRegisteredParameterType or callbackParameterType are null.
if (previouslyRegisteredParameterType != parameterType) // not both null?
{
throw new TargetParameterCountException(string.Format(
\"The registered action has a number of parameters inconsistent with the previously registered actions for message \\\"{0}\\\".\\nExpected: {1}\\nAdding: {2}\",
message,
previouslyRegisteredParameterType == null ? 0 : 1,
parameterType == null ? 0 : 1));
}
}
}
}
public void NotifyColleagues(string message, object parameter)
{
if (String.IsNullOrEmpty(message))
throw new ArgumentException(\"\'message\' cannot be null or empty.\");
Type registeredParameterType;
if (_messageToActionsMap.TryGetParameterType(message, out registeredParameterType))
{
if (registeredParameterType == null)
throw new TargetParameterCountException(string.Format(\"Cannot pass a parameter with message \'{0}\'. Registered action(s) expect no parameter.\", message));
}
var actions = _messageToActionsMap.GetActions(message);
if (actions != null)
actions.ForEach(action => action.DynamicInvoke(parameter));
}
public void NotifyColleagues(string message)
{
if (String.IsNullOrEmpty(message))
throw new ArgumentException(\"\'message\' cannot be null or empty.\");
Type registeredParameterType;
if (_messageToActionsMap.TryGetParameterType(message, out registeredParameterType))
{
if (registeredParameterType != null)
throw new TargetParameterCountException(string.Format(\"Must pass a parameter of type {0} with this message. Registered action(s) expect it.\", registeredParameterType.FullName));
}
var actions = _messageToActionsMap.GetActions(message);
if (actions != null)
actions.ForEach(action => action.DynamicInvoke());
}
private class MessageToActionsMap
{
internal MessageToActionsMap()
{
}
internal void AddAction(string message, object target, MethodInfo method, Type actionType)
{
if (message == null)
throw new ArgumentNullException(\"message\");
if (method == null)
throw new ArgumentNullException(\"method\");
lock (_map)
{
if (!_map.ContainsKey(message))
_map[message] = new List<WeakAction>();
_map[message].Add(new WeakAction(target, method, actionType));
}
}
internal List<Delegate> GetActions(string message)
{
if (message == null)
throw new ArgumentNullException(\"message\");
List<Delegate> actions;
lock (_map)
{
if (!_map.ContainsKey(message))
return null;
List<WeakAction> weakActions = _map[message];
actions = new List<Delegate>(weakActions.Count);
for (int i = weakActions.Count - 1; i > -1; --i)
{
WeakAction weakAction = weakActions[i];
if (weakAction == null)
continue;
Delegate action = weakAction.CreateAction();
if (action != null)
{
actions.Add(action);
}
else
{
// The target object is dead, so get rid of the weak action.
weakActions.Remove(weakAction);
}
}
// Delete the list from the map if it is now empty.
if (weakActions.Count == 0)
_map.Remove(message);
}
// Reverse the list to ensure the callbacks are invoked in the order they were registered.
actions.Reverse();
return actions;
}
internal bool TryGetParameterType(string message, out Type parameterType)
{
if (message == null)
throw new ArgumentNullException(\"message\");
parameterType = null;
List<WeakAction> weakActions;
lock (_map)
{
if (!_map.TryGetValue(message, out weakActions) || weakActions.Count == 0)
return false;
}
parameterType = weakActions[0].ParameterType;
return true;
}
readonly Dictionary<string, List<WeakAction>> _map = new Dictionary<string, List<WeakAction>>();
}
private class WeakAction
{
internal WeakAction(object target, MethodInfo method, Type parameterType)
{
if (target == null)
{
_targetRef = null;
}
else
{
_targetRef = new WeakReference(target);
}
_method = method;
this.ParameterType = parameterType;
if (parameterType == null)
{
_delegateType = typeof(Action);
}
else
{
_delegateType = typeof(Action<>).MakeGenericType(parameterType);
}
}
internal Delegate CreateAction()
{
// Rehydrate into a real Action object, so that the method can be invoked.
if (_targetRef == null)
{
return Delegate.CreateDelegate(_delegateType, _method);
}
else
{
try
{
object target = _targetRef.Target;
if (target != null)
return Delegate.CreateDelegate(_delegateType, target, _method);
}
catch
{
}
}
return null;
}
internal readonly Type ParameterType;
readonly Type _delegateType;
readonly MethodInfo _method;
readonly WeakReference _targetRef;
}
readonly MessageToActionsMap _messageToActionsMap = new MessageToActionsMap();
}
登录的所有方法类：
public class Login12306Manager
{
private static readonly Messenger s_messenger = new Messenger();
public static Messenger SMessenger { get { return s_messenger; } }
public const string APPEND_MESSAGE = \"append_message\";
public static string afterLoginCookie;
private static string beforLoginCookie;
static Login12306Manager()
{
SetCertificatePolicy();
}
/// <summary>
/// 登 录
/// </summary>
public static string Login(string userName,string password, string randomCode)
{
string resultHtml = string.Empty;
try
{
string loginRand= DoGetLoginRand();
HttpWebRequest request = (HttpWebRequest)WebRequest.Create
(@\"https://dynamic.12306.cn/otsweb/loginAction.do?method=login\");
request.Accept = @\"text/html, application/xhtml+xml, */*\";
request.UserAgent = @\"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)\";
request.Referer = @\"https://dynamic.12306.cn/otsweb/loginAction.do?method=init\";
request.ContentType = @\"application/x-www-form-urlencoded\";
request.Headers[HttpRequestHeader.Cookie] = beforLoginCookie;
request.Method = \"POST\";
byte[] buffer = new byte[0];
string parameter =
@\"loginRand={0}&refundLogin=N&refundFlag=Y&isClick=&form_tk=null&loginUser.user_name={1}&nameErrorFocus=&user.password={2}&passwordErrorFocus=&randCode={3}&randErrorFocus=&NDU0NzY4NA%3D%3D=Nzg4ZDAxMGNkYTZlMTRjZA%3D%3D&myversion=undefined\";
parameter = string.Format(parameter, loginRand, userName, password, randomCode);
buffer = Encoding.UTF8.GetBytes(parameter);
request.ContentLength = buffer.Length;
using (Stream writer = request.GetRequestStream())
{
writer.Write(buffer, 0, buffer.Length);
writer.Flush();
}
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
afterLoginCookie = response.GetResponseHeader(\"Set-cookie\");
using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8))
{
resultHtml = reader.ReadToEnd();
resultHtml = ProcessLoginResult(resultHtml);
}
}
}
catch{ }
return resultHtml;
}
/// <summary>
/// 刷新验证码
/// </summary>
public static string RefreshCode()
{
string randImageUrl = string.Empty;
try
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(string.Format(@\"https://dynamic.12306.cn/otsweb/passCodeNewAction.do?module=login&rand=sjrand&{0}\",
new Random().Next(10000, 1000000)));
request.Accept = @\"image/png, image/svg+xml, image/*;q=0.8, */*;q=0.5\";
request.UserAgent = @\"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)\";
request.Referer = @\"https://dynamic.12306.cn/otsweb/loginAction.do?method=init\";
request.Method = \"GET\";
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
beforLoginCookie = response.GetResponseHeader(\"Set-cookie\");
beforLoginCookie = Regex.Replace(beforLoginCookie, \"path(?:[^,]+),?\", \"\", RegexOptions.IgnoreCase);
using (Stream reader = response.GetResponseStream())
{
string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, new Random().Next(10000, 99999) + @\"loginRandCode.JPEG\");
using (FileStream file = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write))
{
reader.CopyTo(file);
}
randImageUrl = path;
}
}
}
catch { }
return randImageUrl;
}
private static string DoGetLoginRand()
{
string loginRand=string.Empty;
try
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(@\"https://dynamic.12306.cn/otsweb/loginAction.do?method=loginAysnSuggest\");
request.Accept = @\"application/json, text/javascript, */*\";
request.UserAgent = @\"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)\";
request.Referer = @\"https://dynamic.12306.cn/otsweb/loginAction.do?method=init\";
request.Headers[HttpRequestHeader.Cookie] = beforLoginCookie;
request.Method = \"POST\";
byte[] buffer = new byte[0];
buffer = Encoding.UTF8.GetBytes(string.Empty);
request.ContentLength = buffer.Length;
using (Stream writer = request.GetRequestStream())
{
writer.Write(buffer, 0, buffer.Length);
writer.Flush();
}
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8))
{
string result = reader.ReadToEnd();
var loginRandContent = JsonConvert.DeserializeObject<BeforLoginRnad>(result);
loginRand = loginRandContent.loginRand;
}
}
}
catch {}
return loginRand;
}
/// <summary>
/// 处理登录结果
/// </summary>
/// <param name=\"html\">登录后返回的html文本</param>
private static string ProcessLoginResult(string html)
{
string m_msgPattern = \"message[^\\\"]+\\\"(?\'message\'[^\\\"]+)\\\";\";
string m_isLoginPatter = \"isLogin\\\\s*=\\\\s*(?<val>.+)\\n\";
string m_loginUserNamePattern = \"u_name\\\\s*=\\\\s*[\'\\\"](?<name>.+)[\'\\\"]\";
if (html.Contains(\"请输入正确的验证码\"))
{
return \"验证码错误\";
}
else if (html.Contains(\"当前访问用户过多\"))
{
return \"当前访问用户过多,请稍后再试...\";
}
else
{
var match0 = Regex.Match(html, m_msgPattern, RegexOptions.Compiled);
if (match0.Success)
{
string text = match0.Groups[\"message\"].Value;
if (text.Contains(\"密码\") || text.Contains(\"登录名不存在\"))
{
return \"用户名或者密码错误\";
}
else
{
return text;
}
}
var match = Regex.Match(html, m_isLoginPatter, RegexOptions.Compiled);
if (match.Success && (match.Groups[\"val\"].Value.Trim().ToLower() == \"true\"))
{
match = Regex.Match(html, m_loginUserNamePattern, RegexOptions.Compiled);
if (match.Success)
{
string name = match.Groups[\"name\"].Value;
return \"登录成功:\" + name;
}
else
{
return \"登录失败,未知错误\";
}
}
else
{
return \"登录失败!!!\";
}
}
}
/// <summary>
/// Sets the cert policy.
/// </summary>
private static void SetCertificatePolicy()
{
ServicePointManager.ServerCertificateValidationCallback
+= RemoteCertificateValidate;
}
/// <summary>
/// Remotes the certificate validate.
/// </summary>
private static bool RemoteCertificateValidate(
object sender, X509Certificate cert,
X509Chain chain, SslPolicyErrors error)
{
SMessenger.NotifyColleagues(APPEND_MESSAGE, \"信任任何证书...\");
return true;
}
}
public class BeforLoginRnad
{
public string loginRand { get; set; }
public string randError { get; set; }
}
注意登录时，主要的正文是：
string parameter =
@\"loginRand={0}&refundLogin=N&refundFlag=Y&isClick=&form_tk=null&loginUser.user_name={1}&nameErrorFocus=&user.password={2}&passwordErrorFocus=&randCode={3}&randErrorFocus=&NDU0NzY4NA%3D%3D=Nzg4ZDAxMGNkYTZlMTRjZA%3D%3D&myversion=undefined\"，它有三个参数，登录时的随机码，用户名，密码和验证码组成。
调用如下：
前台wpf代码：
<Window x:Class=\"Test12306AutoLogin.MainWindow\"
xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\"
xmlns:x=\"http://schemas.microsoft.com/winfx/2006/xaml\"
Title=\"MainWindow\">
<StackPanel>
<Grid>
<Grid.Resources>
<Style TargetType=\"TextBlock\">
<Setter Property=\"FontFamily\" Value=\"Microsoft YaHei\"/>
<Setter Property=\"FontSize\" Value=\"20\"/>
<Setter Property=\"VerticalAlignment\" Value=\"Center\"/>
</Style>
<Style TargetType=\"TextBox\">
<Setter Property=\"FontSize\" Value=\"20\"/>
<Setter Property=\"MinWidth\" Value=\"300\"/>
<Setter Property=\"Height\" Value=\"50\"/>
<Setter Property=\"VerticalAlignment\" Value=\"Center\"/>
</Style>
<Style TargetType=\"PasswordBox\">
<Setter Property=\"FontSize\" Value=\"20\"/>
<Setter Property=\"MinWidth\" Value=\"300\"/>
<Setter Property=\"Height\" Value=\"50\"/>
<Setter Property=\"VerticalAlignment\" Value=\"Center\"/>
</Style>
</Grid.Resources>
<Grid.RowDefinitions>
<RowDefinition Height=\"auto\"/>
<RowDefinition Height=\"auto\"/>
<RowDefinition Height=\"auto\"/>
<RowDefinition Height=\"auto\"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width=\"auto\"/>
<ColumnDefinition Width=\"auto\"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Row=\"0\" Grid.Column=\"0\" Text=\"用户名：\"/>
<TextBox Grid.Row=\"0\" Grid.Column=\"1\" x:Name=\"txtUserName\"/>
<TextBlock Grid.Row=\"1\" Grid.Column=\"0\" Text=\"密 码：\"/>
<PasswordBox Grid.Row=\"1\" Grid.Column=\"1\" x:Name=\"txtPassword\"/>
<TextBlock Grid.Row=\"3\" Grid.Column=\"0\" Text=\"验证码\"/>
<StackPanel Grid.Row=\"3\" Grid.Column=\"1\" Orientation=\"Horizontal\"
VerticalAlignment=\"Center\">
<TextBox x:Name=\"txtRandCode\" Width=\"150\"/>
<Image x:Name=\"imageRandCode\" Width=\"70\"/>
<Button Content=\"刷新验证码\" Height=\"30\" Width=\"80\" Click=\"ButtonRefreshRandCode_Click\" />
</StackPanel>
</Grid>
<Button Content=\"登 录\" Width=\"150\" Height=\"50\" Click=\"ButtonLogin_Click\" />
<RichTextBox x:Name=\"rtxResultContent\" MinHeight=\"200\"/>
</StackPanel>
</Window>
后台代码：
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
this.Loaded += new RoutedEventHandler(MainWindow_Loaded);
}
void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
DoRefreshRandCode();
}
private void DoRefreshRandCode()
{
string imageRandUrl = Login12306Manager.RefreshCode();
if (File.Exists(imageRandUrl))
{
ImageSource src = (ImageSource)(new ImageSourceConverter().ConvertFromString(imageRandUrl));
this.imageRandCode.Source = src;
}
this.txtRandCode.Text = string.Empty;
}
/// <summary>
/// 登录
/// </summary>
/// <param name=\"sender\"></param>
/// <param name=\"e\"></param>
private void ButtonLogin_Click(object sender, RoutedEventArgs e)
{
string userName = this.txtUserName.Text;
string password = this.txtPassword.Password;
string randCode = this.txtRandCode.Text;
if (string.IsNullOrEmpty(userName) || string.IsNullOrEmpty(password) || string.IsNullOrEmpty(randCode))
{
MessageBox.Show(\"请填写完整信息\");
return;
}
string html = Login12306Manager.Login(userName, password, randCode);
System.Windows.Documents.FlowDocument doc = this.rtxResultContent.Document;
doc.Blocks.Clear();
this.rtxResultContent.AppendText(html);
}
/// <summary>
/// 刷新验证码
/// </summary>
/// <param name=\"sender\"></param>
/// <param name=\"e\"></param>
private void ButtonRefreshRandCode_Click(object sender, RoutedEventArgs e)
{
DoRefreshRandCode();
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助。
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