简单实用的铁道部12306.cn网站自动化登录( 更新版 )

更新说明

修正了之前没有问题的代码现在却出现脚本异常问题

http://www.cnblogs.com/cnshangsha/archive/2012/01/12/12306cnautologin.html
新代码如下：

var page = "https://dynamic.12306.cn/otsweb/loginAction.do?method=init";
var url = "https://dynamic.12306.cn/otsweb/loginAction.do?method=login";
var queryurl = "https://dynamic.12306.cn/otsweb/order/querySingleAction.do?method=init";
 
function submitForm() {
    var _ifrMain = document.getElementById('main');
    var userName = _ifrMain.contentWindow.document.getElementById('UserName');
    var password = _ifrMain.contentWindow.document.getElementById('password');
    var randCode = _ifrMain.contentWindow.document.getElementById('randCode');
 
    var submitUrl = url;
    $.ajax({
        type: "POST",
        url: submitUrl,
        data: {
            "loginUser.user_name": userName.value
          , "user.password": password.value
          , "randCode": randCode.value
        },
        timeout: 30000,
        success: function (msg) {
            if (msg.indexOf('请输入正确的验证码') > -1) {
                alert('请输入正确的验证码！');
            };
            if (msg.indexOf('当前访问用户过多') > -1) {
                reLogin('回调结果:当前访问用户过多');
            }
            else {
                location.replace(queryurl);
            };
        },
        error: function (msg) {
            reLogin('回调结果:错误');
        },
        beforeSend: function (XHR) {
           ;
        }
    });
}
 
var count = 1;
function reLogin(msg) {
    count++;
    skm_LockScreen("(" + count + ")次登录中..." + msg);
    setTimeout(submitForm, 500);
}
 
function skm_LockScreen(str) {
    scroll(0, 0);
    var back = document.getElementById('skm_LockBackground');
    var pane = document.getElementById('skm_LockPane');
    var text = document.getElementById('skm_LockPaneText');
 
    var LockBackgroundCssString = "position: absolute;top: 0px;left: 0px;visibility: visible;display: block;width: 105%;height: 105%;background-color: #666;z-index: 999;filter: alpha(opacity=75);opacity:0.75;padding-top: 20%;";
 
    var LockPaneCssString = "z-index: 1000;position: absolute;top: 0px;left: 0px;padding-top: 25%;visibility: visible;display: block;text-align: center;width: 100%;";
 
    var textCssString = "width: 55%;background-color: #969;color: White;font-size: large;border: dotted 1px White;padding: 9px;margin-left: auto;margin-right: auto;";
     
    if (back)
        back.style.cssText = LockBackgroundCssString; 
    if (pane)
        pane.style.cssText = LockPaneCssString; 
    if (text) {
        text.innerHTML = str;
        text.style.cssText = textCssString; 
    }
}
 
var loginoutElement = document.getElementById('login_out');
loginoutElement.innerHTML = "<div id='skm_LockBackground' style='display: none;visibility: hidden;position: absolute;top: -100px;left: -100px;'></div><div id='skm_LockPane' style='display: none;visibility: hidden;position: absolute;top: -100px;left: -100px;'><div id='skm_LockPaneText'> </div></div>"; 
 
submitForm();

增加了友好的锁屏信息
多进程登录
代码测试能目前还是能正常登录的，请网友放心使用
Bug
- 目前代码自动登录的频率是一秒两次，有一次在登录次数达到3百多次的时候，网页出现了拒绝访问的错误，难道铁道部的后台程序判断了当前用户请求次数频繁, 把请求列入了黑名单？

铁道部网站登录难点分析

必须使用微软IE浏览器
- 铁道部网站只支持IE在线付款
网站使用Https协议
- 客户端不允许跨域访问

技术解析

使用微软IE开发者工具栏即可破解自动化登录过程

开始步骤

使用IE8及其以上的版本，IE7及以下版本需要另外下载微软官方的IE开发者工具栏，下载链接如下：
- Internet Explorer Developer Toolbar: http://www.microsoft.com/download/en/details.aspx?id=18359
在IE地址栏中访问铁道部登录页面 https://dynamic.12306.cn/otsweb/loginAction.do?method=init
需要且只需要输入一次自己的用户名，密码，验证码即可

按F12快捷键调出IE开发者工具栏 >>> Script（脚本）选项卡 >>> 复制如下图代码到内容文本框中 >>> 点击 Run Script（运行脚本）按钮

var page = "https://dynamic.12306.cn/otsweb/loginAction.do?method=init";
var url = "https://dynamic.12306.cn/otsweb/loginAction.do?method=login";
var queryurl = "https://dynamic.12306.cn/otsweb/order/querySingleAction.do?method=init";
 
function submitForm() {
    var _ifrMain = document.getElementById('main');
    var userName = _ifrMain.contentWindow.document.getElementById('UserName');
    var password = _ifrMain.contentWindow.document.getElementById('password');
    var randCode = _ifrMain.contentWindow.document.getElementById('randCode');
 
    var submitUrl = url;
    $.ajax({
        type: "POST",
        url: submitUrl,
        data: {
            "loginUser.user_name": userName.value
          , "user.password": password.value
          , "randCode": randCode.value
        },
        timeout: 30000,
        success: function (msg) {
            if (msg.indexOf('请输入正确的验证码') > -1) {
                alert('请输入正确的验证码！');
            };
            if (msg.indexOf('当前访问用户过多') > -1) {
                reLogin('回调结果:当前访问用户过多');
            }
            else {
                location.replace(queryurl);
            };
        },
        error: function (msg) {
            reLogin('回调结果:错误');
        },
        beforeSend: function (XHR) {
           ;
        }
    });
}
 
var count = 1;
function reLogin(msg) {
    count++;
    skm_LockScreen("(" + count + ")次登录中..." + msg);
    setTimeout(submitForm, 500);
}
 
function skm_LockScreen(str) {
    scroll(0, 0);
    var back = document.getElementById('skm_LockBackground');
    var pane = document.getElementById('skm_LockPane');
    var text = document.getElementById('skm_LockPaneText');
 
    var LockBackgroundCssString = "position: absolute;top: 0px;left: 0px;visibility: visible;display: block;width: 105%;height: 105%;background-color: #666;z-index: 999;filter: alpha(opacity=75);opacity:0.75;padding-top: 20%;";
 
    var LockPaneCssString = "z-index: 1000;position: absolute;top: 0px;left: 0px;padding-top: 25%;visibility: visible;display: block;text-align: center;width: 100%;";
 
    var textCssString = "width: 55%;background-color: #969;color: White;font-size: large;border: dotted 1px White;padding: 9px;margin-left: auto;margin-right: auto;";
     
    if (back)
        back.style.cssText = LockBackgroundCssString; 
    if (pane)
        pane.style.cssText = LockPaneCssString; 
    if (text) {
        text.innerHTML = str;
        text.style.cssText = textCssString; 
    }
}
 
var loginoutElement = document.getElementById('login_out');
loginoutElement.innerHTML = "<div id='skm_LockBackground' style='display: none;visibility: hidden;position: absolute;top: -100px;left: -100px;'></div><div id='skm_LockPane' style='display: none;visibility: hidden;position: absolute;top: -100px;left: -100px;'><div id='skm_LockPaneText'> </div></div>"; 
 
submitForm();