问题是这样的，我有一个程序（假设单个页面），这个程序被运行的时候，我不想让多个浏览器能同时运行，因为SESSION，COOKIE这样的会因为浏览器内核不同而导致验证不一样，就会出现可能同一时间，开3个不同内核的浏览器就能同时模拟3个用户运行该程序。
如何验证才能保证在同一时间，一台电脑一个用户只能运行一个该程序，而不会受到浏览器的影响。
就比如网页游戏的登录，同一浏览器不能同时登录多个账号，但是开3个不同浏览器就能同时登录3个账号。
如何验证才能防止这种“多开”的情况？
回复讨论(解决方案)
这个可以写进内存或数据库判断用户是否已经登录，然后每次登录前再去判断登录状态，这样不就解决了躲开的情况吗？不知鄙人说的是否这个意思
可以写入数据库进行判断。
mac+ ip 验证怎么样？
这个可以写进内存或数据库判断用户是否已经登录，然后每次登录前再去判断登录状态，这样不就解决了躲开的情况吗？不知鄙人说的是否这个意思
这个确实可以防止同一用户的“多开”情况，但是我想要的是只能有一个用户登录，也就是，即便是3个不同的用户名也不行
mac+ ip 验证怎么样？
这个也许可行，不过实际中有这样的项目吗？
http://www.baidu.com/baidu?word=js%E8%8E%B7%E5%8F%96mac%E5%9C%B0%E5%9D%80&ie=utf-8
http://www.baidu.com/baidu?word=js%E8%8E%B7%E5%8F%96mac%E5%9C%B0%E5%9D%80&ie=utf-8
惭愧，谢谢版主老大
有帐号就好办了，后一个登录杀掉前一个，记录最新一个session id就行
有帐号就好办了，后一个登录杀掉前一个，记录最新一个session id就行
那我怎么知道哪个账号对应着哪一个账号呢，我只是防止一个用户多个账号同时登录，而不是这个程序只能一个用户而且一个账号登录
http://www.baidu.com/baidu?word=js%E8%8E%B7%E5%8F%96mac%E5%9C%B0%E5%9D%80&ie=utf-8
版主老大，貌似这个需要用户点击信任允许才行啊，有没有直接可以做到的
获取用户信息，当然是要用户允许的。不然你也打算制造仪的“棱镜”事件？
有帐号就好办了，后一个登录杀掉前一个，记录最新一个session id就行
那我怎么知道哪个账号对应着哪一个账号呢，我只是防止一个用户多个账号同时登录，而不是这个程序只能一个用户而且一个账号登录
很晕，怎么会不知道呢？登录时不判断不记录帐号的么？难道就一个True/False？
我得提醒一下: mac地址是可以伪造的...
有帐号就好办了，后一个登录杀掉前一个，记录最新一个session id就行
那我怎么知道哪个账号对应着哪一个账号呢，我只是防止一个用户多个账号同时登录，而不是这个程序只能一个用户而且一个账号登录
很晕，怎么会不知道呢？登录时不判断不记录帐号的么？难道就一个True/False？
我的目的是想防止“一个用户多开”的情况，所以我要确定的是，这个用户只能同时使用一个账号，如果他注册了三个账号，用三个不同浏览器登陆，那么服务器针对每个账号来看确实没问题，但是这三个账号都是同一个用户同一时间登陆的，我现在要确定这个用户只能使用其中一个
获取用户信息，当然是要用户允许的。不然你也打算制造仪的“棱镜”事件？
那有没有能用户本身就提供，又可以确定唯一性的信息呢
我得提醒一下: mac地址是可以伪造的...
妞妞，那有没有什么办法能确定到唯一用户呢
你账号哪里做一个验证就行了,SESSION是每访问一次有一个唯一ID的,换浏览器就肯定换新的了
你账号哪里做一个验证就行了,SESSION是每访问一次有一个唯一ID的,换浏览器就肯定换新的了
我现在是要想办法确定用户唯一，不是账号唯一，换了新SESSION那我还怎么确定他之前是不是登录过了
我得提醒一下: mac地址是可以伪造的...
妞妞，那有没有什么办法能确定到唯一用户呢
除非你抛弃所有的浏览器做为客户端，自己开发一个专门的客户端用来访问，否则是没有办法的。
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