用其他帐号（比如QQ msn）登录自己的网站，需要怎么做呀？？
假如blogger是个微博网站，有人没有注册blogger网站，但是他可以用QQ，msn或是其他的帐号登录，这个需要怎么做呀，好像有 第三方授权的问题
请大家给个思路，还有数据库的建立，不太明白这个授权的问题，迷惑中……
希望做过 有经验的前辈们 指点指点
谢谢……
回复讨论(解决方案)
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帮帮忙吧，大概说一下思路就好了
那需要他们 官方本身 提供 接口
一般我是这样理解。 通过 提供的接口登录（ 登录窗口不在你的站 而是在他本身的连接地址 ,不然的话一下就被人偷光用户资料了 ）
通过接口得到登录的信息 储存到 COOKIE 包括 登录状态 USER 等等 .
然后你 把他 反馈给你信息 做出相对处理 就好了。 最主要的操作 只需要3点。
1，判断 账号是否登录（接口都有提供这种判断函数）
2，提供1个 注册信息窗口 。（自动填入 他 登录的账号，然后下边是本站 注册需要的信息，这样就可以留住1个用户了）
3，提供1个 接口功能体现的操作页面（例如新浪微博登录接口 那你就要把他发布的信息 用 接口内置函数 直接发送到他的微博上去）
到他们网站找到借口，一般都返回一些数据，比如QQ一般就返回QQ空间的头像、QQ昵称，然后你可以把这些存到你自己的数据库中，密码你就按照一定规律写个，这个每次他们点击QQ登录授权后你写入相应的cookie或session值就OK了，，，比如腾讯的开发平台http://open.qq.com/
不同网站有不同的协议要求，所以根据网站给出的开发文档进行相应开发.
那要看人家公布的api了
腾讯开放平台，你到那里去看看，一看就能看懂了！接入MSN登陆这就不太清楚了！
真的很不错，谢谢楼主
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