从代码参数获取Facebook OAuth令牌

Question

我构建了一个FB应用程序,它执行以下操作:

1)将初始请求重定向到FB,以便进行身份验证/登录,如下所示:

https://www.facebook.com/dialog/oauth?client_id=MYAPPID&redirect_uri=http://localhost:8080/FB/servlet&scope=read_stream&response_type=code

2)在servlet中,获取"code"参数(这是signed_request？):

 String signedReq = request.getParameter("code");

// the String retrieved from the code parameter is:
// 3DaDJXq1Mlsq67GbeudlUxu7bY5Um4hSJlwzoPCHhp4.eyJpdiI6Ikc1ODNuRjZXbnhCb0hUV1FEMVNTQUEifQ._iXKxSGiNHfc-i5fRO35ny6hZ03DcLwu4bpAkslqoZk6OfxW5Uo36HwhUH2Gwm2byPh5rVp2kKCNS6EoPEZJzsqdhZ_MhuUD8WGky1dx5J-qNOUqQK9uNM4HG4ziSgFaAV8mzMGeUeRo8KSL0tcKuq

3)如何从此String获取OAuth令牌？

提前致谢!中号

Answer 1

在facebook文档上,它告诉你将它发送回facebook:

http://developers.facebook.com/docs/authentication/

基本上你这样做:

   https://graph.facebook.com/oauth/access_token?
   client_id=YOUR_APP_ID&redirect_uri=YOUR_URL&
   client_secret=YOUR_APP_SECRET&code=THE_CODE_FROM_ABOVE

这应该适合你.