如何将facebook与java桌面应用程序连接起来

Question

我需要从java桌面应用程序连接和验证用户,我已经尝试使用facebookjsonclient和facebookRestclient的facebook-java-api但无法获取会话密钥.Facebook是否有任何变化,因为我们无法连接,或者是否有其他最好的java api或示例如何连接.我的代码是

private static void getUserID(String email, String password){
        String session = null;
        try {

            HttpClient http = new HttpClient();

            http.getHostConfiguration().setHost("www.facebook.com");
            String api_key = "key";
            String secret = "sec";
            FacebookJaxbRestClient client = new FacebookJaxbRestClient(api_key, secret);
                System.out.println("====>"+client.isDesktop());

            String token = client.auth_createToken();
            System.out.println(" :::::::"+token);
            System.out.println(" :::::::::: "+token);
            PostMethod post = new PostMethod("/login.php?");

            post.addParameter("api_key", api_key);


            post.addParameter("email", email);
            post.addParameter("pass", password);


            int postStatus = http.executeMethod(post);
                System.out.println("url : " + post.getURI());
            System.out.println("Response : " + postStatus);
            for (Header h : post.getResponseHeaders()) {
                System.out.println(h);
            }
            session = client.auth_getSession(token); // Here I am getting error
            System.out.println("Session string: " + session);
            long userid = client.users_getLoggedInUser();
            //System.out.println("User Id is : " + userid);*/
        } catch (FacebookException fe) {

            fe.printStackTrace();

        }catch(Exception e){
            e.printStackTrace();
        }
    }

Answer 1

首先，您需要获取access_token，然后我建议使用restfb库。为了获得令牌，我建议阅读以下内容：https://developers.facebook.com/docs/authentication/

简单总结一下：

1. HTTP GET： https: //www.facebook.com/dialog/oauth？client_id = YOUR_APP_ID＆redirect_uri = YOUR_URL＆scope =电子邮件，read_stream＆response_type =令牌
2. 使用从上面获得的代码，然后执行： 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
3. 精确获取 access_token 并使用FacebookClient来自restfb 的API 发出请求。