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copied!<p>Here is servlet solution I use. With little tweaking you can meke it work in any JSP with simple username-password form. No javascript needed!!! As far as address and phone number go read this: <a href="http://developers.facebook.com/blog/post/447" rel="noreferrer">http://developers.facebook.com/blog/post/447</a></p> <h1>FBAuthServlet</h1> <pre><code>public class FBAuthServlet extends HttpServlet { private static final Logger log = Logger.getLogger(FBAuthServlet.class); private static final long serialVersionUID = 1L; private UserService userService = //here goes your user service implementation public FBAuthServlet() { super(); } public void destroy() { super.destroy(); // Just puts "destroy" string in log // Put your code here } public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { HttpServletRequest req = (HttpServletRequest) request; HttpServletResponse res = (HttpServletResponse) response; if ("y".equals(request.getParameter("FacebookLogin"))) { response.sendRedirect(FaceBookConfig.getLoginRedirectURL()); return; } String code = req.getParameter("code"); if (StringUtil.isNotBlankStr(code)) { String authURL = FaceBookConfig.getAuthURL(code); URL url = new URL(authURL); try { String result = readURL(url); String accessToken = null; Integer expires = null; String[] pairs = result.split("&"); for (String pair : pairs) { String[] kv = pair.split("="); if (kv.length != 2) { res.sendRedirect(FaceBookConfig.MAINURL); } else { if (kv[0].equals("access_token")) { accessToken = kv[1]; } if (kv[0].equals("expires")) { expires = Integer.valueOf(kv[1]); } } } if (accessToken != null && expires != null) { User user = authFacebookLogin(accessToken, request.getRemoteAddr()); if (user != null && user.getFacebookId() != null) { //forward to spring security filter chain res.sendRedirect(FaceBookConfig.MAINURL + "/j_spring_security_check?j_username=" + user.getEmail() + "&FaceBookId=" + user.getFacebookId()); } else if (user != null && StringUtil.isNullOrBlank(user.getFacebookId())) { res.sendRedirect(FaceBookConfig.MAINURL + "/login.html?login_error=You are not Registered By Facebook Connect"); } else { res.sendRedirect(FaceBookConfig.MAINURL); } } } catch (Exception e) { e.printStackTrace(); res.sendRedirect(FaceBookConfig.MAINURL); } } } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } public void init() throws ServletException { } private String readURL(URL url) throws IOException { ByteArrayOutputStream baos = new ByteArrayOutputStream(); InputStream is = url.openStream(); int r; while ((r = is.read()) != -1) { baos.write(r); } return new String(baos.toByteArray()); } private User authFacebookLogin(String accessToken, String ip) { try { String content = IOUtil.urlToString(new URL("https://graph.facebook.com/me?access_token=" + accessToken)); JSONObject resp = new JSONObject(content); String facebookid = resp.getString("id"); String firstName = resp.getString("first_name"); String lastName = resp.getString("last_name"); String email = resp.getString("email"); log.info("Facebook response: " + content); CreateUserRequestCommand comm = new CreateUserRequestCommand(); comm.setEmail(email); comm.setFacebookId(facebookid); comm.setFirst(StringAndDateUtils.safeChar(firstName)); comm.setLast(StringAndDateUtils.safeChar(lastName)); //if success login if (userService.getUserByEmail(email) == null) { //if first time login User u = userService.createUser(comm, ip); return u; } else {//if existed User existedUser = userService.getUserByEmail(email); return existedUser; } } catch (Throwable ex) { ex.printStackTrace(); } return null; } } </code></pre> <h1>FBEnableServlet</h1> <pre><code>public class FBEnableServlet extends HttpServlet { private static final long serialVersionUID = 1L; private UserService userService = (UserService) ServiceLocator.getContext().getBean("userService"); public FBEnableServlet() { super(); } public void destroy() { super.destroy(); // Just puts "destroy" string in log // Put your code here } public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { HttpServletRequest req = (HttpServletRequest) request; HttpServletResponse res = (HttpServletResponse) response; if ("y".equals(request.getParameter("EnableFacebookConnect"))) { response.sendRedirect(FaceBookConfig.getEnableRedirectURL()); return; } String code = req.getParameter("code"); if (StringUtil.isNotBlankStr(code)) { String authURL = FaceBookConfig.getEnableAuthURL(code); URL url = new URL(authURL); try { String result = readURL(url); String accessToken = null; Integer expires = null; String[] pairs = result.split("&"); for (String pair : pairs) { String[] kv = pair.split("="); if (kv.length != 2) { res.sendRedirect(FaceBookConfig.MAINURL); } else { if (kv[0].equals("access_token")) { accessToken = kv[1]; } if (kv[0].equals("expires")) { expires = Integer.valueOf(kv[1]); } } } if (accessToken != null && expires != null) { User user = authFacebookLogin(accessToken, request.getRemoteAddr()); String loginedEmail = ""; try { loginedEmail = SecurityContextHolder.getContext().getAuthentication().getName(); } catch (Exception ex) { } System.out.println("Logined email = " + loginedEmail); System.out.println("Facebook Login email = " + user.getEmail()); if (user != null && user.getFacebookId() != null && user.getEmail().equals(loginedEmail)) { userService.setFaceBookid(user.getFacebookId()); //forward to spring security filter chain res.sendRedirect(FaceBookConfig.MAINURL + "/j_spring_security_check?j_username=" + user.getEmail() + "&FaceBookId=" + user.getFacebookId()); } else { res.sendRedirect(FaceBookConfig.MAINURL + "/secure/myAccount.html?message=Please login Facebook with same Email,you Login with " + user.getEmail()); } } } catch (Exception e) { e.printStackTrace(); res.sendRedirect(FaceBookConfig.MAINURL); } } } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); } public void init() throws ServletException { } private String readURL(URL url) throws IOException { ByteArrayOutputStream baos = new ByteArrayOutputStream(); InputStream is = url.openStream(); int r; while ((r = is.read()) != -1) { baos.write(r); } return new String(baos.toByteArray()); } private User authFacebookLogin(String accessToken, String ip) { try { String content = IOUtil.urlToString(new URL("https://graph.facebook.com/me?access_token=" + accessToken)); JSONObject resp = new JSONObject(content); String facebookid = resp.getString("id"); String email = resp.getString("email"); User existedUser = userService.getUserByEmail(email); if (existedUser == null) { return null; } else { existedUser.setFacebookId(facebookid); return existedUser; } } catch (Throwable ex) { ex.printStackTrace(); } return null; } } </code></pre>

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