这是我使用的servlet解决方案。只需稍作调整，您就可以使用简单的用户名-密码格式在任何JSP中使用它。无需Javascript
！！！至于地址和电话号码，请阅读以下内容：http :
//developers.facebook.com/blog/post/447
FBAuthServlet
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 implementationpublic FBAuthServlet() { super();}public void destroy() { super.destroy(); // Just puts "destroy" string in log // Put your pre 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 pre = req.getParameter("pre"); if (StringUtil.isNotBlankStr(pre)) { String authURL = FaceBookConfig.getAuthURL(pre); 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;}}FBEnableServlet
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 pre 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 pre = req.getParameter("pre"); if (StringUtil.isNotBlankStr(pre)) { String authURL = FaceBookConfig.getEnableAuthURL(pre); 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;}}
