java实现  微博登录、微信登录、qq登录实现代码

 public void wx() {
 try {
  response.sendRedirect("https://open.weixin.qq.com/connect/qrconnect?appid="
   + ShareLoginDict.WEIXINKEY.getState()
   + "&redirect_uri="
   + URLEncoder.encode(ShareLoginDict.WEIXINURL.getState()) 
   + "&response_type=code&scope=snsapi_login&state=66666#wechat_redirect");
 } catch (IOException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
 }
 }

@Override
 public Result userwx(String return_code) {
 Result result = new Result();
 Map<String, Object> token = (Map<String, Object>) WeiXinAPI
  .getToken(return_code);
 if (token != null && token.get("access_token") != null) {
  Map<String, Object> user = (Map<String, Object>) WeiXinAPI
   .getWxUser(token.get("access_token").toString(),
    token.get("openid").toString());
  if (user != null) {
  result.addModel("openid", user.get("openid"));
  result.addModel("nickname", user.get("nickname"));
  result.addModel("headimgurl", user.get("headimgurl"));
  result.addModel("data", "data_success");
  }else{
  result.addModel("data", "data_null");
  }
 }else{
  result.addModel("data", "data_null");
 }
 return result;
 }

public void qq() {
 try {
  response.sendRedirect("https://graph.qq.com/oauth2.0/authorize?response_type=code&client_id="
   + ShareLoginDict.QQKEY.getState()
   + "&redirect_uri="
   + ShareLoginDict.QQURL.getState() + "&scope=get_user_info");
 } catch (IOException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
 }
 }

@Override
 public Result userqq(String return_code) {
 Result result = new Result();
 Map<String, Object> token = (Map<String, Object>) QQAPI
  .getToken(return_code);
 if (token != null && token.get("access_token") != null) {
  Map<String, Object> tokenme = (Map<String, Object>) QQAPI
   .getTokenMeOpenId(token.get("access_token").toString());
  if (tokenme != null && tokenme.get("openid") != null) {
  Map<String, Object> user = (Map<String, Object>) QQAPI
   .getQqUser(token.get("access_token").toString(),
    tokenme.get("openid").toString());
  if (user != null) {
   result.addModel("openid", tokenme.get("openid"));
   result.addModel("nickname", user.get("nickname"));
   result.addModel("figureurl", user.get("figureurl"));
   result.addModel("data", "data_success");
  }else{
   result.addModel("data", "data_null");
  }
  }else{
  result.addModel("data", "data_null");
  }

 }else{
  result.addModel("data", "data_null");
 }
 return result;
 } 

public void wb() {
 try {
  response.sendRedirect("https://api.weibo.com/oauth2/authorize?client_id="
   + ShareLoginDict.WEIBOKEY.getState()
   + "&redirect_uri="
   + ShareLoginDict.WEIBOURL.getState()
   + "&response_type=code");
 } catch (IOException e) {
  // TODO Auto-generated catch block
  e.printStackTrace();
 }
 }

@Override
 public Result userwb(String return_url, String return_code) {
 Result result = new Result();
 Map<String, Object> token = (Map<String, Object>) WeiBoAPI.getToken(
  return_url, return_code);
 if (token != null && token.get("access_token") != null) {
  Map<String, Object> user = (Map<String, Object>) WeiBoAPI
   .getWbUser(token.get("access_token").toString(),
    token.get("uid").toString());
  if (user != null) {
  result.addModel("name", user.get("screen_name"));
  result.addModel("pic", user.get("avatar_large"));
  result.addModel("idstr", user.get("idstr"));
  result.addModel("data", "data_success");
  }else{
  result.addModel("data", "data_null");
  }
 }else{
  result.addModel("data", "data_null");
 }
 return result;
 }