diff --git a/plugins/Common.php b/plugins/Common.php
index f7d88b3..44643de 100644
--- a/plugins/Common.php
+++ b/plugins/Common.php
@@ -53,17 +53,22 @@ Class Common {
         return true;
     }
 
-    //判断用户数据目录是否存在
-    public static function getUserDataDir($cellphone) {
-        $rootDir = __DIR__ . '/../www/' . FSC::$app['config']['content_directory'];
-
+    //根据手机号码获取映射的用户名
+    public static function getMappedUsername($cellphone){
         $username = $cellphone;
-        
-        //账号映射，手机号码转换成4位数字的短账号
+
         if (!empty(FSC::$app['config']['tajia_user_map']) && !empty(FSC::$app['config']['tajia_user_map'][$username])) {
             $username = FSC::$app['config']['tajia_user_map'][$username];
         }
 
+        return $username;
+    }
+
+    //判断用户数据目录是否存在
+    public static function getUserDataDir($cellphone) {
+        $rootDir = __DIR__ . '/../www/' . FSC::$app['config']['content_directory'];
+
+        $username = self::getMappedUsername($cellphone);
         $userDir = "{$rootDir}{$username}";
         return is_dir($userDir) ? $userDir : false;
     }
@@ -90,17 +95,12 @@ Class Common {
         }
 
         $login_time = time();
-        $username = $cellphone;
+        $username = self::getMappedUsername($cellphone);
 
         if (empty($friends_code) && !empty($_COOKIE['friends_code'])) {
             $friends_code = $_COOKIE['friends_code'];
         }
 
-        //账号映射，手机号码转换成4位数字的短账号
-        if (!empty(FSC::$app['config']['tajia_user_map']) && !empty(FSC::$app['config']['tajia_user_map'][$username])) {
-            $username = FSC::$app['config']['tajia_user_map'][$username];
-        }
-
         $_SESSION['login_time'] = $login_time;
         $_SESSION['username'] = $username;
         $_SESSION['friends_code'] = $friends_code;
diff --git a/themes/tajian/controller/FrontapiController.php b/themes/tajian/controller/FrontapiController.php
index bb3579b..9d4f2f6 100644
--- a/themes/tajian/controller/FrontapiController.php
+++ b/themes/tajian/controller/FrontapiController.php
@@ -485,6 +485,15 @@ eof;
             if (empty($cellphone) || Common::isCellphoneNumber($cellphone) == false) {
                 $err = "手机号码格式错误，请填写正确的手机号码";
             }else {
+                //判断是否已经注册
+                $userDataDir = Common::getUserDataDir($cellphone);
+                if (!empty($userDataDir) && $action == 'register') {
+                    $err = '你已经注册，请直接登录';
+                    return $this->renderJson(compact('code', 'msg', 'err'));
+                }
+
+
+                //尝试发送短信验证码
                 $params = array(
                     'phoneNumber' => $cellphone,
                     'codeNumber' => $this->generateRandSmsCode(),
@@ -565,14 +574,15 @@ eof;
                         Common::saveFriendsCode($cellphone);
                         Common::initUserData($cellphone, $friends_code);
 
-                        $shareUrl = "/{$cellphone}/";
+                        $shareUrl = "/{$newUser['username']}/";
                         $msg = "注册完成，开始收藏你喜欢的视频吧，正在为你跳转到专属网址...";
                         $code = 1;
                     }else {
                         $err = '注册失败，请稍后再试';
                     }
                 }else {
-                    $shareUrl = "/{$cellphone}/";
+                    $username = Common::getMappedUsername($cellphone);
+                    $shareUrl = "/{$username}/";
                     $msg = "已注册，正在为你跳转到专属网址...";
                     $code = 1;
                 }