/**
  * function description
  *
  * @param
  * @return void
  */
 public function execute($request)
 {
     if ($request->format == 'json') {
         $id = $request->id;
         if (!is_numeric($id)) {
             return array('status' => '-1', 'msg' => '参数错误');
         }
         $letter = Sp_Letter_Letter::getLetterById($id);
         if (is_array($letter) && count($letter) > 0) {
             $letter['pageConfig'] = json_decode($letter['pageConfig'], TRUE);
             $letter['pageItem'] = json_decode($letter['pageItem'], TRUE);
         }
         if (!empty($letter)) {
             $active = Sp_Active_Active::getActiveById($letter['active_id']);
             if (empty($active)) {
                 return array('status' => '-1', 'msg' => '数据有误');
             }
         }
         return array('status' => '0', 'msg' => '获取成功', 'data' => $letter);
     } else {
         $jssdk = new Util_Jssdk("wx91f7f41fce0885bc", "YjlcfXNkdBYjlcfXNkdBYjlcfXNkdBYj");
         $signPackage = $jssdk->GetSignPackage();
         $id = $request->id;
         $id = base64_decode($id);
         $cry = new Util_Crypt3Des();
         $id = $cry->decrypt($id);
         if (!is_numeric($id)) {
             $this->show404();
         }
         $letter = Sp_Letter_Letter::getLetterById($id);
         if (empty($letter)) {
             $this->show404();
         }
         $active = Sp_Active_Active::getActiveById($letter['active_id']);
         if (empty($active)) {
             $this->show404();
         }
         $view = new Sp_View();
         $view->assign("letter", $letter);
         $view->assign('active', $active);
         $view->assign('signPackage', $signPackage);
         $view->display("letter/show.html");
     }
 }
 /**
  * 合并存储的值为一个关联数组
  *
  * @param string $str
  * @param array $keys
  * @param string $glue
  * @return array
  */
 public static function parseStored($str)
 {
     //解密3des
     $cry = new Util_Crypt3Des();
     $str = $cry->decrypt($str);
     $data = explode(',', $str);
     $user['id'] = $data[0];
     $user['login'] = $data[1];
     if (isset($data[2])) {
         $user['mobile'] = $data[2];
     }
     if (isset($data[3])) {
         $user['email'] = $data[3];
     }
     return $user;
 }