调整基站登录

application/admin/controller/SingleSign.php

@@ -86,7 +86,7 @@ class SingleSign {
     public function saveKey($key,$user=[]){
         $encryptKey = substr(md5(config('admin.encrypt_key').$key),0,10);
         //存储到redis
-        if($this->instence->get($encryptKey) != ''){
+        if(!$this->instence->get($encryptKey)){
             $this->instence->set($encryptKey,json_encode($user),1800);
         }
     }