add server

manage-server/app/Http/Controllers/CommonController.php

         return $record;
     }
 
-    public function server_json($Request request) {
+    public function server_json(Request $request) {
         $disk = Storage::disk('public');
         $json_string = $disk->get("server.json");
         // 用参数true把JSON字符串强制转成PHP数组