update

app/middleware/LoadConfig.php

@@ -0,0 +1,39 @@
+<?php
+declare (strict_types = 1);
+
+namespace app\middleware;
+
+use think\facade\Db;
+use think\facade\Config;
+
+class LoadConfig
+{
+    /**
+     * 处理请求
+     *
+     * @param \think\Request $request
+     * @param \Closure       $next
+     * @return Response
+     */
+    public function handle($request, \Closure $next)
+    {
+        if (!file_exists(app()->getRootPath().'.env')){
+            if(strpos(request()->url(),'/installapp')===false){
+                return redirect((string)url('/installapp'))->header([
+                    'Cache-Control' => 'no-store, no-cache, must-revalidate',
+                    'Pragma' => 'no-cache',
+                ]);
+            }else{
+                return $next($request);
+            }
+        }
+
+        $res = Db::name('config')->cache('configs',0)->column('value','key');
+        Config::set($res, 'sys');
+
+        return $next($request)->header([
+            'Cache-Control' => 'no-store, no-cache, must-revalidate',
+            'Pragma' => 'no-cache',
+        ]);
+    }
+}