first commit

app/middleware/CheckLogin.php

@@ -0,0 +1,23 @@
+<?php
+declare (strict_types = 1);
+
+namespace app\middleware;
+use think\facade\Session;
+class CheckLogin
+{
+    /**
+     * 处理请求
+     *
+     * @param \think\Request $request
+     * @param \Closure       $next
+     * @return Response
+     */
+    public function handle($request, \Closure $next)
+    {
+        if (!Session::has('user_info')) {
+            return json(['code' => 401, 'message' => '未登录']);
+        }
+
+        return $next($request);
+    }
+}