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app/admin/controller/Ajax.php

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+<?php
+declare (strict_types = 1);
+// +----------------------------------------------------------------------
+// | swiftAdmin 极速开发框架 [基于WebMan开发]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2020-2030 http://www.swiftadmin.net
+// +----------------------------------------------------------------------
+// | swiftAdmin.net High Speed Development Framework
+// +----------------------------------------------------------------------
+// | Author: meystack <coolsec@foxmail.com> Apache 2.0 License
+// +----------------------------------------------------------------------
+namespace app\admin\controller;
+
+use app\AdminController;
+use app\common\library\ResultCode;
+use app\common\library\Upload;
+
+/**
+ * Ajax类
+ * Class Ajax
+ * @package app\admin\controller
+ */
+class Ajax extends AdminController
+{
+    /**
+     * 测试接口
+     * @return \support\Response
+     */
+    public function index(): \support\Response
+    {
+        return json(ResultCode::SUCCESS);
+    }
+
+    /**
+     * 文件上传
+     * @return \support\Response|void
+     * @throws \Exception
+     */
+    public function upload()
+    {
+        if (request()->isPost()) {
+            $file = Upload::instance()->upload();
+            if (!$file) {
+                return $this->error(Upload::instance()->getError());
+            }
+            return json($file);
+        }
+    }
+
+    /**
+     * 远程下载图片
+     * @return mixed
+     */
+    public function getImage()
+    {
+        if (request()->isPost()) {
+            $file = Upload::instance()->download(input('url'));
+            if (!$file) {
+                return $this->error(Upload::instance()->getError());
+            }
+            return json($file);
+        }
+    }
+
+}