Yii2 components api/controller

最新推荐文章于 2025-08-24 23:58:13 发布

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最新推荐文章于 2025-08-24 23:58:13 发布

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文章标签： json

原文链接：http://www.cnblogs.com/mztest/p/6729008.html

本文介绍了一个用于解决Yii2框架下API控制器返回JSON数据时，在低版本Internet Explorer浏览器中出现的问题的组件。该组件能自动检测浏览器类型，并在必要时将JSON数据包装为JSONP格式，以避免文件下载行为。

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When we wrote API, those controllers need to implement the following feature:

1. return JSON format data

2. sometimes support JSONP format data also.

3. support stupid low version IE

If we set format with Yii2, the low version IE will download the response content as a file.

Yii::$app->response->format = Response::FORMAT_JSON

So I wrote a component for it, any API controller just need to extend it.

 1 namespace api\components;
 2 
 3 use Yii;
 4 use yii\web\Response;
 5 
 6 class Controller extends \yii\web\Controller
 7 {
 8     protected $isLowIE;
 9     protected $callback;
10 
11     public function beforeAction($action)
12     {
13         $this->layout = false;
14         $this->callback = Yii::$app->request->get('callback', false);
15 
16         $this->isLowIE = (boolean)Yii::$app->request->get('ie', false);
17 
18         if (!$this->isLowIE && !$this->callback) {
19             Yii::$app->response->format = Response::FORMAT_JSON;
20         }
21 
22         return parent::beforeAction($action);
23     }
24 
25     /**
26      * @param \yii\base\Action $action
27      * @param mixed $result
28      * @return mixed
29      */
30     public function afterAction($action, $result)
31     {
32         $result = parent::afterAction($action, $result);
33         // your custom code here
34         if ($this->isLowIE || $this->callback) {
35             $result = json_encode($result);
36 
37             if ($this->callback) {
38                 $result = $this->callback .'('. $result .')';
39             }
40         }
41         return $result;
42     }
43 }

转载于:https://www.cnblogs.com/mztest/p/6729008.html