yii2 RESTful API 405 Method Not Allowed

關於 Yii2 中 RESTful API 的開發，可以參考另一篇隨筆 http://www.cnblogs.com/ganiks/p/yii2-restful-api-dev.html

測試的過程中遇到一個這樣的問題， 報錯 405 yii2 RESTful API 405 Method Not Allowed

比如請求 PUT 方法 的 http://192.168.4.126/news/162?access-token=100-token

{
    "type": "yii\\web\\MethodNotAllowedHttpException",
    "name": "Method Not Allowed",
    "message": "Method Not Allowed. This url can only handle the following request methods: GET, HEAD.",
    "code": 0,
    "status": 405
}

這里由於不是在 yii2 的前台框架體系中，因此沒有看到堆棧的調試信息，但是要調試也要找到這個報錯 message 的所在：

yii2\filters\VerbFilter.php

    public function beforeAction($event)
    {
        $action = $event->action->id;  
        if (isset($this->actions[$action])) {
            $verbs = $this->actions[$action];
        } elseif (isset($this->actions['*'])) {
            $verbs = $this->actions['*'];
        } else {
            return $event->isValid;
        }

        $verb = Yii::$app->getRequest()->getMethod();
        $allowed = array_map('strtoupper', $verbs);
        if (!in_array($verb, $allowed)) {
            $event->isValid = false;
            // http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.7
            Yii::$app->getResponse()->getHeaders()->set('Allow', implode(', ', $allowed));
            throw new MethodNotAllowedHttpException('Method Not Allowed. This url can only handle the following request methods: ' . implode(', ', $allowed) . '.');
        }

        return $event->isValid;
    }

這里調試打印一下 $action ， 發現每次無論傳入什么 $event 其 ->action->id 都是 view

因此我斷定問題出在 URL, yii 沒有正確辨識出 http://192.168.4.126/news/163

去看看 config 中的 URLManager Rules， 這里當時多余的把 老式的 url rules 放在這里，去掉試試

			'rules' => [
				#'<controller:\w+>/<id:\d+>' => '<controller>/view',
				#'<controller:\w+>/<action:\w+>/<id:\d+>' => '<controller>/<action>',
				#'<controller:\w+>/<action:\w+>' => '<controller>/<action>',
				['class' => 'yii\rest\UrlRule', 'controller' => ['users', 'news']],
			],

果然， 解決了問題