覆盖特定操作的 Content-Type
用例:只有一个应该按原样返回普通(文本)内容的操作:
public function actionAsXML()
{
$this->layout = false;
Yii::$app->response->format = Response::FORMAT_XML;
return ['aaa' => [1, 2, 3, 4]];;
}
预定义的响应格式为:
- FORMAT_HTML
- FORMAT_XML
- FORMAT_JSON
- FORMAT_JSONP
- FORMAT_RAW
对于 text/plain
没有开箱即用的 mime 类型,请改用:
public function actionPlainText()
{
$this->layout = false;
Yii::$app->response->format = Response::FORMAT_RAW;
Yii::$app->response->headers->add('Content-Type', 'text/plain');
return $this->render('plain-text'); // outputs template as plain text
}