使用ZF1.0的时候发现它的MVC模式的view模板缺省为phtml,而REST接口要求根据客户要求Accept协议头返回不同格式的结果。考察了一下整个Framework,发现可以用Plugin简单地实现不同View模板的选择。下面是Plugin的代码:
<?php /** * Choose correct view for RESTful client * * @author lht * @version */ final class Restful extends Zend_Controller_Plugin_Abstract { public function preDispatch(Zend_Controller_Request_Abstract $request) { $viewRenderer = Zend_Controller_Action_HelperBroker::getStaticHelper('viewRenderer'); if (preg_match('/text\/xml/i', $request->getHeader('Accept'))) { $this->getResponse()->setHeader('Content-Type', 'text/xml; charset=utf-8'); $viewRenderer->setViewSuffix('pxml'); } elseif (preg_match('/application\/json/i', $request->getHeader('Accept'))) { $this->getResponse()->setHeader('Content-Type', 'application/json; charset=utf-8'); $viewRenderer->setViewSuffix('pjson'); } elseif (preg_match('/text\/plain/i', $request->getHeader('Accept'))) { $this->getResponse()->setHeader('Content-Type', 'text/plain; charset=utf-8'); $viewRenderer->setViewSuffix('ptxt'); } } }
可以在index.php中这样使用:
$controller = Zend_Controller_Front::getInstance(); $controller->setControllerDirectory('../application/default/controllers'); $controller->throwExceptions(false); // should be turned on in development time $controller->registerPlugin(new Restful());
这样如果Restful client如果Accept: text/xml,那么就会收到.pxml模板的内容。