利用Plugin为ZendFramework加上RESTful动作

最新推荐文章于 2025-07-15 10:17:52 发布

iteye_14303

最新推荐文章于 2025-07-15 10:17:52 发布

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文章标签： Zend json PHP XML Blog

本文介绍了一种通过HTTP METHOD (GET, POST, PUT, DELETE) 和HTTP ACCEPT头来区分不同请求并返回相应内容类型的RESTful API设计方法。具体实现了根据不同HTTP METHOD调用相应的Action，并依据客户端接受的内容类型设置响应头。

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上一篇Blog记录了通过Controller Plugin根据HTTP ACCEPT选择性地出现不同的模板，RESTful API是通过HTTP METHOD(GET, POST, PUT, DELETE等)来选择执行不同的动作。同样通过Plugin可以将不同的HTTP METHOD分派给不同的Action来处理。修改后的Plugin如下：

<?php

/**
 * Choose correct view for RESTful client
 *  
 * @author lht
 * @version 
 */

final class Restful extends Zend_Controller_Plugin_Abstract {
	protected function adjustAction(Zend_Controller_Request_Abstract $request) {
    	if ($request->getMethod() == "GET") {
    		$request->setActionName("get");
    	}elseif ($request->getMethod() == "POST") {
    		$request->setActionName("post");
    	}elseif ($request->getMethod() == "PUT") {
    		$request->setActionName("put");;
    	}elseif ($request->getMethod() == "DELETE") {
    		$request->setActionName("delete");;
    	}
	}
	
	protected function adjustView(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');
        }
        $this->getResponse()->setHeader('X-Action-Name', $request->getActionName(), TRUE);
	}
	
    public function preDispatch(Zend_Controller_Request_Abstract $request) {
    	$this->adjustAction($request);
    	$this->adjustView($request);
    }
}

具体的Controller Action可以如下：

<?php

/**
 * UsersController
 * 
 * @author
 * @version 
 */

class UsersController extends Zend_Controller_Action {
	/**
	 * The default action - show the home page
	 */
	public function indexAction() {
		$this->getAction ();
	}
	
	public function getAction() {
		$this->view->userId = $this->getUserId();
	}
	
	public function postAction() {
		$this->view->userId = $this->getUserId();
	}
	
	public function putAction() {
		$this->view->userId = $this->getUserId();
	}
	
	public function deleteAction() {
		$this->view->userId = $this->getUserId();
	}

	protected function getUserId() {
		if ($this->_getParam("id")) {
			$userId = $this->_getParam("id");
		} elseif ($this->_getParam("action") == "index") {
			$userId = NULL;
		} else {
			$userId = $this->_getParam("action");
		}
		return $userId;
	}
}

这样就可以通过http://yourhost.com/users来管理用户；通过http://yourhost.com/users/1来管理user ID=1的用户了。