symfony2 路由工作原理及配置，symfony2工作原理

symfony2 路由工作原理及配置，symfony2工作原理

1、路由是程序的方法和URL的一一映射。

在配置文件里，把经常访问的路由放在前面，可以提高路由匹配的效率。

2、路由匹配的两种方式

• Annotation

　　允许在方法的上面用注释定义方法运行状态的功能

<span>class</span> UserController <span>extends</span><span> Controller{
    </span><span>/*</span><span>*
     * @Route("/user/login")
     * @Template()
     </span><span>*/</span>
     <span>public</span> <span>function</span><span> loginAction(){
         </span><span>//</span><span>代码</span>
<span>     }   
}</span>

• router.yml

　　symfony2常用的配置格式

两种方法不能同时用。

3、URL的定义

静态URL和动态URL

<?<span>php

namespace Scource\WebBundle\Controller;

</span><span>use</span><span> Symfony\Bundle\FrameworkBundle\Controller\Controller;
</span><span>use</span><span> Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
</span><span>use</span><span> Sensio\Bundle\FrameworkExtraBundle\Configuration\Template;
</span><strong><span>use</span><span> Sensio\Bundle\FrameworkExtraBundle\Configuration\Method;<span>//</span></span></strong><span>下面路由定义中用到Method<br /><br /></span><span>//</span><span>定义总的router，如果当前控制器中用到的路由都是以/page开始</span><span>
/*</span><span>*
 * @Route("/page")
 </span><span>*/</span>
<span>class</span> DefaultController <span>extends</span><span> Controller
{
    </span><span>/*</span><span>*
     * @Route("/{page_num}",defaults={"page_num":1},requirements={"page_num"="\d+"})
     * @Template()
     * @Method("get")
     </span><span>*/</span>
    <span>//</span><span>以上注释并不是没有用，是利用注释动态影响程序代码，定义总的路由之后，在<span>定义</span>当前路由时，只定义第二级路由就可以
    //defaults={"page_num":1}设置page_num默认值为1
    //requirements={"page_num"="\d+"}要求page_num必须为数字
    //http://localhost:8000/app_dev.php/page/555</span>
    <span>public</span> <span>function</span> indexAction(<span>$page_num</span><span>)
    {
        </span><span>$method</span> = <span>$this</span>->getRequest()->getMethod();<span>//</span><span>获取表单数据的传送方式</span>
        <span>return</span> <span>array</span>('name' => <span>$page_num</span><span>);
    }
    </span><span>/*</span><span>*
     * @Route("/test",name="page_test")
     * @Template()
     </span><span>*/</span>
    <span>//</span><span>name="page_test"设置路由名称
    //通过命令行>php app/console router:match /page/test  可以查询/page/test的路由信息
    //http://localhost:8000/page/test?name=world</span>
    <span>public</span> <span>function</span><span> testAction() {
        </span><span>$name</span> = <span>$this</span>->getRequest()->get('name');<span>//</span><span>获取临时传递参数的值</span>
        <span>return</span> <span>array</span>('name' => <span>$name</span><span>);
    }
}</span>

//////////////

use Sensio\Bundle\FrameworkExtraBundle\Configuration\ParamConverter