<div class="codetitle"><a style="CURSOR: pointer" data="93194" class="copybut" id="copybut93194" onclick="doCopy('code93194')"> 代码如下:<div class="codebody" id="code93194"> <?php echo CHtml::link('错误链接','user/register')?> <?php echo CHtml::link('正确链接',array('user/register'))?> 假定设定了UrlManager的配置为Path模式,用yii默认的配置: <div class="codetitle"><a style="CURSOR: pointer" data="84908" class="copybut" id="copybut84908" onclick="doCopy('code84908')"> 代码如下:<div class="codebody" id="code84908"> 'urlManager'=>array( 'urlFormat'=>'path', 'rules'=>array( '<controller:w+>/<id:d+>'=>'/view', '<controller:w+>/<action:w+>/<id:d+>'=>'/', '<controller:w+>/<action:w+>'=>'/', ), 上面两行代码会生产什么样的链接地址? http:///user/register //错误链接 http:///index.php/user/register //正确链接 第一个链接是错误的,浏览器会返回404错误。第二个链接会访问UserController的Register方法。区别就在于第二个链接在生成的时候我们传入的参数是一个array数组,而第一个方法是一个简单字符串。Yii在处理Url的时候,遇到简单字符串会直接使用该字符串作为最终的Url,而当遇到数组的时候会调用Controller的CreateUrl来生成Url. 说到简单字符串,这两个链接中其实有一个非常本质的区别。虽然同样都是字符串'user/register',但是在第一个字符串中就代表一个13个字符的相对路径,而第二个链接中则代表UserController的registerAction,是有着特俗意义的。 附上Yii处理Url的方法NormalizeUrl的源代码: <div class="codetitle"><a style="CURSOR: pointer" data="62881" class="copybut" id="copybut62881" onclick="doCopy('code62881')"> 代码如下:<div class="codebody" id="code62881"> /* Normalizes the input parameter to be a valid URL. If the input parameter is an empty string,the currently requested URL will be returned. If the input parameter is a non-empty string,it is treated as a valid URL and will be returned without any change. If the input parameter is an array,it is treated as a controller route and a list of GET parameters,and the {@link CController::createUrl} method will be invoked to create a URL. In this case,the first array element refers to the controller route, and the rest key-value pairs refer to the additional GET parameters for the URL. For example,array('post/list','page'=>3) may be used to generate the URL /index.php?r=post/list&page=3 . @param mixed $url the parameter to be used to generate a valid URL @return string the normalized URL / public static function normalizeUrl($url) { if(is_array($url)) { if(isset($url[0])) { if(($c=Yii::app()->getController())!==null) $url=$c->createUrl($url[0],array_splice($url,1)); else $url=Yii::app()->createUrl($url[0],1)); } else $url=''; } return $url==='' ? Yii::app()->getRequest()->getUrl() : $url; }
(编辑:李大同)
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