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延迟更新_缓存优化

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Release: 2016-06-07 11:45:25
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默认的延迟更新,用的是F快速缓存,有个缺点:所有文件都在一个目录下,对于统计页面非常多的站点,可能不太好。比如一个网站上百万个页面需要统计,那么产生的缓存文件数量将是海量的。。
这里做了一点修改,缓存方式改为cache()方法,支持多级目录缓存。
在配置文件中开启子目录缓存即可。
打开:ThinkPHP/Extends/Model/AdvModel.class.php
将lazyWrite函数替换为下面的。protected function lazyWrite($guid,$step,$lazyTime) {<br>         $cache= Cache::getInstance('',array("temp"=>TEMP_PATH.'lazy'));//缓存文件放在runtime/temp/lazy 目录下,可以自定义。<br>         if(false !== ($value = $cache->get($guid))) { // 存在缓存写入数据<br>             if(time()>$cache->get($guid.'_time')+$lazyTime) {<br>                 // 延时更新时间到了,删除缓存数据 并实际写入数据库<br>                 $cache->rm($guid);<br>                 $cache->rm($guid.'_time');<br>                 return $value+$step;<br>             }else{<br>                 // 追加数据到缓存<br>                 $cache->set($guid,$value+$step);<br>                 return false;<br>             }<br>         }else{ // 没有缓存数据<br>             <br>             $cache->set($guid,$step);<br>             // 计时开始<br>             $cache->set($guid.'_time',time());<br>             return false;<br>         }<br>     }

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