求教:自动更新,有没人做过这种代码?
我要实现的是每隔半小时(或1小时,或3小时),文章列表里的文章就自动更新一次,也就是每次的文章列表里的文章都是不一样
的,而且如果后台有最新添加的文章,那么这些最新添加的必然排在最前面,后面紧接的是原来即将更新的那一批文章,
如此周期循环
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1) 展示的列表读缓存文件.
2) 一个php文件执行更新列表操作,比如a.php.
3) 更新方式如下任选其一.
3.1) server制定定时任务,每XX小时执行一下a.php.
3.2) 人工触发,进列表页面做一个判断,看缓存文件上次更新距离现在多久,如果超过XX小时,执行一下a.php
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如果是linux,就用crontab吧。
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有请求进来的时候判断距离上次更新是否超过半小时,如果超过则更新
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要展示在浏览器那么使用JS或者 JQUERY来完成.

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