清除缓存我们只需要设置页面为no-cache就可以了，当然像asp,php这种只需要设置Expires操作即可，具体如下。 代码如下 复制代码
HTML网页 <META HTTP-EQUIV="pragma" CONTENT="no-cache"> <META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate"> <META HTTP-EQUIV="expires" CONTENT="Wed, 26 Feb 1997 08:21:57 GMT"> 或者<META HTTP-EQUIV="expires" CONTENT="0">
ASP网页 Response.Expires = -1 Response.ExpiresAbsolute = Now() - 1 Response.cachecontrol = "no-cache"
PHP网页 header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); header("Cache-Control: no-cache, must-revalidate"); header("Pragma: no-cache");
JSP网页 response.setHeader("Pragma", "No-cache"); response.setHeader("Cache-Control", "no-cache"); response.setDateHeader("Expires", 1);
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