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1.JSP语法 <% response.setHeader("Pragma","no-cache"); response.setHeader("Cache-Control","no-cache"); response.setDateHeader("Expires", 0); %>
2.也可以用以下的HTML语法,可用在静态网页上 <meta http-equiv="Pragma" content="no-cache"> <meta http-equiv="Cache-Control" content="no-cache"> <meta http-equiv="Expires" content="0"> 注意,这些HTML语法要下在<head></head>的标签内。
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