以下是常用禁止缓存的四种方法：

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方法一:

客户端缓存要在head中加入类似如下内容:

<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

< meta http-equiv ="pragma" content ="no-cache" >
< meta http-equiv ="cache-control" content ="no-cache" >
< meta http-equiv ="expires" content ="0" >

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方法二:

在服务端的动态网页中禁止缓存，要加入类似如下脚本:

response.setHeader( " Pragma " , " No-cache " );
response.setHeader( " Cache-Control " , " no-cache " );
response.setDateHeader( " Expires " , 0 );

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方法三:

设置有限时间的缓存:

int minutes = 10 ;
Date d = new Date();
String modDate = d.toGMTString();
String expDate = null