This problem has plagued me for a long time. The previous method was to use JS, And now I finally found a solution:
Popular online versions:
<%
response.setHeader("Pragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
%>
I tested the actual effective version:
<%
response.setHeader("Pragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
response.setHeader("Cache-Control", "no-store");
response.setDateHeader("Expires", 0);
%>
Note: I add it to JSP files that do not require the browser to cache. The following is an example:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%
response.setHeader("Pragma", "No-cache");
response.setHeader("Cache-Control", "no-cache");
response.setHeader("Cache-Control", "no-store");
response.setDateHeader("Expires", 0);
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<meta http-equiv="Expires" content="0"><meta http-equiv="Cache-Control" content="no-cache"><meta http-equiv="Cache-Control" content="no-store"><meta http-equiv="Pragma" content="no-cache"><Title> List page </title><Meta http-equiv = "Description" content = "List users for Operation"><body><form name="manage" action="/user_manage/delUser" method="post"><s:iterator value="list" status="user"><input type="checkbox" name="user.delId"value="<s:property value="id" />"><s:property value="username" /><s:property value="password" /><br /></s:iterator><A href = javascript: Manage. Submit ();> Delete the selected user </a></form><br /><A href = "/logout"> log out </a><s:debug></s:debug></body>
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