<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html>
<head>
<base href="<%=basePath%>"> <title>My JSP 'Struts_token.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
--> </head> <body>
<!-- 防止表单重复提交，记得在form表单里填上<s:token></s:token> -->
<!-- action="token"、action="tokenSession" -->
<s:form action="token.action" namespace="/test" method="post">
姓名:<s:textfield name="name"/><s:token></s:token>
<input type="submit" value="发送"/>
</s:form>
</body>
</html>
其实很简单实用，只要在表单中在form表单里填上<s:token></s:token> 就可以了，是不是很简单。原理就是它会自动生成一串二进制码。STRUTS会自动在提交的时候去做比对。