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struts2解决表单重复提交问题方法：而tokenSession则什么都不会发生
example:
token,jsp页面
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP '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">
</head>
<body>
<s:form action="token">
<s:textfield name="username" label="username"></s:textfield>
<s:token></s:token>
<s:submit></s:submit>
</s:form>
</body>
</html>
TokenAction类：
package cn.lfd.web.token;
import com.opensymphony.xwork2.ActionSupport;
public class TokenAction extends ActionSupport {
private static final long serialVersionUID = 1L;
private String username;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
@Override
public String execute() throws Exception {
System.out.println(username);
return SUCCESS;
}
}
struts.xml配置文件：
<action name="token" class="cn.lfd.web.token.TokenAction"> <interceptor-ref name="tokenSession"></interceptor-ref> <interceptor-ref name="defaultStack"></interceptor-ref> <result>/success.jsp</result> <result name="invalid.token">/token-error.jsp</result><!-- 若用的是tokenSession拦截器不用这个result --> </action>
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原文地址：http://blog.csdn.net/qq_22498277/article/details/51347279
