Struts2防止表单重复提交（源代码）

最新推荐文章于 2018-08-04 23:14:48 发布

阿轮_

最新推荐文章于 2018-08-04 23:14:48 发布

阅读量907

点赞数

CC 4.0 BY-SA版权

分类专栏： java 文章标签： struts 表单重复提交 token

本文链接：https://blog.youkuaiyun.com/lun379292733/article/details/19833023

java 专栏收录该内容

15 篇文章

订阅专栏

本文介绍如何使用Struts2的token拦截器防止表单重复提交，并通过具体示例展示了配置方法及前后端实现细节。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

struts配置文件：struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>

<package name="default" namespace="/" extends="struts-default">
<interceptors>
<interceptor-stack name="myInterceptor">
<interceptor-ref name="defaultStack" />
<interceptor-ref name="tokenSession" />
</interceptor-stack>
</interceptors>
<default-interceptor-ref name="myInterceptor"></default-interceptor-ref>
</package>


<package name="user" namespace="/" extends="default">
<action name="userLogin" class="com.lun.action.UserAction" method="login">
<result name="success">/login_success.jsp</result>
<result name="invalid.token">/error.jsp</result>
</action>
</package>
</struts>

后台action处理类：UserAction.java

package com.lun.action;
import java.text.SimpleDateFormat;
import java.util.Date;
import com.opensymphony.xwork2.ActionSupport;
/**
* @Desc：使用struts的token，解决表单重复提交的问题
* @Author：张轮
* @Date：2014-2-24下午03:44:01
*/
@SuppressWarnings("serial")
public class UserAction extends ActionSupport{

private String userName;
private String password;

public String login(){
try {
System.out.println("---开始---"+new SimpleDateFormat("yyyy-MM-dd hh:mm:ss:SSS").format(new Date()));
//延迟3秒钟，留足够的时间，在前台多点几次提交按钮，看控制台输出效果
Thread.sleep(3000);
System.out.println("userName:"+userName+" , password:"+password);
System.out.println("---结束---"+new SimpleDateFormat("yyyy-MM-dd hh:mm:ss:SSS").format(new Date()));
} catch (InterruptedException e) {
e.printStackTrace();
}
return SUCCESS;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}

jsp前台带表单页面：index.jsp

<%@ 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 'index.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">
</head>

<body>
<form action="userLogin.action" method="post">

<s:token></s:token>

用户名：<input name="userName" /><br/>
密   码：<input name="password" /><br/>
<input type="submit" value="登录" style="width: 100px;height: 60px;"/>
</form>
</body>
</html>

login_success.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'login_success.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">
</head>

<body>
<h1>登录成功！</h1>
<h2>用户名：${userName}</h2>
<h2>密码：${password}</h2>
</body>
</html>

error.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'error.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">
</head>

<body>
<h1>你已经提交过一次了！</h1>
</body>
</html>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>


<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>