struts2的防止表单重复提交

防止表单重复提交其实就是struts2的一个拦截器的使用；

struts.xml配置文件：

 <?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>

     <constant name="struts.ui.theme" value="simple" />

     <!-- struts2在防止表单重复提交的拦截中有2个，分别是：token，tokenSession。tokenSession继承token而来。

          通常情况下，使用tokenSession客户端感觉会比较友好。 -->

     <!-- 如果重复提交，会跳转到error.jsp页面 -->

     <package name="person" namespace="/test" extends="struts-default">

         <action name="token" class="com.ljq.action.PersonAction">

             <interceptor-ref name="defaultStack" />

             <interceptor-ref name="token" />

             <!-- 如果重复提交，跳转到error.jsp页面 -->

             <result name="invalid.token">/WEB-INF/page/error.jsp</result>

             <result>/WEB-INF/page/message.jsp</result>

         </action>

         <action name="tokenSession" class="com.ljq.action.PersonAction">

             <interceptor-ref name="defaultStack" />

             <interceptor-ref name="tokenSession" />

             <!-- 如果重复提交，不会跳转到error.jsp页面 -->

             <result name="invalid.token">/WEB-INF/page/error.jsp</result>

             <result>/WEB-INF/page/message.jsp</result>

         </action>

     </package>

 </struts>

Action类：

 package com.action;

 import java.util.ArrayList;

 import java.util.List;

 public class PersonAction {

     private String name;

     public String execute() {

         System.out.println(name);

         return "success";

     }

     public String getName() {

         return name;

     }

     public void setName(String name) {

         this.name = name;

     }

 }

index.jsp表单页面：

 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

 <%@ taglib uri="/struts-tags" prefix="s"%>

 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

 <html>

   <head>

     <title>防止表单重复提交</title>

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

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

     <meta http-equiv="expires" content="0">

   </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" namespace="/test" method="post">

           姓名:<s:textfield name="name"/>

           <s:token></s:token>

           <input type="submit" value="发送"/>

       </s:form>

   </body>

 </html>

message.jsp返回成功页面：

 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

 <%@ taglib uri="/struts-tags" prefix="s"%>

 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

 <html>

   <head>

     <title>My JSP 'index.jsp' starting page</title>

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

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

   </head>

   <body>

      <s:property value="name"/>

   </body>

 </html>

error.jsp表单重复提交提示页面：

 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

 <%@ taglib uri="/struts-tags" prefix="s" %>

 <!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">

   </head>

   <body>

       您已经提交了表单，请不要重复提交。

   </body>

 </html>

巴特西

struts2的防止表单重复提交

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