使用struts的token防止页面重复提交-优快云博客

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.sunsoft.struts.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;
import org.apache.struts.actions.DispatchAction;

/** 
 * MyEclipse Struts
 * Creation date: 12-15-2007
 * 
 * XDoclet definition:
 * @struts.action path="/insert" name="userForm" input="/adduser.jsp" scope="request" validate="true"
 * @struts.action-forward name="prepare" path="/adduser.jsp"
 * @struts.action-forward name="success" path="success.jsp"
 */
public class InsertAction extends DispatchAction {
	/*
	 * Generated Methods
	 */

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward prepare(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		
		this.saveToken(request);
		return mapping.findForward("prepare");
	}
	
	public ActionForward adduser(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		
		if(!this.isTokenValid(request)){
			ActionMessages messages = new ActionMessages();
			messages.add("token", new ActionMessage("error.token"));
			this.saveErrors(request, messages);
			return mapping.getInputForward();
		}else{
			this.resetToken(request);
			return mapping.findForward("success");
		}
	}
}

页面文件：

adduser.jsp

<%@ page language="java" pageEncoding="GBK"%>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean"%> 
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html"%>
 
<html> 
	<head>
		<title>JSP for UserForm form</title>
	</head>
	<body>
		<html:form action="/insert?method=adduser">
			sex : <html:text property="sex"/><html:errors property="sex"/><br/>
			userName : <html:text property="userName"/><html:errors property="userName"/><br/>
			password : <html:password property="password"/><html:errors property="password"/><br/>
			<html:submit/><html:cancel/>
		</html:form>
		<html:errors/>
	</body>
</html>

配置文件

struts-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd">

<struts-config>
  <data-sources />
  <form-beans >
    <form-bean name="userForm" type="com.sunsoft.struts.form.UserForm" />

  </form-beans>

  <global-exceptions />
  <global-forwards />
  <action-mappings >
    <action
      attribute="userForm"
      input="/adduser.jsp"
      name="userForm"
      path="/insert"
      scope="request"
      parameter="method"
      type="com.sunsoft.struts.action.InsertAction">
      <forward name="prepare" path="/adduser.jsp" />
      <forward name="success" path="/success.jsp" />
    </action>

  </action-mappings>

  <message-resources parameter="com.sunsoft.struts.ApplicationResources" />
</struts-config>