struts1与struts2的防止表单重复提交

struts1的防止表单重复提交

一、方法：利用令牌来解决页面重复提交的问题

二、步骤

　　2.1  Action中需要添加以下代码

public ActionForward entry(ActionMapping mapping, ActionForm form,
           HttpServletRequestrequest, HttpServletResponse response)
           throws Exception {
       saveToken(request);
       return mapping.findForward("showAll");
    }
    public ActionForward  update(ActionMapping mapping, ActionForm form,
           HttpServletRequestrequest, HttpServletResponse response)
           throws Exception {
       if (isTokenValid(request, true)) {
           UserForm actionForm=(UserForm)form;
           .................
           return mapping.findForward("success");
       }else{
           saveToken(request);
           return mapping.findForward("error");
       }  

    }      

　　2.2 jsp页面必须用struts1标签表单

<%@ taglib uri="http://struts.apache.org/tags-html"  prefix="html" %>
<html:form action="User" method="post">
‘‘‘‘‘‘‘‘‘‘‘‘‘
</html:form>

struts1与struts2的防止表单重复提交