仿struts1的防止表单重复提交
package com.gc.struts.action;
import java.io.File;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
/**
* MyEclipse Struts
* Creation date: 06-10-2010
*
* XDoclet definition:
* @struts.action validate="true"
*/
public class YulanAction extends Action {
/*
* Generated Methods
*/
/**
* Method execute
* @param mapping
* @param form
* @param request
* @param response
* @return ActionForward
*/
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
String token=this.generateToken(request);
request.setAttribute("clientToken", token);
request.getSession().setAttribute("token", token);
return mapping.findForward("ok");//跳转到showExcel.jsp
}
}
<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<%
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>showExcel.jsp Content</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">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<%
String clintToken=request.getAttribute("clientToken")==null?"":request.getAttribute("clientToken").toString();
%>
<form action="showExcel.do" method="post">
<input type="hidden" value="<%=clintToken %>" name="clientToken"/>
<input type="submit" value="提交" />
</form>
</body>
</html>
package com.gc.struts.action;
import java.io.File;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import com.gc.struts.form.TestForm;
/**
* MyEclipse Struts
* Creation date: 06-10-2010
*
* XDoclet definition:
* @struts.action validate="true"
*/
public class ShowExcelAction extends Action {
/*
* Generated Methods
*/
/**
* Method execute
* @param mapping
* @param form
* @param request
* @param response
* @return ActionForward
*/
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
TestForm test=(TestForm)form;
for(int i=0;i<1000000000;i++){
}//这个是为了能多点几次提交
String clientToken=test.getClientToken();
Object sessionToken=request.getSession().getAttribute("token");
System.out.println(sessionToken);
if(sessionToken!=null&&!sessionToken.toString().equals(clientToken)){
System.out.println("重复提交了");
}else{
System.out.println("提交表单");
}
String token=this.generateToken(request);
request.getSession().setAttribute("token", token);
return null;
}
}
看看打印结果：
9694ec0baa72277bbeb071356b351cd4
提交表单
f55c7a7d71b2635130438a193bd30225
重复提交了
df7c73b27c0582613e7d11f79a15ae58
重复提交了
f2778990b6abbaaec84ba89e4de24dfc
重复提交了
80fb030346bfb023abb596a34eb05d5a
重复提交了
c071865f5efbe2e7aa127ac1d3ef83d3
重复提交了
9b68a90308a5ff4635c575f5a189c86f
重复提交了
62d557df874c638fbdd1172917e2b095
重复提交了
860d5ce47de84e953f69a70b13f6473f
重复提交了
8c310fedb5de55ce53a45e1a0d2aadb8
重复提交了
88b2a367f783475473928ac420d468f3
重复提交了
只提交了一次。
import java.io.File;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
/**
* MyEclipse Struts
* Creation date: 06-10-2010
*
* XDoclet definition:
* @struts.action validate="true"
*/
public class YulanAction extends Action {
/*
* Generated Methods
*/
/**
* Method execute
* @param mapping
* @param form
* @param request
* @param response
* @return ActionForward
*/
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
String token=this.generateToken(request);
request.setAttribute("clientToken", token);
request.getSession().setAttribute("token", token);
return mapping.findForward("ok");//跳转到showExcel.jsp
}
}
<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<%
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>showExcel.jsp Content</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">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<%
String clintToken=request.getAttribute("clientToken")==null?"":request.getAttribute("clientToken").toString();
%>
<form action="showExcel.do" method="post">
<input type="hidden" value="<%=clintToken %>" name="clientToken"/>
<input type="submit" value="提交" />
</form>
</body>
</html>
package com.gc.struts.action;
import java.io.File;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import jxl.Sheet;
import jxl.Workbook;
import jxl.read.biff.BiffException;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import com.gc.struts.form.TestForm;
/**
* MyEclipse Struts
* Creation date: 06-10-2010
*
* XDoclet definition:
* @struts.action validate="true"
*/
public class ShowExcelAction extends Action {
/*
* Generated Methods
*/
/**
* Method execute
* @param mapping
* @param form
* @param request
* @param response
* @return ActionForward
*/
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
// TODO Auto-generated method stub
TestForm test=(TestForm)form;
for(int i=0;i<1000000000;i++){
}//这个是为了能多点几次提交
String clientToken=test.getClientToken();
Object sessionToken=request.getSession().getAttribute("token");
System.out.println(sessionToken);
if(sessionToken!=null&&!sessionToken.toString().equals(clientToken)){
System.out.println("重复提交了");
}else{
System.out.println("提交表单");
}
String token=this.generateToken(request);
request.getSession().setAttribute("token", token);
return null;
}
}
看看打印结果：
9694ec0baa72277bbeb071356b351cd4
提交表单
f55c7a7d71b2635130438a193bd30225
重复提交了
df7c73b27c0582613e7d11f79a15ae58
重复提交了
f2778990b6abbaaec84ba89e4de24dfc
重复提交了
80fb030346bfb023abb596a34eb05d5a
重复提交了
c071865f5efbe2e7aa127ac1d3ef83d3
重复提交了
9b68a90308a5ff4635c575f5a189c86f
重复提交了
62d557df874c638fbdd1172917e2b095
重复提交了
860d5ce47de84e953f69a70b13f6473f
重复提交了
8c310fedb5de55ce53a45e1a0d2aadb8
重复提交了
88b2a367f783475473928ac420d468f3
重复提交了
只提交了一次。