jsp防止按鈕重複提交
阿新 • • 發佈：2019-01-09
使用jquery方法：
<html>
<body>
<form method="get" action="" target="box">
<input id="buttonid" type="submit" value="提交" />
</form>
<script type="text/javascript" src="js/jquery-1.6.2.min.js"></script>
<script>
$("form").submit(function() {
$("#buttonid").val("正在處理..." javawb方法：
原理：在session中插入標記，在一次session中只能提交一次
下面是程式碼：
index.jsp
<body>
<%
String tokenValue = new Date().getTime() + "";
%>
<form action="${pageContext.request.contextPath}/servlet/controler" controler.java
package com.xiajun.control;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class controler extends HttpServlet {
private static final long serialVersionUID = 1L;
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try{
Thread.sleep(2000);
}catch(InterruptedException e){
e.printStackTrace();
}
HttpSession session = request.getSession();
Object token = session.getAttribute("token");
String tokenValue = request.getParameter("token");
System.out.println(token);
System.out.println(tokenValue);
if(token != null && token.equals(tokenValue)){
session.removeAttribute("token");
}else{
response.sendRedirect(request.getContextPath()+ "/token.jsp") ;
return;
}
String name = request.getParameter("name");
System.out.println("name:" + name);
// request.getRequestDispatcher("/success.jsp").forward(request,response);
response.sendRedirect(request.getContextPath()+ "/success.jsp") ;
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request,response);
}
}success.jsp
<body>
成功. <br>
</body>token.jsp
<body>
對不起，不能重複提交！<br>
</body>