Reputation: 11
I developed simeple web application. In one jsp i get values from preivous servlet file using getattribute and set attribute.I got the values. But after now i want that values from current jsp to another jsp file. Using getattribute and setattribute i used but the values should display as null.
firstjsp file:
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<%@ page import="javax.servlet.http.*" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<form action="payment.jsp" method="POST">
<h1>Confirmation</h1>
<%
Integer amount=(Integer)request.getAttribute("amt");
String service=(String )request.getAttribute("service");
String month=(String )request.getAttribute("month");
Integer day=(Integer)request.getAttribute("day");
String time=(String)request.getAttribute("time");
String city=(String)request.getAttribute("city");
out.println("<center>");
out.println("<table><tr>");
out.println("<td><h2>Service:"+service+"</td></tr>");
out.println("<tr><td><h2>Month:"+month+"</td></tr>");
out.println("<tr><td><h2>Date:"+day+"</td></tr>");
out.println("<tr><td><h2>Time:"+time+"</td></tr>");
out.println("<tr><td><h2>City:"+city+"</td></tr>");
out.println("<tr><td><h2>Total Amount:Rs."+amount+"</td></tr>");
out.println("</center>");
request.setAttribute("amt",amount);
%>
<center>
<input type="submit" value="Confirm"></input>
</center>
</form>
</body>
</html>
payment.jsp:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h2>Select bank</h2>
<%!Integer money;%>
<%
if(request.getAttribute("amt")!=null)
{
money=(Integer) request.getAttribute("amt");
out.println(""+money);
}
%>
</body>
</html>
Upvotes: 1
Views: 15180
Reputation: 681
in order to access the value you set in the first jsp, you have better to put the value using session in this way.request.getSeession.setAttribute("amount",amount);
then in the second jsp access it like this
<form>
<input type="hidden" value="<%=session.getAttribute("amount")%>"/>
<form>
i hope it solves your problem
Upvotes: 0
Reputation: 5108
Set whatever values you want to access in payment.jsp
in HTML hidden control as below :-
<form action="payment.jsp" method="POST">
<input type="hidden" name="amt" value="<%= amount%>" />
</form>
Request object in JSP spans only a single HTTP request. So when you forward the request to your first JSP file it is a single request. But when you submit the form and payment.jsp
loads, the request object is cleared since it is a new HTTP request to the server.
Upvotes: 1
Reputation: 3450
You may use session
instead of request
implicit object.
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<form action="payment.jsp" method="POST">
<h1>Confirmation</h1>
<%
Integer amount=(Integer)request.getAttribute("amt");
String service=(String )request.getAttribute("service");
String month=(String )request.getAttribute("month");
Integer day=(Integer)request.getAttribute("day");
String time=(String)request.getAttribute("time");
String city=(String)request.getAttribute("city");
out.println("<center>");
out.println("<table><tr>");
out.println("<td><h2>Service:"+service+"</td></tr>");
out.println("<tr><td><h2>Month:"+month+"</td></tr>");
out.println("<tr><td><h2>Date:"+day+"</td></tr>");
out.println("<tr><td><h2>Time:"+time+"</td></tr>");
out.println("<tr><td><h2>City:"+city+"</td></tr>");
out.println("<tr><td><h2>Total Amount:Rs."+amount+"</td></tr>");
out.println("</center>");
session.setAttribute("amt",amount);//Changed to session
%>
<center>
<input type="submit" value="Confirm"></input>
</center>
</form>
</body>
</html>
payment.jsp:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h2>Select bank</h2>
<%!Integer money;%>
<%
if(session.getAttribute("amt")!=null)//changed to session
{
money=(Integer) session.getAttribute("amt");//changed to session
out.println(""+money);
session.removeAttribute("amt");
}
%>
</body>
</html>
Upvotes: 1