In my project ,I need to pass the "price" value which is retrieved from the database in "Availability.java" to "display.jsp".I have achieved it, but the problem is.... I also need to pass the "price" value from "display.jsp" to "seat.jsp". When I tried, it returns null value for the price variable.
Availability.java
try {
response.setContentType("text/html;charset=UTF-8");
Class.forName("com.mysql.jdbc.Driver");
conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/bus","root","happy");
Statement stmt=conn.createStatement();
ResultSet rs=stmt.executeQuery("select * from availability");
String fp=request.getParameter("from");
String tp=request.getParameter("to");
String date = request.getParameter("date");
Boolean flag=false;
while(rs.next()){
String from=rs.getString("fromplace").toString();
String to=rs.getString("toplace").toString();
String datedb=rs.getString("date").toString();
String price=rs.getString("price").toString();
if(from.equals(fp) && to.equals(tp) && datedb.equals(date) )
{
//PrintWriter out=response.getWriter();
//out.print("Available");
request.setAttribute("from",from);
request.setAttribute("to",to);
request.setAttribute("date",date);
request.setAttribute("price",price);
request.getRequestDispatcher("display.jsp").forward(request, response);
flag=true;
break;
}
}
if(!flag) {
request.setAttribute("date",date);
request.getRequestDispatcher("Unavailable.jsp").forward(request, response);
}
display.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<table >
<tr >
<th>Fare</th>
</tr>
<tr>
<td id="p">INR ${price }</td>
</tr>
</table>
<center><a href="seat.jsp" > <span>View Seats </span></a></center>
seat.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<body>
<div >
<div >
<div id="seat-map" >
<div >Front</div>
</div>
<div >
<h2>Booking Details</h2>
<h3> Selected Seats (<span id="counter">0</span>):</h3>
<ul id="selected-seats"> </ul>
Total: <b>Rs.<span id="total">0</span></b>
<button >Checkout »</button>
<div id="legend"></div>
</div>
</div>
</div>
<script>
var firstSeatLabel = 1;
$(document).ready(function() {
var $cart = $('#selected-seats'),
$counter = $('#counter'),
$total = $('#total'),
sc = $('#seat-map').seatCharts({
map: [
'ff_ff',
'ff_ff',
'ee_ee',
'ee_ee',
'ee___',
'ee_ee',
'ee_ee',
'ee_ee',
'eeeee',
],
seats: {
f: {
price :document.getElementById("p"),
},
e: {
price : document.getElementById("p"),
},
},
naming : {
top : false,
getLabel : function (character, row, column) {
return firstSeatLabel ;
},
},
legend : {
node : $('#legend'),
items : [
[ 'f', 'available', 'Available' ],
[ 'f', 'unavailable', 'Already Booked']
]
},
click: function () {
if (this.status() == 'available') {
$('<li> Seat - ' this.settings.label ': <b>$' this.data().price '</b> <a href="#" >[cancel]</a></li>')
.attr('id', 'cart-item-' this.settings.id)
.data('seatId', this.settings.id)
.appendTo($cart);
$counter.text(sc.find('selected').length 1);
$total.text(recalculateTotal(sc) this.data().price);
return 'selected';
} else if (this.status() == 'selected') {
$counter.text(sc.find('selected').length-1);
$total.text(recalculateTotal(sc)-this.data().price);
$('#cart-item-' this.settings.id).remove();
return 'available';
} else if (this.status() == 'unavailable') {
return 'unavailable';
} else {
return this.style();
}
}
});
$('#selected-seats').on('click', '.cancel-cart-item', function () {
sc.get($(this).parents('li:first').data('seatId')).click();
});
});
function recalculateTotal(sc) {
var total = 0;
sc.find('selected').each(function () {
total = this.data().price;
});
return total;
}
</script>
How can I achieve this?
Kindly answer my question! Immediate response is appreciatable.
Thank you in advance:)
CodePudding user response：
In display.jsp, in the href, you can have a servlet instead of another jsp page and that servlet can pass as a requestParameter the value you need, and you can perform a forward to your seat.jsp. You can, then, read the parameter that you need in your seat.jsp.
I hope that helps.