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Distinct names for multiple buttons

abhinay kumar reddy

Joined: May 01, 2012
Posts: 1
Hello guys,

I have been working on a shopping site. i need to create different number of buttons in the jsp page according to the database.

this is my code

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "">
<%@ page import="java.sql.*" %>
<%@ page import="*" %>
<script language="javascript">


try {

String connectionURL = "jdbc:mysql://localhost:3306/login";
Connection connection = null;
Statement statement = null;
ResultSet rs= null;
connection = DriverManager.getConnection(connectionURL, "root", "root");
statement = connection.createStatement();
String QueryString = "SELECT * from revolvingchair";
rs = statement.executeQuery(QueryString);
String s[];
int i=10;
<TABLE cellpadding="15" border="1" style="background-color: #ffffcc;">
<th>Item ID</th> <th>Item Name</th> <th>Item Description</th> <th>Item Price</th> <th>Item Available</th> <th>Quantity</th>

while ( {
<TD><input name="<% rs.getString(2);%>" type="submit" value="AddtoCart" /></TD></TR>
<% i++;
} %>
} catch (Exception ex) {

out.println("Unable to connect to database.");

<input type="submit" value="Add" name="AddtoCart" ></input>




My particular problem is i cannot differentiate the buttons when the user clicks the name wich i have given is taking as null please help me how to declare distinct names to buttons
Stefan Evans

Joined: Jul 06, 2005
Posts: 1580
Its been said many times before.
Scriptlet code in a JSP is bad
Database connections in a JSP is worse.

The Database code should be in a bean.
It should run the query, and convert the results into a List of java objects.
Your JSP should receive that List of objects and display it appropriately.

I don't see a form on your page. What are you submitting and to where?

In order to distinguish which button is pressed you need to give each button a distinct value. Or search for each button by name (the former being preferable)

I would suggest doing it as a link:

and then in the addToCart servlet handling this request:

request.getParameter("item") would tell you the id of the item you are wanting to add.

I agree. Here's the link:
subject: Distinct names for multiple buttons
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