delete retailer jsp file (sir..is this a good logic.. jsp file is useful for what purpose)

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delete retailer jsp file (sir..is this a good logic.. jsp file is useful for what purpose)

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Internet Dreams</title>
<link rel="stylesheet" href="css/screen.css" type="text/css" media="screen" title="default" />

<link rel="stylesheet" media="all" type="text/css" href="c1ss/pro_dropline_ie.css" />
<script type="text/javascript">
function validateForm()
{

var x=document.form1.id.value;

if (x==null || x=="")
  {
  alert("Retailer Id cannot be empty");
  return false;
  }
/*var r=confirm("Untag the products?")
if(r==true)
{
confirm("Are you sure you want to delete retailer?")
}*/

}
</script>
</head>
<body>
<div id="page-heading"><h1>Delete Retailer</h1></div>

<table border="0" width="100%" cellpadding="0" cellspacing="0" id="content-table">
<tr>
    <th rowspan="3" class="sized"><img src="images/shared/side_shadowleft.jpg" width="20" height="300" alt="" /></th>
    <th class="topleft"></th>
    <td id="tbl-border-top">&nbsp;</td>
    <th class="topright"></th>
    <th rowspan="3" class="sized"><img src="images/shared/side_shadowright.jpg" width="20" height="300" alt="" /></th>
</tr>
<tr>
    <td id="tbl-border-left"></td>
    <td>
    <!--  start content-table-inner -->
    <div id="content-table-inner">

<form name="form1" action="RetController" onsubmit="return validateForm();">
    <table border="0" width="100%" cellpadding="0" cellspacing="0">
    <tr valign="top">
    <td>


        <!--  start step-holder
        <div id="step-holder">

            <div class="step-dark-left"><a href="">Registration Form</a></div>
            <div class="step-dark-right">&nbsp;</div>

        </div>
         end step-holder -->
    <br/>

        <!-- start id-form -->
        <table border="0" cellpadding="0" cellspacing="0"  id="id-form">
        <tr>
            <th valign="top">Enter Retailer Id:</th>
            <td><input type="text" name="id" id="id" class="inp-form" /></td>
            <td></td>
        </tr>
        </td>
        <td></td>
    </tr>

    <tr>
        <th>&nbsp;</th>
        <td valign="top">
            <input type="submit" name="submit" value="ret_id"  /></td>
        <td valign="top">   <input type="reset" value="" class="form-reset"  />
        </td>
        <td></td>
    </tr>
    </table>
</form>
    <!-- end id-form  -->

    </td>
    <td>
    </td>
    </tr>
</table>
</form>
</div>
</body>
</html>
View Answers

May 28, 2012 at 4:22 PM

The given code allow the user to enter any id, whose record is to be removed from database. This id is then send to action page to delete that particular record.

1)form.jsp:

< form method="post" name="form" action="delete.jsp" >

Enter Id: < input type="text" name="id">< br>

< input type="submit" value="Submit">

< /form>

2)delete.jsp:

<%@page import="java.sql.*"%>

<% String id=request.getParameter("id"); int no=Integer.parseInt(id); int sumcount=0; try { Class.forName("com.mysql.jdbc.Driver").newInstance(); Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "root"); Statement st = conn.createStatement(); st.executeUpdate("DELETE FROM employee WHERE id = '"+no+"'"); response.sendRedirect("application.jsp"); } catch(Exception e){} %>

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