<!doctype html public "-//w3c/dtd HTML 4.0//en">
<html>
<!-- Copyright (c) 1999 by BEA Systems, Inc. All Rights Reserved.-->
<head>
<title>Session Servlet</title>
</head>
<body bgcolor="#FFFFFF">
<font face="Helvetica">
<h2>
<font color=#DB1260>
Session Servlet
</font>
</h2>
<p>
This servlet demonstrates the use of HTTP sessions. You can add or delete
named values to a session. The same session can be retrieved next time the
user visits the page via a browser cookie. Use this form to see your additions
and deletions at work. Check the code to see how adding and deleting session
name/value pairs works.
</p>
<%!
HttpSession session;
%>
<%
session = request.getSession(true);
if (request.getParameter("AddValue") != null) {
session.putValue("SessionServlet." + request.getParameter("NameField"),
request.getParameter("ValueField"));
} else if (request.getParameter("DeleteValue") != null) {
session.removeValue("SessionServlet." + request.getParameter("NameField"));
}
%>
<center>
<table border=1 cellspacing=2 cellpadding=5 width=400 bgcolor=#EEEEEE>
<th colspan=2>Session<br>
</th>
<tr>
<td><B>Name</B></td>
<td><B>Value</B></td>
</tr>
<%
String[] sessionNames = session.getValueNames();
if (sessionNames != null) {
for (int index = 0; index < sessionNames.length; index++) {
%>
<tr>
<td><%= sessionNames[index] %></td>
<td><%= session.getValue(sessionNames[index]) %></td>
</tr>
<%
}
}
%>
</table>
</center>
<p>
<form method="post" name="SessionServlet" action="SessionServlet.jsp">
<center>
<table border=0 cellspacing=2 cellpadding=5 width=400>
<th>Name to add/delete</th>
<th>Value</th>
<tr>
<td><input type="text" name="NameField"></td>
<td><input type="text" name="ValueField"></td>
</tr>
<tr>
<td colspan=2 align=center><input type="submit" value=" Add " name="AddValue"></td>
</tr>
<tr>
<td colspan=2 align=center><input type="submit" value="Delete" name="DeleteValue"></td>
</tr>
</table>
</center>
</form>
<p>
<font size=-1>Copyright (c) 1999 by BEA Systems, Inc. All Rights Reserved.
</font>
</font>
</body>
</html>