/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import java.util.Enumeration;
import java.util.ResourceBundle;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.servlet.http.HttpSession;
import util.HTMLFilter;
/**
* Example servlet showing request headers
*
* @author James Duncan Davidson <duncan@eng.sun.com>
*/
public class SessionExample
extends HttpServlet {
private static final long serialVersionUID = 1L;
@Override
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
{
ResourceBundle rb = ResourceBundle.getBundle(
"LocalStrings",request.getLocale());
response.setContentType(
"text/html");
response.setCharacterEncoding(
"UTF-8");
PrintWriter out = response.getWriter();
out.println(
"<!DOCTYPE html><html>");
out.println(
"<head>");
out.println(
"<meta charset=\"UTF-8\
" />");
String title = rb.getString(
"sessions.title");
out.println(
"<title>" + title +
"</title>");
out.println(
"</head>");
out.println(
"<body bgcolor=\"white\
">");
// img stuff not req'd for source code HTML showing
// relative links everywhere!
// XXX
// making these absolute till we work out the
// addition of a PathInfo issue
out.println(
"<a href=\"../sessions.html\
">");
out.println(
"<img src=\"../images/code.gif\
" height=24 " +
"width=24 align=right border=0 alt=\"view code\
"></a>");
out.println(
"<a href=\"../index.html\
">");
out.println(
"<img src=\"../images/
return.gif\
" height=24 " +
"width=24 align=right border=0 alt=\"return\
"></a>");
out.println(
"<h3>" + title +
"</h3>");
HttpSession session = request.getSession(
true);
out.println(rb.getString(
"sessions.id") +
" " + session.getId());
out.println(
"<br>");
out.println(rb.getString(
"sessions.created") +
" ");
out.println(
new Date(session.getCreationTime()) +
"<br>");
out.println(rb.getString(
"sessions.lastaccessed") +
" ");
out.println(
new Date(session.getLastAccessedTime()));
String dataName = request.getParameter(
"dataname");
String dataValue = request.getParameter(
"datavalue");
if (dataName !=
null && dataValue !=
null) {
session.setAttribute(dataName, dataValue);
}
out.println(
"<P>");
out.println(rb.getString(
"sessions.data") +
"<br>");
Enumeration<String> names = session.getAttributeNames();
while (names.hasMoreElements()) {
String name = names.nextElement();
String value = session.getAttribute(name).toString();
out.println(HTMLFilter.filter(name) +
" = "
+ HTMLFilter.filter(value) +
"<br>");
}
out.println(
"<P>");
out.print(
"<form action=\"");
out.print(response.encodeURL(
"SessionExample"));
out.print(
"\" ");
out.println(
"method=POST>");
out.println(rb.getString(
"sessions.dataname"));
out.println(
"<input type=text size=20 name=dataname>");
out.println(
"<br>");
out.println(rb.getString(
"sessions.datavalue"));
out.println(
"<input type=text size=20 name=datavalue>");
out.println(
"<br>");
out.println(
"<input type=submit>");
out.println(
"</form>");
out.println(
"<P>GET based form:<br>");
out.print(
"<form action=\"");
out.print(response.encodeURL(
"SessionExample"));
out.print(
"\" ");
out.println(
"method=GET>");
out.println(rb.getString(
"sessions.dataname"));
out.println(
"<input type=text size=20 name=dataname>");
out.println(
"<br>");
out.println(rb.getString(
"sessions.datavalue"));
out.println(
"<input type=text size=20 name=datavalue>");
out.println(
"<br>");
out.println(
"<input type=submit>");
out.println(
"</form>");
out.print(
"<p><a href=\"");
out.print(HTMLFilter.filter(response.encodeURL(
"SessionExample?dataname=foo&datavalue=bar">)));
out.println(
"\" >URL encoded </a>
");
out.println(
"</body>");
out.println(
"</html>");
}
@Override
public void doPost(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException
{
doGet(request, response);
}
}