Jetty example source code file (CookieDump.java)

This example Jetty source code file (CookieDump.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Jetty tags/keywords

action, age, cookie, cookie, dump, http, httpservletresponse, httpservletresponse, io, ioexception, name, request, response, servlet, servletexception, servletexception, string, string, util, value

The Jetty CookieDump.java source code

// ========================================================================
// Copyright 1996-2005 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// Licensed 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.
// ========================================================================

package com.acme;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import java.util.Enumeration;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;


/* ------------------------------------------------------------ */
/** Test Servlet Cookies.
 *
 * @author Greg Wilkins (gregw)
 */
public class CookieDump extends HttpServlet
{
    int redirectCount=0;

    /* ------------------------------------------------------------ */
    public void init(ServletConfig config)
         throws ServletException
    {
        super.init(config);        
    }

    /* ------------------------------------------------------------ */
    protected void handleForm(HttpServletRequest request,
                          HttpServletResponse response) 
    {
        String action = request.getParameter("Action");
        String name =  request.getParameter("Name");
        String value =  request.getParameter("Value");
        String age =  request.getParameter("Age");

        if (name!=null && name.length()>0)
        {
            Cookie cookie = new Cookie(name,value);
            if (age!=null && age.length()>0)
                cookie.setMaxAge(Integer.parseInt(age));
            response.addCookie(cookie);
        }
    }
    
    /* ------------------------------------------------------------ */
    public void doPost(HttpServletRequest request,
                       HttpServletResponse response) 
        throws ServletException, IOException
    {
        handleForm(request,response);
        String nextUrl = getURI(request)+"?R="+redirectCount++;
        String encodedUrl=response.encodeRedirectURL(nextUrl);
        response.sendRedirect(encodedUrl);
    }
        
    /* ------------------------------------------------------------ */
    public void doGet(HttpServletRequest request,
                      HttpServletResponse response) 
        throws ServletException, IOException
    {
        handleForm(request,response);
        
        response.setContentType("text/html");

        
        PrintWriter out = response.getWriter();
        out.println("<h1>Cookie Dump Servlet:");       
        
        Cookie[] cookies = request.getCookies();
        
        for (int i=0;cookies!=null && i<cookies.length;i++)
        {
            out.println("<b>"+cookies[i].getName()+"="+cookies[i].getValue()+"
");
        }
        
        out.println("<form action=\""+response.encodeURL(getURI(request))+"\" method=\"post\">"); 

        out.println("<b>Name:
");
        out.println("<b>Value:
");
        out.println("<b>Max-Age:
");
        out.println("<input type=\"submit\" name=\"Action\" value=\"Set\"/>");

    }

    /* ------------------------------------------------------------ */
    public String getServletInfo() {
        return "Session Dump Servlet";
    }

    /* ------------------------------------------------------------ */
    private String getURI(HttpServletRequest request)
    {
        String uri=(String)request.getAttribute("javax.servlet.forward.request_uri");
        if (uri==null)
            uri=request.getRequestURI();
        return uri;
    }
    
}