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Java example source code file (LocalHostCookie.java)

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

Learn more about this Java project at its project page.

Java - Java tags/keywords

content\-type, get, inetsocketaddress, ioexception, june, list, localhostcookie, mycookiehandler, net, network, override, runtimeexception, server, string, test, threading, threads, url, util

The LocalHostCookie.java Java example source code

/*
 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */


import com.sun.net.httpserver.*;
import java.io.IOException;
import java.io.OutputStream;
import java.net.*;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Executors;

/*
 * @test
 * @bug 7169142
 * @summary CookieHandler does not work with localhost
 * @run main/othervm LocalHostCookie
 */
public class LocalHostCookie {

    public static void main(String[] args) throws Exception {
        new LocalHostCookie().runTest();
    }

    public void runTest() throws Exception {
        Server s = null;
        try {
            s = new Server();
            s.startServer();
            URL url = new URL("http","localhost", s.getPort(), "/");
            HttpURLConnection urlConnection = (HttpURLConnection)url.openConnection();
            urlConnection.setRequestMethod("GET");
            urlConnection.setDoOutput(true);
            urlConnection.connect();
            urlConnection.getInputStream();

            CookieHandler cookieHandler = CookieHandler.getDefault();
            if (cookieHandler == null) {
                cookieHandler = new java.net.CookieManager();
                CookieHandler.setDefault(cookieHandler);
            }
            cookieHandler.put(urlConnection.getURL().toURI(),
                    urlConnection.getHeaderFields());
            Map<String, List map =
                    cookieHandler.get(urlConnection.getURL().toURI(),
                    urlConnection.getHeaderFields());
            if (map.containsKey("Cookie")) {
                List<String> list = map.get("Cookie");
                // name-value list will be empty if ".local" is not appended
                if (list == null || list.size() ==  0) {
                    throw new RuntimeException("Test failed!");
                }
            }
        } finally {
            if (s != null) {
                s.stopServer();
            }
        }
    }

    class Server {
        HttpServer server;

        public void startServer() {
            InetSocketAddress addr = new InetSocketAddress(0);
            try {
                server = HttpServer.create(addr, 0);
            } catch (IOException ioe) {
                throw new RuntimeException("Server could not be created");
            }

            server.createContext("/", new MyCookieHandler());
            server.start();
        }

        public int getPort() {
            return server.getAddress().getPort();
        }

        public void stopServer() {
            if (server != null) {
                server.stop(0);
            }
        }
    }

    class MyCookieHandler implements HttpHandler {

        @Override
        public void handle(HttpExchange exchange) throws IOException {
            String requestMethod = exchange.getRequestMethod();
            if (requestMethod.equalsIgnoreCase("GET")){
                Headers responseHeaders = exchange.getResponseHeaders();
                responseHeaders.set("Content-Type", "text/plain");
                responseHeaders.set("Date", "June 13th 2012");
                // No domain value set
                responseHeaders.set("Set-Cookie2", "name=value");
                exchange.sendResponseHeaders(200, 0);
                OutputStream os = exchange.getResponseBody();
                String str = "This is what the server sent!";
                os.write(str.getBytes());
                os.flush();
                os.close();
            }
        }
    }
}

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