Example usage for java.net URLConnection setUseCaches

List of usage examples for java.net URLConnection setUseCaches

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Introduction

In this page you can find the example usage for java.net URLConnection setUseCaches.

Prototype

public void setUseCaches(boolean usecaches)

Source Link

Document

Sets the value of the useCaches field of this URLConnection to the specified value.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    URL u = new URL("http://127.0.0.1/test.gif");
    URLConnection uc = u.openConnection();
    uc.setUseCaches(false);
    long timestamp = uc.getLastModified();

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    URL url = new URL("http://localhost:8080/postedresults.jsp");
    URLConnection conn = url.openConnection();
    conn.setDoInput(true);/* w  w  w.j  ava  2s  . c o  m*/
    conn.setDoOutput(true);
    conn.setUseCaches(false);
    conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

    DataOutputStream out = new DataOutputStream(conn.getOutputStream());
    String content = "CONTENT=HELLO JSP !&ONEMORECONTENT =HELLO POST !";

    out.writeBytes(content);
    out.flush();
    out.close();

    DataInputStream in = new DataInputStream(conn.getInputStream());
    String str;
    while (null != ((str = in.readUTF()))) {
        System.out.println(str);
    }
    in.close();
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    String sessionCookie = null;/*from  w w  w  . j  a  v  a  2s .  c  o  m*/
    URL url = new java.net.URL("http://127.0.0.1/yourServlet");
    URLConnection con = url.openConnection();
    if (sessionCookie != null) {
        con.setRequestProperty("cookie", sessionCookie);
    }
    con.setUseCaches(false);
    con.setDoOutput(true);
    con.setDoInput(true);
    ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
    DataOutputStream out = new DataOutputStream(byteOut);
    out.flush();
    byte buf[] = byteOut.toByteArray();
    con.setRequestProperty("Content-type", "application/octet-stream");
    con.setRequestProperty("Content-length", "" + buf.length);
    DataOutputStream dataOut = new DataOutputStream(con.getOutputStream());
    dataOut.write(buf);
    dataOut.flush();
    dataOut.close();
    DataInputStream in = new DataInputStream(con.getInputStream());
    int count = in.readInt();
    in.close();
    if (sessionCookie == null) {
        String cookie = con.getHeaderField("set-cookie");
        if (cookie != null) {
            sessionCookie = parseCookie(cookie);
            System.out.println("Setting session ID=" + sessionCookie);
        }
    }

    System.out.println(count);
}

From source file:MainClass.java

public static void main(String[] args) {
    URL u;//from ww  w.  j a  va 2  s .  co m
    URLConnection uc;
    try {
        u = new URL("http://www.java2s.com");
        try {
            uc = u.openConnection();
            if (uc.getUseCaches()) {
                uc.setUseCaches(false);
            }
        } catch (IOException e) {
            System.err.println(e);
        }
    } catch (MalformedURLException e) {
        System.err.println(e);
    }

}

From source file:com.adobe.aem.demo.Analytics.java

public static void main(String[] args) {

    String hostname = null;/* w  w  w .  jav  a  2 s .  c  o m*/
    String url = null;
    String eventfile = null;

    // Command line options for this tool
    Options options = new Options();
    options.addOption("h", true, "Hostname");
    options.addOption("u", true, "Url");
    options.addOption("f", true, "Event data file");
    CommandLineParser parser = new BasicParser();
    try {
        CommandLine cmd = parser.parse(options, args);

        if (cmd.hasOption("u")) {
            url = cmd.getOptionValue("u");
        }

        if (cmd.hasOption("f")) {
            eventfile = cmd.getOptionValue("f");
        }

        if (cmd.hasOption("h")) {
            hostname = cmd.getOptionValue("h");
        }

        if (eventfile == null || hostname == null || url == null) {
            System.out.println("Command line parameters: -h hostname -u url -f path_to_XML_file");
            System.exit(-1);
        }

    } catch (ParseException ex) {

        logger.error(ex.getMessage());

    }

    URLConnection urlConn = null;
    DataOutputStream printout = null;
    BufferedReader input = null;
    String u = "http://" + hostname + "/" + url;
    String tmp = null;
    try {

        URL myurl = new URL(u);
        urlConn = myurl.openConnection();
        urlConn.setDoInput(true);
        urlConn.setDoOutput(true);
        urlConn.setUseCaches(false);
        urlConn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

        printout = new DataOutputStream(urlConn.getOutputStream());

        String xml = readFile(eventfile, StandardCharsets.UTF_8);
        printout.writeBytes(xml);
        printout.flush();
        printout.close();

        input = new BufferedReader(new InputStreamReader(urlConn.getInputStream()));

        logger.debug(xml);
        while (null != ((tmp = input.readLine()))) {
            logger.debug(tmp);
        }
        printout.close();
        input.close();

    } catch (Exception ex) {

        logger.error(ex.getMessage());

    }

}

From source file:com.bytelightning.opensource.pokerface.PokerFaceApp.java

public static void main(String[] args) {
    if (JavaVersionAsFloat() < (1.8f - Float.MIN_VALUE)) {
        System.err.println("PokerFace requires at least Java v8 to run.");
        return;//from   w w w .  j av a2  s.  c o m
    }
    // Configure the command line options parser
    Options options = new Options();
    options.addOption("h", false, "help");
    options.addOption("listen", true, "(http,https,secure,tls,ssl,CertAlias)=Address:Port for https.");
    options.addOption("keystore", true, "Filepath for PokerFace certificate keystore.");
    options.addOption("storepass", true, "The store password of the keystore.");
    options.addOption("keypass", true, "The key password of the keystore.");
    options.addOption("target", true, "Remote Target requestPattern=targetUri"); // NOTE: targetUri may contain user-info and if so will be interpreted as the alias of a cert to be presented to the remote target
    options.addOption("servercpu", true, "Number of cores the server should use.");
    options.addOption("targetcpu", true, "Number of cores the http targets should use.");
    options.addOption("trustany", false, "Ignore certificate identity errors from target servers.");
    options.addOption("files", true, "Filepath to a directory of static files.");
    options.addOption("config", true, "Path for XML Configuration file.");
    options.addOption("scripts", true, "Filepath for root scripts directory.");
    options.addOption("library", true, "JavaScript library to load into global context.");
    options.addOption("watch", false, "Dynamically watch scripts directory for changes.");
    options.addOption("dynamicTargetScripting", false,
            "WARNING! This option allows scripts to redirect requests to *any* other remote server.");

    CommandLine cmdLine = null;
    // parse the command line.
    try {
        CommandLineParser parser = new PosixParser();
        cmdLine = parser.parse(options, args);
        if (args.length == 0 || cmdLine.hasOption('h')) {
            HelpFormatter formatter = new HelpFormatter();
            formatter.setWidth(120);
            formatter.printHelp(PokerFaceApp.class.getSimpleName(), options);
            return;
        }
    } catch (ParseException exp) {
        System.err.println("Parsing failed.  Reason: " + exp.getMessage());
        return;
    } catch (Exception ex) {
        ex.printStackTrace(System.err);
        return;
    }

    XMLConfiguration config = new XMLConfiguration();
    try {
        if (cmdLine.hasOption("config")) {
            Path tmp = Utils.MakePath(cmdLine.getOptionValue("config"));
            if (!Files.exists(tmp))
                throw new FileNotFoundException("Configuration file does not exist.");
            if (Files.isDirectory(tmp))
                throw new FileNotFoundException("'config' path is not a file.");
            // This is a bit of a pain, but but let's make sure we have a valid configuration file before we actually try to use it.
            config.setEntityResolver(new DefaultEntityResolver() {
                @Override
                public InputSource resolveEntity(String publicId, String systemId) throws SAXException {
                    InputSource retVal = super.resolveEntity(publicId, systemId);
                    if ((retVal == null) && (systemId != null)) {
                        try {
                            URL entityURL;
                            if (systemId.endsWith("/PokerFace_v1Config.xsd"))
                                entityURL = PokerFaceApp.class.getResource("/PokerFace_v1Config.xsd");
                            else
                                entityURL = new URL(systemId);
                            URLConnection connection = entityURL.openConnection();
                            connection.setUseCaches(false);
                            InputStream stream = connection.getInputStream();
                            retVal = new InputSource(stream);
                            retVal.setSystemId(entityURL.toExternalForm());
                        } catch (Throwable e) {
                            return retVal;
                        }
                    }
                    return retVal;
                }

            });
            config.setSchemaValidation(true);
            config.setURL(tmp.toUri().toURL());
            config.load();
            if (cmdLine.hasOption("listen"))
                System.out.println("IGNORING 'listen' option because a configuration file was supplied.");
            if (cmdLine.hasOption("target"))
                System.out.println("IGNORING 'target' option(s) because a configuration file was supplied.");
            if (cmdLine.hasOption("scripts"))
                System.out.println("IGNORING 'scripts' option because a configuration file was supplied.");
            if (cmdLine.hasOption("library"))
                System.out.println("IGNORING 'library' option(s) because a configuration file was supplied.");
        } else {
            String[] serverStrs;
            String[] addr = { null };
            String[] port = { null };
            serverStrs = cmdLine.getOptionValues("listen");
            if (serverStrs == null)
                throw new MissingOptionException("No listening addresses specified specified");
            for (int i = 0; i < serverStrs.length; i++) {
                String addrStr;
                String alias = null;
                String protocol = null;
                Boolean https = null;
                int addrPos = serverStrs[i].indexOf('=');
                if (addrPos >= 0) {
                    if (addrPos < 2)
                        throw new IllegalArgumentException("Invalid http argument.");
                    else if (addrPos + 1 >= serverStrs[i].length())
                        throw new IllegalArgumentException("Invalid http argument.");
                    addrStr = serverStrs[i].substring(addrPos + 1, serverStrs[i].length());
                    String[] types = serverStrs[i].substring(0, addrPos).split(",");
                    for (String type : types) {
                        if (type.equalsIgnoreCase("http"))
                            break;
                        else if (type.equalsIgnoreCase("https") || type.equalsIgnoreCase("secure"))
                            https = true;
                        else if (type.equalsIgnoreCase("tls") || type.equalsIgnoreCase("ssl"))
                            protocol = type.toUpperCase();
                        else
                            alias = type;
                    }
                } else
                    addrStr = serverStrs[i];
                ParseAddressString(addrStr, addr, port, alias != null ? 443 : 80);
                config.addProperty("server.listen(" + i + ")[@address]", addr[0]);
                config.addProperty("server.listen(" + i + ")[@port]", port[0]);
                if (alias != null)
                    config.addProperty("server.listen(" + i + ")[@alias]", alias);
                if (protocol != null)
                    config.addProperty("server.listen(" + i + ")[@protocol]", protocol);
                if (https != null)
                    config.addProperty("server.listen(" + i + ")[@secure]", https);
            }
            String servercpu = cmdLine.getOptionValue("servercpu");
            if (servercpu != null)
                config.setProperty("server[@cpu]", servercpu);
            String clientcpu = cmdLine.getOptionValue("targetcpu");
            if (clientcpu != null)
                config.setProperty("targets[@cpu]", clientcpu);

            // Configure static files
            if (cmdLine.hasOption("files")) {
                Path tmp = Utils.MakePath(cmdLine.getOptionValue("files"));
                if (!Files.exists(tmp))
                    throw new FileNotFoundException("Files directory does not exist.");
                if (!Files.isDirectory(tmp))
                    throw new FileNotFoundException("'files' path is not a directory.");
                config.setProperty("files.rootDirectory", tmp.toAbsolutePath().toUri());
            }

            // Configure scripting
            if (cmdLine.hasOption("scripts")) {
                Path tmp = Utils.MakePath(cmdLine.getOptionValue("scripts"));
                if (!Files.exists(tmp))
                    throw new FileNotFoundException("Scripts directory does not exist.");
                if (!Files.isDirectory(tmp))
                    throw new FileNotFoundException("'scripts' path is not a directory.");
                config.setProperty("scripts.rootDirectory", tmp.toAbsolutePath().toUri());
                config.setProperty("scripts.dynamicWatch", cmdLine.hasOption("watch"));
                String[] libraries = cmdLine.getOptionValues("library");
                if (libraries != null) {
                    for (int i = 0; i < libraries.length; i++) {
                        Path lib = Utils.MakePath(libraries[i]);
                        if (!Files.exists(lib))
                            throw new FileNotFoundException(
                                    "Script library does not exist [" + libraries[i] + "].");
                        if (Files.isDirectory(lib))
                            throw new FileNotFoundException(
                                    "Script library is not a file [" + libraries[i] + "].");
                        config.setProperty("scripts.library(" + i + ")", lib.toAbsolutePath().toUri());
                    }
                }
            } else if (cmdLine.hasOption("watch"))
                System.out.println("IGNORING 'watch' option as no 'scripts' directory was specified.");
            else if (cmdLine.hasOption("library"))
                System.out.println("IGNORING 'library' option as no 'scripts' directory was specified.");
        }
        String keyStorePath = cmdLine.getOptionValue("keystore");
        if (keyStorePath != null)
            config.setProperty("keystore", keyStorePath);
        String keypass = cmdLine.getOptionValue("keypass");
        if (keypass != null)
            config.setProperty("keypass", keypass);
        String storepass = cmdLine.getOptionValue("storepass");
        if (storepass != null)
            config.setProperty("storepass", keypass);
        if (cmdLine.hasOption("trustany"))
            config.setProperty("targets[@trustAny]", true);

        config.setProperty("scripts.dynamicTargetScripting", cmdLine.hasOption("dynamicTargetScripting"));

        String[] targetStrs = cmdLine.getOptionValues("target");
        if (targetStrs != null) {
            for (int i = 0; i < targetStrs.length; i++) {
                int uriPos = targetStrs[i].indexOf('=');
                if (uriPos < 2)
                    throw new IllegalArgumentException("Invalid target argument.");
                else if (uriPos + 1 >= targetStrs[i].length())
                    throw new IllegalArgumentException("Invalid target argument.");
                String patternStr = targetStrs[i].substring(0, uriPos);
                String urlStr = targetStrs[i].substring(uriPos + 1, targetStrs[i].length());
                String alias;
                try {
                    URL url = new URL(urlStr);
                    alias = url.getUserInfo();
                    String scheme = url.getProtocol();
                    if ((!"http".equals(scheme)) && (!"https".equals(scheme)))
                        throw new IllegalArgumentException("Invalid target uri scheme.");
                    int port = url.getPort();
                    if (port < 0)
                        port = url.getDefaultPort();
                    urlStr = scheme + "://" + url.getHost() + ":" + port + url.getPath();
                    String ref = url.getRef();
                    if (ref != null)
                        urlStr += "#" + ref;
                } catch (MalformedURLException ex) {
                    throw new IllegalArgumentException("Malformed target uri");
                }
                config.addProperty("targets.target(" + i + ")[@pattern]", patternStr);
                config.addProperty("targets.target(" + i + ")[@url]", urlStr);
                if (alias != null)
                    config.addProperty("targets.target(" + i + ")[@alias]", alias);
            }
        }
        //         config.save(System.out);
    } catch (Throwable e) {
        e.printStackTrace(System.err);
        return;
    }
    // If we get here, we have a possibly valid configuration.
    try {
        final PokerFace p = new PokerFace();
        p.config(config);
        if (p.start()) {
            PokerFace.Logger.warn("Started!");
            Runtime.getRuntime().addShutdownHook(new Thread() {
                public void run() {
                    try {
                        PokerFace.Logger.warn("Initiating shutdown...");
                        p.stop();
                        PokerFace.Logger.warn("Shutdown completed!");
                    } catch (Throwable e) {
                        PokerFace.Logger.error("Failed to shutdown cleanly!");
                        e.printStackTrace(System.err);
                    }
                }
            });
        } else {
            PokerFace.Logger.error("Failed to start!");
            System.exit(-1);
        }
    } catch (Throwable e) {
        e.printStackTrace(System.err);
    }
}

From source file:Main.java

private static InputStream OpenHttpConnection(String strURL, Boolean cache) throws IOException {
    InputStream inputStream = null;

    try {/*from   ww  w.  j  a  va 2  s.c  om*/
        URL url = new URL(strURL);
        URLConnection conn = url.openConnection();
        conn.setUseCaches(cache);
        HttpURLConnection httpConn = (HttpURLConnection) conn;
        httpConn.setRequestMethod("GET");
        httpConn.connect();

        if (httpConn.getResponseCode() == HttpURLConnection.HTTP_OK)
            inputStream = httpConn.getInputStream();

    } catch (Exception ex) {
    }
    return inputStream;
}

From source file:org.anyframe.oden.bundle.auth.AuthTest.java

private static URLConnection init(String url) throws MalformedURLException, IOException {
    URLConnection con = new URL(url).openConnection();
    con.setUseCaches(false);
    con.setDoOutput(true);/*from  w  w w .j a  v a 2 s . c om*/
    con.setDoInput(true);
    con.setConnectTimeout(TIMEOUT);
    con.setRequestProperty("Authorization", "Basic " + encode("oden", "oden0"));
    return con;
}

From source file:de.ifgi.mosia.wpswfs.Util.java

public static Set<String> readConfigFilePerLine(String resourcePath) throws IOException {
    URL resURL = Util.class.getResource(resourcePath);
    URLConnection resConn = resURL.openConnection();
    resConn.setUseCaches(false);
    InputStream contents = resConn.getInputStream();

    Scanner sc = new Scanner(contents);
    Set<String> result = new HashSet<String>();
    String line;/*from w w w . jav  a  2s.c o  m*/
    while (sc.hasNext()) {
        line = sc.nextLine();
        if (line != null && !line.isEmpty() && !line.startsWith("#")) {
            result.add(line.trim());
        }
    }
    sc.close();

    return result;
}

From source file:org.ajax4jsf.resource.util.URLToStreamHelper.java

/**
 * Returns {@link InputStream} corresponding to argument {@link URL} 
 * but with caching disabled//from   w w w . jav a2  s.co m
 * 
 * @param url {@link URL} of the resource
 * @return {@link InputStream} instance or <code>null</code>
 * @throws IOException
 */
public static final InputStream urlToStream(URL url) throws IOException {
    if (url != null) {
        URLConnection connection = url.openConnection();
        try {
            connection.setUseCaches(false);
        } catch (IllegalArgumentException e) {
            log.error(e.getLocalizedMessage(), e);
        }

        return connection.getInputStream();
    } else {
        return null;
    }
}