Example usage for java.io DataInputStream readUTF

Introduction

In this page you can find the example usage for java.io DataInputStream readUTF.

Prototype

public final String readUTF() throws IOException

Source Link

Document

See the general contract of the readUTF method of DataInput.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    Socket t = new Socket("127.0.0.1", 7);
    DataInputStream dis = new DataInputStream(t.getInputStream());
    PrintStream ps = new PrintStream(t.getOutputStream());
    ps.println("Hello");
    String str = dis.readUTF();
    if (str.equals("Hello"))
        System.out.println("Alive!");
    else/*  www.ja  va2 s .c o m*/
        System.out.println("Dead");
    t.close();
}

From source file:MainClass.java

public static void main(String[] args) throws IOException {
    DataOutputStream out2 = new DataOutputStream(new BufferedOutputStream(new FileOutputStream("Data.txt")));
    out2.writeDouble(3.14159);/*from   w w w .  jav  a  2s .co m*/
    out2.writeUTF("Square root of 2");
    out2.close();

    DataInputStream in5 = new DataInputStream(new BufferedInputStream(new FileInputStream("Data.txt")));

    System.out.println(in5.readDouble());
    System.out.println(in5.readUTF());
}

From source file:delete_tcp.java

public static void main(String ar[]) throws IOException {
    ServerSocket ss = new ServerSocket(9999);

    Socket s = ss.accept();/*  ww  w  .j  a va  2 s .c  om*/

    DataInputStream in = new DataInputStream(s.getInputStream());
    DataOutputStream out = new DataOutputStream(s.getOutputStream());

    String id = in.readUTF();

    ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");

    EmployeeJDBCTemplate employeeJDBCTemplate = (EmployeeJDBCTemplate) context.getBean("employeeJDBCTemplate");

    System.out.println("Deleting Records...");

    employeeJDBCTemplate.delete(Integer.parseInt(id));

    out.writeUTF("Success");

    s.close();

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    String host = "host";
    int port = 25;
    String from = "from@from.net";
    String toAddr = "to@to.net";

    Socket servSocket = new Socket(host, port);
    DataOutputStream os = new DataOutputStream(servSocket.getOutputStream());
    DataInputStream is = new DataInputStream(servSocket.getInputStream());

    if (servSocket != null && os != null && is != null) {
        os.writeBytes("HELO\r\n");
        os.writeBytes("MAIL From:" + from + " \r\n");
        os.writeBytes("RCPT To:" + toAddr + "\r\n");
        os.writeBytes("DATA\r\n");
        os.writeBytes("X-Mailer: Java\r\n");
        os.writeBytes(//from   w w  w.jav  a 2  s.  com
                "DATE: " + DateFormat.getDateInstance(DateFormat.FULL, Locale.US).format(new Date()) + "\r\n");
        os.writeBytes("From:" + from + "\r\n");
        os.writeBytes("To:" + toAddr + "\r\n");
    }

    os.writeBytes("Subject:\r\n");
    os.writeBytes("body\r\n");
    os.writeBytes("\r\n.\r\n");
    os.writeBytes("QUIT\r\n");
    String responseline;
    while ((responseline = is.readUTF()) != null) {
        if (responseline.indexOf("Ok") != -1)
            break;
    }
}

From source file:cacheservice.CacheServer.java

/**
 * @param args the command line arguments
 *///from w  ww .jav  a  2  s  .c  o  m
public static void main(String[] args) {
    // COMUNICACIN CON EL CLIENTE
    ServerSocket serverSocket;
    Socket socketCliente;
    DataInputStream in; //Flujo de datos de entrada
    DataOutputStream out; //Flujo de datos de salida
    String mensaje;
    int laTengoenCache = 0;

    //COMUNICACIN CON EL INDEX
    ServerSocket serverSocketIndex;
    Socket socketIndex;
    DataOutputStream outIndex;
    ObjectInputStream inIndex;
    String mensajeIndex;

    try {
        serverSocket = new ServerSocket(4444);
        System.out.print("SERVIDOR CACHE ACTIVO a la espera de peticiones");

        //MIENTRAS PERMANEZCA ACTIVO EL SERVIDOR CACHE ESPERAR? POR PETICIONES DE LOS CLIENTES
        while (true) {
            socketCliente = serverSocket.accept();
            in = new DataInputStream(socketCliente.getInputStream()); //Entrada de los mensajes del cliente
            mensaje = in.readUTF(); //Leo el mensaje enviado por el cliente

            System.out.println("\nHe recibido del cliente: " + mensaje); //Muestro el mensaje recibido por el cliente
            //int particionBuscada = seleccionarParticion(mensaje, tamanoCache, numeroParticiones); //Busco la particin
            //double tamanoParticion = Math.ceil( (double)tamanoCache / (double)numeroParticiones);

            //Thread hilo = new Hilo(mensaje,particionBuscada,cache.GetTable(),(int) tamanoParticion);
            //hilo.start();

            //RESPUESTA DEL SERVIDOR CACHE AL CLIENTE
            out = new DataOutputStream(socketCliente.getOutputStream());
            String respuesta = "Respuesta para " + mensaje;
            if (laTengoenCache == 1) {
                out.writeUTF(respuesta);
                System.out.println("\nTengo la respuesta. He respondido al cliente: " + respuesta);
            } else {
                out.writeUTF("miss");
                out.close();
                in.close();
                socketCliente.close();

                System.out.println("\nNo tengo la respuesta.");

                //LEER RESPUESTA DEL SERVIDOR INDEX
                serverSocketIndex = new ServerSocket(6666);
                socketIndex = serverSocketIndex.accept();
                inIndex = new ObjectInputStream(socketIndex.getInputStream());
                JSONObject mensajeRecibidoIndex = (JSONObject) inIndex.readObject();

                System.out.println("He recibido del SERVIDOR INDEX: " + mensajeRecibidoIndex);

                //outIndex.close();
                inIndex.close();
                socketIndex.close();

            }

        }
    } catch (Exception e) {
        System.out.print(e.getMessage());
    }
}

From source file:Main.java

public static String readString(DataInputStream in) throws IOException {
    return in.readUTF();
}

From source file:Main.java

public static String readNullableString(DataInputStream in) throws IOException {
    if (in.read() != 0) {
        return in.readUTF();
    } else {//from   w  w  w.  ja v  a 2 s  . c om
        return null;
    }
}

From source file:com.bigdata.dastor.db.filter.QueryPath.java

public static QueryPath deserialize(DataInputStream din) throws IOException {
    String cfName = din.readUTF();
    byte[] scName = ColumnSerializer.readName(din);
    byte[] cName = ColumnSerializer.readName(din);
    return new QueryPath(cfName.isEmpty() ? null : cfName, scName.length == 0 ? null : scName,
            cName.length == 0 ? null : cName);
}

From source file:ReadBinaryFile.java

private static Product readMovie(DataInputStream in) {
    String title = "";
    int year = 0;
    double price = 0.0;

    try {/*from w  w  w. ja  va  2  s.  c  o  m*/
        title = in.readUTF();
        year = in.readInt();
        price = in.readDouble();
    } catch (EOFException e) {
        return null;
    } catch (IOException e) {
        System.out.println("I/O Error");
        System.exit(0);
    }
    return new Product(title, year, price);
}

From source file:Main.java

private static String bytesToString(byte[] bytes) {
    if (bytes == null) {
        return null;
    }/*from   w w  w. ja v  a 2 s  .  c  o m*/
    ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
    DataInputStream dis = new DataInputStream(bais);
    String res = "";
    try {
        res = dis.readUTF();
    } catch (IOException ex) {
    } finally {
        try {
            dis.close();
            bais.close();
        } catch (IOException ex1) {
        }
        dis = null;
        bais = null;
    }
    return res;
}