import java.io.*; import java.net.*; public class ClienteTCP { private InetAddress server; private Socket sockConn; private InputStream rStream; private OutputStream wStream; public ClienteTCP(String host, int port) throws UnknownHostException, IOException { server = InetAddress.getByName(host); sockConn = new Socket(server,port); rStream = sockConn.getInputStream(); wStream = sockConn.getOutputStream(); System.out.println("Conexao: " + server.getHostAddress() + ":" + port); } public void sendRequest(String request) throws IOException { wStream.write(request.getBytes()); wStream.flush(); System.out.println("Requisicao: " + request); } public void showAnswer() throws IOException { System.out.println("Resposta: "); do System.out.print((char) rStream.read()); while (rStream.available() > 0); } public void close() throws IOException { sockConn.close(); } public static void main(String[] args) { try { if (args.length < 2) { System.err.println("Uso: java ClienteTCP host port"); System.err.println(" java ClienteTCP host port \"request\""); System.exit(1); } ClienteTCP ch = new ClienteTCP(args[0],Integer.parseInt(args[1])); if (args.length > 2) ch.sendRequest(args[2] + "\n"); ch.showAnswer(); ch.close(); } catch (Exception e) { System.err.println(e); } } }