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/* Angelehnt an Kurose/Ross Computernetzwerke (bis 5e Java, ab 6e Python) */
package socket;
import java.io.*; import java.net.*;
class Server2 { public static void main(String argv[]) throws Exception { int port = 36037;
ServerSocket serverSocket = new ServerSocket(port);
String message; String modifiedMessage; System.out.println("Server2 gestartet. Warte auf eingehende Requests..."); Socket connectionSocket = serverSocket.accept(); while (true) {
BufferedReader inFromClient = new BufferedReader(new InputStreamReader(connectionSocket.getInputStream())); DataOutputStream outToClient = new DataOutputStream(connectionSocket.getOutputStream());
// Try/Catch hinzugef�gt, nachdem bei Einsatz mit Amazon AWS (Healthcheck des ELB) message null war
try { message = inFromClient.readLine(); if (message != null) { System.out.println("Request von Client2 " + connectionSocket.getInetAddress() + ":" + connectionSocket.getPort() + " empfangen. Erzeuge und sende Antwort...");
if (message.equals("exit")) { break; }
modifiedMessage = message.toUpperCase() + '\n'; outToClient.writeBytes(modifiedMessage); } } catch (IOException ioe) { ioe.printStackTrace(); } } connectionSocket.close(); serverSocket.close(); } }
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