Solved messwerte praktikum

VAR-UDP/src/var/sockets/udp/messwerte/MesswertClient.java

@@ -1,22 +1,46 @@
 package var.sockets.udp.messwerte;
 
+import java.net.DatagramPacket;
+import java.net.DatagramSocket;
+import java.net.InetAddress;
 import java.util.Date;
 import java.util.Random;
 
 public class MesswertClient {
+    private static final String HOST = "localhost";
+    private static final int PORT = 4711;
+    private static final int BUFSIZE = 512;
+    private static final int TIMEOUT = 2000;
 
-  public static void main(String[] args) {
-    Random rg = new Random();
-    try {
-      // ...
-      while (true) {
-        String jetzt = (new Date()).toString();
-        String messung = Double.toString(rg.nextDouble() * 100.0);
-        // ...
-        Thread.sleep(5000);
-      }
-    } catch (Exception e) {
-      System.err.println(e);
+    public static void main(String[] args) {
+        Random rg = new Random();
+        try (DatagramSocket socket = new DatagramSocket()) {
+            socket.setSoTimeout(TIMEOUT);
+
+            InetAddress iaddr = InetAddress.getByName(HOST);
+            DatagramPacket packetOut = new DatagramPacket(new byte[0], 0, iaddr, PORT);
+
+            while (true) {
+                StringBuilder sb = new StringBuilder();
+
+                sb.append(iaddr).append(":");
+                sb.append(PORT).append(" ");
+
+                String jetzt = (new Date()).toString();
+
+                String messung = Double.toString(rg.nextDouble() * 100.0);
+
+                String data = jetzt + " " + messung;
+
+                packetOut.setData(data.getBytes());
+                packetOut.setLength(data.length());
+
+                socket.send(packetOut);
+
+                Thread.sleep(5000);
+           }
+        } catch (Exception e) {
+            System.err.println(e);
+        }
     }
-  }
 }

VAR-UDP/src/var/sockets/udp/messwerte/MesswertServer.java

@@ -1,8 +1,37 @@
 package var.sockets.udp.messwerte;
 
-public class MesswertServer {
+import java.io.IOException;
+import java.net.DatagramPacket;
+import java.net.DatagramSocket;
+import java.net.SocketException;
 
-  public static void main(String[] args) {
-    // TODO Auto-generated method stub
-  }
+public class MesswertServer {
+    private static final int PORT = 4711;
+    private static final int BUFSIZE = 512;
+
+    public static void main(String[] args) {
+        try (DatagramSocket socket = new DatagramSocket(PORT)) {
+            DatagramPacket packetIn = new DatagramPacket(new byte[BUFSIZE], BUFSIZE);
+
+            System.out.println("Messwerte Server gestartet ...");
+
+            while(true) {
+                socket.receive(packetIn);
+
+                String data = packetIn.getAddress().getHostAddress();
+
+                data += ":" + packetIn.getPort();
+
+                data += " " + new String(packetIn.getData(), 0, packetIn.getLength());
+
+                System.out.println(data);
+            }
+
+        }
+        catch(SocketException e) {
+            System.err.println(e);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
 }