8
Ho trovato un tutorial ben scritto here per la comunicazione client del server su Android. Funziona come un fascino. Ma è solo una modalità di comunicazione. Sto cercando di ascoltare la risposta del server nel client, ma non so dove sono sbagliato qui. Ecco il codice per il server in cui sto cercando di apportare modifiche.Comunicazione client TCP Server Android
Server
public class Server extends Activity {
private ServerSocket serverSocket;
Handler updateConversationHandler;
Thread serverThread = null;
private TextView text;
public static final int SERVERPORT = 8080;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
text = (TextView) findViewById(R.id.text2);
updateConversationHandler = new Handler();
this.serverThread = new Thread(new ServerThread());
this.serverThread.start();
}
@Override
protected void onStop() {
super.onStop();
try {
serverSocket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
class ServerThread implements Runnable {
public void run() {
Socket socket = null;
try {
serverSocket = new ServerSocket(SERVERPORT);
} catch (IOException e) {
e.printStackTrace();
}
while (!Thread.currentThread().isInterrupted()) {
try {
socket = serverSocket.accept();
CommunicationThread commThread = new CommunicationThread(socket);
new Thread(commThread).start();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
class CommunicationThread implements Runnable {
private Socket clientSocket;
private BufferedReader input;
public CommunicationThread(Socket clientSocket) {
this.clientSocket = clientSocket;
try {
this.input = new BufferedReader(new InputStreamReader(this.clientSocket.getInputStream()));
} catch (IOException e) {
e.printStackTrace();
}
}
public void run() {
while (!Thread.currentThread().isInterrupted()) {
try {
String read = input.readLine();
if (read == null){
Thread.currentThread().interrupt();
}else{
BufferedWriter out = new BufferedWriter(new OutputStreamWriter(clientSocket.getOutputStream()));
out.write("TstMsg");
updateConversationHandler.post(new updateUIThread(read));
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
class updateUIThread implements Runnable {
private String msg;
public updateUIThread(String str) {
this.msg = str;
}
@Override
public void run() {
text.setText("Client Says: "+ msg + new Date() + "\n");
}
}
}
client
public class Client extends Activity {
private Socket socket;
private static final int SERVERPORT = 8080;
private static final String SERVER_IP = "192.168.104.107";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
new Thread(new ClientThread()).start();
}
public void onClick(View view) {
try {
EditText et = (EditText) findViewById(R.id.EditText01);
String str = et.getText().toString();
PrintWriter out = new PrintWriter(new BufferedWriter(
new OutputStreamWriter(socket.getOutputStream())),
true);
out.println(str);
out.flush();
BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String read = in.readLine();
System.out.println("MSG:" + read);
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
}
class ClientThread implements Runnable {
@Override
public void run() {
try {
InetAddress serverAddr = InetAddress.getByName(SERVER_IP);
socket = new Socket(serverAddr, SERVERPORT);
} catch (UnknownHostException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
}
Aggiornamento
Quando client invia alcun messaggio al server il messaggio viene ricevuto dal server, ma quando il server invia la sua risposta
BufferedWriter out = new BufferedWriter(new OutputStreamWriter(clientSocket.getOutputStream()));
out.write("TstMsg");
e client
String read = in.readLine();
System.out.println("MSG:" + read);
E dose non ha ricevuto dal cliente o possiamo dire server di ascoltare i clienti messaggio ma client non. Ho aggiunto entrambe le autorizzazioni in manifest.
<uses-permission android:name="android.permission.INTERNET" >
</uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" >
</uses-permission>
Aggiornamento Dopo una lunga appendere viene questi errori.
11-28 18:35:45.786: E/GTalkService(292): connectionClosed: no XMPPConnection - That's strange!
11-28 18:35:48.806: D/ConnectivityService(148): handleInetConditionHoldEnd: net=1, condition=0, published condition=0
11-28 18:35:54.526: I/GTalkService/c(292): [[email protected]] connect: acct=1000000, state=CONNECTING
11-28 18:35:55.176: D/dalvikvm(1167): GC_CONCURRENT freed 495K, 9% free 6604K/7239K, paused 2ms+3ms
11-28 18:35:55.226: D/Finsky(1167): [1] 5.onFinished: Installation state replication succeeded.
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): Problem with socket or streams.
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): java.net.ConnectException: failed to connect to www.google-analytics.com/173.194.39.41 (port 80): connect failed: ETIMEDOUT (Connection timed out)
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): at libcore.io.IoBridge.connect(IoBridge.java:114)
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459)
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): at java.net.Socket.connect(Socket.java:842)
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:119)
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): at com.google.android.apps.analytics.t.run(Unknown Source)
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): at android.os.Handler.handleCallback(Handler.java:605)
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): at android.os.Handler.dispatchMessage(Handler.java:92)
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): at android.os.Looper.loop(Looper.java:137)
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): at android.os.HandlerThread.run(HandlerThread.java:60)
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): Caused by: libcore.io.ErrnoException: connect failed: ETIMEDOUT (Connection timed out)
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): at libcore.io.Posix.connect(Native Method)
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:85)
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): at libcore.io.IoBridge.connectErrno(IoBridge.java:127)
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): at libcore.io.IoBridge.connect(IoBridge.java:112)
11-28 18:37:18.276: W/GoogleAnalyticsTracker(349): ... 9 more
11-28 18:37:29.016: D/dalvikvm(349): GC_CONCURRENT freed 1258K, 35% free 8238K/12487K, paused 2ms+8ms
u hanno fornito il permesso di internet sia in progetto ??? –
Che cos'è, il tuo problema, spiegalo bene, stai dicendo che funziona come un incantesimo ma non so dov'è il problema –
grazie per l'interesse Ho aggiornato la domanda. – user934820