我正在为Android编写一个简单的客户端服务器，它在我重新启动客户端之前一直工作。然后什么都没发生服务器连续运行，客户端必须连接和断开连接。任何一些帮助都会非常有用。谢谢。
服务器
public class MyService extends Service {
String line = null;
String temp_comand = null;
Socket client;
public static String SERVERIP = "10.0.2.15";
public final static int DISPATCH_KEY_FROM_IME = 1011;
public static final int SERVERPORT = 8080;
private Handler handler = new Handler();
private ServerSocket serverSocket;
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
Log.i("SERVISE", "STARTED");
SERVERIP = getLocalIpAddress();
Thread fst = new Thread(new ServerThread());
fst.start();
}
public class ServerThread implements Runnable {
public void run() {
try {
if (SERVERIP != null) {
handler.post(new Runnable() {
@Override
public void run() {
Log.v("wlan0", Utils.getMACAddress("wlan0"));
Log.v("eth0", Utils.getMACAddress("eth0"));
Log.v("<< IP4 >>", Utils.getIPAddress(true));
Log.v("<< IP6 >>", Utils.getIPAddress(false));
}
});
serverSocket = new ServerSocket(SERVERPORT);
while (true) {
// LISTEN FOR INCOMING CLIENTS
client = serverSocket.accept();
handler.post(new Runnable() {
@Override
public void run() {
}
});
try {
BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream()));
while ((line = in.readLine()) != null) {
Log.d("ServerActivity", line);
handler.post(new Runnable() {
@Override
public void run() {
if (line.equals("next")){
simulateKey(22);
}
if (line.equals("beack")){
simulateKey(21);
}
if (line.equals("up")){
simulateKey(19);
}
if (line.equals("down")){
simulateKey(20);
}
if (line.equals("ok")){
simulateKey(23);
}
if (line.equals("power")){
simulateKey(170);
}
if (line.equals("exit")){
simulateKey(4);
}
if (line.equals("vol_m")){
simulateKey(25);
}
if (line.equals("vol_up")){
simulateKey(24);
}
if (line.equals("menu")){
simulateKey(82);
}
if (line.equals("left")){
simulateKey(88);
}
if (line.equals("right")){
simulateKey(87);
}
if (line.equals("home")){
simulateKey(3);
}
if (line.equals("close")){
simulateKey(4);
}
// Log.d("ServerActivity", line);
}
});
}
break;
} catch (Exception e) {
handler.post(new Runnable() {
@Override
public void run() {
}
});
e.printStackTrace();
}
}
} else {
handler.post(new Runnable() {
@Override
public void run() {
}
});
}
} catch (Exception e) {
handler.post(new Runnable() {
@Override
public void run() {
}
});
e.printStackTrace();
}
}
}
private String getLocalIpAddress() {
try {
for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
NetworkInterface intf = en.nextElement();
for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
InetAddress inetAddress = enumIpAddr.nextElement();
if (!inetAddress.isLoopbackAddress()) { return inetAddress.getHostAddress().toString(); }
}
}
} catch (SocketException ex) {
Log.e("ServerActivity", ex.toString());
}
return null;
}
public void simulateKey(final int KeyCode) {
new Thread() {
@Override
public void run() {
try {
Instrumentation inst = new Instrumentation();
inst.sendKeyDownUpSync(KeyCode);
} catch (Exception e) {
Log.e("Exception when sendKeyDownUpSync", e.toString());
}
}
}.start();
}
}
客户端
public class ClientActivity extends Activity {
String comand = "Жду команду";
private Button right, left, up, dn, menu, pow, min, plus, ok, sw_l, sw_r, close, home;
private String serverIpAddress = "";
String serverIp;
Socket socket;
private boolean connected = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
setContentView(R.layout.client);
final WifiManager manager = (WifiManager) super.getSystemService(WIFI_SERVICE);
final DhcpInfo dhcp = manager.getDhcpInfo();
serverIp = Formatter.formatIpAddress(dhcp.gateway);
if (!connected) {
serverIpAddress = serverIp;
if (!serverIpAddress.equals("")) {
Thread cThread = new Thread(new ClientThread());
cThread.start();
}
}
right = (Button) findViewById(R.id.btn_right);
left = (Button) findViewById(R.id.btn_left);
up= (Button) findViewById(R.id.btn_up);
dn= (Button) findViewById(R.id.btn_dn);
menu= (Button) findViewById(R.id.btn_menu);
pow= (Button) findViewById(R.id.btn_pow);
min= (Button) findViewById(R.id.btn_min);
plus= (Button) findViewById(R.id.btn_plus);
ok= (Button) findViewById(R.id.btn_ok);
sw_l= (Button) findViewById(R.id.btn_sw_left);
sw_r= (Button) findViewById(R.id.btn_sw_rig);
close = (Button) findViewById(R.id.btn_close);
home= (Button) findViewById(R.id.btn_home);
Log.e("KeyEvent.KEYCODE_HOME", String.valueOf(KeyEvent.KEYCODE_HOME));
right.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
comand = "next";
}});
left.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
comand = "beack";
}});
up.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
comand = "up";
}});
dn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
comand = "down";
}});
menu.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
comand = "menu";
}});
pow.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
comand = "power";
}});
min.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
comand = "vol_m";
}});
plus.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
comand = "vol_up";
}});
ok.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
comand = "ok";
}});
sw_l.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
comand = "left";
}});
sw_r.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
comand = "right";
}});
home.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
comand = "home";
}});
close.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
comand = "close";
}});
}
public class ClientThread implements Runnable {
public void run() {
try {
InetAddress serverAddr = InetAddress.getByName(serverIpAddress);
Log.d("ClientActivity", "C: Connecting...");
socket = new Socket(serverAddr, 8080);
connected = true;
while (connected) {
try {
PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket
.getOutputStream())), true);
if(out.checkError())
{Log.d("ClientActivity", "Error transmitting data");
throw new Exception("Error transmitting data.");
}
if (comand.equals("next")){
out.println(comand);
comand = "Жду";
}
if (comand.equals("beack")){
out.println(comand);
comand = "Жду";
}
if (comand.equals("up")){
out.println(comand);
comand = "Жду";
}
if (comand.equals("down")){
out.println(comand);
comand = "Жду";
}
if (comand.equals("ok")){
out.println(comand);
comand = "Жду";
}
if (comand.equals("power")){
out.println(comand);
comand = "Жду";
}
if (comand.equals("exit")){
out.println(comand);
comand = "Жду";
}
if (comand.equals("vol_m")){
out.println(comand);
comand = "Жду";
}
if (comand.equals("vol_up")){
out.println(comand);
comand = "Жду";
}
if (comand.equals("menu")){
out.println(comand);
comand = "Жду";
}
if (comand.equals("left")){
out.println(comand);
comand = "Жду";
}
if (comand.equals("right")){
out.println(comand);
comand = "Жду";
}
if (comand.equals("home")){
out.println(comand);
comand = "Жду";
}
if (comand.equals("close")){
out.println(comand);
comand = "Жду";
}
} catch (Exception e) {
Log.e("ClientActivity", "S: Error", e);
}
}
socket.close();
Log.d("ClientActivity", "C: Closed.");
} catch (Exception e) {
Log.e("ClientActivity", "C: Error", e);
connected = false;
}
}
}
protected String wifiIpAddress(Context context) {
WifiManager wifiManager = (WifiManager) context.getSystemService(WIFI_SERVICE);
int ipAddress = wifiManager.getConnectionInfo().getIpAddress();
// Convert little-endian to big-endianif needed
if (ByteOrder.nativeOrder().equals(ByteOrder.LITTLE_ENDIAN)) {
ipAddress = Integer.reverseBytes(ipAddress);
}
byte[] ipByteArray = BigInteger.valueOf(ipAddress).toByteArray();
String ipAddressString;
try {
ipAddressString = InetAddress.getByAddress(ipByteArray).getHostAddress();
} catch (UnknownHostException ex) {
Log.e("WIFIIP", "Unable to get host address.");
ipAddressString = null;
}
return ipAddressString;
}
}
答案 0 :(得分：0)
如果客户端没有断开连接，则服务器停留在此循环中：while ((line = in.readLine()) != null)等待并等待下一行。同时没有其他客户端可以连接。