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我需要你的幫助！優化Java Socket發送Android到PC
因此，我在Android設備上獲取了該應用程序，其中我從加速度計獲取數據，並按下按鈕將此數據獲取到edittext，並在edittextes上設置偵聽器。
當它改變時，會有一個函數創建一個套接字，發送數據並關閉套接字。
然後，我在我的計算機上創建了一個服務器應用程序，在其中創建服務器套接字，並創建兩個線程，等待serversocket.accept()獲取數據並將其放入texbox。就那麼簡單。
我很高興我得到它的工作:-)但重點是，它不是很好。我相信整個交流是不好的，沒有優化。它可以很好地發送數據，但通常會凍結，然後解凍並快速發送所有以前的數據等等。
對於我的錯誤代碼，我很抱歉，但是有人可以對此好好看看，並提出我應該改變的內容，以及如何讓它更加流暢和穩定地工作？ :-(
這裏的客戶端代碼：
package com.test.klienttcp;
//import's...
public class Klient extends Activity implements SensorListener {
final String log = "Log";
EditText textOut;
EditText adres;
EditText test;
EditText gazuje;
TextView textIn;
TextView tekst;
TextView dziala;
String numer = null;
float wspk = 0; // wspolczynniki kalibracji
float wychylenietmp = 0;
float wychylenie = 0;
int tmp = 0;
int i = 0;
boolean wysylaj = false;
SensorManager sm = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
textOut = (EditText)findViewById(R.id.textout);
adres = (EditText)findViewById(R.id.adres);
gazuje = (EditText)findViewById(R.id.gazuje);
Button kalibracja = (Button)findViewById(R.id.kalibracja);
Button polacz = (Button)findViewById(R.id.polacz);
Button gaz = (Button)findViewById(R.id.gaz);
Button hamulec = (Button)findViewById(R.id.hamulec);
kalibracja.setOnClickListener(kalibracjaOnClickListener);
polacz.setOnClickListener(polaczOnClickListener);
gaz.setOnTouchListener(gazOnTouchListener);
hamulec.setOnTouchListener(hamulecOnTouchListener);
sm = (SensorManager) getSystemService(SENSOR_SERVICE);
//text listener steering
textOut.addTextChangedListener(new TextWatcher() {
public void afterTextChanged(Editable s) {
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
public void onTextChanged(CharSequence s, int start, int before, int count) {
if(wysylaj)
{
Wyslij();
}
}
});
//text listener for throttle
gazuje.addTextChangedListener(new TextWatcher() {
public void afterTextChanged(Editable s) {
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
public void onTextChanged(CharSequence s, int start, int before, int count) {
if(wysylaj)
{
Gaz();
}
}
});
}
Button.OnClickListener polaczOnClickListener
= new Button.OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
if(wysylaj==false)
{
wysylaj = true;
}
else
{
wysylaj = false;
}
}};
//throttle button handler
Button.OnTouchListener gazOnTouchListener
= new Button.OnTouchListener(){
@Override
public boolean onTouch(View arg0, MotionEvent event) {
// TODO Auto-generated method stub
if(event.getAction() == MotionEvent.ACTION_DOWN) {
gazuje.setText("1");
} else if (event.getAction() == MotionEvent.ACTION_UP) {
gazuje.setText("0");
}
return false;
}};
//brake button handler
Button.OnTouchListener hamulecOnTouchListener
= new Button.OnTouchListener(){
@Override
public boolean onTouch(View arg0, MotionEvent event) {
// TODO Auto-generated method stub
if(event.getAction() == MotionEvent.ACTION_DOWN) {
gazuje.setText("2");
} else if (event.getAction() == MotionEvent.ACTION_UP) {
gazuje.setText("0");
}
return false;
}};
//sensor handler
public void onSensorChanged(int sensor, float[] values) {
synchronized (this) {
if (sensor == SensorManager.SENSOR_ACCELEROMETER) {
wychylenie = values[0] * 10;
tmp = Math.round(wychylenie);
wychylenie = tmp/10;
if(wychylenie != wychylenietmp)
{
textOut.setText(Float.toString(wychylenie - wspk));
wychylenietmp = wychylenie;
}
}
}
}
public void onAccuracyChanged(int sensor, int accuracy) {
Log.d(log, "onAccuracyChanged: " + sensor + ", accuracy: " + accuracy);
}
@Override
protected void onResume() {
super.onResume();
sm.registerListener(this, SensorManager.SENSOR_ORIENTATION
| SensorManager.SENSOR_ACCELEROMETER,
SensorManager.SENSOR_DELAY_NORMAL);
}
@Override
protected void onStop() {
sm.unregisterListener(this);
super.onStop();
}
//callibration handler
Button.OnClickListener kalibracjaOnClickListener
= new Button.OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
try {
wspk = wychylenie;
} catch (Exception e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}};
// sending steering data
public void Wyslij()
{
Socket socket = null;
DataOutputStream dataOutputStream = null;
DataInputStream dataInputStream = null;
try {
numer = adres.getText().toString();
socket = new Socket(numer, 8888);
dataOutputStream = new DataOutputStream(socket.getOutputStream());
dataInputStream = new DataInputStream(socket.getInputStream());
dataOutputStream.writeUTF(textOut.getText().toString());
if(socket.isClosed())
{
test.setText("Socket zamkniety");
}
//textIn.setText(dataInputStream.readUTF());
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
finally{
if (socket != null){
try {
socket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (dataOutputStream != null){
try {
dataOutputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (dataInputStream != null){
try {
dataInputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
//sending throttle data
public void Gaz()
{
Socket socket = null;
DataOutputStream dataOutputStream = null;
DataInputStream dataInputStream = null;
try {
numer = adres.getText().toString();
socket = new Socket(numer, 8889);
dataOutputStream = new DataOutputStream(socket.getOutputStream());
dataInputStream = new DataInputStream(socket.getInputStream());
dataOutputStream.writeUTF(gazuje.getText().toString());
if(socket.isClosed())
{
test.setText("Socket zamkniety");
}
//textIn.setText(dataInputStream.readUTF());
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
finally{
if (socket != null){
try {
socket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (dataOutputStream != null){
try {
dataOutputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (dataInputStream != null){
try {
dataInputStream.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
而這裏的服務器代碼：
//import's...
public class Okno
{
public static float wychylenie;
public static String gaz="0";
public static float jedzie;
public static int skrecam, gazuje;
public static String wiadomosc="100";
private static int maxConnections=0, port=8888, portg=8889;
public static void main(String[] args)
{
skrecam = 0;
gazuje = 0;
Window ok = new Window();
ok.setDefaultCloseOperation(3);
ok.setVisible(true);
ok.setResizable(false);
ok.setTitle("Serwer TCP");
int i=0;
try{
Robot robot = new Robot();
Robot robotgaz = new Robot();
ServerSocket listener = new ServerSocket(port);
ServerSocket listenergaz = new ServerSocket(portg);
while((i++ < maxConnections) || (maxConnections == 0)){
//create thread for steering
if(skrecam == 0)
{
skrecam=1;
doComms conn_c= new doComms(listener);
Thread t = new Thread(conn_c);
t.start();
}
//create thread for throttle
if(gazuje == 0)
{
gazuje=1;
doCommsgaz conn_gaz= new doCommsgaz(listenergaz);
Thread tgaz = new Thread(conn_gaz);
tgaz.start();
}
ok.pole3.setText(wiadomosc);
ok.pole2.setText(gaz);
}
}
catch (AWTException e) {
e.printStackTrace();
}
catch (IOException ioe) {
//System.out.println("IOException on socket listen: " + ioe);
ioe.printStackTrace();
}
}
}
class doComms implements Runnable {
private Socket server;
private ServerSocket listener;
private String line,input;
doComms(ServerSocket listener) {
this.listener=listener;
}
public void run() {
input="";
try {
Socket server;
server = listener.accept();
// Get input from the client
DataInputStream in = new DataInputStream (server.getInputStream());
//PrintStream out = new PrintStream(server.getOutputStream());
Okno.wiadomosc = in.readUTF();
server.close();
Okno.skrecam=0;
} catch (IOException ioe) {
//System.out.println("IOException on socket listen: " + ioe);
ioe.printStackTrace();
}
}
}
class doCommsgaz implements Runnable {
private Socket server;
private ServerSocket listener;
private String line,input;
doCommsgaz(ServerSocket listener) {
this.listener=listener;
}
public void run() {
input="";
try {
Socket server;
server = listener.accept();
// Get input from the client
DataInputStream in = new DataInputStream (server.getInputStream());
//PrintStream out = new PrintStream(server.getOutputStream());
Okno.gaz = in.readUTF();
server.close();
Okno.gazuje=0;
} catch (IOException ioe) {
//System.out.println("IOException on socket listen: " + ioe);
ioe.printStackTrace();
}
}
}
class Window extends JFrame {
private JButton ustaw;
public JTextField pole1;
public JTextField pole2;
public JTextField pole3;
Window()
{
setSize(300,200);
getContentPane().setLayout(new GridLayout(4,1));
JPanel panel1 = new JPanel();
panel1.setLayout(new FlowLayout(1));
getContentPane().add(panel1);
pole1 = new JTextField(15);
panel1.add(pole1);
JPanel panel2 = new JPanel();
panel2.setLayout(new FlowLayout(1));
getContentPane().add(panel2);
pole2 = new JTextField(15);
panel2.add(pole2);
JPanel panel3 = new JPanel();
panel3.setLayout(new FlowLayout(1));
getContentPane().add(panel3);
pole3 = new JTextField(15);
panel3.add(pole3);
JPanel panel4 = new JPanel();
panel4.setLayout(new FlowLayout(1));
getContentPane().add(panel4);
ustaw = new JButton("Ustaw");
panel4.add(ustaw);
//action button handler
ustaw.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent zdarz){
try{
}
catch(Exception wyjatek){}
pole1.setText("costam");
}
});
}
}
再次，比較遺憾的是不優化，難以閱讀的代碼，但請，如果有人知道什麼會更好，請回復。
非常感謝！
感謝您的關注！當然我會檢查並使用AsyncTask，因爲它看起來很有用。但是，它真的能解決我的問題嗎？我的意思是，沒有火箭科學 - 我有很少的數據，需要發送它，我希望它實時發送，沒有堵塞，但我的技能，我不能。 – Boro 2011-05-28 18:04:03