Good day, I am developing an android app to send textView value to a server made in Java netbeans, I followed a tutorial on YouTube [https://www.youtube.com/watch?v=29y4X65ZUwE ] however when I run the server first it does not send the data through. I am connected to the same Wi-Fi network as well.
EDIT: When I use the code System.out.println(ss.getInetAddress()); in my server class in Java, I get 0.0.0.0 as the ip address but I am connected to a wifi network.
Here is my AsyncTask class (written in android studio):
public class SendData extends AsyncTask<String, Void, Void> {
Socket s;
DataOutputStream dos;
PrintWriter pw;
@Override
protected Void doInBackground(String... voids) {
String number = voids[0];
try{
s = new Socket("196.248.139.178", 6000);
pw = new PrintWriter(s.getOutputStream());
pw.write(number);
pw.flush();
pw.close();
s.close();
}catch(IOException ioe){
ioe.printStackTrace();
}
return null;
}
}
Here is my MainActivity(called it the Orders class, written in android studio):
public class Orders extends AppCompatActivity {
Button send;
EditText orderNum;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_orders);
orderNum = findViewById(R.id.orderNum);
send = findViewById(R.id.send);
send.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
SendData numSender = new SendData();
numSender.execute(orderNum.getText().toString());
}
});
}
}
The following is my Server Code written in NetBeans, it includes a JFrame with a JTextArea to display to data sent from android phone:
public class OrderList extends javax.swing.JFrame {
static Socket s;
static ServerSocket ss;
static InputStreamReader isr;
static BufferedReader br;
static String numbers;
/**
* Creates new form OrderList
*/
public OrderList() {
initComponents();
}
public static void main(String args[]) {
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new OrderList().setVisible(true);
}
});
try{
ss = new ServerSocket(6000);
while(true){
s = ss.accept();
isr = new InputStreamReader(s.getInputStream());
br = new BufferedReader(isr);
numbers = br.readLine();
System.out.println(numbers);
// orderNumList is the text area where data is going to be set.
if(orderNumList.getText().equals("")){
orderNumList.setText(numbers);
}
else{
orderNumList.setText(orderNumList.getText()+ "\n" + numbers);
}
}
}catch(IOException e){
e.printStackTrace();
}
}
Any advice and help will be highly appreciated.
