[Java] Kết nối máy server đến client qua socket trong java

Server:

CODE:

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package Socket;
import java.io.IOException;
import java.net.*;
import java.util.Scanner;
import java.io.*;
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;
public class Server {

    public static void main(String[]ds)   {
    try{
           ServerSocket svsocket = new ServerSocket(1234);
           Socket socket = svsocket.accept();
           System.out.print("đã kết nối với client");
          final BufferedReader read = new BufferedReader(new InputStreamReader(socket.getInputStream()));
          BufferedWriter write = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
         Thread T_read = new Thread(new Runnable()
         {
             @Override
             public void run (){
                 while(true)
                 try{
                     String mes ; 
                             mes= read.readLine();
                             if  (mes!=null&& !mes.isEmpty())
                             {
                                 System.out.println(mes);
                             }
                 }catch (IOException ex)
                 {
                     System.out.println(ex);
                 }
                     }
          });
                 T_read.start();
                 while(true){
                     System.out.println("cnttqn.com");
                     String mes=new Scanner(System.in).nextLine();
                             write.write(mes);
                             write.newLine();
                             write.flush();
                                     }}
                 catch(IOException ex)
                         {
                         System.out.println(ex);
                         }
    }
}


Client:

CODE:

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package Socket;
import java.io.IOException;
import java.net.*;
import java.util.Scanner;
import java.io.*;
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;
public class client {
    public static void main(String[]ds){
        
            try {
                Socket socket = new Socket("localhost",1234);
         final BufferedReader read = new BufferedReader(new InputStreamReader(socket.getInputStream()));
         BufferedWriter write = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
         Thread T_read = new Thread(new Runnable()
         {
             @Override
             public void run (){
                 while(true)
                 try{
                     String mes ; 
                             mes= read.readLine();
                             if  (mes!=null&& !mes.isEmpty())
                             {
                                 System.out.println(mes);
                             }
                 }catch (IOException ex)
                 {
                     System.out.println(ex);
                 }
                     }
          });
                 T_read.start();
                 while(true){
                     System.out.println("cntt");
                     String mes=new Scanner(System.in).nextLine();
                             write.write(mes);
                             write.newLine();
                             write.flush();
                                     }}
            catch(IOException ex){
           System.out.print(ex);
           }
  
}
}


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