java - Connection Timed out while connecting two systems on same network via sockets in java

Question

I have a code which has 2 classes, SocketDemo and ServerSocketDemo, when the client (SocketDemo) tried to connect to the server (ServerSocketDemo), it waits for a few seconds and then throws

java.net.ConnectionException : Connection timed out

その特定の時点で、サーバーは接続が確立されていることを示しますが、クライアントは接続をリセットし、例外をスローします

最初に、ソケットを介して同じ接続で 2 つの異なるシステムを接続することは可能ですか?

このコードフラグメントを検討して助けてください!

クライアントコード

import java.net.*;
import java.io.*;
class SocketDemo
{
    public static void main(String...arga) throws Exception
    {
        Socket          s = null;
        PrintWriter    pw = null;
        BufferedReader br = null;
        System.out.println("Enter a number one digit");
        int i=(System.in.read()-48); // will read only one character
        System.out.println("Input number is "+i);
        try
        {
            s  = new Socket("192.168.1.5",40000);
            System.out.println(s);
            pw = new PrintWriter(s.getOutputStream());
            System.out.println(pw);
            br = new BufferedReader(new InputStreamReader(s.getInputStream()));
            System.out.println(br);
            System.out.println("Connection established, streams created");
        }
        catch(Exception e)
        {
            System.out.println("Exception in Client "+e);
        }
        pw.println(i);
        pw.flush();
        System.out.println("Data sent to server");
        String str = br.readLine();
        System.out.println("The square of "+i+" is "+str);
    }
}

サーバーコード:

import java.io.*;
import java.net.*;
class ServerSocketDemo
{
    public static void main(String...args)
    {
        ServerSocket ss=null;
        PrintWriter    pw = null;
        BufferedReader br = null;
        int i=0;
        try
        {
            ss = new ServerSocket(40000);
        }
        catch(Exception e)
        {
            System.out.println("Exception in Server while creating connection"+e);
            e.printStackTrace();
        }
        System.out.print("Server is ready");
        while (true)
        {
            System.out.println ("  Waiting for connection....");
            Socket s=null;
            try
            {
                System.out.println("connection "+s+ "\n printwriter "+pw+"\n bufferedreader "+br);
                s = ss.accept();
                System.out.println("Connection established with client");
                pw = new PrintWriter(s.getOutputStream());
                br = new BufferedReader(new InputStreamReader(s.getInputStream()));
                System.out.println("connection "+s+ "\n printwriter "+pw+"\n bufferedreader "+br);
                i = new Integer(br.readLine());
                System.out.println("i is "+i);
            }
            catch(Exception e)
            {
                System.out.println("Exception in Server "+e);
                e.printStackTrace();
            }
            System.out.println("Connection established with "+s);
            i*=i;
            pw.println(i);
            try
            {
                pw.close();
                br.close();
            }
            catch(Exception e)
            {
                System.out.println("Exception while closing streams");
            }
        }
    }
}