java中的java.net.ServerSocket类

// Java Program to implement ServerSocket class
// Server Side
// Importing required libraries
import java.io.*;
import java.net.*;
// Main class
public class MyServer {
    // Main driver method
    public static void main(String[] args)
    {
        // Try block to check for exceptions
        try {
            // Creating an object of ServerSocket class
            // in the main() method  for socket connection
            ServerSocket ss = new ServerSocket(6666);
            // Establishing a connection
            Socket soc = ss.accept();
            // Invoking input stream via getInputStream()
            // method by creating DataInputStream class
            // object
            DataInputStream dis
                = new DataInputStream(s.getInputStream());
            String str = (String)dis.readUTF();
            // Display the string on the console
            System.out.println("message= " + str);
            // Lastly close the socket using standard close
            // method to release memory resources
            ss.close();
        }
        // Catch block to handle the exceptions
        catch (Exception e) {
            // Display the exception on the console
            System.out.println(e);
        }
    }
}


// Java Program to implement ServerSocket class
// Client - side
// Importing required libraries
import java.io.*;
import java.net.*;
// Main class
public class MyClient {
    // Main driver method
    public static void main(String[] args)
    {
        // Try block to check if exception occurs
        try {
            // Creating Socket class object and
            // initializing Socket
            Socket soc = new Socket("localhost", 6666);
            DataOutputStream d = new DataOutputStream(
                soc.getOutputStream());
            // Message to be displayed
            d.writeUTF("Hello GFG Readers!");
            // Flushing out internal buffers,
            // optimizing for better performance
            d.flush();
            // Closing the connections
            // Closing DataOutputStream
            d.close();
            // Closing socket
            soc.close();
        }
        // Catch block to handle exceptions
        catch (Exception e) {
            // Print the exception on the console
            System.out.println(e);
        }
    }
}