Java实现socket编程入门

╰+哭是因爲堅強的太久メ 2022-11-18 04:59 183阅读 0赞

package bio;
    
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.OutputStream;
    import java.net.ServerSocket;
    import java.net.Socket;
    import java.util.Scanner;
    
    public class TCPserver { 
        public static void main(String[] args) throws IOException { 
            ServerSocket ss = new ServerSocket(9999);
            while(true){ 
                Socket socket = ss.accept();
                InputStream in = socket.getInputStream();
                byte[] bytes = new byte[1024];
                in.read(bytes);
    
                String cip = socket.getInetAddress().getHostAddress();
                System.out.println(cip + " say: " + new String(bytes).trim());
    
                OutputStream out = socket.getOutputStream();
                Scanner sc = new Scanner(System.in);
                System.out.print("请输入：");
                out.write(sc.nextLine().getBytes());
                socket.close();
            }
        }
    }

package bio;
    
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.OutputStream;
    import java.net.Socket;
    import java.util.Scanner;
    
    public class TcpClient { 
        public static void main(String[] args) throws IOException { 
            while (true){ 
                Socket socket = new Socket("127.0.0.1",9999);
                OutputStream out = socket.getOutputStream();
                System.out.print("请输入：");
                Scanner sc = new Scanner(System.in);
                out.write(sc.nextLine().getBytes());
                InputStream in = socket.getInputStream();
                byte[] bytes = new byte[1024];
                in.read(bytes);
                System.out.println(socket.getInetAddress().getHostAddress() + " : " + new String(bytes).trim());
                socket.close();
    
            }
        }
    }