我要一份用java网络编程写的点对点的两人聊天程序(TCP和UDP)?

Posted 2023-03-09

参考技术A Server端：
import java.io.*;
import java.net.*;
import java.applet.Applet;
public class TalkServer
public static void main(String args[])
try
ServerSocket server=null;
try
server=new ServerSocket(4700);
catch(Exception e)
System.out.println("can not listen to:"+e);

Socket socket=null;
try
socket=server.accept();
catch(Exception e)
System.out.println("Error."+e);

String line;
BufferedReader is=new BufferedReader(new InputStreamReader(socket.getInputStream()));
PrintWriter os=new PrintWriter(socket.getOutputStream());
BufferedReader sin=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Client:"+is.readLine());
line=sin.readLine();
while(!line.equals("bye"))
os.println(line);
os.flush();
System.out.println("Server:"+line);
System.out.println("Client:"+is.readLine());
line=sin.readLine();

os.close();
is.close();
socket.close();
server.close();
catch(Exception e)
System.out.println("Error:"+e);




Client端：
import java.io.*;
import java.net.*;
public class TalkClient
public static void main(String args[])
try
Socket socket=new Socket("127.0.0.1",4700);
BufferedReader sin=new BufferedReader(new InputStreamReader(System.in));
PrintWriter os=new PrintWriter(socket.getOutputStream());
BufferedReader is=new BufferedReader(new InputStreamReader(socket.getInputStream()));
String readline;
readline=sin.readLine(); //从系统标准输入读入一字符串
while(!readline.equals("bye"))
os.println(readline);
os.flush();
System.out.println("Client:"+readline);
System.out.println("Server:"+is.readLine());
readline=sin.readLine(); //从系统标准输入读入一字符串

os.close(); //关闭Socket输出流
is.close(); //关闭Socket输入流
socket.close(); //关闭Socket
catch(Exception e)
System.out.println("Error"+e); //出错，则打印出错信息