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This article is about how to use Java to implement basic Tcp-based chat functions. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

The details are as follows:

In the most basic chat, the client and the server speak one sentence at a time, and the order is strictly specified.

Server side:

Import java.io.*;import java.net.*;public class ChatServer {public static void main (String [] args) {ServerSocket server = null; try {server = new ServerSocket (12138);} catch (IOException e) {System.out.println ("error" + e);} / / server = null; try {Socket ac = null / / ac = new Socket (); / / ac = null; ac = server.accept (); BufferedReader is = null; is = new BufferedReader (new InputStreamReader (ac.getInputStream (); BufferedReader dis = new BufferedReader (new InputStreamReader (System.in)); PrintWriter os = new PrintWriter (ac.getOutputStream ()); String line = null System.out.println ("clinent" + is.readLine ()); line = dis.readLine (); while (! line.equals ("bey")) {os.println (line); os.flush (); System.out.println ("server" + line); System.out.println ("client" + is.readLine ()) Line = dis.readLine ();} os.close (); dis.close (); is.close (); ac.close ();} catch (Exception e) {System.out.println ("error" + e);}

Client:

Public class ChatClient {public static void main (String [] args) {Socket client = null; try {client = new Socket ("127.0.0.1", 12138); BufferedReader dis = new BufferedReader (new InputStreamReader (System.in)); BufferedReader is = new BufferedReader (new InputStreamReader (client.getInputStream (); PrintWriter os = new PrintWriter (client.getOutputStream ()) String line = dis.readLine (); while (! line.equals ("bey")) {os.println (line); os.flush (); System.out.println ("client" + line); System.out.println ("server" + is.readLine ()); line = is.readLine () } os.close (); dis.close (); is.close (); client.close ();} catch (Exception e) {System.out.println ("error" + e);}

Both the client side and the server side use BufferedReader to write some consecutive strings and output them with PrintWriter.

Note: the parameter received by BufferedWriter needs to be a character data stream, so create an inputStreamReader, and the parameter of InputStreamReader is data flow.

It specifies that the order of writing is that the client writes first, then the server.

Be careful to close each data flow and port at the end of the loop.

Thank you for reading! This is the end of this article on "how to use Java to achieve basic chat functions based on Tcp". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it out for more people to see!

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