java服务器和客户端_JAVA的服务器和客户端怎么做

╰半橙微兮° 2022-11-05 10:55 192阅读 0赞

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给你个例子。。

KKMultiServer.java

import java.net.\*;

import java.io.\*;

public class KKMultiServer

public static void main(String\[\] args) throws IOException

ServerSocket serverSocket = null;

boolean listening = true;

try \{

serverSocket = new ServerSocket(4444);

\} catch (IOException e) \{

System.err.println("Could not listen on port: 4444.");

System.exit(-1);

while (listening)

new KKMultiServerThread(serverSocket.accept()).start();

serverSocket.close();

KKMultiServerThread.java

import java.net.\*;

import java.io.\*;

public class KKMultiServerThread extends Thread

private Socket socket = null;

public KKMultiServerThread(Socket socket) \{

super("KKMultiServerThread");

this.socket = socket;

public void run()

try \{

PrintWriter out = new PrintWriter(socket.getOutputStream(), true);

BufferedReader in = new BufferedReader( new InputStreamReader(

socket.getInputStream()));

String inputLine, outputLine;

KnockKnockProtocol kkp = new KnockKnockProtocol();

outputLine = kkp.processInput(null);

out.println(outputLine);

while ((inputLine = in.readLine()) != null)

outputLine = kkp.processInput(inputLine);

out.println(outputLine);

if (outputLine.equals("Bye"))

break;

out.close();

in.close();

socket.close();

\} catch (IOException e) \{

e.printStackTrace();

KnockKnockClient.java

import java.io.\*;

import java.net.\*;

public class KnockKnockClient

public static void main(String\[\] args) throws IOException

Socket kkSocket = null;

PrintWriter out = null;

BufferedReader in = null;

try \{

kkSocket = new Socket("hostname", 4444);

out = new PrintWriter(kkSocket.getOutputStream(), true);

in = new BufferedReader(new InputStreamReader(kkSocket.getInputStream()));

catch (UnknownHostException e) \{

System.err.println("Don't know about host: taranis.");

System.exit(1);

catch (IOException e) \{

System.err.println("Couldn't get I/O for the connection to: biao.");

System.exit(1);

BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));

String fromServer;

String fromUser;

while ((fromServer = in.readLine()) != null)

System.out.println("Server: " + fromServer);

if (fromServer.equals("Bye."))

break;

fromUser = stdIn.readLine();

if (fromUser != null) \{

System.out.println("Client: " + fromUser);

out.println(fromUser);

out.close();

in.close();

stdIn.close();

kkSocket.close();

KnockKnockProtocol.java

import java.net.\*;

import java.io.\*;

public class KnockKnockProtocol

private static final int WAITING = 0;

private static final int SENTKNOCKKNOCK = 1;

private static final int SENTCLUE = 2;

private static final int ANOTHER = 3;

private static final int NUMJOKES = 5;

private int state = WAITING;

private int currentJoke = 0;

private String\[\] clues = \{ "Turnip", "Little Old Lady", "Atch", "Who", "Who" \};

private String\[\] answers = \{ "Turnip the heat, it's cold in here!",

"I didn't know you could yodel!",

"Bless you!",

"Is there an owl in here?",

"Is there an echo in here?" \};

public String processInput(String theInput)

String theOutput = null;

if (state == WAITING) \{

theOutput = "Knock! Knock!";

state = SENTKNOCKKNOCK;

else if (state == SENTKNOCKKNOCK) \{

if (theInput.equalsIgnoreCase("Who's there?")) \{

theOutput = clues\[currentJoke\];

state = SENTCLUE;

else \{

theOutput = "You're supposed to say \\"Who's there?\\"! " +

"Try again. Knock! Knock!";

else if (state == SENTCLUE) \{

if (theInput.equalsIgnoreCase(clues\[currentJoke\] + " who?")) \{

theOutput = answers\[currentJoke\] + " Want another? (y/n)";

state = ANOTHER;

\} else \{

theOutput = "You're supposed to say \\"" + clues\[currentJoke\] + " who?\\"" +

"! Try again. Knock! Knock!";

state = SENTKNOCKKNOCK;

else if (state == ANOTHER) \{

if (theInput.equalsIgnoreCase("y")) \{

theOutput = "Knock! Knock!";

if (currentJoke == (NUMJOKES - 1))

currentJoke = 0;

else

currentJoke++;

state = SENTKNOCKKNOCK;

else \{

theOutput = "Bye.";

state = WAITING;

return theOutput;

客户端和服务器分别是那个类不用我告诉你了撒32313133353236313431303231363533e4b893e5b19e31333236373834

![2Q==][2Q]

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