怎么在Java中使用TCP套接字實現(xiàn)一個多人聊天功能

本篇文章為大家展示了怎么在Java中使用TCP套接字實現(xiàn)一個多人聊天功能，內(nèi)容簡明扼要并且容易理解，絕對能使你眼前一亮，通過這篇文章的詳細介紹希望你能有所收獲。

Java可以用來干什么

Java主要應(yīng)用于：1. web開發(fā)；2. Android開發(fā)；3. 客戶端開發(fā)；4. 網(wǎng)頁開發(fā)；5. 企業(yè)級應(yīng)用開發(fā)；6. Java大數(shù)據(jù)開發(fā)；7.游戲開發(fā)等。

先創(chuàng)建一個服務(wù)端：

package interWebWriterEven2;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
/**
 * 服務(wù)端
 * @author
 *
 */
public class ServiceT {
    static ArrayList<Socket> list = new ArrayList<Socket>();
    public static void main(String[] args) {
        ServerSocket server;
        try {
            server = new ServerSocket(9999);
            while(true){
                Socket socket = server.accept();
                System.out.println(socket.getInetAddress().getHostName()+"連接成功。IP："+socket.getInetAddress().getHostAddress());
                list.add(socket);
                ServiceThreadT t =new ServiceThreadT(socket);
                t.start();
            }
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

接著是服務(wù)端的線程：

package interWebWriterEven2;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.Socket;
/**
 * 服務(wù)端線程
 * @author
 *
 */
public class ServiceThreadT extends Thread{
    private Socket socket;
    public Socket getSocket() {
        return socket;
    }
    public void setSocket(Socket socket) {
        this.socket = socket;
    }
    public ServiceThreadT(Socket socket) {
        super();
        this.socket = socket;
    }
    @Override
    public void run() {
        try {
            @SuppressWarnings("resource")
            BufferedWriter wFile = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("D://messagesT.txt",true)));
            BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            String strOut = "";
            String strIn = "";
            while(true){
                strIn = socket.getInetAddress().getHostName()+":"+br.readLine();
                strOut = strIn;
                wFile.write(strIn);
                wFile.newLine();
                wFile.flush();
                for (Socket soc : ServiceT.list) {
                    if(soc != socket){
                        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(soc.getOutputStream()));
                        bw.write(strOut);
                        System.out.println(strOut);
                        bw.newLine();
                        bw.flush();
                    }
                }
            }
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

然后是客戶端（應(yīng)用端）：

package interWebWriterEven2;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.Socket;
/**
 * 客戶端
 * @author
 *
 */
public class ClientT {
    public static void main(String[] args) {
        try {
            Socket socket = new Socket("127.0.0.1",9999);
            ClientThreadT t = new ClientThreadT(socket);
            t.start();
            BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            String strIn = "";
            while(true){
                strIn = br.readLine();
                System.out.println(strIn);
            }
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

最后是客戶端的線程：

package interWebWriterEven2;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.net.Socket;
import java.util.Scanner;
/**
 * 客戶端的線程
 * @author
 *
 */
public class ClientThreadT extends Thread{
    private Socket socket;
    public Socket getSocket() {
        return socket;
    }
    public void setSocket(Socket socket) {
        this.socket = socket;
    }
    public ClientThreadT(Socket socket) {
        super();
        this.socket = socket;
    }
    @Override
    public void run() {
        @SuppressWarnings("resource")
        Scanner sc = new Scanner(System.in);
        try {
            BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
            while(true){
                System.out.println();
                bw.write(sc.nextLine().trim());
                bw.newLine();
                bw.flush();
            }
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

上述內(nèi)容就是怎么在Java中使用TCP套接字實現(xiàn)一個多人聊天功能，你們學(xué)到知識或技能了嗎？如果還想學(xué)到更多技能或者豐富自己的知識儲備，歡迎關(guān)注億速云行業(yè)資訊頻道。