Java服务器客户端交互

我有一个可以承载多个客户端的服务器，还有一个可以连接的客户端。我试图能够选择一个客户，并说，通过PrintWriter向他们发送消息。下面的代码仅供参考，甚至可能不需要使用。我只是想知道是否有一种方法可以将消息发送给特定的客户机而不是所有的客户机。我不知道从哪里开始。。我可以做服务器到客户端和客户端到服务器，但我希望服务器到客户端的通信发送到特定的客户端

客户：

    import java.net.Socket;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;

import javax.swing.JOptionPane;

public class Main{
    private static Socket socket;
    private static PrintWriter printWriter;
    private static String inputLine;
    private static Thread thread;

    public static void main(String[] args) {
        // System.out.println("What is the computer's IP address?");
        String Ip_addr = JOptionPane
                .showInputDialog("Enter the IP number of the server to connect: ");
        String IP = Ip_addr;
        while (true) {

            try {
                System.out.println("Client running...");
                socket = new Socket(IP, 8080);
                BufferedReader bufferedReader = new BufferedReader(
                        new InputStreamReader(socket.getInputStream()));
                while ((inputLine = bufferedReader.readLine()) != null) {
                    System.out.println(inputLine);
                    JOptionPane.showMessageDialog(null, inputLine);
                }
            } catch (Exception e) {

            }


        }
    }
}

服务器：

import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;
import java.awt.Desktop;
import java.io.BufferedReader;
import java.io.File;
import java.io.InputStreamReader;
import java.io.IOException;
import java.io.PrintWriter;
public class Main
{
    private static ServerSocket serverSocket;
    private static Socket clientSocket;
    private static BufferedReader bufferedReader;
    private static BufferedReader threadReader;
    private static String inputLine;
    private static Thread thread;
    private static PrintWriter printWriter;
    public static void main(String[] args) throws IOException
    {
        Thread cmd = new Thread(new Commands());
        cmd.start();
        while(ClientThread.Clients < 100) {
            Scanner scan = new Scanner(System.in);
            try
            {
                serverSocket = new ServerSocket(8080);
                clientSocket = serverSocket.accept();
                ClientThread.Clients += 1;

                //Desktop.getDesktop().open(new File("C:/Users/Chris/Desktop/Test.txt")); // Opens notepad on Windows.
                bufferedReader = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));

                printWriter = new PrintWriter(clientSocket.getOutputStream(),true);
            }
            catch(IOException e)
            {
                System.out.println(e.getMessage());
            }
            try{
                thread = new Thread(new ClientThread(clientSocket));
                thread.start();
            }catch(Exception e){System.out.println("Error 103 = failed to create thread."); break;}
            try{
                serverSocket.close();
            }catch(Exception e){System.out.println("Error 105 = failed to close socket.");}

        }


    }
}

多个客户端的线程：

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.util.StringTokenizer;

public class ClientThread extends Thread{
    static Socket socket;
    BufferedReader in;
    PrintWriter out;
    String username;
    public static int Clients = 0;
    static String[] Names = new String[100];
    char EOF = (char)0x00;
    public ClientThread(Socket s){
        socket = s;
    }
    public void run(){
        try{
            in = (new BufferedReader(new InputStreamReader(socket.getInputStream())));
            out = new PrintWriter(socket.getOutputStream());
            System.out.println("Client Connected from " + socket.getInetAddress() + ", " + Clients + " connected.");
            Names[Clients-1] = "Client" + (Clients) + " " + socket.getInetAddress();
            in.readLine();
            Thread.sleep(100);
        }catch(Exception e){
            System.out.println(("Client Disconected from " + socket.getInetAddress()));
            removeClient((socket.getInetAddress()).toString());

        }


    }
    private void removeClient(String Inet) {
        int Location;
        String[] Storage = new String[Clients];
        int j = 0;
        for(int i = 0; i < Clients; i++) {
            String line = Names[i];
            StringTokenizer st = new StringTokenizer(line);
            String Name = st.nextToken();
            String IP = st.nextToken();
            if(IP.equalsIgnoreCase(Inet)) {
                //System.out.println("Client removed..");
            }else {
                Storage[j] = Names[i];
                j++;
            }
        }


        for(int i = 0; i < Clients; i++) {
            Storage[i] = Names[i];
        }

        Clients--;

    }
}

---

非常感谢您提出的任何建议。

欢迎光临。请阅读和，了解有关提出适当问题的提示。提示：把你所有的代码都扔掉并要求别人修改是不合适的。试着自己解决这个问题，然后当你遇到一些你不理解的问题时，发布一组最少的代码来演示这个问题并提出一个特定的问题。顺便说一句，你的代码有很多问题。首先，如果第一个try块抛出异常，您可以打印该异常，然后继续执行accept调用。我在问题中添加了一点内容，谢谢，我将通过阅读如何实现良好的客户机-服务器交互来解决此问题。@MouseEvent谢谢，那么我应该为我的客户机使用arraylist吗？