如何使用Java获取活动DFS服务器

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

public class DFSClient {
    public static void main(String[] args) {
        String dfsServerIP = "DFS服务器IP地址";
        int dfsServerPort = 1234; // DFS服务器端口号

        try {
            // 创建与DFS服务器的连接
            Socket socket = new Socket(dfsServerIP, dfsServerPort);

            // 发送请求
            PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
            out.println("GET_FILE_LIST"); // 发送获取文件列表的请求

            // 接收响应
            BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            String response = in.readLine(); // 读取响应

            // 处理响应
            System.out.println("文件列表：");
            System.out.println(response);

            // 关闭连接
            socket.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}