如何在JAVA中创建支持长连接的HttpServer？

import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;

import java.io.IOException;
import java.io.OutputStream;
import java.net.InetSocketAddress;

public class LongConnectionHttpServer {

    public static void main(String[] args) throws IOException {
        // 创建HttpServer实例，绑定指定端口
        HttpServer server = HttpServer.create(new InetSocketAddress(8080), 0);
        
        // 创建一个上下文路径为"/"的HttpHandler处理器
        server.createContext("/", new MyHandler());
        
        // 设置服务器的线程池，可以根据实际需求进行调整
        server.setExecutor(null); 
        
        // 启动HttpServer
        server.start();
        
        System.out.println("Server started on port 8080.");
    }

    static class MyHandler implements HttpHandler {
        @Override
        public void handle(HttpExchange exchange) throws IOException {
            // 设置响应头，指定支持长连接
            exchange.getResponseHeaders().set("Connection", "keep-alive");
            
            // 设置响应体内容
            String response = "Hello, World!";
            exchange.sendResponseHeaders(200, response.length());
            
            // 发送响应体内容
            OutputStream outputStream = exchange.getResponseBody();
            outputStream.write(response.getBytes());
            outputStream.close();
        }
    }
}