在使用Java进行网络编程时，什么情况下应该考虑使用Netty这样的框架？

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.*;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;

public class NettyServer {
    public static void main(String[] args) throws InterruptedException {
        // 事件循环组
        EventLoopGroup bossGroup = new NioEventLoopGroup(1);
        EventLoopGroup workerGroup = new NioEventLoopGroup();

        try {
            // 设置启动引导
            ServerBootstrap serverBootstrap = new ServerBootstrap();
            serverBootstrap.group(bossGroup, workerGroup)
                           .channel(NioServerSocketChannel.class)  // 使用 NIO 的服务器通道
                           .childHandler(new ChannelInitializer<SocketChannel>() {
                               @Override
                               protected void initChannel(SocketChannel ch) throws Exception {
                                   ch.pipeline().addLast(new SimpleChannelInboundHandler<String>() {
                                       @Override
                                       protected void channelRead0(ChannelHandlerContext ctx, String msg) throws Exception {
                                           // 处理客户端请求
                                           System.out.println("Received message: " + msg);
                                           ctx.writeAndFlush("Hello from Netty!");
                                       }
                                   });
                               }
                           })
                           .option(ChannelOption.SO_BACKLOG, 128)    // 设置 TCP 缓冲区
                           .childOption(ChannelOption.SO_KEEPALIVE, true);  // 保持连接活跃

            // 启动服务器并绑定端口
            ChannelFuture f = serverBootstrap.bind(8080).sync();
            f.channel().closeFuture().sync();
        } finally {
            workerGroup.shutdownGracefully();
            bossGroup.shutdownGracefully();
        }
    }
}