rust实现UDP服务器

use std::net::UdpSocket;

use std::io::{self, Read, Write};

fn main() -> io::Result<()> {

// 创建UDP套接字

let socket = UdpSocket::bind("127.0.0.1:8080")?;

// 初始化缓冲区

let mut buffer = [0; 1024];

loop {

// 等待数据包

let (number_of_bytes, sender_address) = socket.recv_from(&mut buffer)?;

// 解析数据包

let data = &buffer[..number_of_bytes];

// 处理数据（这里简单地将接收到的数据发送回客户端）

let response = b"Hello, UDP client!";

socket.send_to(&response, &sender_address)?;

// 打印接收到的数据

println!("Received message: {}", String::from_utf8_lossy(data));

}

}