我在Rust中编写了一个基本的TCP服务器,但我无法从同一网络上的其他计算机访问它。这不是网络问题,因为我也编写了类似的Python TCP服务器,测试客户端能够成功连接到该服务器。
use std::io::{Read, Write};
use std::net::{TcpListener, TcpStream};
use std::thread;
use std::str;
fn handle_read(mut stream: TcpStream) {
let mut buf;
// clear out the buffer so we don't send garbage
buf = [0; 512];
// Read and discard any data from the client since this is a read only server.
let _ = match stream.read(&mut buf) {
Err(e) => panic!("Got an error: {}", e),
Ok(m) => m,
};
println!("Got some data");
// Write back the response to the TCP stream
match stream.write("This works!".as_bytes()) {
Err(e) => panic!("Read-Server: Error writing to stream {}", e),
Ok(_) => (),
}
}
pub fn read_server() {
// Create TCP server
let listener = TcpListener::bind("127.0.0.1:6009").unwrap();
println!("Read server listening on port 6009 started, ready to accept");
// Wait for incoming connections and respond accordingly
for stream in listener.incoming() {
match stream {
Err(_) => {
println!("Got an error");
}
Ok(stream) => {
println!("Received a connection");
// Spawn a new thread to respond to the connection request
thread::spawn(move || {
handle_read(stream);
});
}
}
}
}
fn main() {
read_server();
}
答案 0 :(得分:4)
let listener = TcpListener::bind("127.0.0.1:6009").unwrap();
如果绑定到127.0.0.1:xxxx
,套接字只能从localhost接口侦听。要允许外部连接,请绑定到0.0.0.0
,以便它可以接受来自所有网络接口的连接。
let listener = TcpListener::bind("0.0.0.0:6009").unwrap();
有关详细信息,请参阅Why would I bind on a different server than 127.0.0.1?。
BTW,(1)// not idiomatic
let _ = match stream.read(&mut buf) {
Err(e) => panic!("Got an error: {}", e),
Ok(m) => m,
};
您可以使用Result::expect
。
// better
stream.read(&mut buf).expect("Got an error");
(2)
// not idiomatic
match stream.write("This works!".as_bytes()) {
Err(e) => panic!("Read-Server: Error writing to stream {}", e),
Ok(_) => (),
}
而不是"aaa".as_bytes()
,您只需撰写b"aaa"
。
// better
stream.write(b"This works!").expect("Read-Server: Error writing to stream");