Question

我有想法将我的wifi墙式适配器连接到我的电脑。我第一次看到其他想法，发现链接：Connecting through pc 在这个链接中是一个python代码，我也尝试过并完美地为我工作。比我试图在Swift中重建它并找到Socketswift。我实现了它并试图用端口8530连接到“192.168.2.131”，它没有用。我收到了失败：“连接超时”。到目前为止，我无法弄清楚我做错了什么，因为当我通过python尝试同样的事情时它起作用。这是我的python代码：

d = socket.socket()
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM,0)
s.connect(('192.168.2.131', 8530)) # (IP, Port) is a single variable passed to connect function
s.send(bytearray.fromhex('01 40' + mac + on)) # to switch 'on'
time.sleep(5) # sleep for 5 seconds

这是我的IOS / Swift代码：

let client = TCPClient(address: "192.168.2.131", port: 8530)

        switch client.connect(timeout: 10){
        case .success:
            print("connected")
            var hex: String = String("01 40" + mac + off)
            var byteArray = [UInt8]()
            byteArray += hex.utf8
            let data: Data = Data(bytes: byteArray)
            let result = client.send(data: data)
        case .failure(let error):
            print(error)
        }

感谢您的回答。如果您有任何疑问或需要更多信息，请给我发消息

Answer 1

如果我在python中使用TCP套接字，我会在connect()调用时收到超时错误 - 就像你的iOS代码一样。

这是一个你可以玩的python TCP客户端：

import socket
import time

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)  #SOCK_STREAM => TCP, SOCK_DGRAM => UDP
s.settimeout(10)
s.connect(('192.168.2.131', 8530)) 

s.send(bytearray.fromhex('01 40')) # to switch 'on'
time.sleep(20)

结果：

~/python_programs$ p34 1.py 
Traceback (most recent call last):
  File "1.py", line 6, in <module>
    s.connect(('192.168.2.131', 8530)) 
socket.timeout: timed out

尝试在设置中使用python TCP代码。我猜它不起作用，因为iOS TCP代码不起作用。接下来，因为您说python UDP代码适合您，我会尝试creating a UDP socket with SwiftSocket。

Answer 2

这是使用安装了cocoapods的SwiftSocket的示例UDP客户端和服务器：

import UIKit
import SwiftSocket

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        //This can be a server using localhost on your Macbook as well.
        DispatchQueue.global(qos: .background).async {

            let udpServer = UDPServer(address: "127.0.0.1", port:12033)
            var count = 1

            while true {
                print("Server about to recv() \(count)")
                let(byteArray, sender, port) = udpServer.recv(1024)

                if let byteArray = byteArray,
                   let string = String(data: Data(byteArray), encoding: .utf8)
                {
                    print("Server received: \(string)\nsender: \(sender)\nport: \(port)\n\n")

                }

                count += 1
            }

        }

        DispatchQueue.global(qos: .background).async {

            let udpClient = UDPClient(address: "127.0.0.1", port: 12033)

            switch udpClient.send(string: "Hello") {
            case .success:
                print("Client sent message to server.")
            case .failure(let error):
                print("Client failed to send message to server: \(error)")
            }
            udpClient.close()

            DispatchQueue.main.async {
                //This is run on the main queue, after the previous
                //code executes.  Update UI here.
            }
        }

    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}

--output:--
Server about to recv() 1
Client sent message to server.
Server received: Hello
sender: 127.0.0.1
port: 42998


Server about to recv() 2

Socketswift连接超时到特定的ip地址

2 个答案: