如何使用 Starscream 修复 "websocket is disconnected: Invalid HTTP upgrade" 错误

Question

我想在我的 Macbook 上使用 MAMP 和红蜘蛛库 iPhone 连接网络服务器运行ning https://github.com/daltoniam/Starscream 使用 Cocoapods 安装并设置 Web 服务器 URL:localhost:8888 但是我很头疼，因为代码不起作用……我遵循了所有在线指南、官方文档等等，但是 none 帮助了我…… 每当我运行代码时，控制台都会显示此消息：websocket is disconnected: Invalid HTTP upgrade

也许是我的服务器坏了？我尝试改用 ws://echo.websocket.org/ 并且成功了！！！所以我想......因为它终于告诉我：websocket 已连接但同时它不是！事实上，方法 socket.isConnected 给了我错误...之后，如果我调用 socket.disconnect() 它不会工作，没有消息显示。

import UIKit
import Starscream

class ViewController: UIViewController, WebSocketDelegate {

    let socket = WebSocket(url: URL(string:"ws://echo.websocket.org/")!)//websocket is connected
    /*
    let socket = WebSocket(url: URL(string: "ws://localhost:8888/")!) //websocket is disconnected: Invalid HTTP upgrade
    */
    override func viewDidLoad() {
        super.viewDidLoad()

        socket.delegate = self
        socket.connect()

        if socket.isConnected {
            print("hi1") //it doesn't get printed
        }
        if !socket.isConnected {
            print("hi2") //it gets printed
        }

    }

    func websocketDidConnect(socket: WebSocketClient) {
        print("websocket is connected")
    }

    func websocketDidDisconnect(socket: WebSocketClient, error: Error?) {
        if let e = error as? WSError {
            print("websocket is disconnected: \(e.message)")
        } else if let e = error {
            print("websocket is disconnected: \(e.localizedDescription)")
        } else {
            print("websocket disconnected")
        }
    }

    func websocketDidReceiveMessage(socket: WebSocketClient, text: String) {
        print("Received text: \(text)")
    }

    func websocketDidReceiveData(socket: WebSocketClient, data: Data) {
        print("Received data: \(data.count)")
    }

}

Answer 1

所以我终于明白了问题所在：默认情况下 Apache 不支持 Web 套接字...这就是我收到错误消息的原因。然后代码与 "ws://echo.websocket.org/" 一起工作。您只需将所有 socket.x 函数放在 viewDidLoad() 之外即可使它们工作，例如 socket.disconnect 在断开按钮中，socket.write 在 sendButton 等中

例如：

let socket = WebSocket(url: URL(string: "ws://echo.websocket.org/")!) 

override func viewDidLoad() {
    super.viewDidLoad()

    socket.delegate = self
    socket.connect()

}

@IBAction func sendButtonPressed(_ sender: UIButton) {
    socket.write(string: textField.text!)
}

如何使用 Starscream 修复 "websocket is disconnected: Invalid HTTP upgrade" 错误

How to fix "websocket is disconnected: Invalid HTTP upgrade" error using Starscream

ios

swift

xcode

websocket

starscream