Question

我尝试使用以下代码连接到我在Mac上本地运行的ruby sinatra服务器：

func load(finished: @escaping ()->()) {

    // Create destination URL
    let destinationFileUrl = documentsUrl.appendingPathComponent("Images.zip")

    //Create URL to the source file you want to download
    let fileURL = URL(string: "http://waynerumble.local~waynerumble:4567/download")

    //Create Session
    let sessionConfig = URLSessionConfiguration.default
    let session = URLSession(configuration: sessionConfig)
    let request = URLRequest(url:fileURL!)

    let task = session.downloadTask(with: request) { (tempLocalUrl, response, error) in

        if let tempLocalUrl = tempLocalUrl, error == nil {
            // Success
            if let statusCode = (response as? HTTPURLResponse)?.statusCode {
                print("Successfully downloaded. Status code: \(statusCode)")
            }

            do {

                try FileManager.default.copyItem(at: tempLocalUrl, to: destinationFileUrl)
            } catch (let writeError) {

                print("Error creating a file \(destinationFileUrl) : \(writeError)")
            }

            finished()
        } else {

            print("Error took place while downloading a file. Error description: %@", (error?.localizedDescription)! as String);
            finished()
        }
    }
    task.resume()
}

如果我从模拟器测试应用程序并将fileURL设置为"http://127.0.0.1:4567/download"它可以正常工作但我从设备上了解到目前为止我必须尝试不同之处：

从终端中运行ifconig我在en1获得192.168.1.254所以我尝试"http://192.168.1.255:4567/download"给了我：

[] nw_socket_connect connectx failed: [13] Permission denied
Error took place while downloading a file. Error description: %@ Could not connect to the server.

我也尝试过： "http://waynerumble.local:4567/download"给出：

Error took place while downloading a file. Error description: %@ Could not connect to the server.

"http://waynerumble.local.~waynerumble:4567/download"（waynerumble是我的计算机名和用户名），它给出了：

Error took place while downloading a file. Error description: %@ A server with the specified hostname could not be found.

我也有以太网和iphone的wifi上网共享。我不知道还有什么可以尝试

Answer 1

192.168.1.255是您网络的brodcast地址，您不应该使用它。

为什么不连接到真实的IP 192.168.1.254？

要将Sinatra应用程序绑定到每个界面，请尝试：

class MyApp < Sinatra::Base
  set :bind, '0.0.0.0'

然后http://192.168.1.254:4567/download应该有效。还要记住在防火墙中打开所需的端口。

从设备连接到本地mac服务器

1 个答案: