Question

我目前正在尝试使用JSON正文在iOS平台上发出POST请求。我的请求在cURL中有效，但我无法在iOS中使用它;请求超时。这是我的快速代码：

    class func createNewChannel(name: String, priv: String, channelKey: String, handle: String, password: String, auth: String) {
    let baseURL = "http://10.0.0.220:3000/"

    let dict = ["name": name, "private": priv, "channelKey": channelKey, "handle": handle, "password": password,  "auth": auth] as [String : Any]
    let jsonData = JSON(dict)
    do {
        let post = try jsonData.rawData()
        let postLength = String(post.count)
        let url = URL(string: "\(baseURL)channel/createChannel")!
        var request = URLRequest(url: url)
        request.httpMethod = "POST"
        request.httpBody = post as Data
        request.setValue(postLength, forHTTPHeaderField: "Content-Length")
        request.setValue("application/json", forHTTPHeaderField: "Content-Type")
        request.setValue("application/json", forHTTPHeaderField: "Accept")

        let session = URLSession.shared
        let task = session.dataTask(with: request, completionHandler: { (data, response, error) in
            if error == nil {
                do {
                    let json = try JSON(data: data!)
                    print(json)
                }
                catch {
                    print(error.localizedDescription)
                }
            }
            else {
                print(error!)
            }
        })
       task.resume()
    }
    catch {
        print(error.localizedDescription)
    }
}

当我调用此函数时，请求不起作用...我确信我正在使用正确的URL，因为它适用于GET端点。我错过任何标题吗？如果您发现请求有问题，请告诉我。

Answer 1

我只想自己发布一个答案，因为它可能会帮助将来的某个人。我正在使用设备发出请求，我正在向localhost发出请求。我太笨了，无法在手机上关闭无线网络.....

Answer 2

请试一试。

    let session = URLSession.shared
    let request = URLRequest(url:url)
    request.addValue("application/json", forHTTPHeaderField: "Content-Type")

     request.httpMethod = "POST"
        do {
            let data = try JSONSerialization.data(withJSONObject: yourParam!, options:JSONSerialization.WritingOptions(rawValue: 0))
            let mappedString : String = (String(data: data , encoding: String.Encoding.utf8)!)
            request.httpBody = mappedString.data(using: String.Encoding.utf8, allowLossyConversion: false)
        }
        catch let error as NSError
        {
            print("JSON ERROR 1     " + error.localizedDescription)
            closure(Result.failure(error))
            return
        }
     let task = session.dataTask(with: request, completionHandler: {
        (data, response, error) in
         DispatchQueue.main.async {
             guard data != nil && error == nil else {
                print(error)
                 return
            }
            do {
                let jsonResult : NSDictionary? = try JSONSerialization.jsonObject(with: data!, options: JSONSerialization.ReadingOptions.mutableContainers) as? NSDictionary
                print("jsonResult\(jsonResult!)")
             } catch let error as NSError {
                 print("JSON ERROR 2     " + error.localizedDescription)
            }
    }
})
                task.resume()

感谢。

iOS URLRequest POST失败Swift

2 个答案: