得到錯誤在迅速

Question

發佈的數據我使用POST方法類似這樣的

let login = ["user_name":usernameTextField.text,"password":passwordTextField.text] 
    //["user":"ords_user@gmail.com", "pass":"ords_password"] 

let url = NSURL(string: "http://localhost:8300")! 

let session = NSURLSession.sharedSession() 

let request = NSMutableURLRequest(URL: url) 

do { 
    // JSON all the things 
    let auth = try NSJSONSerialization.dataWithJSONObject(login, options: .PrettyPrinted) 

    // Set the request content type to JSON 
    request.setValue("application/json", forHTTPHeaderField: "Content-Type") 

    // The magic...set the HTTP request method to POST 
    request.HTTPMethod = "POST" 

    // Add the JSON serialized login data to the body 
    request.HTTPBody = auth 

    // Create the task that will send our login request (asynchronously) 
    let task = session.dataTaskWithRequest(request, completionHandler: { (data, response, error) -> Void in 
     // Do something with the HTTP response 
     print("Got response \(response) with error \(error)") 
     print("Done.") 
    }) 

    // Start the task on a background thread 
    task.resume() 

} catch { 
    // Handle your errors folks... 
    print("Error") 
} 

發送的數據，但我越來越喜歡

參數類型「錯誤信息[字符串：字符串] '不符合預期類型'AnyObject'

如果我給直接字符串它接受。如果我動態使用TextField，它不會來。我不知道我做了什麼錯誤。

任何人請幫助解決這個問題？

在此先感謝。

Answer 1

我認爲你的問題是你正在將可選字符串放入字典中。

嘗試這樣做：

guard 
    let username = usernameTextField.text, 
    let password = passwordTextField.text else { 
     return print("Need username & password") 
} 
let login = ["user_name": username,"password": password] 
... 

Answer 2

UITextField的文本屬性返回一個可選的值，因此編譯器無法將其轉換爲AnyObject。 您必須先解開optionals。

Answer 3

試試這個

let login = ["user_name":usernameTextField.text,"password":passwordTextField.text] as Dictionary<String, AnyObject>