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不太確定我在這裏失蹤的代碼是否工作。嘗試使登錄/註冊連接到服務器的應用程序,但我似乎無法讓它工作。這是我的代碼:在swift 2.0中註冊/登錄錯誤
do {
let post:NSString = "username=\(username)&password=\(password)"
NSLog("PostData: %@",post)
let url:NSURL = NSURL(string: "http://www.ec2-54-191-63-219.us-west-2.compute.amazonaws.com/userRegistration.php")!
let postData:NSData = post.dataUsingEncoding(NSUTF8StringEncoding)!
let request:NSMutableURLRequest = NSMutableURLRequest(URL: url)
request.HTTPMethod = "POST"
request.HTTPBody = postData
let task = NSURLSession.sharedSession().dataTaskWithRequest(request)
{data, response, error in
do {
let json = try NSJSONSerialization.JSONObjectWithData(data!, options:NSJSONReadingOptions.MutableContainers) as? NSDictionary
if let parsejson = json
{
let resultValue:String = parsejson["status"] as! String
print("result: \(resultValue)")
if (resultValue == "Success")
{
let alert = UIAlertController(title: "Success", message: "Registration Successful", preferredStyle: UIAlertControllerStyle.Alert)
let okAction = UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default){action in self.dismissViewControllerAnimated(true, completion: nil)}
alert.addAction(okAction)
self.presentViewController(alert, animated: true, completion: nil)
}
else
{
print(resultValue)
}
}
} catch {
print("failed: \(error)")
}
}
task.resume()
這是錯誤我得到當我嘗試添加帳戶:
PostData: username=Optional("josh")&password=Optional("test") fatal error: unexpectedly found nil while unwrapping an Optional value
thx used guard error == nil && data!= nil else {print(「error = \(error)」);返回},需要更新從我重新啓動服務器時的網址。 –