Question

我正在尝试在iOS中创建一个应用程序，但我在注册用户时遇到问题，当我点击注册按钮时，我收到Code 3840错误，“字符0周围的值无效”。我正在使用Swift，PHP和JSON

这是我的代码

RegistrarUsuario.swift

@IBAction func RegistrarUsuario(sender: AnyObject) {

    let usuarioCorreo = Correo.text
    let usuarioNombre = Nombre.text
    let usuarioApellido = Apellido.text
    let usuarioContrasena = Contrasena.text


    if (usuarioCorreo!.isEmpty || usuarioApellido!.isEmpty || usuarioNombre!.isEmpty || usuarioContrasena!.isEmpty)
    {
        mostrarMensaje("No ha llenado todos los campos")
        return
    }

    let urlServer = NSURL(string: "http://...../..../registro.php")

   // let post:NSString = "correo=\(usuarioCorreo)&nombre=\(usuarioNombre)&apellido=\(usuarioApellido)&contraseña=\(usuarioContrasena)"

    let post:NSDictionary = ["correo": usuarioCorreo!, "nombre": usuarioNombre!, "apellido": usuarioApellido!, "contrasena": usuarioContrasena!]
    NSLog("PostData: %@",post);

    //let postData:NSData = post.dataUsingEncoding(NSASCIIStringEncoding)!
    let postData:NSData = NSKeyedArchiver.archivedDataWithRootObject(post)
    let postLength:NSString = String( postData.length )
    let request:NSMutableURLRequest = NSMutableURLRequest(URL: urlServer!)
    request.HTTPMethod = "POST"
    request.HTTPBody = postData
    request.setValue(postLength as String, forHTTPHeaderField: "Content-Length")
    request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
    request.setValue("application/json; charset=utf-8", forHTTPHeaderField: "Accept")

    var reponseError: NSError?
    var response: NSURLResponse?

    var urlData: NSData?
    do {
        urlData = try NSURLConnection.sendSynchronousRequest(request, returningResponse:&response)
    } catch let error as NSError {
        reponseError = error
        urlData = nil
    }

    if ( urlData != nil ) {
        let res = response as! NSHTTPURLResponse!;


        NSLog("Codigo de respuesta: %ld", res.statusCode);

        if (res.statusCode >= 200 && res.statusCode < 300)
        {
            //let responseData:NSString  = NSString(data:urlData!, encoding:NSUTF8StringEncoding)!

            //NSLog("Respuesta ==> %@", responseData);

            var error: NSError?

            let jsonData:NSDictionary = try! NSJSONSerialization.JSONObjectWithData(urlData!, options:NSJSONReadingOptions.AllowFragments) as! NSDictionary


            let success:NSInteger = jsonData.valueForKey("success") as! NSInteger


            NSLog("Success: %ld", success);

            if(success == 1)
            {
                NSLog("Se ha creado la cuenta correctamente!");
                self.dismissViewControllerAnimated(true, completion: nil)
            } else {
                var error_msg:NSString

                if jsonData["error_message"] as? NSString != nil {
                    error_msg = jsonData["error_message"] as! NSString
                } else {
                    error_msg = "Error desconocido"
                }
                let alertView:UIAlertView = UIAlertView()
                alertView.title = "No se pudo crear la cuenta!"
                alertView.message = error_msg as String
                alertView.delegate = self
                alertView.addButtonWithTitle("Aceptar")
                alertView.show()

            }

        } else {
            let alertView:UIAlertView = UIAlertView()
            alertView.title = "No se pudo crear la cuenta!"
            alertView.message = "Conexion Fallida"
            alertView.delegate = self
            alertView.addButtonWithTitle("Aceptar")
            alertView.show()
        }
    }  else {
        let alertView:UIAlertView = UIAlertView()
        alertView.title = "No se pudo crear la cuenta!"
        alertView.message = "Conexion Fallida"
        if let error = reponseError {
            alertView.message = (error.localizedDescription)
        }
        alertView.delegate = self
        alertView.addButtonWithTitle("Aceptar")
        alertView.show()
    }


}

Registro.php

<?php

header('Content-type: application/json');

if($_POST) {

    $correo  = $_POST['correo'];
    $nombre   = $_POST['nombre'];
    $apellido = $_POST['apellido'];
    $contraseña = $_POST['contraseña'];
    if($_POST['correo']) {


        $mysqli = new mysqli('localhost', 'root', '', 'prueba');

        /* check connection */
        if (mysqli_connect_errno()) {
            error_log("Conexion fallida: " . mysqli_connect_error());
            echo '{"success":0,"error_message":"' . mysqli_connect_error() . '"}';
        } else {
            $query = "INSERT INTO usuarios (correo, nombre, apellido, contrasena) VALUES (?, ?, ?, ?)";
            if($stmt = $mysqli->prepare($query)){
            $contrasena = md5($contrasena);
            $stmt->bind_param('ss', $correo, $nombre, $apellido, $contrasena);

            /* execute prepared statement */
            $stmt->execute();
            }
            else
            {
                die("Errormessage: ". $mysqli->error);
            }
            if ($stmt->error) {error_log("Error: " . $stmt->error); }

            $success = $stmt->affected_rows;

            /* close statement and connection */
            $stmt->close();

            /* close connection */
            $mysqli->close();
            error_log("Success: $success");

            if ($success > 0) {
                error_log("User '$correo' ha sido creado.");
                echo '{"success":1}';
            } else {
                echo '{"success":0,"error_message":"Correo Existe."}';
            }
        }
} else {
    echo '{"success":0,"error_message":"Usuario Invalido."}';
}
}else {
    echo '{"success":0,"error_message":"Informacion Invalida."}';
}
?>

非常感谢你的帮助，谢谢。

Answer 1

最近我也遇到了这个问题。

再次查看您的响应/当您执行正在执行响应的Web服务时。

在你的情况下，只需尝试“responseString而不是responseJSON”。

我希望它会对你有所帮助。

Answer 2

我也遇到了这个问题。

此问题的原因是您的网址的拼写和语法经过多天试图弄清楚为什么会出现这个问题我注意到网址中有错误（我忘了=）你必须在你的网址中充满爱意

祝你好运

Code = 3840“字符0周围的值无效。”

2 个答案: