Estoy tratando de enviar una publicación HTTP con la aplicación de iOS que estoy desarrollando, pero la inserción nunca llega al servidor, aunque obtengo un código 200 como respuesta (de la conexión de url). Nunca recibo una respuesta del servidor ni el servidor detecta mis publicaciones (el servidor detecta publicaciones provenientes de Android)
Yo uso ARC pero he configurado pd y urlConnection como fuertes.
Este es mi código para enviar la solicitud.
NSMutableURLRequest *request = [[NSMutableURLRequest alloc]
initWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@%@",dk.baseURL,@"daantest"]]];
[request setHTTPMethod:@"POST"];
[request setValue:@"text/xml"
forHTTPHeaderField:@"Content-type"];
NSString *sendString = @"<data><item>Item 1</item><item>Item 2</item></data>";
[request setValue:[NSString stringWithFormat:@"%d", [sendString length]] forHTTPHeaderField:@"Content-length"];
[request setHTTPBody:[sendString dataUsingEncoding:NSUTF8StringEncoding]];
PushDelegate *pushd = [[PushDelegate alloc] init];
pd = pushd;
urlConnection = [[NSURLConnection alloc] initWithRequest:request delegate:pd];
[urlConnection start];
este es mi código para el delegado
#import "PushDelegate.h"
@implementation PushDelegate
@synthesize data;
-(id) init
{
if(self = [super init])
{
data = [[NSMutableData alloc]init];
[data setLength:0];
}
return self;
}
- (void)connection:(NSURLConnection *)connection didWriteData:(long long)bytesWritten totalBytesWritten:(long long)totalBytesWritten
{
NSLog(@"didwriteData push");
}
- (void)connectionDidResumeDownloading:(NSURLConnection *)connection totalBytesWritten:(long long)totalBytesWritten expectedTotalBytes:(long long)expectedTotalBytes
{
NSLog(@"connectionDidResumeDownloading push");
}
- (void)connectionDidFinishDownloading:(NSURLConnection *)connection destinationURL:(NSURL *)destinationURL
{
NSLog(@"didfinish push @push %@",data);
}
- (void)connection:(NSURLConnection *)connection didSendBodyData:(NSInteger)bytesWritten totalBytesWritten:(NSInteger)totalBytesWritten totalBytesExpectedToWrite:(NSInteger)totalBytesExpectedToWrite
{
NSLog(@"did send body");
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
[self.data setLength:0];
NSHTTPURLResponse *resp= (NSHTTPURLResponse *) response;
NSLog(@"got response with status @push %d",[resp statusCode]);
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)d
{
[self.data appendData:d];
NSLog(@"recieved data @push %@", data);
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSString *responseText = [[NSString alloc] initWithData:self.data encoding:NSUTF8StringEncoding];
NSLog(@"didfinishLoading%@",responseText);
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
[[[UIAlertView alloc] initWithTitle:NSLocalizedString(@"Error ", @"")
message:[error localizedDescription]
delegate:nil
cancelButtonTitle:NSLocalizedString(@"OK", @"")
otherButtonTitles:nil] show];
NSLog(@"failed &push");
}
// Handle basic authentication challenge if needed
- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge
{
NSLog(@"credentials requested");
NSString *username = @"username";
NSString *password = @"password";
NSURLCredential *credential = [NSURLCredential credentialWithUser:username
password:password
persistence:NSURLCredentialPersistenceForSession];
[[challenge sender] useCredential:credential forAuthenticationChallenge:challenge];
}
@end
La consola siempre imprime las siguientes líneas y solo las siguientes líneas:
2013-04-01 20:35:04.341 ApprenticeXM[3423:907] did send body
2013-04-01 20:35:04.481 ApprenticeXM[3423:907] got response with status @push 200
2013-04-01 20:35:04.484 ApprenticeXM[3423:907] didfinish push @push <>
ios
objective-c
automatic-ref-counting
http-post
nsurlconnection
Daan Luttik
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-(void)sendingAnHTTPPOSTRequestOniOSWithUserEmailId: (NSString *)emailId withPassword: (NSString *)password{ //Init the NSURLSession with a configuration NSURLSessionConfiguration *defaultConfigObject = [NSURLSessionConfiguration defaultSessionConfiguration]; NSURLSession *defaultSession = [NSURLSession sessionWithConfiguration: defaultConfigObject delegate: nil delegateQueue: [NSOperationQueue mainQueue]]; //Create an URLRequest NSURL *url = [NSURL URLWithString:@"http://www.example.com/apis/login_api"]; NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url]; //Create POST Params and add it to HTTPBody NSString *params = [NSString stringWithFormat:@"email=%@&password=%@",emailId,password]; [urlRequest setHTTPMethod:@"POST"]; [urlRequest setHTTPBody:[params dataUsingEncoding:NSUTF8StringEncoding]]; //Create task NSURLSessionDataTask *dataTask = [defaultSession dataTaskWithRequest:urlRequest completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) { //Handle your response here NSDictionary *responseDict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil]; NSLog(@"%@",responseDict); }]; [dataTask resume]; }fuente
No estoy realmente seguro de por qué, pero tan pronto como comento el siguiente método, funciona:
Además, no creo que necesite los métodos del protocolo NSUrlConnectionDownloadDelegate, solo los de NSURLConnectionDataDelegate, a menos que desee información de descarga.
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Este es el método que utilicé en mi biblioteca de registro: https://github.com/goktugyil/QorumLogs
Este método llena formularios html dentro de Google Forms. Espero que ayude a alguien a usar Swift.
var url = NSURL(string: urlstring) var request = NSMutableURLRequest(URL: url!) request.HTTPMethod = "POST" request.setValue("application/x-www-form-urlencoded; charset=utf-8", forHTTPHeaderField: "Content-Type") request.HTTPBody = postData.dataUsingEncoding(NSUTF8StringEncoding) var connection = NSURLConnection(request: request, delegate: nil, startImmediately: true)fuente
Envío de una solicitud HTTP POST en iOS (objetivo c):
-(NSString *)postexample{ // SEND POST NSString *url = [NSString stringWithFormat:@"URL"]; NSString *post = [NSString stringWithFormat:@"param=value"]; NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; NSString *postLength = [NSString stringWithFormat:@"%d",[postData length]]; NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init]; [request setHTTPMethod:@"POST"]; [request setURL:[NSURL URLWithString:url]]; [request setValue:postLength forHTTPHeaderField:@"Content-Length"]; [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; [request setHTTPBody:postData]; NSError *error = nil; NSHTTPURLResponse *responseCode = nil; //RESPONDE DATA NSData *oResponseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&responseCode error:&error]; if([responseCode statusCode] != 200){ NSLog(@"Error getting %@, HTTP status code %li", url, (long)[responseCode statusCode]); return nil; } //SEE RESPONSE DATA UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Response" message:[[NSString alloc] initWithData:oResponseData encoding:NSUTF8StringEncoding] delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil]; [alert show]; return [[NSString alloc] initWithData:oResponseData encoding:NSUTF8StringEncoding]; }fuente
Usando Swift 3 o 4 puede acceder a estas solicitudes http para la comunicación del servidor.
// Para solicitar datos POST
func postAction() { //declare parameter as a dictionary which contains string as key and value combination. considering inputs are valid let parameters = ["id": 13, "name": "jack"] as [String : Any] //create the url with URL let url = URL(string: "www.requestURL.php")! //change the url //create the session object let session = URLSession.shared //now create the URLRequest object using the url object var request = URLRequest(url: url) request.httpMethod = "POST" //set http method as POST do { request.httpBody = try JSONSerialization.data(withJSONObject: parameters, options: .prettyPrinted) // pass dictionary to nsdata object and set it as request body } catch let error { print(error.localizedDescription) } request.addValue("application/json", forHTTPHeaderField: "Content-Type") request.addValue("application/json", forHTTPHeaderField: "Accept") //create dataTask using the session object to send data to the server let task = session.dataTask(with: request as URLRequest, completionHandler: { data, response, error in guard error == nil else { return } guard let data = data else { return } do { //create json object from data if let json = try JSONSerialization.jsonObject(with: data, options: .mutableContainers) as? [String: Any] { print(json) // handle json... } } catch let error { print(error.localizedDescription) } }) task.resume() }// Para obtener los datos de la solicitud
func GetRequest() { let urlString = URL(string: "http://www.requestURL.php") //change the url if let url = urlString { let task = URLSession.shared.dataTask(with: url) { (data, response, error) in if error != nil { print(error ?? "") } else { if let responceData = data { print(responceData) //JSONSerialization do { //create json object from data if let json = try JSONSerialization.jsonObject(with:responceData, options: .mutableContainers) as? [String: Any] { print(json) // handle json... } } catch let error { print(error.localizedDescription) } } } } task.resume() } }// Para obtener el contenido de descarga como imagen o video de la solicitud
func downloadTask() { // Create destination URL let documentsUrl:URL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first as URL! let destinationFileUrl = documentsUrl.appendingPathComponent("downloadedFile.jpg") //Create URL to the source file you want to download let fileURL = URL(string: "http://placehold.it/120x120&text=image1") 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)") } } else { print("Error took place while downloading a file. Error description: %@", error?.localizedDescription ?? ""); } } task.resume() }fuente
C objetivo
NSString *string= [NSString stringWithFormat:@"url?uname=%@&pass=%@&uname_submit=Login",self.txtUsername.text,self.txtPassword.text]; NSLog(@"%@",string); NSURL *url = [NSURL URLWithString:string]; NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url]; [request setHTTPMethod:@"POST"]; NSURLResponse *response; NSError *err; NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err]; NSLog(@"responseData: %@", responseData); NSString *str = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding]; NSLog(@"responseData: %@", str); NSDictionary* json = [NSJSONSerialization JSONObjectWithData:responseData options:kNilOptions error:nil]; NSDictionary* latestLoans = [json objectForKey:@"status"]; NSString *str2=[NSString stringWithFormat:@"%@", latestLoans]; NSString *str3=@"success"; if ([str3 isEqualToString:str2 ]) { [self performSegueWithIdentifier:@"move" sender:nil]; NSLog(@"successfully."); } else { UIAlertController *alert= [UIAlertController alertControllerWithTitle:@"Try Again" message:@"Username or Password is Incorrect." preferredStyle:UIAlertControllerStyleAlert]; UIAlertAction* ok = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:^(UIAlertAction * action){ [self.view endEditing:YES]; } ]; [alert addAction:ok]; [[UIView appearanceWhenContainedIn:[UIAlertController class], nil] setTintColor:[UIColor redColor]]; [self presentViewController:alert animated:YES completion:nil]; [self.view endEditing:YES]; }Respuesta JSON : {"status": "success", "user_id": "58", "user_name": "dilip", "result": "Has iniciado sesión correctamente"} Código de trabajo
**
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