В качестве продолжения этого вопроса загрузка изображений на сервер не работает (там вы можете найти мой php-файл), я понял, почему он не работает. Но я не знаю решения. Как вы можете видеть в коде (несколько строк вниз), я даю свое изображение файлу php, но он не распознает его как изображение. Поэтому я надеюсь, что кто-то может помочь с этим и знает (возможно очевидное) решение:
- (IBAction)changepic:(id)sender{ picker = [[UIImagePickerController alloc] init]; picker.delegate = self; picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; [self presentModalViewController:picker animated:YES]; } - (void)imagePickerController:(UIImagePickerController *) Picker didFinishPickingMediaWithInfo:(NSDictionary *)info{ double compressionRatio=1; NSData *imageData=UIImageJPEGRepresentation([info objectForKey:UIImagePickerControllerOriginalImage],compressionRatio); while ([imageData length]>50000) { compressionRatio=compressionRatio*0.50; imageData=UIImageJPEGRepresentation([info objectForKey:UIImagePickerControllerOriginalImage],compressionRatio); } UIImage *yourUIImage; yourUIImage = [info objectForKey:UIImagePickerControllerOriginalImage]; imageData = [NSKeyedArchiver archivedDataWithRootObject:yourUIImage]; [[NSUserDefaults standardUserDefaults] setObject:imageData forKey:@"bild"]; [[NSUserDefaults standardUserDefaults] synchronize]; NSData *imageData2 = UIImageJPEGRepresentation(yourUIImage, 90); NSString *urlString = @"http://myserver/upload.php"; NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init]; [request setURL:[NSURL URLWithString:urlString]]; [request setHTTPMethod:@"POST"]; NSString *boundary = [NSString stringWithString:@"---------------------------14737809831466499882746641449"]; NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary]; [request addValue:contentType forHTTPHeaderField: @"Content-Type"]; NSMutableData *body = [NSMutableData data]; [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"image\"; filename=\"imagename.jpg\"\r\n",index] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[NSData dataWithData:imageData2]]; [body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]]; // setting the body of the post to the reqeust [request setHTTPBody:body]; NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding]; NSLog(@"%@", returnString); [self dismissModalViewControllerAnimated:YES]; } Я сделал это простой функцией, которая может быть включена и использована во всех проектах. В моем случае удаленный сервер – это PHP-скрипт.
Так используется функция:
// form text fields and values NSArray *formfields = [NSArray arrayWithObjects:@"name", @"date", @"purpose", @"comment", nil]; NSArray *formvalues = [NSArray arrayWithObjects:@"Write Blog", @"31-03-2011", @"For Test", @"Just Comment", nil]; NSDictionary *textParams = [NSDictionary dictionaryWithObjects:formvalues forKeys:formfields]; // if, there are any images in the form NSArray *images = [NSArray arrayWithObjects:@"myimage1.png", @"myimage2.png", nil]; // submit the form [self doPostWithText:textParams andImage:images];
Это определение функции для doPostWithText: andImage:
- (void) doPostWithText:(NSDictionary *)textParams andImage:(NSArray *)imageParams { NSString *urlString = @"http://mysite.com/myscript.php"; NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; [request setURL:[NSURL URLWithString:urlString]]; [request setHTTPMethod:@"POST"]; NSMutableData *body = [NSMutableData data]; NSString *boundary = [NSString stringWithString:@"---------------------------14737809831466499882746641449"]; NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary]; [request addValue:contentType forHTTPHeaderField:@"Content-Type"]; // add the image form fields for (int i=0; i<[imageParams count]; i++) { [body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithFormat:@"Content-Disposition: attachment; name=\"image%d\"; filename=\"%@\"\r\n", i, [imageParams objectAtIndex:i]] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithString:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[NSData dataWithData:UIImageJPEGRepresentation([UIImage imageNamed:[imageParams objectAtIndex:i]], 90)]]; [body appendData:[[NSString stringWithString:@"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; } // add the text form fields for (id key in textParams) { [body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n", key] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithString:[textParams objectForKey:key]] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithString:@"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; } // close the form [body appendData:[[NSString stringWithFormat:@"--%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; // set request body [request setHTTPBody:body]; // send the request (submit the form) and get the response NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding]; NSLog(@"%@", returnString); }
На стороне PHP я получу следующие данные:
$_POST Array ( [name] => Write Blog [purpose] => For Test [comment] => Just Comment [date] => 31-03-2011 ) $_FILES Array ( [image0] => Array ( [name] => myimage1.png [type] => application/octet-stream [tmp_name] => /junk/temp/phpsKiVxx [error] => 0 [size] => 23602 ) [image1] => Array ( [name] => myimage2.png [type] => application/octet-stream [tmp_name] => /junk/temp/phpNVGDoB [error] => 0 [size] => 4620 ) )
удалите эти строки и попробуйте … это сработает …
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary]; [request addValue:contentType forHTTPHeaderField: @"Content-Type"];