Form Data Request using NSURLConnection in iOS
22,167
Solution 1
You are not copying the example of that link. In that tutorial, the HTTPBody parameter is supposed to be an instance of NSData, not NSString.
[request setHTTPMethod:@"POST"];
NSString *myString = [NSString stringWithFormat:@"value1=test3&value2=test"];
[request setHTTPBody:[myString dataUsingEncoding:NSUTF8StringEncoding]];
Solution 2
I tried this code for uploading the image and its working. Added boundry.
NSString *urlString = @"URL";
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:@"POST"];
NSString *boundary = @"---------------------------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:[@"Content-Disposition: form-data; name=\"userfile\"; filename=\"Test.png\"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Content-Type: application/octet-stream\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:imageData]];
[body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[request setHTTPBody:body];
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
Solution 3
This is working fine for me.
- (void)viewDidLoad
{
[super viewDidLoad];
NSMutableURLRequest *req=[[NSMutableURLRequest alloc]initWithURL:[NSURL URLWithString:@"http:///URL/iinsert.php"]];
NSString *myreqstr=@"name=abhii&address=knrr";
NSData *myreqdata=[NSData dataWithBytes:[myreqstr UTF8String] length:[myreqstr length]];
[req setHTTPMethod:@"POST"];
[ req setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"content-type"];
[ req setHTTPBody: myreqdata ];
//[req setValue:@"abhii" forHTTPHeaderField:@"name"];
//[req setValue:@"kar" forHTTPHeaderField:@"address"];
NSData *data=[NSURLConnection sendSynchronousRequest:req returningResponse:nil error:nil];
NSLog(@"%@",data);
NSString *returnstring=[[NSString alloc]initWithData:data encoding:NSASCIIStringEncoding];
NSLog(@"%@",returnstring);
// Do any additional setup after loading the view, typically from a nib.
}
Solution 4
Try this ....
NSURL *url = [NSURL URLWithString:@"URL"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:@"POST"];
NSString *myRequestString =@"Request string";
NSLog(@"%@",myRequestString);
NSData *myRequestData = [ NSData dataWithBytes: [ myRequestString UTF8String ] length: [ myRequestString length ] ];
[ request setHTTPBody: myRequestData ];
NSURLResponse *response;
NSError *err;
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
NSString *content = [NSString stringWithUTF8String:[responseData bytes]];
Comments
-
NSCry over 3 years
I want to make http form post using NSURLConnection in iOS. I have two form fields and one file upload option in an HTML form. When I am doing same thing using
NSURLConnection
I am not getting a response.NSString *urlString = @"http://url/test.php"; NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init]; [request setURL:[NSURL URLWithString:urlString]]; [request setHTTPMethod:@"POST"]; NSString *contentType = [NSString stringWithFormat:@"multipart/form-data"]; [request addValue:contentType forHTTPHeaderField: @"Content-Type"]; NSMutableData *body = [NSMutableData data]; [body appendData:[[NSString stringWithString:@"Content-Disposition: form-data; name=\"file\"; filename=\"myphoto.png\"rn"] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithString:@"Content-Type: application/octet-streamrnrn"] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:filedata]; [body appendData:[[NSString stringWithFormat:@"&s=YL4e6ouKirNDgCk0xV2HKixt&hw=141246514ytdjadh"] dataUsingEncoding:NSUTF8StringEncoding]]; [request setHTTPBody:body]; NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding]; NSLog(@"RETURNED:%@",returnString);
But when I use ASIHTTPRequest and write the following code it's working and I am getting a response.
ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:[NSURL URLWithString:@"http://url/test.php"]]; [request setPostValue:@"YL4e6ouKirNDgCk0xV2HKixt&hw" forKey:@"ssf"]; [request setPostValue:@"141246514ytdjadh" forKey:@"sds"]; [request setData:filedata withFileName:@"myphoto.png" andContentType:@"image/jpeg" forKey:@"file"]; [request startSynchronous]; NSError *error = [request error]; if (!error) { NSString *response = [request responseString]; NSLog(@"response:%@",response); }
Can anyone tell me what I'm doing wrong with the
NSURLConnection
part?