posting data to server from iphone app - iphone

Question

I am posting data to server from iphone app but it gives exception while reading post line code about "excess bad access".Same code I use for sending four variables data then it is working fine if i add more variables in post it gives an error.
NSString*category=titleCategory;
NSString*sub_Category=titleSubCategory;
NSString*content_Type=#"Audio";
content_Title=TitleTextField.text;
NSString*content_Title=content_Title;
NSString*publisher=#"Celeritas";
content_Description=descriptionTextField.text;
NSString*content_Description=content_Description;
NSString*content_ID=#"10";
NSString*content_Source=#"http://www.celeritas-solutions.com/pah_brd_v1/productivo/productivo/pro/ali.wav";
NSString *post =[[NSString alloc] initWithFormat:#"category=%#&sub_Category=%#&content_Type=%#&content_Title=%#&publisher=%#&content_Description=%#&content_ID=%#&content_Source=%#",category,sub_Category,content_Type,content_Title,publisher,content_Description,content_ID,content_Source];
NSURL *url=[NSURL URLWithString:#"http://www.celeritas-solutions.com/pah_brd_v1/productivo/addData.php"];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init] ;
[request setURL:url];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
NSError *error;
NSURLResponse *response;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *data=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSLog(#"%#",data);
Below is the line where it breaks the code
NSString *post =[[NSString alloc] initWithFormat:#"category=%#&sub_Category=%#&content_Type=%#&content_Title=%#&publisher=%#&content_Description=%#&content_ID=%#&content_Source=%#",category,sub_Category,content_Type,content_Title,publisher,content_Description,content_ID,content_Source];

Answer 1

Try this
NSString *args = #"category=%#&sub_Category=%#&content_Type=%#&content_Title=%#&publisher=%#&content_Description=%#&content_ID=%#&content_Source=%#";
NSString *values=[NSString stringWithFormat:args,category,sub_Category,content_Type,content_Title,publisher,content_Description,content_ID,content_Source];
NSData *postData = [values dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSString *path = [[NSString alloc] initWithFormat:#"%s",your urlpath];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:path]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody:[values dataUsingEncoding:NSISOLatin1StringEncoding]];
[request setHTTPBody:postData];
NSURLResponse *response;
NSError *err;
NSData *responseData = [NSURLConnection sendSynchronousRequest:request
returningResponse:&response error:&err];
NSString *returnString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
[NSURLConnection connectionWithRequest:request delegate:self];
//NSLog(#"String==> %#",returnString);
Hope this helps...
Good luck !!

Answer 2

Following code a help a lot while i test into the project as well as
In .h File
#import <UIKit/UIKit.h>
#interface ViewController : UIViewController{
NSURLConnection *connection;
NSMutableData *responseData;
}
#end
In.m File
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
NSString*category=#"Cat1";
NSString*sub_Category=#"Title";
NSString*content_Type=#"Audio";
NSString* content_Title=#"Test";
NSString*publisher=#"Celeritas";
NSString*content_Description=#"Content Description";
NSString*content_ID=#"10";
NSString*content_Source=#"http://www.celeritas-solutions.com/pah_brd_v1/productivo/productivo/pro/ali.wav";
NSString*post = [NSString stringWithFormat:#"category=%#&sub_Category=%#&content_Type=%#&content_Title=%#&publisher=%#&content_Description=%#&content_ID=%#&content_Source=%#",category,sub_Category,content_Type,content_Title,publisher,content_Description,content_ID,content_Source];
NSURL *url=[NSURL URLWithString:#"http://www.celeritas-solutions.com/pah_brd_v1/productivo/addData.php"];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSMutableURLRequest *request=[NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:60];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
connection=[NSURLConnection connectionWithRequest:request delegate:self];
if(connection){
responseData=[NSMutableData data];
}
}
#pragma NSUrlConnection Delegate Methods
-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
[responseData setLength: 0];
}
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
[responseData appendData:data];
}
-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
// [delegate APIResponseArrived:NULL];
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection {
NSString *responseString =[[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
// [delegate APIResponseArrived:responseString ];
NSLog(#"%#",responseString);
}
This code solve your problem.

Answer 3

I got the solution of the question actually there was variable assignment issue for their invailded address that is why it was giving access bad error i assigned values directly then it worked for me fine like
NSString*category=#"Category";
NSString*sub_Category=#"Working";
NSString*content_Type=#"Audio";
NSString*content_Title=#"Content Title";
NSString*publisher=#"Celeritas";
NSString*content_Description=#"ContentDescription";
NSString*content_ID=#"10";
NSString*content_Source=#"http://www.celeritas-solutions.com/pah_brd_v1/productivo/productivo/pro/ali.wav";
NSString *post =[[NSString alloc] init];
post = [NSString stringWithFormat:#"category=%#&sub_Category=%#&content_Type=%#&content_Title=%#&publisher=%#&content_Description=%#&content_ID=%#&content_Source=%#",category,sub_Category,content_Type,content_Title,publisher,content_Description,content_ID,content_Source];
NSURL *url=[NSURL URLWithString:#"http://www.celeritas-solutions.com/pah_brd_v1/productivo/addData.php"];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init] ;
[request setURL:url];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];