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I have used JSON Serialization to get json response, here i'mn getting all fine, but when i need to post some values as key value pair with the URL. I have done like this, but didn't get the result. 

NSArray *objects = [NSArray arrayWithObjects:@"uname", @"pwd", @"req",nil];
NSArray *keys = [NSArray arrayWithObjects:@"ann", @"ann", @"login", nil];
NSDictionary *dict = [NSDictionary dictionaryWithObjects:keys forKeys:objects];


if ([NSJSONSerialization isValidJSONObject:dict]) {
    NSError *error;

    result = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&error];

    if (error == nil && result != nil) {
       // NSLog(@"Success");
    }
}

NSURL * url =[NSURL URLWithString:@"URL_address_VALUE/index.php"];

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60];

[request setHTTPMethod:@"POST"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request setValue:[NSString stringWithFormat:@"%d",[result length]] forHTTPHeaderField:@"Content-Length"];
[request setHTTPBody:result];

NSURLResponse *res = nil;
NSError *error = nil;

NSData *ans = [NSURLConnection sendSynchronousRequest:request returningResponse:&res error:&error];

if (error == nil) {

    NSString *strData = [[NSString alloc]initWithData:ans encoding:NSUTF8StringEncoding];

    NSLog(@"%@",strData);
}

I don't know what goes wrong here... Please dudes help me..

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You don't indicate whether any of the error checks caught anything. –  Hot Licks Jul 23 at 22:28

1 Answer

up vote 1 down vote accepted

There are multiple Errors in your Code, Use my Code as a Reference and compare it to yours and you'll get the Errors done by you. The Below code is working correctly from the Point of View of Objective-C. There are some Errors regarding your URL or Service Side.

Working Code :

NSMutableDictionary *dict = [[NSMutableDictionary alloc] initWithObjectsAndKeys:@"ann",@"uname",@"ann",@"pwd",@"login",@"req", nil];
NSLog(@"dict :: %@",dict);
NSError *error2;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dict options:kNilOptions error:&error2];
NSString *post = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
NSLog(@"postLength :: %@",postLength);
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:@"http://exemplarr-itsolutions.com/dbook/index.php"]];
[request setHTTPMethod:@"POST"];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[request setHTTPBody:postData];

NSURLResponse *response;
NSError *error3;
NSData *POSTReply = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error3];
NSString *str = [[NSString alloc] initWithData:POSTReply encoding:NSUTF8StringEncoding];
NSLog(@"str :: %@",str);
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didn't work yaar.. –  Harish Saran Jun 11 at 13:23
 
@HarishSaran : So, what's the error ? –  Vin Jun 11 at 13:25
 
NSLog didn't display anything @Vin –  Harish Saran Jun 11 at 13:32
 
@HarishSaran : Check my Update. –  Vin Jun 11 at 13:33
 
see my answer, s i have done that but same result.. –  Harish Saran Jun 11 at 13:36
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