Cómo publicar un valor de matriz en JSON

Quiero publicar un valor de matriz en JSON.

A continuación se muestra mi código:

-(void)getConnection { NSArray *comment=[NSArray arrayWithObjects:@"aaa",@"bbb",@"ccc",@"hello,yes,tell", nil]; NSURL *aurl=[NSURL URLWithString:@"http://sajalaya.com/taskblazer/staffend/form/iphonearraytest.php"]; NSMutableURLRequest *request=[NSMutableURLRequest requestWithURL:aurl cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; [request setHTTPMethod:@"POST"]; NSData *jsonData2 = [NSJSONSerialization dataWithJSONObject:comment options:NSJSONWritingPrettyPrinted error:nil]; NSString *new = [[NSString alloc] initWithData:jsonData2 encoding:NSUTF8StringEncoding]; // NSString *new = [comment JSONString]; // NSArray *new=[comment jsonvalue]; NSString *postString=[NSString stringWithFormat:@"tag=&comment=%@&total=%@",new,@"4"]; NSLog(@"this is post string%@",postString); [request setHTTPBody:[postString dataUsingEncoding:NSUTF8StringEncoding]]; [NSURLConnection connectionWithRequest:request delegate:self]; } 

No sabemos tu pregunta, pero mi respuesta es corta y simple. Debe usar una gran biblioteca de código abierto para esto, que es: AFNetworking , y solicite así:

 _httpClient = [[AFHTTPClient alloc] initWithBaseURL:[[NSURL alloc] initWithString:@"http://sajalaya.com"]]; [_httpClient registerHTTPOperationClass:[AFJSONRequestOperation class]]; NSData *jsonData2 = [NSJSONSerialization dataWithJSONObject:comment options:NSJSONWritingPrettyPrinted error:nil]; NSString *new = [[NSString alloc] initWithData:jsonData2 encoding:NSUTF8StringEncoding]; NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys: new, @"comment", @4, @"total, nil]; NSMutableURLRequest *request = [self.httpClient requestWithMethod:@"POST" path:@"/taskblazer/staffend/form/iphonearraytest.php" parameters:params]; request.timeoutInterval = 8; AFJSONRequestOperation *operation = [[AFJSONRequestOperation alloc] initWithRequest:request]; [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) { // success } failure:^(AFHTTPRequestOperation *operation, NSError *error) { // failure }]; 

Utilice los siguientes componentsJoinedByString operación de matriz mutable JoinedByString.

p.ej

 NSMutableArray *commennts=[NSMutableArray arrayWithObjects:@"aaa",@"bbb",@"ccc",@"hello,yes,tell", nil]; NSString* strCommentsJoin = [commennts componentsJoinedByString:@","]; // Please use your separator