Two ways to pass JSON data to the server

When it comes to transmitting JSON data to the server, how can I upload the parameters to the server in JSON form? Here's how to get the JSON string. There are a total of two ways to get the JSON string. Of course, uploading to the server, cannot pass the string, is to turn into NSData, that is, the binary form. This is not discussed here, just say, how to get the JSON string.

- (void) viewdidload{[Super Viewdidload]; //Do any additional setup after loading the view. //The first method is to combine the parameters to be passed into an array, and then convert the dictionary to a string by Jsonkitnsdictionary* jsondic = [Nsdictionary Dictionarywithobjectsandkeys:@"Li Hua",@"name",@"female",@"Sex",@" -",@" Age", nil]; NSString*jsonstring=[Jsondic jsonstring]; NSLog (@"---jsonstring----%@", jsonstring); //The second method is to directly combine strings in JSON form. This method is suitable for the comparison of the order of the parameters with special requirements. Otherwise, it looks a little cumbersome. NSString *jsonstringother=[nsstring stringWithFormat:@"{\"Name\": \ "%@\", \ "sex\": \ "female \", \ "age\": \ "20\"}",@"Li Hua"]; NSLog (@"-----jsonstringother---%@", Jsonstringother); }

Printing results:

 the- .- at  -: -:58.765Two ways to pass JSON data to the server [13692: 60b]---jsonstring----{"Sex":"female","name":"Li Hua"," Age":" -"} the- .- at  -: -:58.767Two ways to pass JSON data to the server [13692: 60b]-----jsonstringother---{"name":"Li Hua","Sex":"female"," Age":" -"}