iPhone : JSON message not creating correctly

问题

I used the following code :

    [dict setObject:[NSString stringWithFormat:@"%d",1] forKey:@"res_id"];


    //[dict setObject:categoryId forKey:@"category"];
    NSArray * values = [cartDict allValues];

    NSString *request1 = [dict JSONRepresentation];
    NSLog(request1);
    NSDictionary *req = [NSDictionary dictionaryWithObject:dict forKey:@""];

    //convert object to data
    NSData *jsonData = [NSData dataWithBytes:[request1 UTF8String] length:[request1 length]];


    //print out the data contents
    NSString *json1 = [[NSString alloc] initWithData:jsonData
                                             encoding:NSUTF8StringEncoding];

    NSLog(@"JSON>>>>>%@",json1);

回答1:

Dude your code is too messy Try this simple example hope you get your idea. It is printing the same thing that you need

NSMutableDictionary *cartDict = [[NSMutableDictionary alloc] init];
[cartDict setObject:[NSString stringWithFormat:@"%@",@"tId"] forKey:@"id"];
[cartDict setObject:[NSString stringWithFormat:@"%@",@"tname"] forKey:@"menuname"];    
[cartDict setObject:[NSString stringWithFormat:@"%@",@"tprice"] forKey:@"price"];
[cartDict setObject:[NSString stringWithFormat:@"%@",@"tquan"] forKey:@"quantity"];
NSArray *array = [NSArray arrayWithObject:cartDict];        
NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
[dict setObject:[NSString stringWithFormat:@"%@",@"personName"] forKey:@"customerName"];
[dict setObject:[NSString stringWithFormat:@"%@",@"emailid"] forKey:@"cusmailaddress"];
[dict setObject:[NSString stringWithFormat:@"%d",1] forKey:@"res_id"];
[dict setObject:array forKey:@"Order Details"];
NSLog(@"%@",dict);

回答2:

Instead of this

  NSDictionary* info=[NSDictionary dictionaryWithObject:cartDict forKey:@"Order Details"];

Try this. Put your "cartDict" dictionary into array and add that array into dictionary again to achieve your
output

来源：https://stackoverflow.com/questions/9483872/iphone-json-message-not-creating-correctly

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iphone

ios

json

nsarray

nsdictionary