iOS 构造json并提交到服务器

这是服务器要求提交的json数据格式：

         data: [

        {

            "good_id": "2168",

            "participants_number": "1",

        }

        {

            "good_id": "2169",

            "participants_number": "3",

        }

    ]

1、构造json并提交数据：

- (void) commitOrder:(NSArray *)good_orderAry{

    //构造json

    NSMutableArray *paramDataAry = [NSMutableArray
array];

   

    [good_orderAry enumerateObjectsUsingBlock:^(id 
_Nonnull obj, NSUInteger idx,
BOOL * _Nonnull stop) {

        NSDictionary *dataDic = (NSDictionary *)obj;

        

        NSMutableDictionary <NSString *,
NSString*> *dicParam = [NSMutableDictionary<NSString*,NSString*>
dictionaryWithCapacity:2];

        [dicParam
setObject:dataDic[@"good_id"]
forKey:@"good_id"];

        [dicParam
setObject:dataDic[@"participants_number"]
forKey:@"participants_number"];

        

        [paramDataAry addObject dicParam];

    }];

    

    NSData *jsonData = [NSJSONSerialization
dataWithJSONObject:paramDataAry
options:NSJSONWritingPrettyPrinted
error:nil];

    NSString *jsonString = [[NSString
alloc] initWithData:jsonData
encoding:NSUTF8StringEncoding];

    NSDictionary *param =
@{@"data": jsonString};

   //提交json数据，AFHTTPSessionManager封装的接口

    [PostHttpRequest url:COMMIT_ORDER
parameters: param
progress:^(NSProgress *uploadProgress) {

        

    } blockCompletion:^(NSDictionary *dataDic) {

        self.resultCommitOrderDic = dataDic;

    } failure:^{

    }];

}

//有疑问可以一块讨论：我的qq：1246489125