请教，字典里套数组再套字典的问题

这是json数据的解析，解析这个有很多第三方啊，MJExtention、Mantle等等，想要取哪一层，直接把那一层字典转换成Model对象就好了

{
    "artworkUrl512": "http://is5.mzstatic.com/image/thumb/Purple62/v4/2a/26/39/2a263997-ccd9-0caf-f331-fe23951383a8/source/512x512bb.jpg",
    "ipadScreenshotUrls": [
        "http://a5.mzstatic.com/us/r30/Purple71/v4/7b/f5/36/7bf536f2-13f4-cc85-d25f-864676314828/screen480x480.jpeg",
        "http://a5.mzstatic.com/us/r30/Purple62/v4/77/9a/95/779a95ab-1639-d19f-e36b-7aee24107a82/screen480x480.jpeg",
        "http://a4.mzstatic.com/us/r30/Purple71/v4/e1/03/5f/e1035f33-afe8-8f30-4422-bb7613fb47a7/screen480x480.jpeg",
        "http://a4.mzstatic.com/us/r30/Purple71/v4/21/f7/4b/21f74bff-353b-babe-dad8-c95456a7677b/screen480x480.jpeg"
    ],
    "appletvScreenshotUrls": [],
    "artistViewUrl": "https://itunes.apple.com/cn/developer/halfbrick-studios/id356994313?uo=4",
    "artworkUrl60": "http://is5.mzstatic.com/image/thumb/Purple62/v4/2a/26/39/2a263997-ccd9-0caf-f331-fe23951383a8/source/60x60bb.jpg",
    "artworkUrl100": "http://is5.mzstatic.com/image/thumb/Purple62/v4/2a/26/39/2a263997-ccd9-0caf-f331-fe23951383a8/source/100x100bb.jpg",
    "kind": "software",
    "features": [
        "gameCenter",
        "iosUniversal"
    ],
    "supportedDevices": [
        "iPhone4",
        "iPad2Wifi",
        "iPad23G",
        "iPhone4S",
        "iPadThirdGen",
        "iPadThirdGen4G",
        "iPhone5",
        "iPodTouchFifthGen",
        "iPadFourthGen",
        "iPadFourthGen4G",
        "iPadMini",
        "iPadMini4G",
        "iPhone5c",
        "iPhone5s",
        "iPhone6",
        "iPhone6Plus",
        "iPodTouchSixthGen"
    ],
    "screenshotUrls": [
        "http://a1.mzstatic.com/us/r30/Purple62/v4/f4/ae/0c/f4ae0cca-46e7-d84f-53ad-aa809cf7fbf7/screen696x696.jpeg",
        "http://a5.mzstatic.com/us/r30/Purple62/v4/87/eb/18/87eb182e-4171-792d-51fd-b8f0c4345602/screen696x696.jpeg",
        "http://a5.mzstatic.com/us/r30/Purple62/v4/7a/b8/3f/7ab83f13-363e-5ed8-5e55-44231b8ab6b0/screen696x696.jpeg",
        "http://a3.mzstatic.com/us/r30/Purple62/v4/a9/dc/98/a9dc983c-6816-85de-f4b8-c9a12941a2f2/screen696x696.jpeg"
    ],
    "advisories": [],
    "isGameCenterEnabled": true,
    "fileSizeBytes": "114278400",
    "sellerUrl": "http://fruitninja.com/",
    "userRatingCountForCurrentVersion": 206,
    "trackContentRating": "4+",
    "averageUserRatingForCurrentVersion": 4,
    "languageCodesISO2A": [
        "EN",
        "ZH",
        "ZH"
    ],
    "trackCensoredName": "水果忍者 (官方正版 Fruit Ninja Free)",
    "trackViewUrl": "https://itunes.apple.com/cn/app/shui-guo-ren-zhe-guan-fang/id403858572?mt=8&uo=4",
    "contentAdvisoryRating": "4+",
    "minimumOsVersion": "7.0",
    "currency": "CNY",
    "wrapperType": "software",
    "version": "2.4.0",
    "artistId": 356994313,
    "artistName": "Halfbrick Studios",
    "genres": [
        "游戏",
        "娱乐",
        "街机游戏",
        "动作游戏"
    ],
    "price": 0,
    "description": "切水果，别切炸弹 – 这就是你体验令人欲罢不能的《Fruit Ninja》唯一需要记住的！从这里开始，探索“经典”、“禅宗”和粉丝最爱的“街机”模式的细微差别，从而精进你的切水果技能。努力切到最高分，使用强力道具和特殊香蕉让效果最大化，并在石榴狂切中拼命挥舞剑刃。\n\n来自 Fruitasia 神奇世界的多位角色将加入挑战。Katsuro 和 Mari 将在游戏过程中给你指导，带你从切水果新手成长为全能切片机！\n\n永远没有别的时光比玩《Fruit Ninja》更加畅爽，挥舞你的剑，从头开始尽情体验这款游戏的全新内容。这只是开始 – 我们已经等不及让每个人都加入我们的切水果大军！\n\n\n重要通知\n\n本游戏包含可选的应用内购买内容。你可以在设备的设置菜单中禁用此功能。\n\n前往 http://halfbrick.com/pp 阅读我们的隐私权政策\n前往 http://halfbrick.com/tos 阅读我们的服务条款",
    "bundleId": "com.halfbrick.FruitNinjaLite",
    "trackId": 403858572,
    "trackName": "水果忍者 (官方正版 Fruit Ninja Free)",
    "releaseDate": "2010-12-20T08:00:00Z",
    "primaryGenreName": "Games",
    "isVppDeviceBasedLicensingEnabled": true,
    "currentVersionReleaseDate": "2016-10-04T07:33:34Z",
    "releaseNotes": "本次更新包括修复一些bug和做出少许改进。欢迎您一如以往地向我们反馈宝贵意见。",
    "sellerName": "Halfbrick",
    "primaryGenreId": 6014,
    "formattedPrice": "免费",
    "genreIds": [
        "6014",
        "6016",
        "7003",
        "7001"
    ],
    "averageUserRating": 4.5,
    "userRatingCount": 207272
}
https://itunes.apple.com/search?term=game&country=cn&entity=software
如上面所示：这是Apple的公开接口数据，返回是一个数组，我从中取了一条，一般获取数据后转成Model或者不转也可以，不用Modle的方法很简单，如果我要获取到上面@“ipadScreenshotUrls”数组的数据，可：NSArray *LSList = self.DataList[0][@"ipadScreenshotUrls"]
如果要转成Model的话，可以用可以使用第三方框架，一般文档上都有嵌套字典或数组的方法，我在项目中常用的MJExtension，楼上那位兄弟你打错了一个字母：MJExtension，https://github.com/CoderMJLee/MJExtension文档上是有介绍的：官方的例子我直接就不粘贴了，用上面的JSON来说明，
1、新建一个Modle类：//
//  Model.h
#import <Foundation/Foundation.h>
@interface Model : NSObject
@property (nonatomic, copy) NSString *primaryGenreName;
@property (nonatomic, copy) NSString *artworkUrl100;
//@property (nonatomic, copy) NSString *sellerUrl;
@property (nonatomic, copy) NSString *currency;
@property (nonatomic, copy) NSString *artworkUrl512;
@property (nonatomic, strong) NSArray<NSString *> *ipadScreenshotUrls;
@property (nonatomic, copy) NSString *fileSizeBytes;
@property (nonatomic, strong) NSArray<NSString *> *genres;
@property (nonatomic, strong) NSArray<NSString *> *languageCodesISO2A;
@property (nonatomic, copy) NSString *artworkUrl60;
@property (nonatomic, strong) NSArray<NSString *> *supportedDevices;
@property (nonatomic, copy) NSString *trackViewUrl;
@property (nonatomic, copy) NSString *Description;
@property (nonatomic, copy) NSString *version;
@property (nonatomic, copy) NSString *bundleId;
@property (nonatomic, copy) NSString *artistViewUrl;
@property (nonatomic, assign) BOOL isGameCenterEnabled;
@property (nonatomic, copy) NSString *wrapperType;
@property (nonatomic, copy) NSString *releaseDate;
@property (nonatomic, strong) NSArray<NSString *> *genreIds;
@property (nonatomic, assign) NSInteger trackId;
@property (nonatomic, copy) NSString *minimumOsVersion;
@property (nonatomic, copy) NSString *formattedPrice;
@property (nonatomic, copy) NSString * primaryGenreId;
@property (nonatomic, copy) NSString *currentVersionReleaseDate;
@property (nonatomic, copy) NSString * artistId;
@property (nonatomic, copy) NSString *trackContentRating;
@property (nonatomic, copy) NSString *artistName;
@property (nonatomic, copy) NSString *price;
@property (nonatomic, copy) NSString *trackCensoredName;
@property (nonatomic, copy) NSString *trackName;
@property (nonatomic, copy) NSString *kind;
@property (nonatomic, strong) NSArray<NSString *> *features;
@property (nonatomic, copy) NSString *contentAdvisoryRating;
@property (nonatomic, strong) NSArray<NSString *> *screenshotUrls;
@property (nonatomic, assign) BOOL isVppDeviceBasedLicensingEnabled;
@property (nonatomic, copy) NSString *sellerName;
@property (nonatomic, strong) NSArray<NSString *> *advisories;
@end2、在Controller中用一个HomeDataList保存数据，在获取到数据后通过MJExtension框架把JSON转成Modle并保存到数组中：
/**
*  apple公开接口
*/
#define APPLE_SERVER @"https://itunes.apple.com/search?term=game&country=cn&entity=software"
NSURL *url = [NSURL URLWithString:APPLE_SERVER];
    //POST请求，设置30S超时
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc]initWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60];
    [request setHTTPMethod:@"POST"];
    NSURLSession *session = [NSURLSession sharedSession];
    NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request
                                                completionHandler:
                                      ^(NSData *data, NSURLResponse *response, NSError *error) {


                                          //在主线程中更新UI
                                          dispatch_async(dispatch_get_main_queue(), ^{
                                              [MBProgressHUD hideHUDForView:self.view animated:YES];
                                              if(data != nil)
                                              {
                                                  NSDictionary *res = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
                                                  NSLog(@"服务器返回的数据===%@",res);
                                                  self.HomeDataList = [Model mj_objectArrayWithKeyValuesArray: [res objectForKey:@"results"]];


                                                  //获取数据

                                                  //updata

                                                  [self.collectionView reloadData];
                                              }else
                                              {
                                                  //如果获取失败
                                                  NSLog(@"请求失败=======%@",error);
                                              }
                                          });

                                      }];
    //使用resume方法启动任务
    [dataTask resume];3、从数组中取值：从JSON的结构来看，符合楼主说的字典里套数组在套字典的结构，整体是一个字典，字典理由一个数组，数组里存的是字典；
通过Model取值,：Modle *MD =  self.HomeDataList[0]；
NSArry *LSList = MD.ipadScreenshotUrls
4、使用：Modle *MD =  self.HomeDataList[0]；
NSArry *LSList = MD.ipadScreenshotUrls
NSLog(@"=========%@",LSList[0])

请看Git上的demo，https://github.com/dengfeng520/layoutDemo.git

用楼主的数据来说明：

NSString *plistPath = [[NSBundle mainBundle] pathForResource:@"plistFile" ofType:@"plist"];  //plistFile是plist文件名
    NSDictionary *data = [[NSDictionary alloc] initWithContentsOfFile:plistPath];
NSString *StrCode = data[@"限定"][0][@"JP"];

调试易

请教，字典里套数组再套字典的问题

解决方案 »