AFNetworking和jSON

Question

我正在关注来自web服务api的json响应.我想从json中提取产品数据.我还想使用AFNetworking实现这一点.

 {"products": [
    {
      "product_id": "1170",
      "name": "zzzz®",
      "sort_order": 0,
      "brand": "zzzas",
      "product_category_id": "1090",
      "location_ids": [
        "1078"
      ],
      "icon_url": "http://zzzzz.com/media/2502/zzzz.png",
      "icon_date": "Wed, 07 Nov 2012 14:03:47 GMT",
      "thumbnail_url": "http://zzzz.com/media/2591/zzdfs.png",
      "thumbnail_date": "Wed, 07 Nov 2012 14:04:02 GMT"
    },
    {
      "product_id": "1126",
      "name": "ddddd®",
      "sort_order": 1,
      "brand": "dddsas",
      "product_category_id": "1110",
      "location_ids": [
        "1095"
      ],
      "icon_url": "http://zzzzz.com/media/2507/ddddd.png",
      "icon_date": "Wed, 07 Nov 2012 14:03:48 GMT",
      "thumbnail_url": "http://zzzzz.com/media/2596/sssds.png",
      "thumbnail_date": "Wed, 07 Nov 2012 14:04:05 GMT"
    }
]}

任何人都可以建议一种方法来完成这些.事情.

Answer 1

NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"link"]];
AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request 
    success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
        NSDictionary *jsonDict = (NSDictionary *) JSON;
        NSArray *products = [jsonDict objectForKey:@"products"];
        [products enumerateObjectsUsingBlock:^(id obj,NSUInteger idx, BOOL *stop){
            NSString *productIconUrl = [obj objectForKey:@"icon_url"];
        }];

    } failure:^(NSURLRequest *request, NSHTTPURLResponse *response,
        NSError *error, id JSON) {
            NSLog(@"Request Failure Because %@",[error userInfo]); 
    }
];

[operation start];

试试这个.

更新1:您可以尝试这个https://github.com/SSamanta/SSRestClient

更新2:https://github.com/SSamanta/SSHTTPClient(使用Swift)

可用Pod: pod 'SSHTTPClient', '~>1.2.2'

Answer 2

如果您使用的是AFNetworking 3.0,AFJSONRequestOperation则不再存在,您必须使用AFHTTPSessionManager:

AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
[manager GET:@"http://example.com/resources.json" parameters:nil progress:nil success:^(NSURLSessionTask *task, id responseObject) {
    NSLog(@"JSON: %@", responseObject);
} failure:^(NSURLSessionTask *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];