ios - 如何定义一个类获取JSON数据

Question

需要处理的JSON数据中一个数组元素如下，请问如何定义一个类获取它的数据（目的是把获取的数据展示在一个tableview的cell中），我需要获取text，user里的screen name和profile_image_url所指向的图像数据。我遇到的问题是在定义一个这样的类时，user是不是要再定义一个类？在类里不能镶嵌一个类吧？如何定义它才能在后续处理中成功地将数据加载在tableview中？

{
    "created_at": "Wed May 22 17:18:51 +0800 2013",
    "id": 3580806792992860,
    "mid": "3580806792992860",
    "idstr": "3580806792992860",
    "text": "服务器【星耀银河】国家【燕】 　浮沉江山英雄定，新的征程从五月十七号重新开始，谁将能主宰星耀银河，谁又将是新兴的霸主？  随着一声惊雷，小史降临到了燕国这片热土上，呼吸着新鲜的空……看全文点这 http://t.cn/zHy3fnC",
    "source": "<a href=\"http://app.weibo.com/t/feed/4ZcXia\" rel=\"nofollow\">征途2国史应用</a>",
    "favorited": false,
    "truncated": false,
    "in_reply_to_status_id": "",
    "in_reply_to_user_id": "",
    "in_reply_to_screen_name": "",
    "pic_urls": [],
    "geo": null,
    "user": {
        "id": 2866880570,
        "idstr": "2866880570",
        "screen_name": "开心惊玄",
        "name": "开心惊玄",
        "province": "33",
        "city": "10",
        "location": "浙江 台州",
        "description": "",
        "url": "",
        "profile_image_url": "http://course.gdou.com/gxk/html/hw/1.jpg",
        "profile_url": "u/2866880570",
        "domain": "",
        "weihao": "",
        "gender": "m",
        "followers_count": 131,
        "friends_count": 239,
        "statuses_count": 229,
        "favourites_count": 0,
        "created_at": "Wed Jul 11 19:16:18 +0800 2012",
        "following": false,
        "allow_all_act_msg": false,
        "geo_enabled": true,
        "verified": false,
        "verified_type": -1,
        "remark": "",
        "allow_all_comment": true,
        "avatar_large": "http://course.gdou.com/gxk/html/hw/2866880570180399998954401.jpg",
        "verified_reason": "",
        "follow_me": false,
        "online_status": 0,
        "bi_followers_count": 91,
        "lang": "zh-cn",
        "star": 0,
        "mbtype": 0,
        "mbrank": 0,
        "block_word": 0
    },
    "reposts_count": 0,
    "comments_count": 0,
    "attitudes_count": 0,
    "mlevel": 0,
    "visible": {
        "type": 0,
        "list_id": 0
    }
},

Answer 1

• User是需要再定義一下類別的.

• 一個 swift 檔案是可以有多個類別的；

class Results: NSObject {
    var created_at: String? 
    var user: User?
}
class User: NSObject {
    var idstr: String?
}