Iphone iOS5 JSON解析与子级
我尝试用iOS5解析Json提要 我的Json文件如下所示:Iphone iOS5 JSON解析与子级,iphone,json,ios5,Iphone,Json,Ios5,我尝试用iOS5解析Json提要 我的Json文件如下所示: { "status": "ok", "count": 18, "count_total": 2248, "pages": 125, "posts": [ { "id": 31781, "type": "post", "slug": "aaa", "url": "http:\/\/www.example.com\/videos\/aaa.html", "
{
"status": "ok",
"count": 18,
"count_total": 2248,
"pages": 125,
"posts": [
{
"id": 31781,
"type": "post",
"slug": "aaa",
"url": "http:\/\/www.example.com\/videos\/aaa.html",
"status": "publish",
"title": "my Title",
"title_plain": "My Title",
"content": "<p>Jdfkdfkjkjdfklfdkldfkldfklfkdld.<\/p>\n",
"excerpt": "Jdfkdfkjkjdfklfdkldfkldfklfkdlds.",
"date": "2012-01-26 07:38:29",
"modified": "2012-01-26 07:38:29",
"categories": [
{
"id": 4,
"slug": "videos",
"title": "Videos",
"description": "",
"parent": 0,
"post_count": 476
}
],
"tags": [],
"author": {
"id": 4,
"slug": "author",
"name": "Au Thor",
"first_name": "",
"last_name": "",
"nickname": "Au Thor",
"url": "",
"description": ""
},
"attachments": [
{
"id": 31784,
"url": "http:\/\/www.example.com\/wp-content\/uploads\/2012\/01\/primo.jpg",
"slug": "primo",
"title": "primo",
"description": "",
"caption": "",
"parent": 31781,
"mime_type": "image\/jpeg",
"images": {
"full": {
"url": "http:\/\/www.example.com\/wp-content\/uploads\/2012\/01\/primo.jpg",
"width": 620,
"height": 389
},
"thumbnail": {
"url": "http:\/\/www.example.com\/wp-content\/uploads\/2012\/01\/primo-150x75.jpg",
"width": 150,
"height": 75
},
"medium": {
"url": "http:\/\/www.example.com\/wp-content\/uploads\/2012\/01\/primo.jpg",
"width": 620,
"height": 389
},
"large": {
"url": "http:\/\/www.example.com\/wp-content\/uploads\/2012\/01\/primo.jpg",
"width": 620,
"height": 389
}
}
}
],
"comment_count": 1,
"comment_status": "open",
"thumbnail": "http:\/\/www.example.com\/wp-content\/uploads\/2012\/01\/primo-150x75.jpg"
},
NSArray* latestArticles = [json objectForKey:@"posts"];
NSDictionary* Article = [latestArticles objectAtIndex:0];
NSString *Titre = [Article objectForKey:@"title"];
但是我怎样才能访问attachement>image>full>url字段呢
我迷路了,新的JSON
谢谢你的帮助,我还没有测试过,但我相信会的
NSArray *allPosts = [json objectForKey:@"posts"];
NSDictionary *firstPost = [allPosts objectAtIndex:0];
NSArray *allAttachments = [firstPost objectForKey:@"attachments"];
NSDictionary *firstAttachment = [allAttachments objectAtIndex:0];
NSDictionary *allImages = [firstAttachment objectForKey:@"images"];
NSDictionary *fullImage = [allImages objectForKey:@"full"];
NSString *urlString = [fullImage objectForKey:@"url"];
使用
NSJSONSerialization
如果看到[]
对象将是NSArray
,如果看到{}
对象将是NSDictionary
你也可以通过
NSArray *posts=json[@"posts"];
NSDictionary *newArticle=posts[0];
NSString *title=newArticle[@"title"];
记住Objective-c实际上是具有面向对象概念的c语言。您也可以应用基本c代码或基本c语法。:)