如何从 JSON 树中检索特定的 ID

Question

我可以在 table 视图中打印 sub_category 和 products，它工作正常，但我无法打印 id 的特定详细信息，例如我如何才能打印 products_id=213 的详细信息以获得 name,image,model?

我的 table 视图看起来像这样 [categories>name] 然后 [sub_category>name] 然后我需要选择的 products_id name,image,model

我正在使用 segue

我的JSON:

{"categories":[
{"category_id":"100","name":"Shop By Room","sub_category":[
{"category_id":"72","name":"BEDROOM","sub_category":0,"product_total":"11","products":[
{"product_id":"138","name":"Jewellery  Holder","description":"","meta_description":"","meta_keyword":"","tag":"","model":"28223","sku":"1050426","upc":"","ean":"","jan":"","isbn":"","mpn":"","location":"","quantity":"6","stock_status":"In Stock","image":"data\/bedroom\/28223-clear.jpg","manufacturer_id":null,"manufacturer":null,"price":"0.0000","special":null,"reward":"0","points":"0","tax_class_id":"0","weight_class_id":"1","length":"0.00000000","width":"0.00000000","height":"0.00000000","length_class_id":"1","subtract":"1","rating":0,"reviews":0,"minimum":"1","sort_order":"1","status":"1","viewed":"18"},
{"product_id":"139","name":"Jewellery Holder","description":"","meta_description":"","meta_keyword":"","tag":"","model":"28223","sku":"1050507","upc":"","ean":"","jan":"","isbn":"","mpn":"","location":"","quantity":"6","stock_status":"In Stock","image":"data\/bedroom\/28223-green.jpg","manufacturer_id":null,"manufacturer":null,"price":"0.0000","special":null,"reward":"0","points":"0","tax_class_id":"0","weight_class_id":"1","length":"0.00000000","width":"0.00000000","height":"0.00000000","length_class_id":"1","subtract":"1","rating":0,"reviews":0,"minimum":"1","sort_order":"1","status":"1","viewed":"6"},
{"product_id":"136","name":"Mirror","description":"","meta_description":"","meta_keyword":"","tag":"","model":"28225","sku":"1050509","upc":"","ean":"","jan":"","isbn":"","mpn":"","location":"","quantity":"6","stock_status":"Out Of Stock","image":"data\/bedroom\/28225-green.jpg","manufacturer_id":null,"manufacturer":null,"price":"0.0000","special":null,"reward":"0","points":"0","tax_class_id":"0","weight_class_id":"1","length":"0.00000000","width":"0.00000000","height":"0.00000000","length_class_id":"1","subtract":"1","rating":0,"reviews":0,"minimum":"1","sort_order":"1","status":"1","viewed":"6"},
{"product_id":"137","name":"Mirror","description":"","meta_description":"","meta_keyword":"","tag":"","model":"28225","sku":"1050430","upc":"","ean":"","jan":"","isbn":"","mpn":"","location":"","quantity":"6","stock_status":"In Stock","image":"data\/bedroom\/28225-clear.jpg","manufacturer_id":null,"manufacturer":null,"price":"0.0000","special":null,"reward":"0","points":"0","tax_class_id":"0","weight_class_id":"1","length":"0.00000000","width":"0.00000000","height":"0.00000000","length_class_id":"1","subtract":"1","rating":0,"reviews":0,"minimum":"1","sort_order":"1","status":"1","viewed":"6"},
{"product_id":"213","name":"Night Light","description":"","meta_description":"","meta_keyword":"","tag":"","model":"15478","sku":"1064373","upc":"","ean":"","jan":"","isbn":"","mpn":"","location":"","quantity":"1","stock_status":"In Stock","image":"data\/timeless-lighting\/15478-1050517-clear.png","manufacturer_id":null,"manufacturer":null,"price":"0.0000","special":null,"reward":"0","points":"0","tax_class_id":"0","weight_class_id":"1","length":"0.00000000","width":"0.00000000","height":"0.00000000","length_class_id":"1","subtract":"1","rating":0,"reviews":0,"minimum":"1","sort_order":"1","status":"1","viewed":"4"}]},

{"category_id":"67","name":"DINING ROOM","sub_category":0,"product_total":"74","products":[
{"product_id":"248","name":"Amuse Bouche","description":"","meta_description":"","meta_keyword":"","tag":"","model":"28106","sku":"1056479","upc":"","ean":"","jan":"","isbn":"","mpn":"","location":"","quantity":"6","stock_status":"In Stock","image":"data\/dining\/28106-ambience.jpg","manufacturer_id":null,"manufacturer":null,"price":"0.0000","special":null,"reward":"0","points":"0","tax_class_id":"0","weight_class_id":"1","length":"0.00000000","width":"0.00000000","height":"0.00000000","length_class_id":"1","subtract":"1","rating":0,"reviews":0,"minimum":"1","sort_order":"1","status":"1","viewed":"17"},
{"product_id":"239","name":"Amuse Bouche","description":"","meta_description":"","meta_keyword":"","tag":"","model":"25369","sku":"1050857","upc":"","ean":"","jan":"","isbn":"","mpn":"","location":"","quantity":"6","stock_status":"In Stock","image":"data\/dining\/25369-1050857-clear.png","manufacturer_id":null,"manufacturer":null,"price":"0.0000","special":null,"reward":"0","points":"0","tax_class_id":"0","weight_class_id":"1","length":"0.00000000","width":"0.00000000","height":"0.00000000","length_class_id":"1","subtract":"1","rating":0,"reviews":0,"minimum":"1","sort_order":"1","status":"1","viewed":"13"}

。 . .

我的代码：

-(void)run{

  AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate];

  for (NSDictionary *dict in [appDelegate.dic objectForKey:@"categories"]) {

      if (![dict[@"name"] isEqualToString:_subModel]) continue;

      for (NSDictionary *subcategory in [dict valueForKey:@"sub_category"])
      {
            if (![subcategory[@"name"] isEqualToString:_item]) continue;

            for (NSDictionary *product in subcategory[@"products"]) {

              //Update
              itemDetail *item = [[itemDetail alloc]init];
              item.strId = product[@"product_id"];
              item.strName = product[@"name"];
              item.strImage = product[@"image"];

              [_arrayItem addObject:product];

              NSLog(@"ITEM: %@", _arrayItem);
              //NSLog(@" %@, %@, %@", item.strId, item.strName, item.strImage);

              [_arraySubCategory addObject:product[@"name"]];
          }
      }
  }
}

Answer 1

创建一个产品对象，将名称、图像等作为其属性。然后将此对象添加到您的数组中。

.
.
.
for (NSDictionary *product in subcategory[@"products"]) {
          Product *product = [[Product alloc]init]; 
          product.name = product[@"name"];
          product.image = product[@"image"]; //and so on
          [_arraySubCategory addObject:product];
      }

现在，当您想从数组中获取数据时，

for (Product *product in _arraySubCategory)
{
    if([product.name isEqualToString:@"abc"])
    {
       NSLog(@"%@",product.name);
      //do what you want.
    }
}

如何从 JSON 树中检索特定的 ID

How to retrieve specific id from JSON tree

json

nsdictionary

ios