如何使用* ngFor和访问键,对象的值显示json对象

时间:2016-11-08 06:38:09

标签: json object angular typescript ionic2

我想在ionic 2中显示来自服务器的以下数据。 并使用*ngFor访问对象的

我希望使用*ngFor动态显示此对象。怎么弄明白?

问题是否有更简单的解决方案,因为我觉得使用Angular2的开发人员显示此类json数据会非常常见。

{
    "status": "success",
    "products": {
        "Admiranda": [
            {
                "entity_id": "448",
                "sku": "587",
                "name": "# Adm Ape Maia EDT 50 ml 75009 (9)",
                "image_url": "/path/media/catalog/product/cache/5/8/587.png",
                "url_key": "/path/adm-ape-maia-edt-50-ml-75009-9",
                "price": "15,000",
                "symbol": "LBP ",
                "qty": 0,
                "rating": 0,
                "wishlist": false,
                "specialprice": "7,500",
                "brand": "Admiranda"
            },
            {
                "entity_id": "435",
                "sku": "571",
                "name": "# Adm Aveng Liquid Soap 300ml 73680(3)",
                "image_url": "/path/media/catalog/product/cache/5/7/571.png",
                "url_key": "/path/adm-aveng-liquid-soap-300ml-73680-3",
                "price": "5,000",
                "symbol": "LBP ",
                "qty": 0,
                "rating": 0,
                "wishlist": false,
                "specialprice": "2,500",
                "brand": "Admiranda"
            }
        ],
        "Weider": [
            {
                "entity_id": "306",
                "sku": "386",
                "name": "32 % Whey Wafer bar choco 35 g",
                "image_url": "/path/media/catalog/product/cache/3/2/32_whey_wafer.png",
                "url_key": "/path/32-whey-wafer-bar-choco-35-g",
                "price": "5,910",
                "symbol": "LBP ",
                "qty": 0,
                "rating": 0,
                "wishlist": false,
                "specialprice": "3,842",
                "brand": "Weider"
            },
            {
                "entity_id": "337",
                "sku": "650",
                "name": "52% Protein Bar Cherry-Yog 50g",
                "image_url": "/path/media/catalog/product/cache/5/2/52_protein_2.png",
                "url_key": "/path/52-protein-bar-cherry-yog-50g",
                "price": "6,819",
                "symbol": "LBP ",
                "qty": 0,
                "rating": 0,
                "wishlist": false,
                "specialprice": "4,432",
                "brand": "Weider"
            }
        ],
        "Yoomi": [
            {
                "entity_id": "303",
                "sku": "638",
                "name": "5oz feeding bottle+slow flow teat (2 of)",
                "image_url": "/path/media/catalog/product/cache/6/3/638.png",
                "url_key": "/path/5oz-feeding-bottle-slow-flow-teat-2-of",
                "price": "30,909",
                "symbol": "LBP ",
                "qty": 0,
                "rating": 0,
                "wishlist": false,
                "specialprice": "21,636",
                "brand": "Yoomi"
            }
        ],
        "Cosmetic products": [
            {
                "entity_id": "519",
                "sku": "736",
                "name": "Bebble Body cream",
                "image_url": "/path/media/catalog/product/cache/b/e/bebble_body_cream_175_ml.736_1.png",
                "url_key": "/path/bebble-body-cream",
                "price": "20,909",
                "symbol": "LBP ",
                "qty": 0,
                "rating": 0,
                "wishlist": false,
                "specialprice": "10,455",
                "brand": "Cosmetic products"
            },
            {
                "entity_id": "517",
                "sku": "734",
                "name": "Bebble Body milk",
                "image_url": "/path/media/catalog/product/cache/b/e/bebble_body_milk_200_ml.734.png",
                "url_key": "/path/bebble-body-milk",
                "price": "18,182",
                "symbol": "LBP ",
                "qty": 0,
                "rating": 0,
                "wishlist": false,
                "specialprice": "9,091",
                "brand": "Cosmetic products"
            }
        ],
        "Dialfa": [
            {
                "entity_id": "483",
                "sku": "184",
                "name": "Dialfa HK LipStick Amber 1955 (3)",
                "image_url": "/path/media/catalog/product/cache/4/_/4_1.png",
                "url_key": "/path/dialfa-hk-lipstick-amber-1955-3",
                "price": "4,500",
                "symbol": "LBP ",
                "qty": 0,
                "rating": 0,
                "wishlist": false,
                "specialprice": "2,250",
                "brand": "Dialfa"
            },
            {
                "entity_id": "495",
                "sku": "323",
                "name": "Dlf  Lip Balm Cindrella 0859 (3)",
                "image_url": "/path/media/catalog/product/cache/1/2/12.png",
                "url_key": "/path/dlf-lip-balm-cindrella-0859-3",
                "price": "4,500",
                "symbol": "LBP ",
                "qty": 0,
                "rating": 0,
                "wishlist": false,
                "specialprice": "2,250",
                "brand": "Dialfa"
            },
            {
                "entity_id": "503",
                "sku": "368",
                "name": "DLF Baby Kitty Sham&Dush250ml0552(8)",
                "image_url": "/path/media/catalog/product/cache/h/k/hk_368.png",
                "url_key": "/path/dlf-baby-kitty-sham-dush250ml0552-8",
                "price": "6,000",
                "symbol": "LBP ",
                "qty": 0,
                "rating": 0,
                "wishlist": false,
                "specialprice": "3,000",
                "brand": "Dialfa"
            },
            {
                "entity_id": "506",
                "sku": "397",
                "name": "DLF Bagno Guanto Sponge WTP 0044 (5)",
                "image_url": "/path/media/catalog/product/cache/3/9/397.png",
                "url_key": "/path/dlf-bagno-guanto-sponge-wtp-0044-5",
                "price": "8,000",
                "symbol": "LBP ",
                "qty": 0,
                "rating": 0,
                "wishlist": false,
                "specialprice": "4,000",
                "brand": "Dialfa"
            }
        ],
        "Nevella": [
            {
                "entity_id": "277",
                "sku": "118",
                "name": "Nevella Probiotics 100 Tabs",
                "image_url": "/path/media/catalog/product/cache/n/e/nevella2.png",
                "url_key": "/path/nevella-probiotics-100-tabs",
                "price": "5,139",
                "symbol": "LBP ",
                "qty": 0,
                "rating": 0,
                "wishlist": false,
                "specialprice": "4,111",
                "brand": "Nevella"
            },
            {
                "entity_id": "280",
                "sku": "159",
                "name": "Nevella Probiotics 2,000 Sachets",
                "image_url": "/path/media/catalog/product/cache/u/n/untitled_1.png",
                "url_key": "/path/nevella-probiotics-2-000-sachets",
                "price": "103,637",
                "symbol": "LBP ",
                "qty": 0,
                "rating": 0,
                "wishlist": false,
                "specialprice": "103,637",
                "brand": "Nevella"
            }
        ],
        "Medi Baby": [
            {
                "entity_id": "549",
                "sku": "778",
                "name": "Wet Wipes Medi Baby 100 pcs",
                "image_url": "/path/media/catalog/product/cache/7/7/778.png",
                "url_key": "/path/wet-wipes-medi-baby-100-pcs",
                "price": "3,500",
                "symbol": "LBP ",
                "qty": 0,
                "rating": 0,
                "wishlist": false,
                "specialprice": "2,625",
                "brand": "Medi Baby"
            }
        ]
    }
}

2 个答案:

答案 0 :(得分:2)

*ngfor循环中打印 Admiranda 数组,首先写一个管道

<强> Pipe.ts

@Pipe({
  name: 'objectValues'
})
export class ObjectValuesPipe implements PipeTransform {
  transform(obj: any) {
    let result = [];
    for (var key in obj) {
      if (obj.hasOwnProperty(key)) {
        result.push(obj[key]);
      }
    }
    return result;
  }
}

不要忘记在@NgModule中导入管道,而不是像这样使用此管道

<ul *ngFor="let item of items">
   <li *ngFor="let value of item | objectValues">
     {{ value }}
   </li>
 </ul>

答案 1 :(得分:0)

您可以将keyvalue管道用于json。

看看下面的例子:

<select>
    <option *ngFor="let item of json | keyvalue" value="{{ item.key }}">
        {{ item.value }}
    </option>
</select>