在 Angular2 中迭代 JSON 里面的 JSON

Question

嗨，我是 angular2 的新手，我想迭代 JSON 对象中的 JSON 我的JSON如下图

{"items":[{"id":564,"sku":"MB570Z\/B","name":"Mini DisplayPort to DVI Adapter","attribute_set_id":4,"price":2800,"status":1,"visibility":4,"type_id":"simple","created_at":"2017-08-31 04:49:57","updated_at":"2017-08-31 05:06:31","weight":1,"extension_attributes":[],"product_links":[],"tier_prices":[],"custom_attributes":[{"attribute_code":"description","value":"Every Mac with a Mini DisplayPort allows you to connect an external display or projector using an adapter. You can use an external display as your main workspace or to extend your desktop, or you can work in mirrored mode with a projector so you can view what your audience sees.\r\nUse the Mini DisplayPort to DVI Adapter to connect an advanced digital monitor, such as the 20- or 23-inch Apple Cinema Display, that includes a DVI connector. Review the documentation or check with the manufacturer of your monitor to make sure you're choosing the right adapter."},{"attribute_code":"short_description","value":"Mini DisplayPort to DVI Adapter"},{"attribute_code":"image","value":"\/m\/i\/mini_displayport_to_dvi_adapter.jpg"},{"attribute_code":"small_image","value":"\/a\/p\/apple_hdmi_to_dvi_adapter.jpg"},{"attribute_code":"thumbnail","value":"\/a\/p\/apple_hdmi_to_dvi_adapter.jpg"},{"attribute_code":"options_container","value":"container2"},{"attribute_code":"required_options","value":"0"},{"attribute_code":"has_options","value":"0"},{"attribute_code":"url_key","value":"mini-displayport-to-dvi-adapter"},{"attribute_code":"msrp_display_actual_price_type","value":"0"},{"attribute_code":"tax_class_id","value":"2"},{"attribute_code":"gift_message_available","value":"0"},{"attribute_code":"is_featured","value":"0"},{"attribute_code":"gst_source","value":"28"},{"attribute_code":"hsncode","value":"85444299"},{"attribute_code":"gst_source_after_minprice","value":"-1"}]},{"id":565,"sku":"MB571Z\/A","name":"Mini DisplayPort to Dual-Link DVI Adapter","attribute_set_id":4,"price":9400,"status":1,"visibility":4,"type_id":"simple","created_at":"2017-08-31 04:49:58","updated_at":"2017-08-31 05:06:31","weight":1,"extension_attributes":[],"product_links":[],"tier_prices":[],"custom_attributes":[{"attribute_code":"description","value":"Every Mac with a Mini DisplayPort allows you to connect an external display or projector using an adaptor. You can use an external display as your main workspace or to extend your desktop, or you can work in mirrored mode with a projector so you can view what your audience sees.\nUse the Mini DisplayPort to Dual-Link DVI Adaptor to connect your Mac to a 30-inch display that includes a DVI connector, such as the 30-inch Apple Cinema Display HD, and enjoy the ultimate widescreen canvas with a resolution of 2560 by 1600 pixels."},{"attribute_code":"short_description","value":"Mini DisplayPort to Dual-Link DVI Adapter"},{"attribute_code":"image","value":"\/m\/i\/mini_displayport_to_dual-link_dvi_adapter.jpg"},{"attribute_code":"small_image","value":"\/m\/i\/mini_displayport_to_dual-link_dvi_adapter.jpg"},{"attribute_code":"thumbnail","value":"\/m\/i\/mini_displayport_to_dual-link_dvi_adapter.jpg"},{"attribute_code":"options_container","value":"container2"},{"attribute_code":"required_options","value":"0"},{"attribute_code":"has_options","value":"0"},{"attribute_code":"url_key","value":"mini-displayport-to-dual-link-dvi-adapter"},{"attribute_code":"msrp_display_actual_price_type","value":"0"},{"attribute_code":"tax_class_id","value":"2"},{"attribute_code":"gift_message_available","value":"0"},{"attribute_code":"is_featured","value":"0"},{"attribute_code":"gst_source","value":"28"},{"attribute_code":"hsncode","value":"85444299"},{"attribute_code":"gst_source_after_minprice","value":"-1"}]}],"search_criteria":{"filter_groups":[],"page_size":2},"total_count":91}

Answer 1

您需要执行以下操作：

<div *ngFor="let item of items">
   // you can access your item here for example
  <h1>item.id</h1>
   // and you can loop again
  <div *ngFor="let temp of item.custom_attributes">
   <p> temp.attribute_code</p>
  </div>
</div>

您可以使用 *ngFor 迭代对象数组

Answer 2

在你的component.js,

 private myItems:any = [];

constructor(){
}

yourFunction(){
  let vm = this;
  items.forEach(function(val: any){
    val.custom_attributes.forEach(function(myAttrs: any){
      vm.myItems.push({
        "code": myAttrs.attribute_code,
        "description": myAttrs.value
      });
    });
  });
}

在您的 html 文件中

<div *ngFor="let myItem of myItems">
  <p> Code: {{myItem.code}} </p>
  <p> Description : {{myItem.description}}
</div>

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