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在Google Apps腳本中使用XML Service Service解析XML時遇到問題

[英]Trouble parsing XML with XML Service Service in Google Apps Script

 原文  2018-02-12 04:40:25  2   1    javascript/ xml/ google-apps-script/ xml-parsing/ amazon-product-api

問題描述

我正在嘗試在Google表格中編寫一個腳本，該腳本使用ISBN號來查詢Amazon Product Advertising API的產品信息。 我完全無法解析XML。 我已經用盡了我的知識，可以使用一些幫助來理解這一點。

到目前為止，這就是我所擁有的： 

function myFunction(isbn) {
  var app = SpreadsheetApp;
  var activeSheet = app.getActiveSpreadsheet().getActiveSheet();

  var endpoint = 'webservices.amazon.com',
      uri = '/onca/xml';

  var access_key_id = '**************',
      secret_key = '**********************',
      associate_tag = '****************';

  var params = {
    Service: 'AWSECommerceService',
    Operation: 'ItemLookup',
    AWSAccessKeyId: access_key_id,
    AssociateTag: associate_tag,
    ItemId: '9780892131341', // Hardcoded an ISBN for testing
    SearchIndex: 'Books',
    IdType: 'ISBN',
    ResponseGroup: 'ItemAttributes, Images, Offers',
    Timestamp: new Date().toISOString()
  };

  //sort params by keys
  var canonical_query_string = Object.keys(params).sort();

  // urlencode
  canonical_query_string = canonical_query_string.map(function(key){
    return key + '=' + encodeURIComponent(params[key]);
  });

  // Generate canonical query
  canonical_query_string = canonical_query_string.join('&')

  var string_to_sign = 'GET\n' + endpoint + '\n' + uri + '\n' + canonical_query_string;

  var signature = Utilities.base64Encode(Utilities.computeHmacSha256Signature(string_to_sign, secret_key));
  var request = 'http://' + endpoint + uri + '?' + canonical_query_string + '&Signature=' + encodeURIComponent(signature);
  Logger.log(request)
  var response = UrlFetchApp.fetch(request, {muteHttpExceptions: true});

  var data = XmlService.parse(response);
  var elements = data.getRootElement().getChildren();

  Logger.log((elements));
  elements.forEach(function(e) { Logger.log(e) })
}

記錄elements給了我： 

[[Element: <OperationRequest [Namespace: http://webservices.amazon.com/AWSECommerceService/2011-08-01]/>], [Element: <Items [Namespace: http://webservices.amazon.com/AWSECommerceService/2011-08-01]/>]]

elements.forEach(function(e) { Logger.log(e) })輸出： 

[18-02-11 20:36:41:785 PST] [Element: <OperationRequest [Namespace: http://webservices.amazon.com/AWSECommerceService/2011-08-01]/>]
[18-02-11 20:36:41:786 PST] [Element: <Items [Namespace: http://webservices.amazon.com/AWSECommerceService/2011-08-01]/>]

elements.length給了我2.0

typeof(elements[0])給我object

運行elements[0]給我：

[Element: <OperationRequest [Namespace: http://webservices.amazon.com/AWSECommerceService/2011-08-01]/>]

這是完整的XML響應： 

This XML file does not appear to have any style information associated with it. The document tree is shown below.
<ItemLookupResponse xmlns="http://webservices.amazon.com/AWSECommerceService/2011-08-01">
<OperationRequest>
<HTTPHeaders>
<Header Name="UserAgent" Value="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36"/>
</HTTPHeaders>
<RequestId>10cc1aff-8ca6-4207-9f71-80f46eb8d5e6</RequestId>
<Arguments>
<Argument Name="AWSAccessKeyId" Value="**************"/>
<Argument Name="AssociateTag" Value="**************"/>
<Argument Name="IdType" Value="ISBN"/>
<Argument Name="ItemId" Value="9780892131341"/>
<Argument Name="Operation" Value="ItemLookup"/>
<Argument Name="ResponseGroup" Value="ItemAttributes, Images, Offers"/>
<Argument Name="SearchIndex" Value="Books"/>
<Argument Name="Service" Value="AWSECommerceService"/>
<Argument Name="Timestamp" Value="2018-02-12T04:07:56.358Z"/>
<Argument Name="Signature" Value="rhOiCu2p1O9hwyHVHOSGgdBrDmLgmybafy2F9bhahuU="/>
</Arguments>
<RequestProcessingTime>0.0927801110000000</RequestProcessingTime>
</OperationRequest>
<Items>
<Request>
<IsValid>True</IsValid>
<ItemLookupRequest>
<IdType>ISBN</IdType>
<ItemId>9780892131341</ItemId>
<ResponseGroup>ItemAttributes</ResponseGroup>
<ResponseGroup>Images</ResponseGroup>
<ResponseGroup>Offers</ResponseGroup>
<SearchIndex>Books</SearchIndex>
<VariationPage>All</VariationPage>
</ItemLookupRequest>
</Request>
<Item>
<ASIN>0892131349</ASIN>
<DetailPageURL>
https://www.amazon.com/Bhagavad-Gita-Paperback-Bhaktivedanta-Swami-Prabhupada/dp/0892131349?SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=165953&creativeASIN=0892131349
</DetailPageURL>
<ItemLinks>
<ItemLink>
<Description>Technical Details</Description>
<URL>
https://www.amazon.com/Bhagavad-Gita-Paperback-Bhaktivedanta-Swami-Prabhupada/dp/tech-data/0892131349?SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=0892131349
</URL>
</ItemLink>
<ItemLink>
<Description>Add To Baby Registry</Description>
<URL>
https://www.amazon.com/gp/registry/baby/add-item.html?asin.0=0892131349&SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=0892131349
</URL>
</ItemLink>
<ItemLink>
<Description>Add To Wedding Registry</Description>
<URL>
https://www.amazon.com/gp/registry/wedding/add-item.html?asin.0=0892131349&SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=0892131349
</URL>
</ItemLink>
<ItemLink>
<Description>Add To Wishlist</Description>
<URL>
https://www.amazon.com/gp/registry/wishlist/add-item.html?asin.0=0892131349&SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=0892131349
</URL>
</ItemLink>
<ItemLink>
<Description>Tell A Friend</Description>
<URL>
https://www.amazon.com/gp/pdp/taf/0892131349?SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=0892131349
</URL>
</ItemLink>
<ItemLink>
<Description>All Customer Reviews</Description>
<URL>
https://www.amazon.com/review/product/0892131349?SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=0892131349
</URL>
</ItemLink>
<ItemLink>
<Description>All Offers</Description>
<URL>
https://www.amazon.com/gp/offer-listing/0892131349?SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=0892131349
</URL>
</ItemLink>
</ItemLinks>
<SmallImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/51iixzFhJDL._SL75_.jpg
</URL>
<Height Units="pixels">75</Height>
<Width Units="pixels">43</Width>
</SmallImage>
<MediumImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/51iixzFhJDL._SL160_.jpg
</URL>
<Height Units="pixels">160</Height>
<Width Units="pixels">92</Width>
</MediumImage>
<LargeImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/51iixzFhJDL.jpg
</URL>
<Height Units="pixels">500</Height>
<Width Units="pixels">287</Width>
</LargeImage>
<ImageSets>
<ImageSet Category="variant">
<SwatchImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/31zlupl4ZiL._SL30_.jpg
</URL>
<Height Units="pixels">30</Height>
<Width Units="pixels">22</Width>
</SwatchImage>
<SmallImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/31zlupl4ZiL._SL75_.jpg
</URL>
<Height Units="pixels">75</Height>
<Width Units="pixels">56</Width>
</SmallImage>
<ThumbnailImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/31zlupl4ZiL._SL75_.jpg
</URL>
<Height Units="pixels">75</Height>
<Width Units="pixels">56</Width>
</ThumbnailImage>
<TinyImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/31zlupl4ZiL._SL110_.jpg
</URL>
<Height Units="pixels">110</Height>
<Width Units="pixels">82</Width>
</TinyImage>
<MediumImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/31zlupl4ZiL._SL160_.jpg
</URL>
<Height Units="pixels">160</Height>
<Width Units="pixels">120</Width>
</MediumImage>
<LargeImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/31zlupl4ZiL.jpg
</URL>
<Height Units="pixels">500</Height>
<Width Units="pixels">375</Width>
</LargeImage>
</ImageSet>
<ImageSet Category="primary">
<SwatchImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/51iixzFhJDL._SL30_.jpg
</URL>
<Height Units="pixels">30</Height>
<Width Units="pixels">17</Width>
</SwatchImage>
<SmallImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/51iixzFhJDL._SL75_.jpg
</URL>
<Height Units="pixels">75</Height>
<Width Units="pixels">43</Width>
</SmallImage>
<ThumbnailImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/51iixzFhJDL._SL75_.jpg
</URL>
<Height Units="pixels">75</Height>
<Width Units="pixels">43</Width>
</ThumbnailImage>
<TinyImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/51iixzFhJDL._SL110_.jpg
</URL>
<Height Units="pixels">110</Height>
<Width Units="pixels">63</Width>
</TinyImage>
<MediumImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/51iixzFhJDL._SL160_.jpg
</URL>
<Height Units="pixels">160</Height>
<Width Units="pixels">92</Width>
</MediumImage>
<LargeImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/51iixzFhJDL.jpg
</URL>
<Height Units="pixels">500</Height>
<Width Units="pixels">287</Width>
</LargeImage>
</ImageSet>
</ImageSets>
<ItemAttributes>
<Author>A. C. Bhaktivedanta Swami Prabhupada</Author>
<Binding>Mass Market Paperback</Binding>
<Brand>Bhaktivedanta Book Trust</Brand>
<EAN>9780892131341</EAN>
<EANList>
<EANListElement>9780892131341</EANListElement>
</EANList>
<Edition>De Luxe edition</Edition>
<Feature>Most popular book</Feature>
<Format>Deluxe Edition</Format>
<ISBN>0892131349</ISBN>
<ItemDimensions>
<Height Units="hundredths-inches">700</Height>
<Length Units="hundredths-inches">400</Length>
<Weight Units="Hundredths Pounds">95</Weight>
<Width Units="hundredths-inches">175</Width>
</ItemDimensions>
<Label>Bhaktivedanta Book Trust</Label>
<Languages>
<Language>
<Name>English</Name>
<Type>Published</Type>
</Language>
<Language>
<Name>Sanskrit</Name>
<Type>Original Language</Type>
</Language>
<Language>
<Name>English</Name>
<Type>Unknown</Type>
</Language>
</Languages>
<ListPrice>
<Amount>595</Amount>
<CurrencyCode>USD</CurrencyCode>
<FormattedPrice>$5.95</FormattedPrice>
</ListPrice>
<Manufacturer>Bhaktivedanta Book Trust</Manufacturer>
<MPN>colour illustrations</MPN>
<NumberOfItems>1</NumberOfItems>
<NumberOfPages>703</NumberOfPages>
<PackageDimensions>
<Height Units="hundredths-inches">140</Height>
<Length Units="hundredths-inches">700</Length>
<Weight Units="Hundredths Pounds">95</Weight>
<Width Units="hundredths-inches">420</Width>
</PackageDimensions>
<PackageQuantity>1</PackageQuantity>
<PartNumber>colour illustrations</PartNumber>
<ProductGroup>Book</ProductGroup>
<ProductTypeName>ABIS_BOOK</ProductTypeName>
<PublicationDate>1989-06-01</PublicationDate>
<Publisher>Bhaktivedanta Book Trust</Publisher>
<Studio>Bhaktivedanta Book Trust</Studio>
<Title>Bhagavad-Gita As It Is (Paperback)</Title>
</ItemAttributes>
<OfferSummary>
<LowestNewPrice>
<Amount>1</Amount>
<CurrencyCode>USD</CurrencyCode>
<FormattedPrice>$0.01</FormattedPrice>
</LowestNewPrice>
<LowestUsedPrice>
<Amount>10</Amount>
<CurrencyCode>USD</CurrencyCode>
<FormattedPrice>$0.10</FormattedPrice>
</LowestUsedPrice>
<LowestCollectiblePrice>
<Amount>495</Amount>
<CurrencyCode>USD</CurrencyCode>
<FormattedPrice>$4.95</FormattedPrice>
</LowestCollectiblePrice>
<TotalNew>150</TotalNew>
<TotalUsed>327</TotalUsed>
<TotalCollectible>6</TotalCollectible>
<TotalRefurbished>0</TotalRefurbished>
</OfferSummary>
<Offers>
<TotalOffers>1</TotalOffers>
<TotalOfferPages>1</TotalOfferPages>
<MoreOffersUrl>
https://www.amazon.com/gp/offer-listing/0892131349?SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=0892131349
</MoreOffersUrl>
<Offer>
<OfferAttributes>
<Condition>New</Condition>
</OfferAttributes>
<OfferListing>
<OfferListingId>
RGJQzokPTIQv7ptj6VjeaQvVQ5EfYhv3JVqw7drNMVculYaURMxZeJ9Ve5%2FmikeH1e3Il4o1xokKJdpJbQpxcd1RG5lwjnydOJ%2FJjJBjtd0%3D
</OfferListingId>
<Price>
<Amount>595</Amount>
<CurrencyCode>USD</CurrencyCode>
<FormattedPrice>$5.95</FormattedPrice>
</Price>
<Availability>Usually ships in 24 hours</Availability>
<AvailabilityAttributes>
<AvailabilityType>now</AvailabilityType>
<MinimumHours>0</MinimumHours>
<MaximumHours>0</MaximumHours>
</AvailabilityAttributes>
<IsEligibleForSuperSaverShipping>1</IsEligibleForSuperSaverShipping>
<IsEligibleForPrime>1</IsEligibleForPrime>
</OfferListing>
</Offer>
</Offers>
</Item>
<Item>
<ASIN>B002J358V2</ASIN>
<DetailPageURL>
https://www.amazon.com/Bhagavad-Gita-Bhaktivedanta-Swami-Prabhupada-Author/dp/B002J358V2?SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=165953&creativeASIN=B002J358V2
</DetailPageURL>
<ItemLinks>
<ItemLink>
<Description>Technical Details</Description>
<URL>
https://www.amazon.com/Bhagavad-Gita-Bhaktivedanta-Swami-Prabhupada-Author/dp/tech-data/B002J358V2?SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=B002J358V2
</URL>
</ItemLink>
<ItemLink>
<Description>Add To Baby Registry</Description>
<URL>
https://www.amazon.com/gp/registry/baby/add-item.html?asin.0=B002J358V2&SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=B002J358V2
</URL>
</ItemLink>
<ItemLink>
<Description>Add To Wedding Registry</Description>
<URL>
https://www.amazon.com/gp/registry/wedding/add-item.html?asin.0=B002J358V2&SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=B002J358V2
</URL>
</ItemLink>
<ItemLink>
<Description>Add To Wishlist</Description>
<URL>
https://www.amazon.com/gp/registry/wishlist/add-item.html?asin.0=B002J358V2&SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=B002J358V2
</URL>
</ItemLink>
<ItemLink>
<Description>Tell A Friend</Description>
<URL>
https://www.amazon.com/gp/pdp/taf/B002J358V2?SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=B002J358V2
</URL>
</ItemLink>
<ItemLink>
<Description>All Customer Reviews</Description>
<URL>
https://www.amazon.com/review/product/B002J358V2?SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=B002J358V2
</URL>
</ItemLink>
<ItemLink>
<Description>All Offers</Description>
<URL>
https://www.amazon.com/gp/offer-listing/B002J358V2?SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=B002J358V2
</URL>
</ItemLink>
</ItemLinks>
<SmallImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/41CJZYo14rL._SL75_.jpg
</URL>
<Height Units="pixels">75</Height>
<Width Units="pixels">43</Width>
</SmallImage>
<MediumImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/41CJZYo14rL._SL160_.jpg
</URL>
<Height Units="pixels">160</Height>
<Width Units="pixels">92</Width>
</MediumImage>
<LargeImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/41CJZYo14rL.jpg
</URL>
<Height Units="pixels">346</Height>
<Width Units="pixels">199</Width>
</LargeImage>
<ImageSets>
<ImageSet Category="variant">
<SwatchImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/41J58-9dw7L._SL30_.jpg
</URL>
<Height Units="pixels">30</Height>
<Width Units="pixels">17</Width>
</SwatchImage>
<SmallImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/41J58-9dw7L._SL75_.jpg
</URL>
<Height Units="pixels">75</Height>
<Width Units="pixels">42</Width>
</SmallImage>
<ThumbnailImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/41J58-9dw7L._SL75_.jpg
</URL>
<Height Units="pixels">75</Height>
<Width Units="pixels">42</Width>
</ThumbnailImage>
<TinyImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/41J58-9dw7L._SL110_.jpg
</URL>
<Height Units="pixels">110</Height>
<Width Units="pixels">62</Width>
</TinyImage>
<MediumImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/41J58-9dw7L._SL160_.jpg
</URL>
<Height Units="pixels">160</Height>
<Width Units="pixels">90</Width>
</MediumImage>
<LargeImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/41J58-9dw7L.jpg
</URL>
<Height Units="pixels">500</Height>
<Width Units="pixels">281</Width>
</LargeImage>
</ImageSet>
<ImageSet Category="primary">
<SwatchImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/41CJZYo14rL._SL30_.jpg
</URL>
<Height Units="pixels">30</Height>
<Width Units="pixels">17</Width>
</SwatchImage>
<SmallImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/41CJZYo14rL._SL75_.jpg
</URL>
<Height Units="pixels">75</Height>
<Width Units="pixels">43</Width>
</SmallImage>
<ThumbnailImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/41CJZYo14rL._SL75_.jpg
</URL>
<Height Units="pixels">75</Height>
<Width Units="pixels">43</Width>
</ThumbnailImage>
<TinyImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/41CJZYo14rL._SL110_.jpg
</URL>
<Height Units="pixels">110</Height>
<Width Units="pixels">63</Width>
</TinyImage>
<MediumImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/41CJZYo14rL._SL160_.jpg
</URL>
<Height Units="pixels">160</Height>
<Width Units="pixels">92</Width>
</MediumImage>
<LargeImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/41CJZYo14rL.jpg
</URL>
<Height Units="pixels">346</Height>
<Width Units="pixels">199</Width>
</LargeImage>
</ImageSet>
</ImageSets>
<ItemAttributes>
<Author>
A.C. Bhaktivedanta Swami; A.C. Bhaktivedanta Swami Prabhupada (Author) Prabhupada
</Author>
<Binding>Mass Market Paperback</Binding>
<EAN>9780892131341</EAN>
<EANList>
<EANListElement>9780892131341</EANListElement>
</EANList>
<Edition>2nd Edition</Edition>
<ISBN>0892131349</ISBN>
<Label>
The Bhaktivedanta Book Trust/ International Society for Krishna Consciousness
</Label>
<Manufacturer>
The Bhaktivedanta Book Trust/ International Society for Krishna Consciousness
</Manufacturer>
<NumberOfItems>1</NumberOfItems>
<PackageDimensions>
<Height Units="hundredths-inches">94</Height>
<Length Units="hundredths-inches">676</Length>
<Weight Units="Hundredths Pounds">40</Weight>
<Width Units="hundredths-inches">420</Width>
</PackageDimensions>
<ProductGroup>Book</ProductGroup>
<ProductTypeName>BOOKS_1973_AND_LATER</ProductTypeName>
<PublicationDate>1983</PublicationDate>
<Publisher>
The Bhaktivedanta Book Trust/ International Society for Krishna Consciousness
</Publisher>
<Studio>
The Bhaktivedanta Book Trust/ International Society for Krishna Consciousness
</Studio>
<Title>Bhagavad-Gita As It Is</Title>
</ItemAttributes>
<OfferSummary>
<LowestNewPrice>
<Amount>499</Amount>
<CurrencyCode>USD</CurrencyCode>
<FormattedPrice>$4.99</FormattedPrice>
</LowestNewPrice>
<LowestUsedPrice>
<Amount>394</Amount>
<CurrencyCode>USD</CurrencyCode>
<FormattedPrice>$3.94</FormattedPrice>
</LowestUsedPrice>
<TotalNew>11</TotalNew>
<TotalUsed>17</TotalUsed>
<TotalCollectible>0</TotalCollectible>
<TotalRefurbished>0</TotalRefurbished>
</OfferSummary>
<Offers>
<TotalOffers>0</TotalOffers>
<TotalOfferPages>0</TotalOfferPages>
<MoreOffersUrl>0</MoreOffersUrl>
</Offers>
</Item>
<Item>
<ASIN>B003WM5JQI</ASIN>
<DetailPageURL>
https://www.amazon.com/Bhagavad-Gita-As-C-Bhaktivedanta/dp/B003WM5JQI?SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=165953&creativeASIN=B003WM5JQI
</DetailPageURL>
<ItemLinks>
<ItemLink>
<Description>Technical Details</Description>
<URL>
https://www.amazon.com/Bhagavad-Gita-As-C-Bhaktivedanta/dp/tech-data/B003WM5JQI?SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=B003WM5JQI
</URL>
</ItemLink>
<ItemLink>
<Description>Add To Baby Registry</Description>
<URL>
https://www.amazon.com/gp/registry/baby/add-item.html?asin.0=B003WM5JQI&SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=B003WM5JQI
</URL>
</ItemLink>
<ItemLink>
<Description>Add To Wedding Registry</Description>
<URL>
https://www.amazon.com/gp/registry/wedding/add-item.html?asin.0=B003WM5JQI&SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=B003WM5JQI
</URL>
</ItemLink>
<ItemLink>
<Description>Add To Wishlist</Description>
<URL>
https://www.amazon.com/gp/registry/wishlist/add-item.html?asin.0=B003WM5JQI&SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=B003WM5JQI
</URL>
</ItemLink>
<ItemLink>
<Description>Tell A Friend</Description>
<URL>
https://www.amazon.com/gp/pdp/taf/B003WM5JQI?SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=B003WM5JQI
</URL>
</ItemLink>
<ItemLink>
<Description>All Customer Reviews</Description>
<URL>
https://www.amazon.com/review/product/B003WM5JQI?SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=B003WM5JQI
</URL>
</ItemLink>
<ItemLink>
<Description>All Offers</Description>
<URL>
https://www.amazon.com/gp/offer-listing/B003WM5JQI?SubscriptionId=AKIAJN4W3TYVBZX4VOHA&tag=brucecommerce-20&linkCode=xm2&camp=2025&creative=386001&creativeASIN=B003WM5JQI
</URL>
</ItemLink>
</ItemLinks>
<SmallImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/5107miyFvWL._SL75_.jpg
</URL>
<Height Units="pixels">75</Height>
<Width Units="pixels">44</Width>
</SmallImage>
<MediumImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/5107miyFvWL._SL160_.jpg
</URL>
<Height Units="pixels">160</Height>
<Width Units="pixels">94</Width>
</MediumImage>
<LargeImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/5107miyFvWL.jpg
</URL>
<Height Units="pixels">500</Height>
<Width Units="pixels">295</Width>
</LargeImage>
<ImageSets>
<ImageSet Category="primary">
<SwatchImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/5107miyFvWL._SL30_.jpg
</URL>
<Height Units="pixels">30</Height>
<Width Units="pixels">18</Width>
</SwatchImage>
<SmallImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/5107miyFvWL._SL75_.jpg
</URL>
<Height Units="pixels">75</Height>
<Width Units="pixels">44</Width>
</SmallImage>
<ThumbnailImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/5107miyFvWL._SL75_.jpg
</URL>
<Height Units="pixels">75</Height>
<Width Units="pixels">44</Width>
</ThumbnailImage>
<TinyImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/5107miyFvWL._SL110_.jpg
</URL>
<Height Units="pixels">110</Height>
<Width Units="pixels">65</Width>
</TinyImage>
<MediumImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/5107miyFvWL._SL160_.jpg
</URL>
<Height Units="pixels">160</Height>
<Width Units="pixels">94</Width>
</MediumImage>
<LargeImage>
<URL>
https://images-na.ssl-images-amazon.com/images/I/5107miyFvWL.jpg
</URL>
<Height Units="pixels">500</Height>
<Width Units="pixels">295</Width>
</LargeImage>
</ImageSet>
</ImageSets>
<ItemAttributes>
<Author>A. C. Bhaktivedanta</Author>
<Binding>Paperback</Binding>
<EAN>9780892131341</EAN>
<EANList>
<EANListElement>9780892131341</EANListElement>
</EANList>
<ISBN>0892131349</ISBN>
<Label>Bhaktivedanta Book Trust, Australia</Label>
<Languages>
<Language>
<Name>English</Name>
<Type>Published</Type>
</Language>
<Language>
<Name>English</Name>
<Type>Unknown</Type>
</Language>
</Languages>
<Manufacturer>Bhaktivedanta Book Trust, Australia</Manufacturer>
<NumberOfItems>1</NumberOfItems>
<NumberOfPages>642</NumberOfPages>
<PackageDimensions>
<Height Units="hundredths-inches">130</Height>
<Length Units="hundredths-inches">680</Length>
<Weight Units="Hundredths Pounds">75</Weight>
<Width Units="hundredths-inches">420</Width>
</PackageDimensions>
<ProductGroup>Book</ProductGroup>
<ProductTypeName>BOOKS_1973_AND_LATER</ProductTypeName>
<PublicationDate>1985</PublicationDate>
<Publisher>Bhaktivedanta Book Trust, Australia</Publisher>
<SKU>6877628</SKU>
<Studio>Bhaktivedanta Book Trust, Australia</Studio>
<Title>Bhagavad-Gita As It Is</Title>
</ItemAttributes>
<OfferSummary>
<LowestNewPrice>
<Amount>500</Amount>
<CurrencyCode>USD</CurrencyCode>
<FormattedPrice>$5.00</FormattedPrice>
</LowestNewPrice>
<LowestUsedPrice>
<Amount>210</Amount>
<CurrencyCode>USD</CurrencyCode>
<FormattedPrice>$2.10</FormattedPrice>
</LowestUsedPrice>
<LowestCollectiblePrice>
<Amount>2400</Amount>
<CurrencyCode>USD</CurrencyCode>
<FormattedPrice>$24.00</FormattedPrice>
</LowestCollectiblePrice>
<TotalNew>8</TotalNew>
<TotalUsed>29</TotalUsed>
<TotalCollectible>2</TotalCollectible>
<TotalRefurbished>0</TotalRefurbished>
</OfferSummary>
<Offers>
<TotalOffers>0</TotalOffers>
<TotalOfferPages>0</TotalOfferPages>
<MoreOffersUrl>0</MoreOffersUrl>
</Offers>
</Item>
</Items>
</ItemLookupResponse>

抱歉，復制/粘貼時XML格式混亂，但我認為可以。

我似乎無法像我期望的那樣遍歷文檔。 如果有人可以幫助我了解我所缺少的內容，將不勝感激，謝謝！

編輯：

我設法獲得了ASIN號： 

var item1 = items[1].asElement();
var item1_children = item1.getChildren();
var item1_asin = item1_children[0].getAllContent();

輸出：

[18-02-11 22:07:33:500 PST] [0892131349]

當我嘗試運行getAttribute('ASIN')或getChild('ASIN')我返回null

如何編寫此代碼，以便可以利用getAttribute(String name)或getChild(String name)方法？

1 個解決方案

解決方案1
 0  2018-02-12 05:04:49

在XML元素上使用Logger.log（）時，您會得到頂級元素的縮寫字符串表示形式（您將無法完整打印出嵌套在其中的元素）。 要遍歷元素，必須使用XMLService的Element類可用的方法。

請參閱下面的文檔鏈接： https : //developers.google.com/apps-script/reference/xml-service/element

您會注意到，有很多方法以“ get”為前綴。 使用它們遍歷XML樹以獲得所需的數據。

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