java - 使用翻新和简单XML转换器获取XML数据

我需要从SupermarketApi获取数据。这是使用Postman原始数据的样子。

<?xml version="1.0" encoding="utf-8"?>
<ArrayOfProduct xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://www.SupermarketAPI.com">
    <Product>
        <Itemname>Flake Parsley Seasoning  - 0.375 Oz. Plastic Peg Bag</Itemname>
        <ItemDescription>Flake Parsley Seasoning  - 0.375 Oz. Plastic Peg Bag</ItemDescription>
        <ItemCategory>Condiments/Spices &amp; Bake</ItemCategory>
        <ItemID>84309</ItemID>
        <ItemImage>http://smapistorage.blob.core.windows.net/thumbimages/2/3C07125.jpg</ItemImage>
        <AisleNumber>Aisle:N/A</AisleNumber>
    </Product>
    <Product>
        <Itemname>El Guapo Flake Parsley Spice  - 0.25 Oz. Plastic Bag</Itemname>
        <ItemDescription>El Guapo Flake Parsley Spice  - 0.25 Oz. Plastic Bag</ItemDescription>
        <ItemCategory>Condiments/Spices &amp; Bake</ItemCategory>
        <ItemID>89721</ItemID>
        <ItemImage>http://smapistorage.blob.core.windows.net/thumbimages/2/no_image_sm.jpg</ItemImage>
        <AisleNumber>Aisle:N/A</AisleNumber>
    </Product>
    <Product>
        <Itemname>Superline Deal Flake Parsley Seasoning  - 1.2 Oz Shaker</Itemname>
        <ItemDescription>Superline Deal Flake Parsley Seasoning  - 1.2 Oz Shaker</ItemDescription>
        <ItemCategory>Condiments/Spices &amp; Bake</ItemCategory>
        <ItemID>85817</ItemID>
        <ItemImage>http://smapistorage.blob.core.windows.net/thumbimages/2/5E59BCF.jpg</ItemImage>
        <AisleNumber>Aisle:N/A</AisleNumber>
    </Product>
</ArrayOfProduct>

这是我对这些数据的POJO表示。

public class ProductDto {

    @Element(name = "itemID")
    private String itemID;

    @Element(name = "Itemname")
    private String Itemname;

    @Element(name = "AisleNumber")
    private String AisleNumber;

    @Element(name = "ItemCategory")
    private String ItemCategory;

    @Element(name = "ItemImage")
    private String ItemImage;

    @Element(name = "ItemDescription")
    private String ItemDescription;
}

这是翻新界面

 public interface SuperMarketApiService {
        public static final String BASE_URL = "http://www.SupermarketAPI.com/api.asmx/";

        @GET("SearchByProductName")
        Call<ProductDto> getProduct(
                @Query("APIKEY") String key,
                @Query("ItemName") String itemName
        );

        Retrofit retrofit = new Retrofit.Builder()
                .baseUrl(BASE_URL)
                .addConverterFactory(SimpleXmlConverterFactory.create())
                .build();

    }

问题是当我打电话时，我收到错误消息

org.simpleframework.xml.core.ElementException：元素“ Product”在第3行的Data.ProductDto类中没有匹配项

如何更新POJO以将XML ArrayOfProducts正确映射到Java ArrayList of Products。

这是我拨打电话的方式

 private void getProducts() {
        SuperMarketApiService apiService = SuperMarketApiService.retrofit.create(SuperMarketApiService.class);
        Call<ArrayOfProduct> call = apiService.getProduct("jdmdldfdd", "Parsley");
        call.enqueue(new Callback<ArrayOfProduct>() {
            @Override
            public void onResponse(Call<ArrayOfProduct> call, Response<ArrayOfProduct> response) {
                ArrayOfProduct products = response.body();
                Log.d(LOG_TAG, "Product Count: " + products.getProductDtos().size());
            }

            @Override
            public void onFailure(Call<ArrayOfProduct> call, Throwable t) {
                Log.d(LOG_TAG, t.getLocalizedMessage());
            }
        });
    }

最佳答案

我认为您应该在ProductDto中更改返回的getProduct()类型
通过与您的xml匹配的类型，该xml将包含多个产品而不只是一个产品的封闭类型作为根元素。
您可以引入ArrayOfProduct，这是一个包装类，其中包含List的ProductDto。

您的方法可能是这样的：

    @GET("SearchByProductName")
    Call<ArrayOfProduct> getProducts(
            @Query("APIKEY") String key,
            @Query("ItemName") String itemName
    );