Question

我需要从SupermarketApi获取数据。以下是使用Postman的原始数据。

<?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>

这是我对该数据的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Retrofit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();   

    }

问题是当我拨打电话时，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

如何更新POJO以将XML ArrayOfProducts正确映射到产品的Java ArrayList。

以下是我打电话的方式

 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());
            }
        });
    }

Answer 1

我认为您应该更改this.bind.addToCart(this)中返回的ProductDto类型通过与您的xml匹配的类型，等待作为根元素的封闭类型包含多个产品而不仅仅是产品您可以介绍getProduct()，这是一个包含ArrayOfProduct List的包装类。

你的方法可能如此：

ProductDto

使用Retrofit和Simple XML Converter获取XML数据

1 个答案: