远程名称无法解析：'images.amazon.com'

Question

在我的asp.net网络应用程序中，我正在使用亚马逊插件来加载具有相应的isbn.in代码的书籍图像。我正在将该图像转换为字节数组，以便将其存储到数据库中。但问题是它有时会再次出现错误见图片

可以指出出现此错误的原因，请向我建议一些解决方案。谢谢。

Answer 1

当你达到油门限制时会发生这种情况。

尝试将代码包装在try catch块

中

例如

void withretry(string query)
{
    ListMatchingProductsRequest request = new ListMatchingProductsRequest();
    request.SellerId = amazonsetting.merchantId;
    request.MarketplaceId = amazonsetting.marketplaceId;
    request.QueryContextId = "Books";
    request.Query = query;
    try
    {
        ListMatchingProductsResponse response = amazonsetting.service.ListMatchingProducts(request);
        if (response.IsSetListMatchingProductsResult())
        {
            ListMatchingProductsResult listMatchingProductsResult = response.ListMatchingProductsResult;
            if (listMatchingProductsResult.IsSetProducts())
            {
                ProductList products = listMatchingProductsResult.Products;
                List<Product> productList = products.Product;
                Product product = productList[0];
                if (product.IsSetIdentifiers())
                {
                    IdentifierType identifiers = product.Identifiers;
                    if (identifiers.IsSetMarketplaceASIN())
                    {
                        ASINIdentifier marketplaceASIN = identifiers.MarketplaceASIN;
                        if (marketplaceASIN.IsSetMarketplaceId())
                        {
                        }
                        if (marketplaceASIN.IsSetASIN())
                        {
                            asin = marketplaceASIN.ASIN;
                        }
                    }
                }
                if (product.IsSetAttributeSets())
                {
                    foreach (var attribute in product.AttributeSets.Any)
                    {
                        msg += ProductsUtil.FormatXml((System.Xml.XmlElement)attribute);
                    }
                }

            }
            parsemsg();

        }
    }
    catch (Exception ex)
    {
        string type = ex.Message;
        if (type=="Request is throttled")
        {
            if (cnt<=maxretry)
            {
                cnt++;
                withretry(query);
            }

        }


    }
}

这将继续重试，直到达到maxretry。