Question

我想用Nopcommerce网站上的产品列表创建XML。因为图像是二进制的，我无法找到一种方法只获取图像的名称（我只需要图像名称不在图像上显示）任何想法？我丢失的代码在/ images / thumbs /

的行中

topsystemDataClassesDataContext db = new topsystemDataClassesDataContext();
    XmlTextWriter writer = new XmlTextWriter(path + "/Products_" + catid + ".xml", System.Text.Encoding.UTF8);
    writer.WriteStartDocument(true);
    writer.Formatting = Formatting.Indented;
    writer.Indentation = 2;
    writer.WriteStartElement("store");

    //CREATE-SCREENS
    var allProducts = (from p in db.Product_Category_Mappings
                       where p.CategoryId == catid
                       join s in db.Products
                     on p.ProductId equals s.Id

                       join im in db.Product_Picture_Mappings
                       on p.ProductId equals im.ProductId

                       join imag in db.Pictures
                       on im.PictureId equals imag.Id
                       select new
                       {
                           s.Name,
                           s.Id,
                           s.Price,
                           s.ShortDescription,
                           s.BackorderModeId,
                           im.PictureId,
                           imag.PictureBinary
                       }).ToList();


    foreach (var item in allProducts)
    {
        writer.WriteStartElement("product");
        writer.WriteStartElement("PRODUCT_URL");
        writer.WriteString("http://www.topsystems.co.il/Product.aspx?ProductId=" + item.Id);
        writer.WriteEndElement();

        writer.WriteStartElement("product_name");
        writer.WriteString(item.Name);
        writer.WriteEndElement();

        writer.WriteStartElement("MODEL");
        writer.WriteString(item.BackorderModeId.ToString());
        writer.WriteEndElement();

        writer.WriteStartElement("CATALOG_NUMBER");
        writer.WriteString("0");
        writer.WriteEndElement();

        writer.WriteStartElement("DETAILS");
        writer.WriteString(item.ShortDescription);
        writer.WriteEndElement();

        writer.WriteStartElement("CURRENCY");
        writer.WriteString("ILS");
        writer.WriteEndElement();

        writer.WriteStartElement("PRICE");
        writer.WriteString(item.Price.ToString());
        writer.WriteEndElement();

        writer.WriteStartElement("SHIPMENT_COST");
        writer.WriteString("0");
        writer.WriteEndElement();

        writer.WriteStartElement("DELIVERY_TIME");
        writer.WriteString("3");
        writer.WriteEndElement();

        writer.WriteStartElement("MANUFACTURER");
        writer.WriteString("ללא");
        writer.WriteEndElement();

        writer.WriteStartElement("WARRANTY");
        writer.WriteString("ללא");
        writer.WriteEndElement();

        writer.WriteStartElement("IMAGE");
        writer.WriteString("http://www.topsystems.co.il/content/images/thumbs/");
        writer.WriteEndElement();

        writer.WriteStartElement("TAX");
        writer.WriteString("0");
        writer.WriteEndElement();


        writer.WriteEndElement();
    }
    writer.WriteEndElement();
    writer.WriteEndDocument();
    writer.Close();

    Response.Clear();
    Response.Buffer = true;
    Response.Charset = "";
    Response.Cache.SetCacheability(HttpCacheability.NoCache);
    Response.ContentType = "application/xml";
    Response.WriteFile(Server.MapPath("~/zap/Products_" + catid + ".xml"));
    Response.Flush();
    Response.End();

Answer 1

如果我没有错误，那么单个产品可能有多张图片，可能你必须使用循环。

由于您有产品ID，您可以使用图片服务获取图片搜索名称。

图片服务GetPicturesByProductId为您提供了一个图片列表，您必须得到它的序列号

var pictures = _pictureService.GetPicturesByProductId(items.id) 

foreach(item in pictures)
{
    writer.WriteStartElement("IMAGE");
    writer.WriteString(item.SeoFilename);
    writer.WriteEndElement();
}

Answer 2

Xml不支持二进制数据，您必须将其转换为文本格式，因为Xml用作按摩格式。你需要smth。像这样：

string text = System.Text.Encoding.UTF8.GetString(data);

以下是链接：binary-xml

byte[] binaryData;
try 
{
   binaryData = System.Convert.FromBase64String(base64String);
}

这是XmlReader的替代方案。请检查此链接：alternative

广告如果您坚持使用XmlReader尝试实现此目的：

writer.WriteStartElement("Image");
writer.WriteBase64(fileData[1], 0, fileData[1].Length);

另见：stack-discussion

我不确定这对你有帮助。没有经历这么多，但我很高兴，如果这将有任何帮助

在Nopcommerce中获取图像名称

2 个答案: