C# 将对象序列化为包含对象列表的 XML

问题描述 投票:0回答:1

我需要序列化一个 XML 以附加到 API PUT 请求。

我正在使用 System.Xml.Serialization.

最终结果需要类似于以下内容:

<?xml version="1.0" encoding="UTF-8"?>
<prestashop xmlns:xlink="http://www.w3.org/1999/xlink">
        <product>
            <id>
                <![CDATA[2678]]>
            </id>
            <cache_default_attribute>
                <![CDATA[0]]>
            </cache_default_attribute>
            <id_shop_default>
                <![CDATA[1]]>
            </id_shop_default>
            <reference>
                <![CDATA[2678]]>
            </reference>
            <supplier_reference>
                <![CDATA[]]>
            </supplier_reference>
            <location>
                <![CDATA[]]>
            </location>
            <width>
                <![CDATA[0.000000]]>
            </width>
            <height>
                <![CDATA[0.000000]]>
            </height>
            <depth>
                <![CDATA[0.000000]]>
            </depth>
            <weight>
                <![CDATA[0.000000]]>
            </weight>
            <quantity_discount>
                <![CDATA[0]]>
            </quantity_discount>
            <ean13>
                <![CDATA[]]>
            </ean13>
            <isbn>
                <![CDATA[]]>
            </isbn>
            <upc>
                <![CDATA[0]]>
            </upc>
            <mpn>
                <![CDATA[000.018]]>
            </mpn>
            <cache_is_pack>
                <![CDATA[0]]>
            </cache_is_pack>
            <cache_has_attachments>
                <![CDATA[0]]>
            </cache_has_attachments>
            <is_virtual>
                <![CDATA[0]]>
            </is_virtual>
            <state>
                <![CDATA[1]]>
            </state>
            <additional_delivery_times>
                <![CDATA[1]]>
            </additional_delivery_times>
            <delivery_in_stock>
                <language id="1">
                    <![CDATA[]]>
                </language>
                <language id="2">
                    <![CDATA[]]>
                </language>
            </delivery_in_stock>
            <delivery_out_stock>
                <language id="1">
                    <![CDATA[]]>
                </language>
                <language id="2">
                    <![CDATA[]]>
                </language>
            </delivery_out_stock>
            <product_type>
                <![CDATA[combinations]]>
            </product_type>
            <on_sale>
                <![CDATA[0]]>
            </on_sale>
            <online_only>
                <![CDATA[0]]>
            </online_only>
            <date_add>
                <![CDATA[2023-02-16 00:21:12]]>
            </date_add>
            <date_upd>
                <![CDATA[2023-02-22 17:22:23]]>
            </date_upd>
            <name>
                <language id="1">
                    <![CDATA[ETNIES TRI LAM POLO (000.018)]]>
                </language>
                <language id="2">
                    <![CDATA[ETNIES TRI LAM POLO (000.018)]]>
                </language>
            </name>
        </product>
</prestashop>

为此,我有一个这样的课程:

[XmlType("product")]
public class Product
{
    public Product()
    {
        id = "";
        active = "1";
        available_for_order= "1";
        indexed= "1";
        visibility = "both";
        delivery_in_stock = new List<PaLanguage>();
        delivery_out_stock = new List<PaLanguage>();
        name = new List<PaLanguage>();
    }

    [XmlElement("id")] public XmlCDataSection C_id { get { return new XmlDocument().CreateCDataSection(id); } set { id = value.Value; } }
    [XmlIgnore] public string id;
    [XmlElement("cache_default_attribute")] public XmlCDataSection C_cache_default_attribute { get { return new XmlDocument().CreateCDataSection(cache_default_attribute); } set {cache_default_attribute = value.Value; } }
    [XmlIgnore] public string cache_default_attribute;
    ...
    [XmlArray("delivery_in_stock")] public List<PaLanguage> delivery_in_stock;
    [XmlArray("delivery_out_stock")] public List<PaLanguage> delivery_out_stock;
    ...

PaLanguage 是:

public class PaLanguage
{
    [XmlElement("language")] public XmlCDataSection C_language { get { return new XmlDocument().CreateCDataSection(language); } set { language = value.Value; } }
    [XmlIgnore] public string language { get; set; }
    [XmlAttribute("id")] public string id;
}

因为这是更新记录,所以我首先完成一个获取请求,然后匹配它的所有值。 我使用以下代码完成此操作:

XDocument getResponse = Helper.GetProductReference(get, Helper.GetValueByKey("ShopApi") + "products/");
var gotProduct = getResponse
    .Element("prestashop")
    .Element("products")
    .Elements("product")
    .Where(e => e.Element("reference").Value == mtrl)
    .Single();  

我创建了一个新的产品项附加到我的放置请求,但我在序列化它的 XmlArrays 时遇到了问题。

我尝试的最后一件事是:

foreach (XElement x in gotProduct.Element("delivery_in_stock").Elements("language"))
{
    product.delivery_in_stock.Add(new PrestaLanguage { id = (string)x.Attribute("id"), language = (string)x.Element("language") });
}

这是完全错误的,因为它将它序列化为:

<product>
<id><![CDATA[2678]]></id>
... xml
<delivery_in_stock>
  <PaLanguage id="1">
    <language><![CDATA[]]></language>
  </PaLanguage>
  <PaLanguage id="2">
    <language><![CDATA[]]></language>
  </PaLanguage>
</delivery_in_stock>

感觉就像我已经尝试了所有可以在网上和官方文档中找到的东西,每次尝试都离我的预期结果更远。

我应该注意到这个类实际上还有几十个字段,它们要么只是一个字符串,要么是 id 和语言值的另一种组合。

感谢任何帮助。

c# xml linq linq-to-xml xml-serialization
1个回答
0
投票

似乎 XML 中的 delivery_in_stock 和 delivery_out_stock 元素可以包含具有不同 id 属性的多个语言元素。因此,您需要修改您的 foreach 循环以处理多种语言元素。

您可以使用 Descendants("language") 而不是使用 Elements("language") 来获取 delivery_in_stock 和 delivery_out_stock 下的所有语言元素。

foreach (XElement x in gotProduct.Element("delivery_in_stock").Descendants("language"))
{
    product.delivery_in_stock.Add(new PaLanguage { id = (string)x.Attribute("id"), language = (string)x });
}

foreach (XElement x in gotProduct.Element("delivery_out_stock").Descendants("language"))
{
    product.delivery_out_stock.Add(new PaLanguage { id = (string)x.Attribute("id"), language = (string)x });
}

此外,在 PaLanguage 类中,语言属性应该是 XmlCDataSection 类型,而不是字符串,因为它包含 CDATA。

public class PaLanguage
{
    [XmlText]
    public XmlCDataSection language { get; set; }

    [XmlAttribute("id")]
    public string id { get; set; }
}

最后是product类,应该给没有的properties加上[XmlElement]属性,比如id_shop_default, reference, supplier_reference等

[XmlType("product")]
public class Product
{
    public Product()
    {
        id = "";
        active = "1";
        available_for_order = "1";
        indexed = "1";
        visibility = "both";
        delivery_in_stock = new List<PaLanguage>();
        delivery_out_stock = new List<PaLanguage>();
        name = new List<PaLanguage>();
    }

    [XmlElement("id")]
    public XmlCDataSection C_id { get { return new XmlDocument().CreateCDataSection(id); } set { id = value.Value; } }

    [XmlElement("cache_default_attribute")]
    public XmlCDataSection C_cache_default_attribute { get { return new XmlDocument().CreateCDataSection(cache_default_attribute); } set { cache_default_attribute = value.Value; } }

    [XmlElement("id_shop_default")]
    public XmlCDataSection C_id_shop_default { get { return new XmlDocument().CreateCDataSection(id_shop_default); } set { id_shop_default = value.Value; } }

    [XmlElement("reference")]
    public XmlCDataSection C_reference { get { return new XmlDocument().CreateCDataSection(reference); } set { reference = value.Value; } }

    [XmlElement("supplier_reference")]
    public XmlCDataSection C_supplier_reference { get { return new XmlDocument().CreateCDataSection(supplier_reference); } set { supplier_reference = value.Value; } }

    [XmlElement("location")]
    public XmlCDataSection C_location { get { return new XmlDocument().CreateCDataSection(location); } set { location = value.Value; } }

    [XmlElement("width")]
    public XmlCDataSection C_width { get { return new XmlDocument().CreateCDataSection(width); } set { width = value.Value; } }

    [XmlElement("height")]
    public XmlCDataSection C_height { get { return new XmlDocument().CreateCDataSection(height); } set { height = value.Value; } }

// etc..
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