c# - 通过导入将 XSD 转换为 XML

Question

我目前正在开发一种服务，用于生成遵循 UBL 发票标准的 XML 文件，因此我需要使用一些提供的 XSD 架构。

我正在使用 .NET C# 进行开发，并找到了一种可以将 XSD 映射到 C# 类的方法 - 通过使用 XSD.exe - 这似乎没问题？

我面临的问题是，xsd 文件中还有其他命名空间，这似乎对我生成的类 (xsd:imports) 造成了一些问题:

<!-- ===== xsd:schema Element With Namespaces Declarations ===== -->
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
targetNamespace="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2"
xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2"
xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2"
xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
xmlns:udt="urn:un:unece:uncefact:data:specification:UnqualifiedDataTypesSchemaModule:2"
xmlns:ccts="urn:un:unece:uncefact:documentation:2"
xmlns:ext="urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2"
xmlns:qdt="urn:oasis:names:specification:ubl:schema:xsd:QualifiedDatatypes-2"
elementFormDefault="qualified"
attributeFormDefault="unqualified"
version="2.0">
<!-- ===== Imports ===== -->
<xsd:import namespace="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2" schemaLocation="../common/UBL-CommonAggregateComponents-2.0.xsd"/>
<xsd:import namespace="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" schemaLocation="../common/UBL-CommonBasicComponents-2.0.xsd"/>
<xsd:import namespace="urn:un:unece:uncefact:data:specification:UnqualifiedDataTypesSchemaModule:2" schemaLocation="../common/UnqualifiedDataTypeSchemaModule-2.0.xsd"/>
<xsd:import namespace="urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2" schemaLocation="../common/UBL-CommonExtensionComponents-2.0.xsd"/>
<xsd:import namespace="urn:oasis:names:specification:ubl:schema:xsd:QualifiedDatatypes-2" schemaLocation="../common/UBL-QualifiedDatatypes-2.0.xsd"/>
<!-- ===== Root Element ===== -->
<xsd:element name="Invoice" type="InvoiceType">
...

我使用以下命令运行 xsd.exe:

xsd.exe /c C:\Users\tn\Downloads\os-UBL-2.0\os-UBL-2.0\xsd\maindoc\UBL-Invoice-2.0.xsd C:\Users\tn\Downloads\os-UBL-2.0\os-UBL-2.0\xsd\common\UBL-CommonAggregateComponents-2.0.xsd C:\Users\tn\Downloads\os-UBL-2.0\os-UBL-2.0\xsd\common\UBL-CommonBasicComponents-2.0.xsd C:\Users\tn\Downloads\os-UBL-2.0\os-UBL-2.0\xsd\common\UnqualifiedDataTypeSchemaModule-2.0.xsd C:\Users\tn\Downloads\os-UBL-2.0\os-UBL-2.0\xsd\common\UBL-CommonExtensionComponents-2.0.xsd C:\Users\tn\Downloads\os-UBL-2.0\os-UBL-2.0\xsd\common\UBL-QualifiedDatatypes-2.0.xsd C:\Users\tn\Downloads\os-UBL-2.0\os-UBL-2.0\xsd\common\CodeList_UnitCode_UNECE_7_04.xsd C:\Users\tn\Downloads\os-UBL-2.0\os-UBL-2.0\xsd\common\CodeList_MIMEMediaTypeCode_IANA_7_04.xsd C:\Users\tn\Downloads\os-UBL-2.0\os-UBL-2.0\xsd\common\CodeList_LanguageCode_ISO_7_04.xsd C:\Users\tn\Downloads\os-UBL-2.0\os-UBL-2.0\xsd\common\CodeList_CurrencyCode_ISO_7_04.xsd

当我尝试使用生成的代码制作 XML 文件时，输出看起来像这样，其中缺少导入和 namespace 先行者，最终验证失败。

<?xml version="1.0" encoding="utf-8"?>
<Invoice xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"     xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2">
   <UBLVersionID xmlns="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">2.0</UBLVersionID>
   <LegalMonetaryTotal xmlns="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2">
   <LineExtensionAmount currencyID="DKK" xmlns="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">200</LineExtensionAmount>
   <PayableAmount currencyID="DKK" xmlns="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">300</PayableAmount>
   </LegalMonetaryTotal>
</Invoice>

这里是示例代码，我通过 xmlserializer 从生成的类生成 XML

XmlSerializer mySerializer = new XmlSerializer(typeof(InvoiceType));
    InvoiceType invoice = new InvoiceType();

    UBLVersionIDType UVer = new UBLVersionIDType();
    UVer.Value = "2.0";
    invoice.UBLVersionID = UVer;

    MonetaryTotalType mtt = new MonetaryTotalType();
    LineExtensionAmountType lep = new LineExtensionAmountType();
    lep.currencyID = CurrencyCodeContentType.DKK;
    lep.Value = 200;
    PayableAmountType pat = new PayableAmountType();
    pat.currencyID = CurrencyCodeContentType.DKK;
    pat.Value = 300;

    mtt.LineExtensionAmount = lep;
    mtt.PayableAmount = pat;

    invoice.LegalMonetaryTotal = mtt;
    StreamWriter sw = new StreamWriter(@"C:\New folder\test2.xml");

    mySerializer.Serialize(sw, invoice);
    sw.Close();

我该如何解决这个问题，这是在 .NET 中制作遵循 xsd 模式的 XML 的正确(最佳/最简单)方法吗？

Answer 1

发现自己。

需要包含 XML 文档的命名空间和前缀的 XmlSerializerNamespaces 对象。

(http://msdn.microsoft.com/en-us/library/system.xml.serialization.xmlserializernamespaces.aspx)