如何解析具有嵌套元素(complexType 和 simpleType 元素和属性)的 xsd 文件? [英] How to parse an xsd file which has nested elements(complexType and simpleType elements and attributes)?
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问题描述
我有一个这样的 xsd 文件:
I have an xsd file like that:
<?xml version="1.0" encoding="utf-8" ?>
<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="transfer">
<xs:complexType>
<xs:sequence>
<xs:element name="sourceGLN" type="xs:string" minOccurs="1" maxOccurs="1" />
<xs:element name="destinationGLN" type="xs:string" minOccurs="1" maxOccurs="1" />
<xs:element name="actionType" minOccurs="1" maxOccurs="1">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:enumeration value="P" /> <!-- Mal Alim (Purchase) -->
<xs:enumeration value="S" /> <!-- Satis (Sale) -->
<xs:enumeration value="C" /> <!-- Cancel Sale (Cancel) -->
<xs:enumeration value="R" /> <!-- Iade (Return) -->
<xs:enumeration value="D" /> <!-- Deaktivasyon (Deactivation) -->
<xs:enumeration value="M" /> <!-- Uretim (Manufacture) -->
<xs:enumeration value="I" /> <!-- Ithalat (Import) -->
<xs:enumeration value="X" /> <!-- Ihrac (eXport) -->
<xs:enumeration value="O" /> <!-- Sarf (cOnsume) -->
<xs:enumeration value="N" /> <!-- Bilgi (iNformation) -->
<xs:enumeration value="T" /> <!-- Devir (Transfer) -->
<xs:enumeration value="L" /> <!-- Devir Iptal (canceL Transfer) -->
<xs:enumeration value="F" /> <!-- Aktarim (non-its transFer) -->
<xs:enumeration value="K" /> <!-- Aktarim Iptal (non-its cancel transfer) -->
</xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="shipTo" type="xs:string" minOccurs="0" maxOccurs="1" />
<xs:element name="documentNumber" type="xs:string" minOccurs="0" maxOccurs="1" />
<xs:element name="documentDate" type="xs:date" minOccurs="0" maxOccurs="1" />
<xs:element name="note" type="xs:string" minOccurs="0" maxOccurs="1" />
<xs:element name="version" type="xs:string" minOccurs="0" maxOccurs="1" />
<xs:element name="carrier" type="carrierType" minOccurs="1" maxOccurs="unbounded" />
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:complexType name="carrierType">
<xs:sequence minOccurs="1" maxOccurs="unbounded">
<xs:choice minOccurs="1" maxOccurs="1">
<xs:element name="productList" type="productListType" minOccurs="1" maxOccurs="1" />
<xs:element name="carrier" type="carrierType" minOccurs="1" maxOccurs="1" />
</xs:choice>
</xs:sequence>
<xs:attribute name="carrierLabel" use="required">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:length value="20" />
</xs:restriction>
</xs:simpleType>
</xs:attribute>
<xs:attribute name="containerType" type="xs:string" use="optional" />
</xs:complexType>
<xs:complexType name="productListType">
<xs:sequence>
<xs:element name="serialNumber" type="xs:string" minOccurs="1" maxOccurs="unbounded" />
</xs:sequence>
<xs:attribute name="GTIN" type="xs:string" use="required" />
<xs:attribute name="lotNumber" type="xs:string" use="required" />
<xs:attribute name="productionDate" type="xs:date" use="optional" />
<xs:attribute name="expirationDate" type="xs:date" use="required" />
<xs:attribute name="PONumber" type="xs:string" use="optional" />
</xs:complexType>
</xs:schema>
我有这样的代码:
using System;
using System.Collections;
using System.Xml;
using System.Xml.Schema;
namespace ConsoleApplication1
{
class XmlSchemaTraverseExample
{
static void Main()
{
// Add the customer schema to a new XmlSchemaSet and compile it.
// Any schema validation warnings and errors encountered reading or
// compiling the schema are handled by the ValidationEventHandler delegate.
XmlSchemaSet schemaSet = new XmlSchemaSet();
schemaSet.ValidationEventHandler += new ValidationEventHandler(ValidationCallback);
schemaSet.Add("http://www.w3.org/2001/XMLSchema", "C:\\Users\\ahmet.ulusoy\\Desktop\\pts_xml_schema_v_1_4.xsd");
schemaSet.Compile();
// Retrieve the compiled XmlSchema object from the XmlSchemaSet
// by iterating over the Schemas property.
XmlSchema customerSchema = null;
foreach (XmlSchema schema in schemaSet.Schemas())
{
customerSchema = schema;
}
// Iterate over each XmlSchemaElement in the Values collection
// of the Elements property.
foreach (XmlSchemaElement element in customerSchema.Elements.Values)
{
Console.WriteLine("Element: {0}", element.Name);
// Get the complex type of the Customer element.
XmlSchemaComplexType complexType = element.ElementSchemaType as XmlSchemaComplexType;
// If the complex type has any attributes, get an enumerator
// and write each attribute name to the console.
if (complexType.AttributeUses.Count > 0)
{
IDictionaryEnumerator enumerator =
complexType.AttributeUses.GetEnumerator();
while (enumerator.MoveNext())
{
XmlSchemaAttribute attribute =
(XmlSchemaAttribute)enumerator.Value;
Console.WriteLine("Attribute: {0}", attribute.Name);
}
}
// Get the sequence particle of the complex type.
XmlSchemaSequence sequence = complexType.ContentTypeParticle as XmlSchemaSequence;
// Iterate over each XmlSchemaElement in the Items collection.
foreach ( XmlSchemaElement childElement in sequence.Items)
{
Console.WriteLine("Element: {0}", childElement.Name);
}
}
}
static void ValidationCallback(object sender, ValidationEventArgs args)
{
if (args.Severity == XmlSeverityType.Warning)
Console.Write("WARNING: ");
else if (args.Severity == XmlSeverityType.Error)
Console.Write("ERROR: ");
Console.WriteLine(args.Message);
}
}
}
当我尝试运行它时，它给了我第一个元素的元素名称.之后我如何才能获取其他两个 xs:complexType name="carrierType" 和 xs:complexType name="productListType" 及其子元素和属性?
When I tried to run it gives me the just first element' elements name. After that how can I take other two xs:complexType name="carrierType" and xs:complexType name="productListType" and their sub elements and attributes?
我制作了这部分并要更新代码.
I made this part and gonna update the code.
我也想用这些数据和数据类型创建一个泛型类.我该怎么办?
I also want to make a generic class with these data and data types. What do I should?
感谢您的提前.
推荐答案
如果你有一个像上面这样的 xsd 文档，你可能需要这样的代码.
If you got a xsd document like above, you may need a code like that.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Schema;
using System.Collections;
using System.Data;
namespace ConsoleApplication1
{
class Program
{
private static void Main(string[] args)
{
XmlSchemaSet schemaSet = new XmlSchemaSet();
schemaSet.ValidationEventHandler += new ValidationEventHandler(ValidationCallback);
schemaSet.Add("http://www.w3.org/2001/XMLSchema", "C:\\Users\\ahmet.ulusoy\\Desktop\\pts_xml_schema_v_1_4.xsd");
schemaSet.Compile();
XmlSchema xmlSchema = null;
foreach (XmlSchema schema in schemaSet.Schemas())
{
xmlSchema = schema;
}
DataSet myDS = new DataSet();
myDS.ReadXmlSchema("C:\\Users\\ahmet.ulusoy\\Desktop\\pts_xml_schema_v_1_4.xsd");
foreach (object item in xmlSchema.Items)
{
XmlSchemaElement schemaElement = item as XmlSchemaElement;
XmlSchemaComplexType complexType = item as XmlSchemaComplexType;
if (schemaElement != null)
{
Console.Out.WriteLine("Schema Element: {0}", schemaElement.Name);
XmlSchemaType schemaType = schemaElement.SchemaType;
XmlSchemaComplexType schemaComplexType = schemaType as XmlSchemaComplexType;
if (schemaComplexType != null)
{
XmlSchemaParticle particle = schemaComplexType.Particle;
XmlSchemaSequence sequence = particle as XmlSchemaSequence;
if (sequence != null)
{
foreach (XmlSchemaElement childElement in sequence.Items)
{
Console.Out.WriteLine(" Element/Type: {0}:{1}", childElement.Name,
childElement.SchemaTypeName.Name);
}
}
if (schemaComplexType.AttributeUses.Count > 0)
{
IDictionaryEnumerator enumerator = schemaComplexType.AttributeUses.GetEnumerator();
while (enumerator.MoveNext())
{
XmlSchemaAttribute attribute = (XmlSchemaAttribute)enumerator.Value;
Console.Out.WriteLine(" Attribute/Type: {0}", attribute.Name);
}
}
}
}
else if (complexType != null)
{
Console.Out.WriteLine("Complex Type: {0}", complexType.Name);
OutputElements(complexType.Particle);
if (complexType.AttributeUses.Count > 0)
{
IDictionaryEnumerator enumerator = complexType.AttributeUses.GetEnumerator();
while (enumerator.MoveNext())
{
XmlSchemaAttribute attribute = (XmlSchemaAttribute)enumerator.Value;
Console.Out.WriteLine(" Attribute/Type: {0}", attribute.Name);
}
}
}
Console.Out.WriteLine();
}
Console.Out.WriteLine();
Console.In.ReadLine();
}
private static void OutputElements(XmlSchemaParticle particle)
{
XmlSchemaSequence sequence = particle as XmlSchemaSequence;
XmlSchemaChoice choice = particle as XmlSchemaChoice;
XmlSchemaAll all = particle as XmlSchemaAll;
if (sequence != null)
{
Console.Out.WriteLine(" Sequence");
for (int i = 0; i < sequence.Items.Count; i++)
{
XmlSchemaElement childElement = sequence.Items[i] as XmlSchemaElement;
XmlSchemaSequence innerSequence = sequence.Items[i] as XmlSchemaSequence;
XmlSchemaChoice innerChoice = sequence.Items[i] as XmlSchemaChoice;
XmlSchemaAll innerAll = sequence.Items[i] as XmlSchemaAll;
if (childElement != null)
{
Console.Out.WriteLine(" Element/Type: {0}:{1}", childElement.Name,
childElement.SchemaTypeName.Name);
}
else OutputElements(sequence.Items[i] as XmlSchemaParticle);
}
}
else if (choice != null)
{
Console.Out.WriteLine(" Choice");
for (int i = 0; i < choice.Items.Count; i++)
{
XmlSchemaElement childElement = choice.Items[i] as XmlSchemaElement;
XmlSchemaSequence innerSequence = choice.Items[i] as XmlSchemaSequence;
XmlSchemaChoice innerChoice = choice.Items[i] as XmlSchemaChoice;
XmlSchemaAll innerAll = choice.Items[i] as XmlSchemaAll;
if (childElement != null)
{
Console.Out.WriteLine(" Element/Type: {0}:{1}", childElement.Name,
childElement.SchemaTypeName.Name);
}
else OutputElements(choice.Items[i] as XmlSchemaParticle);
}
Console.Out.WriteLine();
}
else if (all != null)
{
Console.Out.WriteLine(" All");
for (int i = 0; i < all.Items.Count; i++)
{
XmlSchemaElement childElement = all.Items[i] as XmlSchemaElement;
XmlSchemaSequence innerSequence = all.Items[i] as XmlSchemaSequence;
XmlSchemaChoice innerChoice = all.Items[i] as XmlSchemaChoice;
XmlSchemaAll innerAll = all.Items[i] as XmlSchemaAll;
if (childElement != null)
{
Console.Out.WriteLine(" Element/Type: {0}:{1}", childElement.Name,
childElement.SchemaTypeName.Name);
}
else OutputElements(all.Items[i] as XmlSchemaParticle);
}
Console.Out.WriteLine();
}
}
static void ValidationCallback(object sender, ValidationEventArgs args)
{
if (args.Severity == XmlSeverityType.Warning)
Console.Write("WARNING: ");
else if (args.Severity == XmlSeverityType.Error)
Console.Write("ERROR: ");
Console.WriteLine(args.Message);
}
}
}
您可以针对更具体的情况对其进行改进.例如属性组、组、vs...现在我也得到了那个 xsd 的通用类.现在我将使用上面 xsd 引用的 xml 设置通用类(之前创建的).
And you can improve it for more specific cases. For example attributegroup, group, vs... Also now I got generic classes for that xsd. Now I gonna set the generic classes(which are made before) with an xml which is referenced by above xsd.
通过这些操作，我将取消在我的项目中逐个节点读取 xml 的机制.
With these operations I'm gonna cancel the mecahnism which is read an xml node by node in my project.
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