在代码中从 XML 创建 XSD

问题描述

我正在使用 MSDN 中的这段代码从 XML 创建 XSD

I am using this piece of code from MSDN to create an XSD from an XML

XmlReader reader = XmlReader.Create("contosoBooks.xml");
XmlSchemaSet schemaSet = new XmlSchemaSet();
XmlSchemaInference schema = new XmlSchemaInference();

schemaSet = schema.InferSchema(reader);

foreach (XmlSchema s in schemaSet.Schemas())
{
   textbox.text = s.ToString();
}

我想根据我的 xml 文件输出 .xsd.当我生成 .xsd 文件时，我得到的唯一内容是:System.Xml.Schema.XmlSchema

I want to output the .xsd based on my xml file. When I generate the .xsd file, the only content I get inside it is: System.Xml.Schema.XmlSchema

当我使用 Visual Studio 选项生成 XSD 来创建架构时，它会正确显示.但是，我有超过 150 个 xml 文档需要创建 XSD，因此需要一个编程选项.有人可以帮忙吗?

When I generate the XSD using Visual Studio option to create Schema, it comes out properly. However, I have over 150 xml docs that I need to create XSD for hence need a programmatic option. Can anyone help?

推荐答案

这就是你缺少的...而不是简单地执行 s.ToString()，而是这样做:

This is what you're missing... instead of simply doing s.ToString(), do this:

XmlWriter writer;
int count = 0;
foreach (XmlSchema s in schemaSet.Schemas())
{
    writer = XmlWriter.Create((count++).ToString() + "_contosobooks.xsd");
    s.Write(writer);
    writer.Close();
    Console.WriteLine("Done " + count);
}
reader.Close();

然后您可以编写适当的逻辑来更优雅地进行读/写，读取许多 xml 文件并创建相应的 xsd 文件等.

You can then write proper logic to do the read/write more gracefully, read many xml files and create corresponding xsd files, etc.

我从这里获取了 contosobooks.xml:https://code.google.com/p/code4cs/source/browse/trunk/AppCase/dNet/Xml/data/contosoBooks.xml?spec=svn135&r=135

I took the contosobooks.xml from here: https://code.google.com/p/code4cs/source/browse/trunk/AppCase/dNet/Xml/data/contosoBooks.xml?spec=svn135&r=135

输出 xsd 为:

<?xml version="1.0" encoding="utf-8"?>
<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.contoso.com/books" xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <xs:element name="bookstore">
        <xs:complexType>
            <xs:sequence>
                <xs:element maxOccurs="unbounded" name="book">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element name="title" type="xs:string" />
                            <xs:element name="author">
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element minOccurs="0" name="name" type="xs:string" />
                                        <xs:element minOccurs="0" name="first-name" type="xs:string" />
                                        <xs:element minOccurs="0" name="last-name" type="xs:string" />
                                    </xs:sequence>
                                </xs:complexType>
                            </xs:element>
                            <xs:element name="price" type="xs:decimal" />
                        </xs:sequence>
                        <xs:attribute name="genre" type="xs:string" use="required" />
                        <xs:attribute name="publicationdate" type="xs:date" use="required" />
                        <xs:attribute name="ISBN" type="xs:string" use="required" />
                    </xs:complexType>
                </xs:element>
            </xs:sequence>
        </xs:complexType>
    </xs:element>
</xs:schema>

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