解析XML我寫的XSD爲XML配置文件,像這樣:與定製模式/命名空間
<?xml version="1.0" encoding="utf-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:t="http://www.foo.com/schemas/datatransfer"
targetNamespace="http://www.foo.com/schemas/datatransfer"
attributeFormDefault="unqualified" elementFormDefault="qualified">
<xs:element name="transferGroups">
<xs:complexType>
<xs:sequence>
<xs:element name="transferGroup" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="connectionString" type="xs:string" />
<xs:choice minOccurs="1" maxOccurs="1">
<xs:element name="script" minOccurs="0" maxOccurs="1">
<xs:complexType>
<xs:attribute name="path" type="xs:string" use="required" />
<xs:attribute name="fileName" type="xs:string" use="required" />
<xs:attribute name="useCompression" type="xs:boolean" use="required" />
</xs:complexType>
</xs:element>
<xs:element name="table" minOccurs="0" maxOccurs="1">
<xs:complexType>
<xs:attribute name="name" type="xs:string" use="required" />
<xs:attribute name="fileName" type="xs:string" use="required" />
<xs:attribute name="useCompression" type="xs:boolean" use="required" />
</xs:complexType>
</xs:element>
<xs:element name="tables" minOccurs="0" maxOccurs="1">
<xs:complexType>
<xs:sequence>
<xs:element name="table" maxOccurs="unbounded" minOccurs="1">
<xs:complexType>
<xs:attribute name="name" type="xs:string" use="required" />
<xs:attribute name="fileName" type="xs:string" use="required" />
<xs:attribute name="useCompression" type="xs:boolean" use="required" />
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:choice>
<xs:element name="format">
<xs:complexType>
<xs:sequence>
<xs:element name="addHeaderRow">
<xs:complexType>
<xs:attribute name="value" type="xs:boolean" use="required" />
</xs:complexType>
</xs:element>
<xs:element name="columnsDelimitedBy">
<xs:complexType>
<xs:attribute name="value" type="xs:string" use="required" />
</xs:complexType>
</xs:element>
<xs:element name="rowsDelimitedBy">
<xs:complexType>
<xs:attribute name="value" type="xs:string" use="required" />
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="transferSite">
<xs:complexType>
<xs:sequence>
<xs:element name="protocol">
<xs:complexType>
<xs:attribute name="value" type="xs:string" use="required" />
<xs:attribute name="address" type="xs:string" use="required" />
<xs:attribute name="port" type="xs:unsignedByte" use="required" />
</xs:complexType>
</xs:element>
<xs:element name="credentials">
<xs:complexType>
<xs:attribute name="userName" type="xs:string" use="required" />
<xs:attribute name="password" type="xs:string" use="required" />
</xs:complexType>
</xs:element>
<xs:element name="destinationFolder">
<xs:complexType>
<xs:attribute name="value" type="xs:string" use="required" />
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
<xs:attribute name="useCompression" type="xs:boolean" use="required" />
<xs:attribute name="fileName" type="xs:string" use="optional" />
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
我產生(然後修改)的模式從我在Visual Studio設計像這樣的XML文件:
<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<transferGroups>
<transferGroup useCompression="false" >
<connectionString>DSN=MyDSN;uid=foo;password=bar;</connectionString>
<tables>
<table name="dbo.Foo1" fileName="E:\Files\Foo1_{0:yyyyMMdd}.gz" useCompression="true" />
<table name="pub.Foo2" fileName="E:\Files\Foo2_{0:yyyyMMdd}.gz" useCompression="true" />
</tables>
<format>
<addHeaderRow value="true"/>
<columnsDelimitedBy value="|" />
<rowsDelimitedBy value="\r\n" />
</format>
<transferSite>
<protocol value="FTP" address="localhost" port="21" />
<credentials userName="anonymous" password="[email protected]" />
<destinationFolder value="/" />
</transferSite>
</transferGroup>
</transferGroups>
在實踐中,我做了一個配置文件,像這樣:
<transferGroups xmlns="http://www.foo.com/schemas/datatransfer">
<transferGroup useCompression="false" >
<connectionString>some connection string</connectionString>
<tables>
<table name="tableName1" fileName="tableName1_{0:yyyyMMdd}.gz" useCompression="true" />
<table name="tableName2" fileName="tableName2_{0:yyyyMMdd}.gz" useCompression="true" />
</tables>
<format>
<addHeaderRow value="true"/>
<columnsDelimitedBy value="|" />
<rowsDelimitedBy value="\r\n" />
</format>
<transferSite>
<protocol value="FTP" address="ftp.someplace.com" port="21" />
<credentials userName="foo" password="bar" />
<destinationFolder value="subFolder1" />
</transferSite>
</transferGroup>
</transferGroups>
我不知道,但是,規範ifying命名空間/模式改變了解析XmlDocument
中的文件的方式。例如,這個代碼段將捕獲一個XmlNode
的XmlNodeList
如果我沒有指定的模式,但一旦指定的架構,沒有節點匹配:
var xmlDoc = new XmlDocument();
xmlDoc.LoadXml(myXml);
var transferGroupNodes = xmlDoc.SelectNodes("//transferGroups/transferGroup")
.OfType<XmlNode>();
我怎麼會收集分析的transferGroup
節點在這個情況下?我無法在網上找到一個體面的例子來向我展示如何做到這一點。
你*是否使用XmlDocument? LINQ to XML使得所有這一切變得非常簡單......假設你使用.NET 3.5(如果你使用的是LINQ ...) – 2012-04-17 18:18:36
那麼...... *必須*是一個很強的術語。我寧願;我確信有一種方法可以做到這一點,我想知道它將如何完成。我在我的代碼中的其他地方使用'XmlNode's和'XmlDocument's。 – 2012-04-17 18:22:17
如果您將* all *更改爲LINQ to XML,則其餘代碼可能會變得更清晰。你可以在XPath中使用'XmlNamespaceManager',但是與LINQ to XML的清潔相比,這是非常糟糕的。我強烈建議在轉換儘快開始:) – 2012-04-17 18:23:39