解析XML我写的XSD为XML配置文件,像这样:与定制模式/命名空间
<?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>
我产生(然后修改)的模式从我在Visual Studio设计像这样的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>
在实践中,我做了一个配置文件,像这样:
<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,规范ifying命名空间/模式改变了解析XmlDocument
中的文件的方式。例如,这个代码段将捕获一个XmlNode
的XmlNodeList
如果我没有指定的模式,但一旦指定的架构,没有节点匹配:
var xmlDoc = new XmlDocument();
xmlDoc.LoadXml(myXml);
var transferGroupNodes = xmlDoc.SelectNodes("//transferGroups/transferGroup")
.OfType<XmlNode>();
我怎么会收集分析的transferGroup
节点在这个情况下?我无法在网上找到一个体面的例子来向我展示如何做到这一点。
你*是否使用XmlDocument? LINQ to XML使得所有这一切变得非常简单......假设你使用.NET 3.5(如果你使用的是LINQ ...) – 2012-04-17 18:18:36
那么...... *必须*是一个很强的术语。我宁愿;我确信有一种方法可以做到这一点,我想知道它将如何完成。我在我的代码中的其他地方使用'XmlNode's和'XmlDocument's。 – 2012-04-17 18:22:17
如果您将* all *更改为LINQ to XML,则其余代码可能会变得更清晰。你可以在XPath中使用'XmlNamespaceManager',但是与LINQ to XML的清洁相比,这是非常糟糕的。我强烈建议在转换尽快开始:) – 2012-04-17 18:23:39