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我有以下 Xml，我想针对 Xsd Schema（如下）进行验证。我正在尝试使用下面给出的 C# 函数针对给定的 Xsd Schema 验证 Xml。我收到这种通用类型的错误消息“根级别的数据无效。第 1 行，位置 1”。这发生在“while(vr.Read())”。

您能否解释一下这个问题的原因和解决方案，或者有什么方法可以解决这些类型的一般错误。

从我的 Xsd 架构中可以看出，它还引用了其他子 xsd 文件。我想知道它是否与错误有关。

温暖的问候

XML 文件

<?xml version="1.0" encoding="utf-8"?>
<n1:Form109495CTransmittalUpstream xmlns="urn:us:gov:treasury:irs:ext:aca:air:6.2" xmlns:irs="urn:us:gov:treasury:irs:common" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:n1="urn:us:gov:treasury:irs:msg:form1094-1095Ctransmitterupstreammessage" xsi:schemaLocation="urn:us:gov:treasury:irs:msg:form1094-1095Ctransmitterupstreammessage IRS-Form1094-1095CTransmitterUpstreamMessage.xsd">
 <Form1094CUpstreamDetail recordType="C" lineNum="0">
  <--MORE XML TAGS HERE -->
  </Form1094CUpstreamDetail>
 </n1:Form109495CTransmittalUpstream>

XSD 架构

 <?xml version="1.0" encoding="UTF-8"?>
 <xsd:schema xmlns="urn:us:gov:treasury:irs:msg:form1094-1095Ctransmitterupstreammessage"
xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:irs="urn:us:gov:treasury:irs:common"
xmlns:air6.2="urn:us:gov:treasury:irs:ext:aca:air:6.2"
targetNamespace="urn:us:gov:treasury:irs:msg:form1094-1095Ctransmitterupstreammessage"
elementFormDefault="qualified" attributeFormDefault="unqualified" version="1.0">
<xsd:annotation>
    <xsd:appinfo>
        <release>ACA Release 6.2</release>
    </xsd:appinfo>
    <xsd:documentation>Form-1094C (Issuer) Transmittal and Form 1095C - Transmittal of Health Insurance Coverage Statements
        <VersionNum>5.2</VersionNum>
        <VersionEffectiveBeginDt>2015-01-06</VersionEffectiveBeginDt>
    </xsd:documentation>
</xsd:annotation>
<!-- ===== Imports ===== -->
<xsd:import namespace="urn:us:gov:treasury:irs:common" schemaLocation="common-IRS-CAC.xsd"/>
<xsd:import namespace="urn:us:gov:treasury:irs:ext:aca:air:6.2"
    schemaLocation="ext-IRS-EXT-ACA-AIR-6.2.xsd"/>
<xsd:element name="Form109495CTransmittalUpstream" type="Form109495CTransmittalUpstreamType">
    <xsd:annotation>
        <xsd:documentation>
            <Component>
                <DictionaryEntryNm>Form109495C Transmission Upstream</DictionaryEntryNm>
                <MajorVersionNum>1</MajorVersionNum>
                <MinorVersionNum>1</MinorVersionNum>
                <VersionEffectiveBeginDt>2015-01-06</VersionEffectiveBeginDt>
                <VersionDescriptionTxt>Initial Version</VersionDescriptionTxt>
                <DescriptionTxt>The elements associated with 1094C data generated EOY report</DescriptionTxt>
            </Component>
        </xsd:documentation>
    </xsd:annotation>
</xsd:element>
<xsd:complexType name="Form109495CTransmittalUpstreamType">
    <xsd:annotation>
        <xsd:documentation>
            <Component>
                <DictionaryEntryNm>Form109495C Transmission Upstream Type</DictionaryEntryNm>
                <MajorVersionNum>1</MajorVersionNum>
                <MinorVersionNum>1</MinorVersionNum>
                <VersionEffectiveBeginDt>2014-11-05</VersionEffectiveBeginDt>
                <VersionDescriptionTxt>Initial Version</VersionDescriptionTxt>
                <DescriptionTxt>Transmission type for 1094C forms upstream data generated EOY report</DescriptionTxt>
            </Component>
        </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
        <xsd:element ref="air6.2:Form1094CUpstreamDetail" minOccurs="1" maxOccurs="unbounded"/>
    </xsd:sequence>
</xsd:complexType>
</xsd:schema>

以下是 C# 验证函数：

    /// <SUMMARY>
    /// This method validates an xml string against an xml schema.
    /// </SUMMARY>
    /// <PARAM name="xml">StringReader containing xml</PARAM>
    /// <PARAM name="schemaNamespace">XML Schema Namespace</PARAM>
    /// <PARAM name="schemaUri">XML Schema Uri</PARAM>
    /// <RETURNS>bool</RETURNS>
    public bool ValidXmlDoc(StringReader xml, 
           string schemaNamespace, string schemaUri)
    {
        // Continue?
        if(xml == null || schemaNamespace == null || schemaUri == null)
        {
            return false;
        }

        isValidXml = true;
        XmlValidatingReader vr;
        XmlTextReader tr;
        XmlSchemaCollection schemaCol = new XmlSchemaCollection();
        schemaCol.Add(schemaNamespace, schemaUri);

        try 
        { 
            // Read the xml.
            tr = new XmlTextReader(xml);
            // Create the validator.
            vr = new XmlValidatingReader(tr);
            // Set the validation tyep.
            vr.ValidationType = ValidationType.Schema;
            // Add the schema.
            if(schemaCol != null)
            {
                vr.Schemas.Add(schemaCol);
            }
            // Set the validation event handler.
            vr.ValidationEventHandler += 
               new ValidationEventHandler(ValidationCallBack);
            // Read the xml schema.
            while(vr.Read()) 
            { 
            } 

            vr.Close(); 

            return isValidXml;
        } 
        catch(Exception ex) 
        { 
            this.ValidationError = ex.Message;
            return false; 
        } 
        finally
        {
            // Clean up...
            vr = null;
            tr = null;
        }
    }
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1 回答 1

1

AFAIK XmlValidatingReader 已过时。我认为使用 XmlReader 会更好。为了控制 URI 解析（如果架构引用其他架构作为相对路径），您可以通过从 XmlUrlResolver 继承并覆盖 ResolveUri 方法来创建自己的 XML URL 解析器类。然后将其分配给 XmlReaderSettings 类的 XmlResolver 成员。但我希望事情不会恶化到那个地步。:) 希望。:) 这是我可以建议的示意图代码：

            XmlTextReader reader = new XmlTextReader(pathToXSD);
            XmlSchema schema = XmlSchema.Read(reader,     ValidationEventHandler);
            XmlReaderSettings settings = new XmlReaderSettings();

            settings.ValidationType = ValidationType.Schema;
            settings.ValidationFlags |= XmlSchemaValidationFlags.ProcessInlineSchema;
            settings.ValidationFlags |= XmlSchemaValidationFlags.ProcessSchemaLocation;
            settings.ValidationFlags |= XmlSchemaValidationFlags.ReportValidationWarnings;
            settings.ValidationEventHandler += new ValidationEventHandler(ValidationEventHandler);
            settings.Schemas.Add(schema);

            using (StringReader xmlStream = new StringReader(xml))
            {
                using (XmlReader xmlReader = XmlReader.Create(xmlStream, settings))
                {
                    while (xmlReader.Read()) { }
                }
            }
于 2016-01-08T15:40:57.167 回答