为什么我收到错误"参数不正确"当我尝试验证我的xml?

时间:2017-11-30 22:31:47

标签: xml vba domdocument

我正在尝试针对模式验证我的xml,但是当我运行代码时,我收到错误。 xml(sample.xml)是:

<?xml version="1.0" encoding="utf-8"?>
<Catalog xmlns:dt="urn:schemas-microsoft-com:datatypes">
  <Rec>
    <ITEMS dt:dt="string"/>
    <QTY dt:dt="string">1</QTY>
    <CATALOG dt:dt="string">1492</CATALOG>
    <MFG dt:dt="string">BA</MFG>
    <ASSYCODE dt:dt="string"/>
    <DESC dt:dt="string">MCB 1 POLE 2A TYPE C</DESC>
    <QUERY2 dt:dt="string">1MCB</QUERY2>
    <QUERY3 dt:dt="string">2A</QUERY3>
    <MISC1 dt:dt="string"/>
    <MISC2 dt:dt="string"/>
    <USER1 dt:dt="string">EAMCB122</USER1>
    <USER2 dt:dt="string"/>
    <USER3 dt:dt="string"/>
    <TABNAM dt:dt="string">CB</TABNAM>
    <TAGS dt:dt="string">Q2-4D</TAGS>
    <DESC1 dt:dt="string"/>
    <DESC2 dt:dt="string"/>
    <DESC3 dt:dt="string"/>
    <INST dt:dt="string"/>
    <LOC dt:dt="string"/>
    <UM dt:dt="string"/>
    <HDL dt:dt="string">h=6706</HDL>
    <DWGIX dt:dt="string">7</DWGIX>
    <REF dt:dt="string">-4D</REF>
    <SH dt:dt="string">2</SH>
    <SOURCE dt:dt="string">ELECTRICAL</SOURCE>
  </Rec>
</Catalog>

和架构(sample.xsd)是:

<?xml version="1.0" encoding="UTF-8"?>
   <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">
         <!-- XML Schema Generated from XML Document on Thu Nov 30 2017 16:39:38 GMT+0000 (GMT Standard Time) -->
         <!-- with XmlGrid.net Free Online Service http://xmlgrid.net -->
         <xs:element name="Catalog">
               <xs:complexType>
                     <xs:sequence>
                           <xs:element name="Rec" maxOccurs="unbounded">
                                 <xs:complexType>
                                       <xs:sequence>
                                             <xs:element name="ITEMS">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="QTY" type="xs:int">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="CATALOG" type="xs:int">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="MFG" type="xs:string">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="ASSYCODE">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="DESC" type="xs:string">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="QUERY2" type="xs:string">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="QUERY3" type="xs:string">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="MISC1">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="MISC2">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="USER1" type="xs:string">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="USER2">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="USER3">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="TABNAM" type="xs:string">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="TAGS" type="xs:string">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="DESC1">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="DESC2">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="DESC3">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="INST">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="LOC">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="UM">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="HDL" type="xs:string">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="DWGIX" type="xs:int">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="REF" type="xs:string">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="SH" type="xs:int">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                             <xs:element name="SOURCE" type="xs:string">
                                                   <xs:complexType>
                                                         <xs:attribute name="dt:dt" type="xs:string"></xs:attribute>
                                                   </xs:complexType>
                                             </xs:element>
                                       </xs:sequence>
                                 </xs:complexType>
                           </xs:element>
                     </xs:sequence>
                     <xs:attribute name="xmlns:dt" type="xs:string"></xs:attribute>
               </xs:complexType>
         </xs:element>
   </xs:schema>

我使用xml文件在线生成了模式,所以我有理由相信那里不应该有任何错误。 我使用的vba代码是:

Sub test()

    Dim xDoc As New MSXML2.DOMDocument60
    Dim xLists As IXMLDOMElement


    Const dir = "C:\"
    Dim xSchema As New MSXML2.XMLSchemaCache60
    Dim xSchemaErr As IXMLDOMParseError

    Call xSchema.Add("urn:schemas-microsoft-com:datatypes", LoadXML(dir & "sample.xsd"))

    Set xDoc = LoadXML(dir & "sample.xml")
    Set xDoc.Schemas = xSchema

    Set xSchemaErr = xDoc.Validate

    Set xDoc = Nothing

End Sub

Private Function LoadXML(strFilename As String) As MSXML2.DOMDocument60

    Dim xDoc As New MSXML2.DOMDocument60
    Dim bLoadSucceeded As Boolean
    Dim fso As New FileSystemObject

    With xDoc
        .async = False
        .validateOnParse = False
        .resolveExternals = False
    End With

    If (fso.FileExists(strFilename)) Then
        bLoadSucceeded = xDoc.Load(strFilename)
        If (bLoadSucceeded) Then
            Set LoadXML = xDoc
        Else
            Call MsgBox("Load XML document failed", vbCritical, "Warning")
            Set xDoc = Nothing
            Exit Function
        End If
    Else
        Call MsgBox("Unable to find specified XML file to load", vbCritical, "Warning")
        Set xDoc = Nothing
        Exit Function
    End If

    Set xDoc = Nothing

End Function

问题出现在这里

Call xSchema.Add("urn:schemas-microsoft-com:datatypes", LoadXML(dir & "sample.xsd")) 

错误The parameter is incorrect,但我看不出哪个参数导致了问题。查看XMLSchemaCache60的add方法的文档,我看不出有任何关于此错误的提及。

有谁知道这可能是什么?

由于

编辑: 好吧,在过去几天仔细考虑之后,我仍然不确定我是否完全理解来自Michael Kay的评论,而不是那些暗示xsd几乎没用的评论,因为我和xmlgrid一样无用.net,我试了另一个;这次https://devutilsonline.com/xsd-xml/generate-xsd-from-xml这就是我得到的:

<?xml version="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" attributeFormDefault="unqualified" elementFormDefault="qualified">
  <xs:element name="Catalog" type="CatalogType"/>
  <xs:complexType name="ITEMSType">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="QTYType">
    <xs:simpleContent>
      <xs:extension base="xs:byte">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="CATALOGType">
    <xs:simpleContent>
      <xs:extension base="xs:short">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="MFGType">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="ASSYCODEType">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="DESCType">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="QUERY2Type">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="QUERY3Type">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="MISC1Type">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="MISC2Type">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="USER1Type">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="USER2Type">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="USER3Type">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="TABNAMType">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="TAGSType">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="DESC1Type">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="DESC2Type">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="DESC3Type">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="INSTType">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="LOCType">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="UMType">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="HDLType">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="DWGIXType">
    <xs:simpleContent>
      <xs:extension base="xs:byte">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="REFType">
    <xs:simpleContent>
      <xs:extension base="xs:float">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="SHType">
    <xs:simpleContent>
      <xs:extension base="xs:byte">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="SOURCEType">
    <xs:simpleContent>
      <xs:extension base="xs:string">
        <xs:attribute xmlns:urn="urn:schemas-microsoft-com:datatypes" ref="urn:dt"/>
      </xs:extension>
    </xs:simpleContent>
  </xs:complexType>
  <xs:complexType name="RecType">
    <xs:sequence>
      <xs:element type="ITEMSType" name="ITEMS"/>
      <xs:element type="QTYType" name="QTY"/>
      <xs:element type="CATALOGType" name="CATALOG"/>
      <xs:element type="MFGType" name="MFG"/>
      <xs:element type="ASSYCODEType" name="ASSYCODE"/>
      <xs:element type="DESCType" name="DESC"/>
      <xs:element type="QUERY2Type" name="QUERY2"/>
      <xs:element type="QUERY3Type" name="QUERY3"/>
      <xs:element type="MISC1Type" name="MISC1"/>
      <xs:element type="MISC2Type" name="MISC2"/>
      <xs:element type="USER1Type" name="USER1"/>
      <xs:element type="USER2Type" name="USER2"/>
      <xs:element type="USER3Type" name="USER3"/>
      <xs:element type="TABNAMType" name="TABNAM"/>
      <xs:element type="TAGSType" name="TAGS"/>
      <xs:element type="DESC1Type" name="DESC1"/>
      <xs:element type="DESC2Type" name="DESC2"/>
      <xs:element type="DESC3Type" name="DESC3"/>
      <xs:element type="INSTType" name="INST"/>
      <xs:element type="LOCType" name="LOC"/>
      <xs:element type="UMType" name="UM"/>
      <xs:element type="HDLType" name="HDL"/>
      <xs:element type="DWGIXType" name="DWGIX"/>
      <xs:element type="REFType" name="REF"/>
      <xs:element type="SHType" name="SH"/>
      <xs:element type="SOURCEType" name="SOURCE"/>
    </xs:sequence>
  </xs:complexType>
  <xs:complexType name="CatalogType">
    <xs:sequence>
      <xs:element type="RecType" name="Rec"/>
    </xs:sequence>
  </xs:complexType>
</xs:schema>

看起来它已经解决了导入架构问题?????但是我现在得到一个新的错误:

sample.xsd#/schema/complexType[17][@name = 'DESC2Type']/simpleContent[1]/extension[1]/attribute[1]
Undeclared XSD attribute : '{urn:schemas-microsoft-com:datatypes}dt'.

我无法理解为什么这是一个未声明的属性 - 对我来说,这看起来就像同一个文档中的其余部分,虽然名称不同!!

2 个答案:

答案 0 :(得分:0)

架构确实无效(这意味着您选择的在线工具是错误的 - 事实上,这是废话)。

首先,

<xs:attribute name="dt:dt" type="xs:string">

非常不正确:name属性必须是简单的NCName(无冒号名称)。如果属性与包含元素位于不同的名称空间中,则模式需要包含该名称空间的单独模式文档的xs:import;该属性需要在导入的模式文档中声明,并使用ref属性在主模式文档中引用:

<xs:attribute ref="dt:dt"/> 

其次,元素声明不能同时具有type属性和complexType子元素。描述具有属性且具有文本内容的元素的正确方法是使用“具有简单内容的复杂类型”,如下所述:

XML Schema: Element with attributes containing only text?

我不得不说你得到的错误信息也很糟糕。 Saxon为您提供了以下形式的消息列表:

Error at xs:attribute on line 13 column 81 of test.xsd:
  No namespace prefix is allowed in this name {dt:dt}

后面是表格的消息列表:

Error at xs:element on line 16 column 66 of test.xsd:
  A <complexType> element must not appear as a child of an <xs:element> with a @type attribute

答案 1 :(得分:0)

如果您正确地错误处理了捕获运行时异常的方法,尤其是使用MSXML之类的API,则会收到更相关的错误消息,显示架构问题。

Sub test()
On Error GoTo ErrHandle
    ...


ExitHandle:
    Set xDoc = Nothing
    Exit Sub

ErrHandle:
    MsgBox Err.Number & " - " & Err.Description, vbCritical
    Resume ExitHandle
End Sub

' CHANGED FCT NAME TO AVOID NAME CLASH WITH MSXML's LOADXML()    
Private Function ProcXML(strFilename As String) As MSXML2.DOMDocument60
On Error GoTo ErrHandle
    ...

ExitHandle:
    Set xDoc = Nothing
    Exit Function

ErrHandle:
    MsgBox Err.Number & " - " & Err.Description, vbCritical
    Resume ExitHandle
End Function

Dialog Message (我将模式文件命名为CatalogExcel.xsd)

Error Message