使用xs：assert XSD 1.1比较来自不同父项的两个xml元素

问题描述

例如，我可以使用xs：assert比较来自不同父项的两个xml元素吗？我想比较或可能正在检查NbOfTxs =时间元素出现的次数CdtTrftxInf。

此刻我出现错误，即 模式类型为'GroupHeader32'的元素'GrpHdr'的断言评估（'pa：NbOfTxs = pa：EndToEndId'）不成功。

如有需要，乐意提供更多的商品信息

<xs:schema attributeFormDefault="unqualified" xmlns="urn:iso:std:iso:20022:tech:xsd:pain.001.001.03"
    xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified"
    targetNamespace="urn:iso:std:iso:20022:tech:xsd:pain.001.001.03"
    xmlns:vc="http://www.w3.org/2007/XMLSchema-versioning" vc:minVersion="1.1"
    xmlns:xerces="http://xerces.apache.org">    <xs:element name="Document" type="Document"/>

    <xs:complexType name="Document">
        <xs:sequence>
            <xs:element name="CstmrCdtTrfInitn" type="CustomerCreditTransferInitiationV03"/>
        </xs:sequence>
    </xs:complexType>

    <xs:complexType name="CustomerCreditTransferInitiationV03">
        <xs:sequence>
            <xs:element name="GrpHdr" type="GroupHeader32"/>
            <xs:element maxOccurs="unbounded" minOccurs="1" name="PmtInf" type="PaymentInstructioninformation3"/>
        </xs:sequence>
    </xs:complexType>

    <xs:complexType name="GroupHeader32">       
        <xs:sequence>
            <xs:element name="Msgid" type="Max35Text"/>
            <xs:element name="CreDtTm" type="ISODateTime"/>
            <xs:element maxOccurs="2" minOccurs="0" name="Authstn" type="Authorisation1Choice"/>
            <xs:element name="NbOfTxs" type="Max15NumericText"/>
            <xs:element maxOccurs="1" minOccurs="0" name="CtrlSum" type="DecimalNumber"/>
            <xs:element name="InitgPty" type="PartyIdentification32"/>
            <xs:element maxOccurs="1" minOccurs="0" name="FwdgAgt" type="BranchAndFinancialInstitutionIdentification4"/>
        </xs:sequence>
        <xs:assert test="pa:Msgid eq pa:EndToEndId"/>
    </xs:complexType>

   <xs:complexType name="CustomerCreditTransferInitiationV03">
        <xs:sequence>
            <xs:element name="GrpHdr" type="GroupHeader32"/>
            <xs:element maxOccurs="unbounded" minOccurs="1" name="PmtInf" type="PaymentInstructioninformation3"/>
        </xs:sequence>
    </xs:complexType>

        <xs:complexType name="Document">
            <xs:sequence>
                <xs:element name="CstmrCdtTrfInitn" type="CustomerCreditTransferInitiationV03"/>
            </xs:sequence>
        </xs:complexType>

    <xs:complexType name="PaymentIdentification1">
        <xs:sequence>
            <xs:element maxOccurs="1" minOccurs="0" name="InstrId" type="Max35Text"/>
            <xs:element name="EndToEndId" type="Max35Text"/>
        </xs:sequence>
    </xs:complexType>

 <xs:complexType name="PaymentInstructioninformation3">
        <xs:sequence>
            <xs:element name="PmtInfId" type="Max35Text"/>
            <xs:element name="PmtMtd" type="PaymentMethod3Code"/>
            <xs:element maxOccurs="1" minOccurs="0" name="BtchBookg" type="BatchBookingIndicator"/>
            <xs:element maxOccurs="1" minOccurs="0" name="NbOfTxs" type="Max15NumericText"/>
            <xs:element maxOccurs="1" minOccurs="0" name="CtrlSum" type="DecimalNumber"/>
            <xs:element maxOccurs="1" minOccurs="0" name="PmtTpInf" type="PaymentTypeinformation19"/>
            <xs:element name="ReqdExctnDt" type="ISODate"/>
            <xs:element maxOccurs="1" minOccurs="0" name="PoolgAdjstmntDt" type="ISODate"/>
            <xs:element name="Dbtr" type="PartyIdentification32"/>
            <xs:element name="DbtrAcct" type="CashAccount16"/>
            <xs:element name="DbtrAgt" type="BranchAndFinancialInstitutionIdentification4"/>
            <xs:element maxOccurs="1" minOccurs="0" name="DbtrAgtAcct" type="CashAccount16"/>
            <xs:element maxOccurs="1" minOccurs="0" name="UltmtDbtr" type="PartyIdentification32"/>
            <xs:element maxOccurs="1" minOccurs="0" name="ChrgBr" type="ChargeBearerType1Code"/>
            <xs:element maxOccurs="1" minOccurs="0" name="ChrgsAcct" type="CashAccount16"/>
            <xs:element maxOccurs="1" minOccurs="0" name="ChrgsAcctAgt" type="BranchAndFinancialInstitutionIdentification4"/>
            <xs:element maxOccurs="unbounded" minOccurs="1" name="CdtTrftxInf" type="CreditTransferTransactioninformation10"/>
        </xs:sequence>
    </xs:complexType>
</xs:schema>

    <xs:complexType name="CreditTransferTransactioninformation10">
        <xs:sequence>
            <xs:element name="PmtId" type="PaymentIdentification1"/>
            <xs:element maxOccurs="1" minOccurs="0" name="PmtTpInf" type="PaymentTypeinformation19"/>
            <xs:element name="Amt" type="AmountType3Choice"/>
            <xs:element maxOccurs="1" minOccurs="0" name="XchgRateInf" type="ExchangeRateinformation1"/>
            <xs:element maxOccurs="1" minOccurs="0" name="ChrgBr" type="ChargeBearerType1Code"/>
            <xs:element maxOccurs="1" minOccurs="0" name="ChqInstr" type="Cheque6"/>
            <xs:element maxOccurs="1" minOccurs="0" name="UltmtDbtr" type="PartyIdentification32"/>
            <xs:element maxOccurs="1" minOccurs="0" name="IntrmyAgt1" type="BranchAndFinancialInstitutionIdentification4"/>
            <xs:element maxOccurs="1" minOccurs="0" name="IntrmyAgt1Acct" type="CashAccount16"/>
            <xs:element maxOccurs="1" minOccurs="0" name="IntrmyAgt2" type="BranchAndFinancialInstitutionIdentification4"/>
            <xs:element maxOccurs="1" minOccurs="0" name="IntrmyAgt2Acct" type="CashAccount16"/>
            <xs:element maxOccurs="1" minOccurs="0" name="IntrmyAgt3" type="BranchAndFinancialInstitutionIdentification4"/>
            <xs:element maxOccurs="1" minOccurs="0" name="IntrmyAgt3Acct" type="CashAccount16"/>
            <xs:element maxOccurs="1" minOccurs="0" name="CdtrAgt" type="BranchAndFinancialInstitutionIdentification4"/>
            <xs:element maxOccurs="1" minOccurs="0" name="CdtrAgtAcct" type="CashAccount16"/>
            <xs:element maxOccurs="1" minOccurs="0" name="Cdtr" type="PartyIdentification32"/>
            <xs:element maxOccurs="1" minOccurs="0" name="CdtrAcct" type="CashAccount16"/>
            <xs:element maxOccurs="1" minOccurs="0" name="UltmtCdtr" type="PartyIdentification32"/>
            <xs:element maxOccurs="unbounded" minOccurs="0" name="InstrForCdtrAgt" type="InstructionForCreditorAgent1"/>
            <xs:element maxOccurs="1" minOccurs="0" name="InstrForDbtrAgt" type="Max140Text"/>
            <xs:element maxOccurs="1" minOccurs="0" name="Purp" type="Purpose2Choice"/>
            <xs:element maxOccurs="10" minOccurs="0" name="RgltryRptg" type="RegulatoryReporting3"/>
            <xs:element maxOccurs="1" minOccurs="0" name="Tax" type="Taxinformation3"/>
            <xs:element maxOccurs="10" minOccurs="0" name="RltdRmtInf" type="RemittanceLocation2"/>
            <xs:element maxOccurs="1" minOccurs="0" name="RmtInf" type="Remittanceinformation5"/>
        </xs:sequence>
    </xs:complexType>

我的示例XML看起来像这样：我正在尝试将Msgid与endtoendid进行比较，并且还想检查NbOfTxs字段值是否应等于出现的次数

<Document xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns="urn:iso:std:iso:20022:tech:xsd:pain.001.001.03">
    <CstmrCdtTrfInitn>
        <GrpHdr>
            <Msgid>1</Msgid>
            <NbOfTxs>2</NbOfTxs>
        </GrpHdr>
        <PmtInf> 
            <PmtInfId>ABC</PmtInfId>
            <CdtTrftxInf>
                <PmtId>
                    <EndToEndId>1</EndToEndId>
                </PmtId>
            </CdtTrftxInf>
            <CdtTrftxInf>
                <PmtId>
                    <EndToEndId>2</EndToEndId>
                </PmtId>
            </CdtTrftxInf>
        </PmtInf>
    </CstmrCdtTrfInitn>
</Document>

解决方法

断言必须放在所有测试的XML组件共有的祖先中；断言不能引用不是出现断言的元素的后代的组件。

在您的情况下，在GrpHdr上的断言不能引用EndToEndId，因为EndToEndId不是GrpHldr的后代。相反，该断言必须出现在CstmrCdtTrfInitn和GrpHdr的共同祖先EndToEndId（或更高版本）上。

还要注意确定您的断言是否打算适用于一个或所有组件（如果可以存在多个组件）。