谁能告诉我这格式不正确 XML？

Question

上下文：我正在尝试向 ShipAccept api 发送 UPS 测试请求。我收到一条错误消息，告诉我 xml 文档格式不正确。我发送的实际请求包含所有必需的信息，这只是相同的格式。

<AccessRequest xml:lang="en-US">
  <AccessLicenseNumber>Your_License</AccessLicenseNumber>
  <UserId>Your_ID</UserId>
  <Password>Your_Password</Password>
</AccessRequest> 
</?xml version="1.0"?>
<ShipmentConfirmRequest xml:lang="en-US">
  <Request>
    <TransactionReference>
      <CustomerContext>Customer Comment</CustomerContext>
    </TransactionReference>
    <RequestAction>ShipConfirm</RequestAction>
    <RequestOption>validate</RequestOption>
  </Request>
  <LabelSpecification>
    <LabelPrintMethod>
      <Code>GIF</Code>
      <Description>gif file</Description>
    </LabelPrintMethod>
    <HTTPUserAgent>Mozilla/4.5</HTTPUserAgent>
    <LabelImageFormat>
      <Code>GIF</Code>
      <Description>gif</Description>
    </LabelImageFormat>
  </LabelSpecification>
  <Shipment>
   <RateInformation>
      <NegotiatedRatesIndicator/> 
    </RateInformation> 
    <Description/>
    <Shipper>
      <Name>Shipper Name</Name>
      <PhoneNumber>1234567890</PhoneNumber>
      <ShipperNumber>Ship Number</ShipperNumber>
      <TaxIdentificationNumber>1234567877</TaxIdentificationNumber>
      <Address>
        <AddressLine1>Address Line</AddressLine1>
        <City>City</City>
        <StateProvinceCode>MD</StateProvinceCode>
        <PostalCode>21093</PostalCode>
        <PostcodeExtendedLow></PostcodeExtendedLow>
        <CountryCode>US</CountryCode>
     </Address>
    </Shipper>
    <ShipTo>
     <CompanyName>Ship To Company Name</CompanyName>
      <AttentionName>Ship To Attn Name</AttentionName>
      <PhoneNumber>97225377171</PhoneNumber>
      <Address>
        <AddressLine1>Address Line</AddressLine1>
        <City>City</City>
        <StateProvinceCode>FL</StateProvinceCode>
        <PostalCode>32960</PostalCode>
        <CountryCode>US</CountryCode>
      </Address>
    </ShipTo>
    <ShipFrom>
      <CompanyName>Ship From Company Name</CompanyName>
      <AttentionName>Ship From Attn Name</AttentionName>
      <PhoneNumber>1234567890</PhoneNumber>
      <TaxIdentificationNumber>1234567877</TaxIdentificationNumber>
      <Address>
        <AddressLine1>Address Line</AddressLine1>
        <City>City</City>
        <StateProvinceCode>MD</StateProvinceCode>
        <PostalCode>21093</PostalCode>
        <CountryCode>US</CountryCode>
      </Address>
    </ShipFrom>
     <PaymentInformation>
      <Prepaid>
        <BillShipper>
          <AccountNumber>Ship Number</AccountNumber>
        </BillShipper>
      </Prepaid>
    </PaymentInformation>
    <Service>
      <Code>02</Code>
      <Description>2nd Day Air</Description>
    </Service>
    <Package>
      <PackagingType>
        <Code>02</Code>
        <Description>Customer Supplied</Description>
      </PackagingType>
      <Description>Package Description</Description>
      <ReferenceNumber>
        <Code>00</Code>
        <Value>Package</Value>
      </ReferenceNumber>
      <PackageWeight>
        <UnitOfMeasurement/>
        <Weight>60.0</Weight>
      </PackageWeight>
      <LargePackageIndicator/>
      <AdditionalHandling>0</AdditionalHandling>
    </Package>
  </Shipment>
</ShipmentConfirmRequest>

此外，缩进对 xml 重要吗？我的缩进错误是否是文档格式不正确的原因？我对 xml 没有任何经验，但不幸的是，UPS api 接受大多数东西作为 json 除了运输部件。非常感谢您提前为我提供的任何帮助！

编辑：所提供的代码是他们自己的正确请求示例，所以我感到非常困惑。

Answer 1

一个XML文档只能有一个根。你这里有 two XML 文件，在第二个文件的声明中有拼写错误。

</AccessRequest>          <-- end of the root element of the 1st doc


</?xml version="1.0"?>   <-- Probably an XML declaration of the 2nd doc.
                             Shouldn't have the slash.
<ShipmentConfirmRequest xml:lang="en-US">

谁能告诉我这格式不正确 XML？

Can anyone please tell me how this is not well formed XML?

xml

ups

well-formed