c# - 在 C# 中解析 PayPal SOAP 响应

Question

如何解析这个 XML 文件？我需要获取 Ack 和 Token 值

我试过了

XmlDocument doc = new XmlDocument()
doc.LoadXml(xml)
XmlNode Ack = doc.DocumentElement.SelectSingleNode("//Ack")
XmlNode Token = doc.DocumentElement.SelectSingleNode("//Token")

我的 xml 字符串如下所示，但 Ack 和 Token 为空。

<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:cc="urn:ebay:apis:CoreComponentTypes" xmlns:wsu="http://schemas.xmlsoap.org/ws/2002/07/utility" xmlns:saml="urn:oasis:names:tc:SAML:1.0:assertion" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:wsse="http://schemas.xmlsoap.org/ws/2002/12/secext" xmlns:ed="urn:ebay:apis:EnhancedDataTypes" xmlns:ebl="urn:ebay:apis:eBLBaseComponents" xmlns:ns="urn:ebay:api:PayPalAPI">
  <SOAP-ENV:Header>
    <Security xmlns="http://schemas.xmlsoap.org/ws/2002/12/secext" xsi:type="wsse:SecurityType"></Security>
    <RequesterCredentials xmlns="urn:ebay:api:PayPalAPI" xsi:type="ebl:CustomSecurityHeaderType">
      <Credentials xmlns="urn:ebay:apis:eBLBaseComponents" xsi:type="ebl:UserIdPasswordType">
        <Username xsi:type="xs:string"></Username>
        <Password xsi:type="xs:string"></Password>
        <Signature xsi:type="xs:string"></Signature>
        <Subject xsi:type="xs:string"></Subject>
      </Credentials>
    </RequesterCredentials>
  </SOAP-ENV:Header>
  <SOAP-ENV:Body id="_0">
    <SetExpressCheckoutResponse xmlns="urn:ebay:api:PayPalAPI">
      <Timestamp xmlns="urn:ebay:apis:eBLBaseComponents">2015-10-09T21:21:39Z</Timestamp>
      <Ack xmlns="urn:ebay:apis:eBLBaseComponents">Success</Ack>
      <CorrelationID xmlns="urn:ebay:apis:eBLBaseComponents">fsfsd8d6bb</CorrelationID>
      <Version xmlns="urn:ebay:apis:eBLBaseComponents">112</Version>
      <Build xmlns="urn:ebay:apis:eBLBaseComponents">18sdf778</Build>
      <Token xsi:type="ebl:ExpressCheckoutTokenType">EC-6YBsdfs24894B</Token>
    </SetExpressCheckoutResponse>
  </SOAP-ENV:Body>
</SOAP-ENV:Envelope>

Answer 1

如果您正在与 soap 服务交互，您可能希望添加服务引用并让它为您创建代理类。

使用 Linq to XML，您可以执行如下操作

    var parsedSoap = XElement.Parse(soapMessage);
    XNamespace  payPalResponseNs ="urn:ebay:api:PayPalAPI";
    XNamespace resultingResponseNs = "urn:ebay:apis:eBLBaseComponents";
    parsedSoap.Descendants()
              .Where(x=> x.Name == payPalResponseNs+"SetExpressCheckoutResponse")
              .Select(x=> new 
                    {
                        Timestamp = x.Element(resultingResponseNs +"Timestamp")?.Value,
                        Ack = x.Element(resultingResponseNs +"Ack")?.Value,
                        CorrelationID = x.Element(resultingResponseNs +"CorrelationID")?.Value,
                        Version = x.Element(resultingResponseNs +"Version")?.Value,
                        Build = x.Element(resultingResponseNs +"Build")?.Value,
                        Token = x.Element(payPalResponseNs +"Token")?.Value
                    }
                    );

或者更好