Question

我使用http://www.freeformatter.com/xpath-tester.html在

上获得UserId值

  <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" 
                    xmlns:paf="http://paf.mycompany.com/">
     <soapenv:Header/>
     <soapenv:Body>
        <paf:requestpafBean>
           <!--Optional:-->
           <arg0>
              <!--Optional:-->
              <UserId>?</UserId>
              <!--Optional:-->
              <DateNow>?</DateNow>
           </arg0>
        </paf:requestpafBean>
     </soapenv:Body>
  </soapenv:Envelope>

测试此XPath表达式：

//paf:UserId[1]/@text

为什么我没有匹配？

Answer 1

以下XPath表达式

//UserId/text()

将根据要求选择?。

备注：

UserId没有名称空间，因此您不想要paf:UserId。

如果有多个UserId，您可以将UserId[1]添加到您的text 表达

UserId上没有UserId/@text属性，因此您不想要text()，但UserId下方有UserId/text()个节点，所以你确实想要UserId。

如果string(//UserId)下可能有进一步的标记，您可能需要其字符串值{ "body": { "intent": "sale", "payer": { "payment_method": "credit_card", "funding_instruments": [ { "credit_card": { "first_name": "dfgdfg", "billing_address": { "phone": "435435435", "postal_code": "54343", "line1": "******", "country_code": "AU", "city": "rtytr" }, "expire_month": 3, "number": "xxxxxxxxxxxx4545", "last_name": "dfgdfg", "cvv2": "***", "expire_year": 2021, "type": "visa" } } ] }, "transactions": [ { "invoice_number": "#", "amount": { "currency": "USD", "total": "235.00", "details": { "subtotal": "235.00", "tax": "0.00", "shipping": "0.00" } }, "description": "descr...", "item_list": { "items": [ { "sku": "sku", "currency": "USD", "price": "235.00", "name": "Credits 5", "quantity": "1" } ] } } ] }, "header": { "x-pp-ads-performed": "false", "content-length": "624", "paypal-request-id": "44eae10f-64cb-43e6-b77e-74XXXXX56338", "x-pp-silover": "name%3DSANDBOX3.API.1%26silo_version%3D1880%26app%3Dplatformapiserv%26TIME%3D4228306518", "accept": "*/*", "client-auth": "No cert", "authorization": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxmRN4", "host": "api.sandbox.paypal.com", "user-agent": "PayPalSDK/PayPal-NET-SDK 1.7.3 (lang\\u003dDOTNET;v\\u003d4.5.1;clr\\u003d4.0.30319.42000;bit\\u003d64;os\\u003dMicrosoft Windows NT 6.2.9200.0)", "x-slr-orig-script_uri": "https://api.sandbox.paypal.com/v1/payments/payment", "x-pp-corrid": "2d94a472d94a2", "pp_remote_addr": "XXX.XXX.XXX.XXX", "content-type": "application/json", "x-pp-slingshot-targetapp": "platformapiserv" }, "additional_properties": {}, "method": "POST" }，而不是选择其子文本节点。

为什么我的XPath表达式不匹配？

1 个答案: