Question

我正在尝试使用LINQ to XML来解析我从Google Checkout收到的通知。

回复如下：

<?xml version="1.0" encoding="UTF-8"?>
<authorization-amount-notification xmlns="http://checkout.google.com/schema/2" serial-number="153286076708098-00005-6">
 <authorization-amount currency="USD">60.0</authorization-amount>
 <authorization-expiration-date>2011-07-03T21:27:48.000Z</authorization-expiration-date>
 <avs-response>Y</avs-response>
 <cvn-response>M</cvn-response>
 <timestamp>2011-06-26T21:28:48.741Z</timestamp>
 <google-order-number>153286076708098</google-order-number>
 <order-summary>
   <total-chargeback-amount currency="USD">0.0</total-chargeback-amount>
   <google-order-number>153286076708098</google-order-number>
   <total-charge-amount currency="USD">0.0</total-charge-amount>
   <total-refund-amount currency="USD">0.0</total-refund-amount>
   <risk-information>
     <ip-address>77.42.229.34</ip-address>
     <billing-address>
       <address1>somewhere in Beirut</address1>
       <address2></address2>
       <phone>70892555</phone>
       <email>Technical@fisharwe.com</email>
       <contact-name>Fisharwe User</contact-name>
       <company-name></company-name>
       <fax></fax>
       <country-code>LB</country-code>
       <city>Beirut</city>
       <region></region>
       <postal-code>1000</postal-code>
     </billing-address>
     <avs-response>Y</avs-response>
     <cvn-response>M</cvn-response>
     <eligible-for-protection>true</eligible-for-protection>
     <partial-cc-number>1111</partial-cc-number>
     <buyer-account-age>18</buyer-account-age>
   </risk-information>
   <authorization>
     <authorization-amount currency="USD">60.0</authorization-amount>
     <authorization-expiration-date>2011-07-03T21:27:48.000Z</authorization-expiration-date>
   </authorization>
   <purchase-date>2011-06-26T21:27:48.000Z</purchase-date>
   <archived>false</archived>
   <shopping-cart>
     <items>
       <item>
         <item-name>Credits</item-name>
         <item-description>Description</item-description>
         <unit-price currency="USD">60.0</unit-price>
         <quantity>1</quantity>
       </item>
     </items>
   </shopping-cart>
   <order-adjustment>
     <merchant-codes />
     <total-tax currency="USD">0.0</total-tax>
     <adjustment-total currency="USD">0.0</adjustment-total>
   </order-adjustment>
   <promotions />
   <buyer-id>975104325298289</buyer-id>
   <buyer-marketing-preferences>
     <email-allowed>false</email-allowed>
   </buyer-marketing-preferences>
   <buyer-shipping-address>
     <address1>somewhere in Beirut</address1>
     <address2></address2>
     <phone>70892555</phone>
     <email>Technical@fisharwe.com</email>
     <contact-name>Fisharwe User</contact-name>
     <company-name></company-name>
     <fax></fax>
     <structured-name>
       <first-name>Fisharwe</first-name>
       <last-name>User</last-name>
     </structured-name>
     <country-code>LB</country-code>
     <city>Beirut</city>
     <region></region>
     <postal-code>1000</postal-code>
   </buyer-shipping-address>
   <order-total currency="USD">60.0</order-total>
   <fulfillment-order-state>NEW</fulfillment-order-state>
   <financial-order-state>CHARGEABLE</financial-order-state>
 </order-summary>
</authorization-amount-notification>

这是我正在使用的代码：

        var serverResponse = _checkoutService.Post(data, GoogleCheckoutConstants.ReportsUri);
        var xmlData = XDocument.Parse(serverResponse);
        bool charged = false;
        if(xmlData.Root.Name.Equals("authorization-amount-notification"))
        {

            var amount = (from c in xmlData.Elements()
                          where c.Name.Equals("authorization-amount")
                          select c).First().Value;
            var googleNumber = (from c in xmlData.Elements()
                                where c.Name.Equals("google-order-number")
                                select c).First().Value;
            _checkoutService.ChargeAndShip(googleNumber, amount);
            charged = true;
        }

这是我第一次使用LINQ to XML，所以我不确定我的代码有什么问题。但它甚至没有进入if statement。所以当我用以下内容替换条件时：

if (serverResponse.IndexOf("authorization-amount-notification") > -1)

我最终收到错误，告诉我找不到amount和googleNumber。

有什么建议吗？

Answer 1

您需要将命名空间放入Xml，并且元素是根节点的子元素。

你只是在一个元素之后这样做了Elements（）然后.First（）是没有意义的。只需要做Element（）。

此外，您可以通过将Element +名称空间的名称传递给Element（）方法来匹配元素名称。

var xmlData = XDocument.Parse(xml);

XNamespace ns = "http://checkout.google.com/schema/2";

if (xmlData.Root.Name == ns + "authorization-amount-notification")
{ 
    var amount = 
        xmlData
        .Root
        .Element(ns + "authorization-amount")
        .Value;

    var googleNumber = 
        xmlData
        .Root
        .Element(ns + "google-order-number")
        .Value;  
    _checkoutService.ChargeAndShip(googleNumber, amount);             

    charged = true;
}

Answer 2

怎么样......

if(xmlData.Root.Name.LocalName.Equals("new-order-notification")){
 .... 
}

但是您发布的xml似乎与您使用的代码不匹配..元素不存在

使用LINQ to XML的问题

2 个答案: