我想从下面的XML示例节点中获取UPC值,但是当前的doc.SelectNodes
无法获取该值。我正在使用XmlDocument
处理我的XML。您可以修复我的代码以获取UPC价值吗?我在这里做什么错了?
C#代码:
string responseStr = new StreamReader(responseStream).ReadToEnd();
responseStream.Flush();
responseStream.Close();
XmlDocument doc = new XmlDocument();
doc.LoadXml(responseStr);
if (doc.GetElementsByTagName("Ack").Item(0).InnerText != "Failure")
{
string UPC = doc.SelectNodes("Item").Item(0).SelectNodes("UPC").Item(0).InnerText;
}
XML示例:
<?xml version="1.0" encoding="UTF-8"?>
<GetItemResponse xmlns="urn:ebay:apis:eBLBaseComponents">
<Timestamp>2018-07-28T08:18:10.048Z</Timestamp>
<Ack>Success</Ack>
<Version>1069</Version>
<Build>E1069_CORE_API_18748854_R1</Build>
<Item>
<ProductListingDetails>
<ISBN>Not Applicable</ISBN>
<UPC>853365007036</UPC>
<EAN>0853365007036</EAN>
<BrandMPN>
<Brand>UpCart</Brand>
<MPN>MPCB-1DX</MPN>
</BrandMPN>
<IncludeeBayProductDetails>true</IncludeeBayProductDetails>
</ProductListingDetails>
</Item>
</GetItemResponse>
答案 0 :(得分:0)
您有一个必须用于获取值的名称空间。这是使用xml linq的简单方法:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
namespace ConsoleApplication1
{
class Program
{
const string FILENAME = @"c:\temp\test.xml";
static void Main(string[] args)
{
XDocument doc = XDocument.Load(FILENAME);
XNamespace ns = doc.Root.GetDefaultNamespace();
string UPC = (string)doc.Descendants(ns + "UPC").FirstOrDefault();
}
}
}
如果您为空,请使用此
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
namespace ConsoleApplication1
{
class Program
{
const string FILENAME = @"c:\temp\test.xml";
static void Main(string[] args)
{
XDocument doc = XDocument.Load(FILENAME);
XNamespace ns = doc.Root.GetDefaultNamespace();
var upcs = doc.Descendants(ns + "UPC");
if (upcs != null)
{
string upc = (string)upcs.FirstOrDefault();
}
}
}
}