無法獲取 XML 中的元素
[英]Unable to get element in XML
問題描述
<?xml version="1.0" encoding="utf-8"?>
<serv:message
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:serv="http://www.webex.com/schemas/2002/06/service" xsi:schemaLocation="http://www.webex.com/schemas/2002/06/service http://www.webex.com/schemas/2002/06/service.xsd">
<header>
<securityContext>
<webExID/>
<password/>
<siteID/>
<partnerID/>
</securityContext>
</header>
<body>
<bodyContent xsi:type="java:com.webex.service.binding.training.CreateTrainingSession"
xmlns="http://www.webex.com/schemas/2002/06/service/training"
xmlns:com="http://www.webex.com/schemas/2002/06/common"
xmlns:sess="http://www.webex.com/schemas/2002/06/session"
xmlns:serv="http://www.webex.com/schemas/2002/06/service"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.webex.com/schemas/2002/06/service/training http://www.webex.com/schemas/2002/06/service/training/trainingsession.xsd">
<sess:accessControl>
<sess:sessionPassword/>
</sess:accessControl>
<sess:schedule></sess:schedule>
<metaData>
<sess:confName/>
<agenda/>
<description/>
<greeting/>
<location/>
</metaData>
<enableOptions>
<chat/>
<poll/>
<audioVideo/>
<fileShare/>
<applicationShare/>
<desktopShare/>
<annotation/>
<fullScreen/>
<voip/>
</enableOptions>
</bodyContent>
</body>
</serv:message>
上面的 XML 是標准的 VILT 創建事件 xml，我需要用適當的數據填充它。
問題是我能夠使用下面的代碼獲取“securityContent”元素，並且節點包含 4 個子元素的總數：
var node = xmlDoc.SelectNodes("/serv:message/header/securityContext/*", GetNameSpace(xmlDoc.NameTable));
但是當我嘗試獲取另一個節點即“metaData”時，我得到 Count 0 並且獲取元素的方式完全相同，除了元素的路徑。
以下是我嘗試過但無法正常工作的示例代碼：
static void Main(string[] args)
{
var xmlPathh = @"C:\Users\SKMEENA\Desktop\VILT.xml";// this holds above xml
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(xmlPathh);
var node = xmlDoc.SelectNodes("/serv:message/header/securityContext/*", GetNameSpace(xmlDoc.NameTable));
var member = xmlDoc.SelectNodes("/serv:message/body/bodyContent/metaData/*", GetNameSpace(xmlDoc.NameTable));
}
static XmlNamespaceManager GetNameSpace(XmlNameTable objNameTable)
{
XmlNamespaceManager objNsManager =new XmlNamespaceManager(objNameTable);
objNsManager.AddNamespace("serv", "http://www.webex.com/schemas/2002/06/service");
objNsManager.AddNamespace("ns1", "http://www.webex.com/schemas/2002/06/service/site");
return objNsManager;
}
任何人都知道上面的代碼有什么問題，我怎樣才能讓它工作？
1 個解決方案
解決方案1
1 已采納 2022-06-16 10:29:50
bodyContent節點有一個默認命名空間，適用於它及其所有子節點。
您需要將其添加到NamespaceManager中，然后在 XPath 中使用它
var member = xmlDoc.SelectSingleNode("/serv:message/body/body:bodyContent/body:metaData", GetNameSpace(xmlDoc.NameTable));
member.OuterXml.Dump();
static XmlNamespaceManager GetNameSpace(XmlNameTable objNameTable)
{
XmlNamespaceManager objNsManager =new XmlNamespaceManager(objNameTable);
objNsManager.AddNamespace("serv", "http://www.webex.com/schemas/2002/06/service");
objNsManager.AddNamespace("ns1", "http://www.webex.com/schemas/2002/06/service/site");
objNsManager.AddNamespace("body", "http://www.webex.com/schemas/2002/06/service/training");
objNsManager.AddNamespace("sess","http://www.webex.com/schemas/2002/06/session");
return objNsManager;
}
無法使用XML從Descendants（）或Element（）獲得價值
[英]Unable to get value from Descendants() or Element() using XML
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