获取一个XML元素的限定名,它';s具有C#的子节点
本文关键字:子节点 具有 一个 元素 XML 获取 | 更新日期: 2023-09-27 18:26:50
编辑:
我试图在这里完成三件事:获取XmlNode Query、获取XmlNode QueryId和获取一个:schemaLocation的值,但解析后它们最终为null。如果我从XML中删除限定名,那么C#位就可以正常工作。我应该如何重写代码?
XML:
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:loc="localhost">
<soapenv:Header/>
<soapenv:Body>
<loc:Service>
<!--Optional:-->
<loc:input>?</loc:input>
<Query a:schemaLocation="http://www.xyz.com/xml.xsd" xmlns:payload="http://www.xyz.com" xmlns:a="http://www.w3.org/2001/XMLSchema-instance" xmlns="loc4">
<QueryId>Data</QueryId>
</Query>
</loc:Service>
</soapenv:Body>
</soapenv:Envelope>
C#:
private NamespaceManager nsmgr;
private XmlDocument doc = new XmlDocument();
private Stream receiveStream = new Stream(HttpContext.Current.Request.InputStream);
private XmlNode Query, QueryId;
using (this.receiveStream){
using (StreamReader readStream = new StreamReader(this.receiveStream, Encoding.UTF8)){
doc.Load(readStream);
this.nsmgr = new XmlNamespaceManager(this.doc.NameTable);
this.nsmgr.AddNamespace("soapenv", "http://schemas.xmlsoap.org/soap/envelope/");
this.nsmgr.AddNamespace("loc", "http://localhost");
this.nsmgr.AddNamespace("schemaLocation", "http://www.xyz.com/xml.xsd");
this.nsmgr.AddNamespace("payload", "http://www.xyz.com");
this.nsmgr.AddNamespace("a", "http://www.w3.org/2001/XMLSchema-instance");
this.nsmgr.AddNamespace("x", this.doc.DocumentElement.NamespaceURI);
this.Query = doc.SelectSingleNode("//x:Query", this.nsmgr);
this.QueryId= doc.SelectSingleNode("//x:QueryId", this.nsmgr);
}
}
给你。。。
XmlDocument xDoc = new XmlDocument();
xDoc.Load("Query.xml");
XmlNamespaceManager xnm = new XmlNamespaceManager(xDoc.NameTable);
xnm.AddNamespace("schemaLocation", "loc");
xnm.AddNamespace("payload", "loc2");
xnm.AddNamespace("a", "http://www.w3.org/2001/XMLSchema-instance");
xnm.AddNamespace("x", xDoc.DocumentElement.NamespaceURI);
查询的内部文本:
xDoc.SelectNodes("//x:Query", xnm)[0].InnerText
QueryId的内部文本:
xDoc.SelectNodes("//x:QueryId", xnm)[0].InnerText
a:schemaLocation属性:
string namespaceURI = xnm.GetNamespacesInScope(XmlNamespaceScope.Local).FirstOrDefault(el => string.Equals(el.Key, "a")).Value;
var x = xDoc.DocumentElement.Attributes["schemaLocation", namespaceURI].Value;
下面是我提出的一个简单解决方案:
删除了以下行:
this.nsmgr.AddNamespace("soapenv", "http://schemas.xmlsoap.org/soap/envelope/");
this.nsmgr.AddNamespace("loc", "http://localhost");
this.nsmgr.AddNamespace("schemaLocation", "http://www.xyz.com/xml.xsd");
this.nsmgr.AddNamespace("payload", "http://www.xyz.com");
修改:
this.nsmgr.AddNamespace("x", "loc4");
按照普拉什的建议,找到一个:schemaLocation的值是可行的。