我正在尝试使用 XDcoument 创建 xml 文件，但出现以下错误
Name cannot begin with the '<' character, hexadecimal value 0x3C
这是我的代码
XDocument d = new XDocument(
new XElement("<S:Envelope xmlns:S='http://schemas.xmlsoap.org/soap/envelope/'>",
new XElement("<S:Header xmlns:wsse='http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd'>",
new XElement("<ns13:ACASecurityHeader xmlns='urn:us:gov:treasury:irs:ext:aca:air:7.0' xmlns:ns10='urn:us:gov:treasury:irs:msg:acauibusinessheader' xmlns:ns11='http://www.w3.org/2000/09/xmldsig#' xmlns:ns12='http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd' xmlns:ns13='urn:us:gov:treasury:irs:msg:acasecurityheader' xmlns:ns2='urn:us:gov:treasury:irs:common' xmlns:ns3='urn:us:gov:treasury:irs:msg:form1094-1095Btransmitterupstreammessage' xmlns:ns4='urn:us:gov:treasury:irs:msg:form1094-1095Ctransmitterupstreammessage' xmlns:ns5='http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd' xmlns:ns6='urn:us:gov:treasury:irs:msg:form1094-1095BCtransmittermessage' xmlns:ns7='urn:us:gov:treasury:irs:msg:form1094-1095BCtransmitterreqmessage' xmlns:ns8='urn:us:gov:treasury:irs:msg:irsacabulkrequesttransmitter' xmlns:ns9='urn:us:gov:treasury:irs:msg:acabusinessheader'>"),
new XElement("Author", "Moreno, Jordao")
),
new XElement("Book",
new XElement("Title", "Midieval Tools and Implements"),
new XElement("Author", "Gazit, Inbar")
)
),
new XComment("This is another comment."));
有人可以帮我解决这个问题吗？
这是我想使用 XDocument 生成的示例 XML 文件 
最佳答案
有一种比通过 XDocument 手工制作 XML 文档更简单的方法。 ，尽管如果您想那样做，我在下面提供了解释和示例。
首先，简单的方法——将 XML 创建为 string , 并将该字符串传递给 XDocument.Parse ，像这样:
string xmlString = @"<S:Envelope xmlns:S=""http://schemas.xmlsoap.org/soap/envelope/""><S:Header xmlns:wsse=""http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd""><ns13:ACASecurityHeader xmlns:ns10=""urn:us:gov:treasury:irs:msg:acauibusinessheader"" xmlns:ns11=""http://www.w3.org/2000/09/xmldsig#"" xmlns:ns12=""http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"" xmlns:ns13=""urn:us:gov:treasury:irs:msg:acasecurityheader"" xmlns:ns2=""urn:us:gov:treasury:irs:common"" xmlns:ns3=""urn:us:gov:treasury:irs:msg:form1094-1095Btransmitterupstreammessage"" xmlns:ns4=""urn:us:gov:treasury:irs:msg:form1094-1095Ctransmitterupstreammessage"" xmlns:ns5=""http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"" xmlns:ns6=""urn:us:gov:treasury:irs:msg:form1094-1095BCtransmittermessage"" xmlns:ns7=""urn:us:gov:treasury:irs:msg:form1094-1095BCtransmitterreqmessage"" xmlns:ns8=""urn:us:gov:treasury:irs:msg:irsacabulkrequesttransmitter"" xmlns:ns9=""urn:us:gov:treasury:irs:msg:acabusinessheader""><Author>Moreno, Jordao</Author><Book><Title>Midieval Tools and Implement</Title><Author>Gazit, Inbar</Author></Book></ns13:ACASecurityHeader><!--This is another comment--></S:Header></S:Envelope>";
XDocument xDoc2 = XDocument.Parse(xmlString);
xDoc2将包含您希望发送的 XML。
如果您想长期这样做，那么您发布的代码有几个问题。
首先，您没有正确处理 namespace (xmlns: 属性)。其次，您包括 <和 >在调用 XElement ，并且您不需要这样做 - 该方法会处理这两个符号。
您需要做的是设置命名空间，然后将它们添加到适当的元素并为它们创建属性。
示例代码与发布的代码段不匹配，因此我处理了您的示例代码以向您展示如何着手手工制作 XML。
XNamespace sNS = XNamespace.Get("http://schemas.xmlsoap.org/soap/envelope/");
XNamespace wsseNS = XNamespace.Get("http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd");
XNamespace xmlnsNS = XNamespace.Get("urn:us:gov:treasury:irs:ext:aca:air:7.0");
XNamespace ns10NS = XNamespace.Get("urn:us:gov:treasury:irs:msg:acauibusinessheader");
XNamespace ns11NS = XNamespace.Get("http://www.w3.org/2000/09/xmldsig#");
XNamespace ns12NS = XNamespace.Get("http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd");
XNamespace ns13NS = XNamespace.Get("urn:us:gov:treasury:irs:msg:acasecurityheader");
XNamespace ns2NS = XNamespace.Get("xmlns: ns2 = 'urn:us:gov:treasury:irs:common");
XNamespace ns3NS = XNamespace.Get("urn:us:gov:treasury:irs:msg:form1094-1095Btransmitterupstreammessage");
XNamespace ns4NS = XNamespace.Get("urn:us:gov:treasury:irs:msg:form1094-1095Ctransmitterupstreammessage");
XNamespace ns5NS = XNamespace.Get("http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd");
XNamespace ns6NS = XNamespace.Get("urn:us:gov:treasury:irs:msg:form1094-1095BCtransmittermessage");
XNamespace ns7NS = XNamespace.Get("urn:us:gov:treasury:irs:msg:form1094-1095BCtransmitterreqmessage");
XNamespace ns8NS = XNamespace.Get("urn:us:gov:treasury:irs:msg:irsacabulkrequesttransmitter");
XNamespace ns9NS = XNamespace.Get("urn:us:gov:treasury:irs:msg:acabusinessheader");
XDocument xDoc = new XDocument(new XElement(sNS + "Envelope", new XAttribute(XNamespace.Xmlns + "S", sNS),
new XElement(sNS + "Header", new XAttribute(XNamespace.Xmlns + "wsse", wsseNS),
new XElement(ns13NS + "ACASecurityHeader", new XAttribute(XNamespace.Xmlns + "ns10", ns10NS),
new XAttribute(XNamespace.Xmlns + "ns11", ns11NS),
new XAttribute(XNamespace.Xmlns + "ns12", ns12NS),
new XAttribute(XNamespace.Xmlns + "ns13", ns13NS),
new XAttribute(XNamespace.Xmlns + "ns2", ns2NS),
new XAttribute(XNamespace.Xmlns + "ns3", ns3NS),
new XAttribute(XNamespace.Xmlns + "ns4", ns4NS),
new XAttribute(XNamespace.Xmlns + "ns5", ns5NS),
new XAttribute(XNamespace.Xmlns + "ns6", ns6NS),
new XAttribute(XNamespace.Xmlns + "ns7", ns7NS),
new XAttribute(XNamespace.Xmlns + "ns8", ns8NS),
new XAttribute(XNamespace.Xmlns + "ns9", ns9NS
new XAttribute("xmlns", xmlnsNS),
new XElement("Author", "Moreno, Jordao"),
new XElement("Book",
new XElement("Title", "Midieval Tools and Implement"),
new XElement("Author", "Gazit, Inbar"))
),
new XComment("This is another comment")
))
);
上面代码做的第一件事是通过 XNamespace 设置所有命名空间。 .
接下来，构建 XML 文档。各个元素是通过 XElement 创建的，带有各种命名空间前缀(即 new XElement(sNS + "Envelope", ，以及通过 XAttribute 添加的其他命名空间。
嵌套可能会很棘手，所以你必须非常小心地这样做。上面的代码将生成以下 XML:
<?xml version="1.0"?>
<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">
<S:Header xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
<ns13:ACASecurityHeader xmlns="urn:us:gov:treasury:irs:ext:aca:air:7.0"
xmlns:ns9="urn:us:gov:treasury:irs:msg:acabusinessheader"
xmlns:ns8="urn:us:gov:treasury:irs:msg:irsacabulkrequesttransmitter"
xmlns:ns7="urn:us:gov:treasury:irs:msg:form1094-1095BCtransmitterreqmessage"
xmlns:ns6="urn:us:gov:treasury:irs:msg:form1094-1095BCtransmittermessage"
xmlns:ns5="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"
xmlns:ns4="urn:us:gov:treasury:irs:msg:form1094-1095Ctransmitterupstreammessage"
xmlns:ns3="urn:us:gov:treasury:irs:msg:form1094-1095Btransmitterupstreammessage" xmlns:ns2="urn:us:gov:treasury:irs:common"
xmlns:ns13="urn:us:gov:treasury:irs:msg:acasecurityheader"
xmlns:ns12="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"
xmlns:ns11="http://www.w3.org/2000/09/xmldsig#"
xmlns:ns10="urn:us:gov:treasury:irs:msg:acauibusinessheader">
<Author>Moreno, Jordao</Author>
<Book>
<Title>Midieval Tools and Implement</Title>
<Author>Gazit, Inbar</Author>
</Book>
</ns13:ACASecurityHeader>
<!--This is another comment-->
</S:Header>
</S:Envelope>
关于c# - XDocument 错误名称不能以 '<' 字符开头，十六进制值 0x3C，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35146010/