C# .NET 中通过 HTTP post 的 SOAP 对象

Question

我正在尝试在 C# .NET 中编写 SOAP 消息（包括标头）以使用 HTTP post 发送到 URL。我想要将其发送到的 URL 不是 Web 服务，它只是接收 SOAP 消息以最终从中提取信息。关于如何做到这一点有什么想法吗？

Answer 1

首先您需要创建一个有效的 XML。我使用 Linq to XML 来实现此目的，如下所示：

XNamespace soapenv = "http://schemas.xmlsoap.org/soap/envelope/";
var document = new XDocument(
               new XDeclaration("1.0", "utf-8", String.Empty),
               new XElement(soapenv + "Envelope",
                   new XAttribute(XNamespace.Xmlns + "soapenv", soapenv),
                   new XElement(soapenv + "Header",
                       new XElement(soapenv + "AnyOptionalHeader",
                           new XAttribute("AnyOptionalAttribute", "false"),
                       )
                   ),
                   new XElement(soapenv + "Body",
                       new XElement(soapenv + "MyMethodName",
                            new XAttribute("AnyAttributeOrElement", "Whatever")
                       )
                   )
                );

然后我使用（编辑：在此处添加 XDocument.ToString() 来发送它。）

            var req = WebRequest.Create(uri);
            req.Timeout = 300000;  //timeout
            req.Method = "POST";
            req.ContentType = "text/xml;charset=UTF-8";

            using (var writer = new StreamWriter(req.GetRequestStream()))
            {
                writer.WriteLine(document.ToString());
                writer.Close();
            }

如果我必须阅读一些内容回应，我愿意（这是上述代码的后续）：

            using (var rsp = req.GetResponse())
            {
                req.GetRequestStream().Close();
                if (rsp != null)
                {
                    using (var answerReader = 
                                new StreamReader(rsp.GetResponseStream()))
                    {
                        var readString = answerReader.ReadToEnd();
                        //do whatever you want with it
                    }
                }
            }

Answer 2

您上面的代码缺少括号并有一个额外的逗号，我在这里修复了它：

XNamespace soapenv = "http://schemas.xmlsoap.org/soap/envelope/"; 
var document = new XDocument( 
    new XDeclaration("1.0", "utf-8", String.Empty), 
    new XElement(soapenv + "Envelope", 
        new XAttribute(XNamespace.Xmlns + "soapenv", soapenv), 
        new XElement(soapenv + "Header", 
            new XElement(soapenv + "AnyOptionalHeader", 
                new XAttribute("AnyOptionalAttribute", "false")
            ) 
        ), 
        new XElement(soapenv + "Body", 
            new XElement(soapenv + "MyMethodName", 
                new XAttribute("AnyAttributeOrElement", "Whatever") 
            ) 
        ) 
    )
);