C#生成不带XML根元素的SOAP信封

using System;
using System.IO;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.Xml;

namespace SOAPEnvelopeExample
{
    class Program
    {
        static void Main(string[] args)
        {
            // 创建一个SOAP消息
            Message message = Message.CreateMessage(MessageVersion.Soap11, "Action", "Body Content");

            // 移除SOAP消息的根元素
            message.Headers.Clear();
            message.Headers.To = new Uri("http://example.com/endpoint");

            // 将SOAP消息转换为XML格式
            XmlDocument xmlDoc = new XmlDocument();
            using (MemoryStream stream = new MemoryStream())
            {
                XmlWriter writer = XmlWriter.Create(stream);
                message.WriteMessage(writer);
                writer.Flush();
                stream.Position = 0;
                xmlDoc.Load(stream);
            }

            // 获取SOAP信封的内容
            XmlNode envelopeNode = xmlDoc.SelectSingleNode("/*[local-name()='Envelope']");

            // 输出SOAP信封的内容
            Console.WriteLine(envelopeNode.OuterXml);
        }
    }
}