如何从XmlRpcClientProtocol.Invoke获取请求XML

using System;
using System.IO;
using System.Net;
using CookComputing.XmlRpc;

public class XmlRpcExample
{
    public static void Main(string[] args)
    {
        // 创建XmlRpcClientProtocol实例
        XmlRpcClientProtocol client = new XmlRpcClientProtocol();
        
        // 设置远程服务器的URL
        client.Url = "http://example.com/xmlrpc";
        
        // 创建XmlRpcRequest对象
        XmlRpcRequest request = new XmlRpcRequest();
        
        // 设置请求的方法名和参数
        request.MethodName = "exampleMethod";
        request.Params = new object[] { "param1", "param2" };
        
        try
        {
            // 调用Invoke方法并获取返回值
            XmlRpcResponse response = client.Invoke(request);
            
            // 获取请求的XML数据流
            Stream requestStream = response.RequestStream;
            
            // 将XML数据流转换为字符串
            StreamReader reader = new StreamReader(requestStream);
            string xml = reader.ReadToEnd();
            
            // 关闭数据流和响应
            reader.Close();
            response.Close();
            
            // 打印请求的XML
            Console.WriteLine(xml);
        }
        catch (WebException ex)
        {
            // 处理异常
            Console.WriteLine("Error: " + ex.Message);
        }
    }
}