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How to Create a C# Windows Service to Send SOAP Requests and Receive Responses?

Susan SarandonOriginal: 2025-01-24 06:41:08640browse

C# Windows Service: Send SOAP request and receive response

This article describes how to create a C# Windows service to send SOAP requests and receive responses. This method utilizes the native functions of C#, which is efficient and convenient.

The following code provides an alternative:

<code class="language-csharp">using System.Xml;
using System.Net;
using System.IO;

public static void CallWebService()
{
    string url = "http://xxxxxxxxx/Service1.asmx";
    string action = "http://xxxxxxxx/Service1.asmx?op=HelloWorld";

    XmlDocument soapEnvelopeXml = CreateSoapEnvelope();
    HttpWebRequest webRequest = CreateWebRequest(url, action);
    InsertSoapEnvelopeIntoWebRequest(soapEnvelopeXml, webRequest);

    // 开始异步调用Web请求
    IAsyncResult asyncResult = webRequest.BeginGetResponse(null, null);

    // 暂停线程，直到调用完成
    asyncResult.AsyncWaitHandle.WaitOne();

    string soapResult;
    using (WebResponse webResponse = webRequest.EndGetResponse(asyncResult))
    {
        using (StreamReader rd = new StreamReader(webResponse.GetResponseStream()))
        {
            soapResult = rd.ReadToEnd();
        }
        Console.Write(soapResult);
    }
}

private static HttpWebRequest CreateWebRequest(string url, string action)
{
    HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(url);
    webRequest.Headers.Add("SOAPAction", action);
    webRequest.ContentType = "text/xml;charset=\"utf-8\"";
    webRequest.Accept = "text/xml";
    webRequest.Method = "POST";
    return webRequest;
}

private static XmlDocument CreateSoapEnvelope()
{
    XmlDocument soapEnvelopeDocument = new XmlDocument();
    soapEnvelopeDocument.LoadXml(@"<envelope http:="" xmlns:soap-env="" xmlns:xsd="" xmlns:xsi=""><body><helloworld http:="" soap-env:encoding xmlns=""><int1 xsd:integer="" xsi:type=""></int1></helloworld></body>
    </envelope>");
    return soapEnvelopeDocument;
}

private static void InsertSoapEnvelopeIntoWebRequest(XmlDocument soapEnvelopeXml, HttpWebRequest webRequest)
{
    using (Stream stream = webRequest.GetRequestStream())
    {
        soapEnvelopeXml.Save(stream);
    }
}</code>

This method provides a flexible and efficient way to send SOAP requests and receive responses without relying on external libraries.

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