C#使用SOAP获取webservice实例解析

本文主要参考如下两个链接，并整理：

Java使用SOAP: /article/4621095.html

C# send soap and get response: http://stackoverflow.com/questions/4791794/client-to-send-soap-request-and-received-response

1.webservice提供方：http://www.webxml.com.cn/zh_cn/index.aspx

2.下面我们以“获得腾讯QQ在线状态”为例。网页介绍参考：http://www.webxml.com.cn/webservices/qqOnlineWebService.asmx?op=qqCheckOnline

代码如下：

using System.IO;
using System.Xml;
using System.Net;

namespace ConsoleApplicationTest2
{
class SOAPTest
{
public static void CallWebService(string qq)
{
var _url = "http://www.webxml.com.cn/webservices/qqOnlineWebService.asmx";
var _action = "http://WebXml.com.cn/qqCheckOnline";

XmlDocument soapEnvelopeXml = CreateSoapEnvelope(qq);
HttpWebRequest webRequest = CreateWebRequest(_url, _action);
InsertSoapEnvelopeIntoWebRequest(soapEnvelopeXml, webRequest);

// begin async call to web request.
IAsyncResult asyncResult = webRequest.BeginGetResponse(null, null);

// suspend this thread until call is complete. You might want to
// do something usefull here like update your UI.
asyncResult.AsyncWaitHandle.WaitOne();

// get the response from the completed web request.
string soapResult;
using (WebResponse webResponse = webRequest.EndGetResponse(asyncResult))
{
using (StreamReader rd = new StreamReader(webResponse.GetResponseStream()))
{
soapResult = rd.ReadToEnd();
}
Console.WriteLine(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(string qq)
{
XmlDocument soapEnvelop = new XmlDocument();
string soapXml = @"<SOAP-ENV:Envelope xmlns:SOAP-ENV=""http://schemas.xmlsoap.org/soap/envelope/"" xmlns:xsi=""http://www.w3.org/1999/XMLSchema-instance"" xmlns:xsd=""http://www.w3.org/1999/XMLSchema""><SOAP-ENV:Body><qqCheckOnline xmlns=""http://WebXml.com.cn/""><qqCode>qq_Code</qqCode></qqCheckOnline></SOAP-ENV:Body></SOAP-ENV:Envelope>";
soapEnvelop.LoadXml(soapXml.Replace("qq_Code",qq));
return soapEnvelop;
}

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

static void test()
{
string[] qq = { "49", "4941", "4949252", "494925223", "4949252242", "48492522502", "49492522" };
foreach (var qc in qq)
SOAPTest.CallWebService(qc);
Console.ReadKey();
}
}
}

如下图即可以得到运行结果：