无返回值，soap方式调用WebService

using System;

using System.Web;

using System.Xml;

using System.Collections;

using System.Net;

using System.Text;

using System.IO;

using System.Xml.Serialization;

namespace XTask.Common.Net

{

/// <summary>

/// 利用WebRequest/WebResponse进行WebService调用的类

/// </summary>

public class WebSvcCaller

{

//试试配置文件中加以下内容

//<webServices>

// <protocols>

// <add name="HttpGet"/>

// <add name="HttpPost"/>

// </protocols>

//</webServices>

private static Hashtable _xmlNamespaces = new Hashtable();//缓存xmlNamespace，避免重复调用GetNamespace

/// <summary>

/// 调用webService

/// </summary>

/// <param name="URL">格式如：http://localhost/emailws/emailService.asmx/HelloWorld</param>

public static void QuerySoapWebServiceNoReturn(String URL)

{

string MethodName = URL.Substring(URL.LastIndexOf("/")+1);

string realUrl = URL.Substring(0, URL.LastIndexOf("/"));

if (_xmlNamespaces.ContainsKey(URL))

{

QuerySoapWebService(realUrl, MethodName, null, _xmlNamespaces[realUrl].ToString());

}

else

{

QuerySoapWebService(realUrl, MethodName, null, GetNamespace(realUrl));

}

}

/// <summary>

/// 有返回值的方法。

/// </summary>

/// <param name="URL"></param>

/// <param name="MethodName"></param>

/// <param name="Pars"></param>

/// <param name="XmlNs"></param>

/// <returns></returns>

private static void QuerySoapWebService(String URL, String MethodName, Hashtable Pars, string XmlNs)

{

_xmlNamespaces
request.ContentType = "text/xml; charset=utf-8";

request.Headers.Add("SOAPAction", "\"" + XmlNs + (XmlNs.EndsWith("/") ? "" : "/") + MethodName + "\"");

SetWebRequest(request);

byte[] data = EncodeParsToSoap(Pars, XmlNs, MethodName);

WriteRequestData(request, data);

request.GetResponse();

}

/// <summary>

/// 获取命名空间

/// </summary>

/// <param name="URL"></param>

/// <returns></returns>

private static string GetNamespace(String URL)

{

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(URL + "?WSDL");

SetWebRequest(request);

WebResponse response = request.GetResponse();

StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);

XmlDocument doc = new XmlDocument();

doc.LoadXml(sr.ReadToEnd());

sr.Close();

return doc.SelectSingleNode("//@targetNamespace").Value;

}

/// <summary>

/// 转换成soap包

/// </summary>

/// <param name="Pars">参数</param>

/// <param name="XmlNs">命名空间</param>

/// <param name="MethodName">方法名</param>

/// <returns>返回值</returns>

private static byte[] EncodeParsToSoap(Hashtable Pars, String XmlNs, String MethodName)

{

XmlDocument doc = new XmlDocument();

doc.LoadXml("<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" target=_blank> = XmlNs;//加入缓存，提高效率

HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(URL);

request.Method = "POST";

request.ContentType = "text/xml; charset=utf-8";

request.Headers.Add("SOAPAction", "\"" + XmlNs + (XmlNs.EndsWith("/") ? "" : "/") + MethodName + "\"");

SetWebRequest(request);

byte[] data = EncodeParsToSoap(Pars, XmlNs, MethodName);

WriteRequestData(request, data);

request.GetResponse();

}

/// <summary>

/// 获取命名空间

/// </summary>

/// <param name="URL"></param>

/// <returns></returns>

private static string GetNamespace(String URL)

{

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(URL + "?WSDL");

SetWebRequest(request);

WebResponse response = request.GetResponse();

StreamReader sr = new StreamReader(response.GetResponseStream(), Encoding.UTF8);

XmlDocument doc = new XmlDocument();

doc.LoadXml(sr.ReadToEnd());

sr.Close();

return doc.SelectSingleNode("//@targetNamespace").Value;

}

/// <summary>

/// 转换成soap包

/// </summary>

/// <param name="Pars">参数</param>

/// <param name="XmlNs">命名空间</param>

/// <param name="MethodName">方法名</param>

/// <returns>返回值</returns>

private static byte[] EncodeParsToSoap(Hashtable Pars, String XmlNs, String MethodName)

{

XmlDocument doc = new XmlDocument();

doc.LoadXml("<soap:Envelope xmlns:xsi=\"[url=http://www.w3.org/2001/XMLSchema-instance/]http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"[url=http://www.w3.org/2001/XMLSchema/]http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"></soap:Envelope>");

AddDelaration(doc);

XmlElement soapBody = doc.CreateElement("soap", "Body", "http://schemas.xmlsoap.org/soap/envelope/");

XmlElement soapMethod = doc.CreateElement(MethodName);

soapMethod.SetAttribute("xmlns", XmlNs);

if (Pars != null && Pars.Count > 0)

{

foreach (string k in Pars.Keys)

{

XmlElement soapPar = doc.CreateElement(k);

soapPar.InnerXml = ObjectToSoapXml(Pars[k]);

soapMethod.AppendChild(soapPar);

}

}

soapBody.AppendChild(soapMethod);

doc.DocumentElement.AppendChild(soapBody);

return Encoding.UTF8.GetBytes(doc.OuterXml);

}

/// <summary>

/// 转换object成xml

/// </summary>

/// <param name="o"></param>

/// <returns></returns>

private static string ObjectToSoapXml(object o)

{

XmlSerializer mySerializer = new XmlSerializer(o.GetType());

MemoryStream ms = new MemoryStream();

mySerializer.Serialize(ms, o);

XmlDocument doc = new XmlDocument();

doc.LoadXml(Encoding.UTF8.GetString(ms.ToArray()));

if (doc.DocumentElement != null)

{

return doc.DocumentElement.InnerXml;

}

else

{

return o.ToString();

}

}

/// <summary>

/// 设置请求参数

/// </summary>

/// <param name="request"></param>

private static void SetWebRequest(HttpWebRequest request)

{

request.Credentials = CredentialCache.DefaultCredentials;

request.Timeout = 10000;

}

/// <summary>

/// 往网络流写数据

/// </summary>

/// <param name="request"></param>

/// <param name="data"></param>

private static void WriteRequestData(HttpWebRequest request, byte[] data)

{

request.ContentLength = data.Length;

Stream writer = request.GetRequestStream();

writer.Write(data, 0, data.Length);

writer.Close();

}

/// <summary>

/// xml添加head

/// </summary>

/// <param name="doc"></param>

private static void AddDelaration(XmlDocument doc)

{

XmlDeclaration decl = doc.CreateXmlDeclaration("1.0", "utf-8", null);

doc.InsertBefore(decl, doc.DocumentElement);

}

}

}