C# Soap调用WebService的实例

实例如下所示：

public class webservicehelper
 {
  /// <summary>
  /// soap协议post方法
  /// </summary>
  /// <param name="uri">webservice地址</param>
  /// <param name="str">传入soap协议格式数据</param>
  /// <returns></returns>
  public static string sendtoreturn(uri _uri, string _str)
  {
   string _returnstr = "";
   //发起请求
   webrequest webrequest = webrequest.create(_uri);
   webrequest.contenttype = "text/xml; charset=utf-8";
   webrequest.method = "post";
   using (stream requeststream = webrequest.getrequeststream())
   {
    byte[] parambytes = encoding.utf8.getbytes(_str);
    requeststream.write(parambytes, 0, parambytes.length);
   }
   //响应
   try
   {
    webresponse webresponse = webrequest.getresponse();
    using (streamreader mystreamreader = new streamreader(webresponse.getresponsestream(), encoding.utf8))
    {
     _returnstr = mystreamreader.readtoend();
    }
   }
   catch (webexception ex)
   {
    _returnstr = new streamreader(ex.response.getresponsestream()).readtoend();
   }
   return _returnstr;
  }
 }

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