c#动态调用Webservice的两种方法实例

方法一：

hashtable ht = new hashtable();
            ht.add("a", "testhelloworld");
            xmldocument xx = webserviceshelper.querysoapwebservice("//www.jb51.net/elab_mgmt/workflowschemetaskserivce.asmx", "atesting", ht);
            string ss = xx.outerxml;

/// <summary>
        /// 通用webservice调用(soap),参数pars为string类型的参数名、参数值
        /// </summary>
        public static xmldocument querysoapwebservice(string url, string methodname, hashtable pars)
        {
            if (_xmlnamespaces.containskey(url))
            {
                return querysoapwebservice(url, methodname, pars, _xmlnamespaces[url].tostring());
            }
            else
            {
                return querysoapwebservice(url, methodname, pars, getnamespace(url));
            }
        }

private static xmldocument querysoapwebservice(string url, string methodname, hashtable pars, string xmlns)
        {
            _xmlnamespaces[url] = 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);
            xmldocument doc = new xmldocument(), doc2 = new xmldocument();
            doc = readxmlresponse(request.getresponse());

            xmlnamespacemanager mgr = new xmlnamespacemanager(doc.nametable);
            mgr.addnamespace("soap", "http://schemas.xmlsoap.org/soap/envelope/");
            string retxml = doc.selectsinglenode("//soap:body/*/*", mgr).innerxml;
            doc2.loadxml("<root>" + retxml + "</root>");
            adddelaration(doc2);
            return doc2;
        }

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;
        }

方法二：

通过soapui直接取url

string postdata2="<soapenv:envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:tem=\"http://tempuri.org/\"><soapenv:header/><soapenv:body><tem:atesting><!--optional:--><tem:a>?</tem:a></tem:atesting></soapenv:body></soapenv:envelope>";
            httphelper.getresponseformurlasync("http://www.xxx.com/testingservices.asmx?wsdl", postdata2, "text/xml", true, new asynccallback(responsecallback));

}
        static void responsecallback(iasyncresult ar)
        {
            httpwebrequest req = ar.asyncstate as httpwebrequest;
            if (req == null)
                return;
            try
            {
                httpwebresponse response = req.endgetresponse(ar) as httpwebresponse;
                if (response.statuscode != httpstatuscode.ok)
                {
                    response.close();
                    loghelper.error("定时任务", "异步执行失败," + req.requesturi.tostring() + "\r\nresponse状态代码为\r\n" + response.statuscode.tostring());
                    return;
                }
                stream responsestream = response.getresponsestream();
                streamreader reader = new streamreader(responsestream, encoding.utf8);
                string responsestr = reader.readtoend();
                responsestream.close();
                loghelper.warn("定时任务", req.requesturi.tostring() + "\r\n" + responsestr);
            }
            catch (exception e)
            {
                loghelper.fatal("定时任务", req.requesturi.tostring() + "\r\n执行失败", e);
            }
        }