Question

我正在尝试使用SOAP Webservice，它假设返回Document。以下是输出的WSDL。

<wsdl:binding name="NGOImageEnableServiceImpHttpBinding" type="ns:NGOImageEnableServiceImpPortType">
      <http:binding verb="POST"/>
       <wsdl:operation name="downloadDocInFile">
         <http:operation location="NGOImageEnableServiceImp/downloadDocInFile"/>
           <wsdl:input>
             <mime:content type="text/xml" part="downloadDocInFile"/>
           </wsdl:input>
           <wsdl:output>
             <mime:content type="text/xml" part="downloadDocInFile"/>
           </wsdl:output>
    </wsdl:operation>
    </wsdl:binding>

我在web.config中设置的绑定是

<webHttpBinding>

        <binding name="NGOImageEnableServiceImpSoap12Binding" 
            allowCookies="false" bypassProxyOnLocal="false"
            hostNameComparisonMode="StrongWildcard"
            maxBufferSize="2147483647" maxBufferPoolSize="2147483647"
            maxReceivedMessageSize="2147483647"
            transferMode="Streamed">
        </binding>

相同的服务在使用邮递员时提供这样的输出

--MIMEBoundaryurn_uuid_C455EAC131FBC506CE1521635293615
Content-Type: text/xml; charset=UTF-8
Content-Transfer-Encoding: 8bit
Content-ID: 
<0.urn:uuid:C455EAC131FBC506CE1521635293616@apache.org>
    <?xml version='1.0' encoding='UTF-8'?>
    <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
        <soapenv:Body>
            <ns:downloadDocInFileResponse xmlns:ns="http://provider.ws.jts.omni.newgen.com">
                <ns:return>
                    <swa:fileName xmlns:swa="http://provider.ws.jts.omni.newgen.com">
                        <swa:graph>urn:uuid:C455EAC131FBC506CE1521635293614</swa:graph>
                        <swa:message>file download on server successfully</swa:message>
                    </swa:fileName>
                </ns:return>
            </ns:downloadDocInFileResponse>
        </soapenv:Body>
    </soapenv:Envelope>
--MIMEBoundaryurn_uuid_C455EAC131FBC506CE1521635293615
Content-Type: image/jpeg
Content-Transfer-Encoding: binary
Content-ID:
    <urn:uuid:C455EAC131FBC506CE1521635293614>
    ****BINARY CONTENT****

我想在我的c＃代码中使用它。

Answer 1

唉！这是一个SOAP-With-Attachments（SWA）。 WCF不支持此功能。 WCF使用MTOM，但我认为有解决方法：

Answer 2

在完成这项工作后，我在MultipartMemoryStreamProvider

的帮助下找到了解决方案

async static Task<string> readMultipart(HttpWebResponse httpResponse)
        {
            var content = new StreamContent(httpResponse.GetResponseStream());
            content.Headers.Add("Content-Type", httpResponse.ContentType);


            MultipartMemoryStreamProvider multipart = new MultipartMemoryStreamProvider();
            Task.Factory.StartNew(() => multipart = content.ReadAsMultipartAsync().Result,
               CancellationToken.None,
               TaskCreationOptions.LongRunning, // guarantees separate thread
               TaskScheduler.Default)
               .Wait();
            String filename = "";
            String json = await multipart.Contents[0].ReadAsStringAsync();


            string path = HttpContext.Current.Server.MapPath("/test.jpeg");
            byte[] fileData = multipart.Contents[1].ReadAsByteArrayAsync().Result;
            System.IO.File.WriteAllBytes(path, fileData);
            return json;
        }

C＃使用SOAP webservice返回文档

2 个答案: