Java 如何向Soap服务发送数据？

Soap服务

需要以下操作：

<wsdl:operation name="UploadFile">
<soap:operation soapAction="http://abcdotcom/IDocUpload/UploadFile" style="document"/>
<wsdl:input name="FileInfo">
<soap:header message="tns:FileInfo_Headers" part="Name" use="literal"/>
<soap:header message="tns:FileInfo_Headers" part="Length" use="literal"/>
<soap:body use="literal"/>
</wsdl:input>
<wsdl:output name="DownloadRequest">
<soap:body use="literal"/>
</wsdl:output>
</wsdl:operation>

---

但它只是给了我

null

响应。我希望至少出现

错误。请提供帮助。
android中的soap请求示例（方法：FetchUserDetails）

请提供您得到的错误？我只是得到一个空结果。完全没有响应。@Ali\u Waris如果您得到的响应为空，那么您确定您发送的是有效的请求吗？。你调试过你的代码吗？当我计算envelope.getResponse（）时，它每次都显示null。你能指导我如何使用addProperty（）来支持我上面共享的Soap服务所期望的输入类型吗。
request.addProperty("FileInfo", "123"); 

SoapObject request = new SoapObject("http://tempuri.org/", "FetchUserDetails");
request.addProperty("key", value);
        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
        envelope.setOutputSoapObject(request);
        envelope.dotNet = true;
        try {
            HttpTransportSE androidHttpTransport = new HttpTransportSE(ServiceURL);
            androidHttpTransport.call("http://tempuri.org/FetchUserDetails", envelope);
            SoapObject response = (SoapObject) envelope.getResponse();
            int count = response.getPropertyCount();
            if (count > 0) {
             //handel the response
             SoapObject results = (SoapObject) response.getProperty(i);
           }
       }catch (Exception e) {
            Log.e("service", e.getMessage());
      }