Web服务返回“错误”，不确定方法是否有效

Question

我有callWebservice()方法，并且我需要一些Web服务来对其进行测试。我仍然大致了解Web服务，并且此代码来自教程。结果我得到“错误”，我不知道出什么问题了。任何可以用来测试代码的技巧或其他服务都会得到应用。

private static final String NAMESPACE = "https://api.authorize.net/soap/v1/";
    private static final String METHODNAME = "AuthenticateTest";
    private static final String WSDL = "https://apitest.authorize.net/soap/v1/Service.asmx?wsdl";
    private static final String SOAP_ACTION = "https://api.authorize.net/soap/v1/AuthenticateTest";

    private static String TAG = "soap";

    public static String callWebservice() {

String res = "sample string";
        SoapObject request = new SoapObject(NAMESPACE, METHODNAME);
        request.addProperty("name","44vmMAYrhjf");
        request.addProperty("transactionKey","9MDQ7fghjghjh53H48k7e7n");
        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
        envelope.setOutputSoapObject(request);
        HttpTransportSE androidHttpTransport = new HttpTransportSE(WSDL);
        try {
            androidHttpTransport.call(SOAP_ACTION, envelope);
            SoapObject resultsRequestSOAP = (SoapObject) envelope.bodyIn;
            res = resultsRequestSOAP.toString();

        } catch (Exception e) {
            Log.d(TAG, e.getMessage());
        }
return res;
    }

AuthenticateTestResponse{AuthenticateTestResult=anyType{resultCode=Error; messages=anyType{MessagesTypeMessage=anyType{code=E00014; text=Merchant Authentication is required.; }; }; }; }