结果为空。无法使用Ksoap2- android从SOAP api获取响应(使用Kotlin)

import org.ksoap2.SoapEnvelope
import org.ksoap2.serialization.SoapObject
import org.ksoap2.serialization.SoapSerializationEnvelope
import org.ksoap2.transport.HttpTransportSE

fun callSoapService() {
    val NAMESPACE = "http://example.com/namespace"
    val METHOD_NAME = "MethodName"
    val SOAP_ACTION = "$NAMESPACE/$METHOD_NAME"
    val URL = "http://example.com/service"

    val request = SoapObject(NAMESPACE, METHOD_NAME)
    // 添加参数
    request.addProperty("paramName", "paramValue")

    val envelope = SoapSerializationEnvelope(SoapEnvelope.VER11)
    envelope.setOutputSoapObject(request)
    envelope.dotNet = true // 如果服务端是.NET，设置为true

    val androidHttpTransport = HttpTransportSE(URL)

    try {
        androidHttpTransport.call(SOAP_ACTION, envelope)
        val response = envelope.response as SoapObject?

        if (response != null) {
            // 处理响应
            val result = response.getPropertyAsString("Result")
            println("Response: $result")
        } else {
            println("Response is null")
        }
    } catch (e: Exception) {
        e.printStackTrace()
    }
}