我正在使用ksoap2-android
库从Android应用程序调用java jax-ws
web服务。
问题是,虽然我请求的方法实际上是正确调用的,但它的所有参数(都是简单的字符串)总是null
!
下面是我的代码:
虽然webservice:jax - ws的
@WebService(targetNamespace="webservices.delta.elia.unipd")
public class DeltaUploadService {
@WebMethod(operationName = "uploadLogData")
public boolean uploadLogData(String deviceID, String experimentID, String filename, String data){
System.out.println("Incoming data from device: " + deviceID + ", Experiment ID: " + experimentID);
//All the parameters here are NULL!
}
}
Android代码:public static boolean uploadLog(String deviceID, String experimentID, String filename, String serverUrl, byte[] data){
String NAMESPACE = "webservices.delta.elia.unipd";
String SOAP_ACTION = "webservices.delta.elia.unipd/uploadLogData";
// Create request
SoapObject request = new SoapObject(NAMESPACE, "uploadLogData");
//add parameters
request.addProperty("deviceID", deviceID);
request.addProperty("experimentID", experimentID);
request.addProperty("filename", filename);
request.addProperty("data", Base64.encodeToString(data, Base64.DEFAULT));
// Create envelope
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
// Set output SOAP object
envelope.setOutputSoapObject(request);
// Create HTTP call object
HttpTransportSE androidHttpTransport = new HttpTransportSE(serverUrl);
try {
// Invoke web service
androidHttpTransport.call(SOAP_ACTION, envelope);
// Get the response
SoapPrimitive response = (SoapPrimitive) envelope.getResponse();
return Boolean.parseBoolean(response.toString());
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
我做错了什么?
PS:我用SoapUI工具测试了Java web服务,它工作正常,所以问题一定是在ksoap2库或我的Android代码中。注意:我已经读过其他答案,如ksoap2 -请求参数设置为空,KSoap调用。net ASMX服务传递空参数,但他们没有帮助。
嗯,经过几个小时的更改名称空间/方法名称/注释等,我通过比较soapUI生成的请求和到达我的服务器的请求发现了问题。
问题出在属性名上。将它们设置为与jax-ws webservice中的参数名相同的名称无法工作,除非您使用正确的注释指定这些名称(我在web上的任何示例中都没有发现,奇怪的是)
下面是使它工作的正确web服务代码:
@WebService(targetNamespace="webservices.delta.elia.unipd")
public class DeltaUploadService {
@WebMethod(operationName = "uploadLogData")
public boolean uploadLogData(@WebParam(name = "deviceID") String deviceID, @WebParam(name = "experimentID") String experimentID,
@WebParam(name = "filename") String filename, @WebParam(name = "data") String data){
System.out.println("Incoming data from device: " + deviceID + ", Experiment ID: " + experimentID);
//All the parameters now work!
}
}