Problems calling SOAP in JAVA program

Question

Hello Experts,
I'm quite new to using SOAP. I just want to ask how to call SOAP in JAVA specifically NetBean. I already created a webservice using the WSDL a created in SAP XI but problem is when I'm trying to invoke the webservice I always get error "401 Unathorized". Is there a way to specify the user name and password when calling the webservice via JAVA code?
Error Message:
Exception in thread "main" com.sun.xml.internal.ws.client.ClientTransportException: The server sent HTTP status code 401: Unauthorized
Sample Code:
public class Main {
@param args the command line arguments
    public static void main(String[] args) throws UnsupportedEncodingException {
        ph.co.amkor.atp.ppmodule.synch.ReqCustomerNoDT Req = new ph.co.amkor.atp.ppmodule.synch.ReqCustomerNoDT();
        Req.setCompanyCode(" ");
        Req.setCustomerNumber("00110");
        RespCustDetailsDT cdwsMI = cdwsMI(Req);
        System.out.println("Customer :" + cdwsMI.getCustomerNumber());
        System.out.println("Name     :" + cdwsMI.getName());
        System.out.println("Street   :" + cdwsMI.getStreet());
        System.out.println("Coutnry  :" + cdwsMI.getCountry());
        System.out.println("City     :" + cdwsMI.getCity());
        System.out.println("MSG Type :" + cdwsMI.getMessageType());
        System.out.println("Message  :" + cdwsMI.getReturnMessage());
    private static RespCustDetailsDT cdwsMI(ph.co.amkor.atp.ppmodule.synch.ReqCustomerNoDT reqCustomerNoMT) {
        ph.co.amkor.atp.ppmodule.synch.CDWSMIService service = new ph.co.amkor.atp.ppmodule.synch.CDWSMIService();
        ph.co.amkor.atp.ppmodule.synch.CDWSMI port = service.getCDWSMIPort();
        return port.cdwsMI(reqCustomerNoMT);
SAP Netweaver Information
Session Information
Application:
Design: Integration Builder
User:
aafri
Logon Language:
Korean
Server:
atpxisd01_XD1_01
Server Node:
server0
Runtime Environment
Java version:
1.4.2_12
Java vendor:
Sun Microsystems Inc.
Version
Service pack:
12
Release:
NW04S_12_REL
Latest change:
29423
Sync time:
${sync.time}
Regards,
Alfred

Answer 1

Hello John Wu,
Points were given.
The code you gave me worked. Thanks! but now I'm having another error below. It seems that it did not returned anything at all cause cdwsMI object is null.
Error:
Exception in thread "main" java.lang.NullPointerException
        at xiwebservice.Main.main(Main.java:31)
Java Result: 1
Line were error happened:
public class Main {
@param args the command line arguments
    public static void main(String[] args) throws UnsupportedEncodingException {
        ph.co.amkor.atp.ppmodule.synch.ReqCustomerNoDT Req = new ph.co.amkor.atp.ppmodule.synch.ReqCustomerNoDT();
        Req.setCompanyCode(" ");
        Req.setCustomerNumber("00110");
        RespCustDetailsDT cdwsMI = cdwsMI(Req);
        +System.out.println("Customer :" + cdwsMI.getCustomerNumber());+
        System.out.println("Name     :" + cdwsMI.getName());
        System.out.println("Street   :" + cdwsMI.getStreet());
        System.out.println("Coutnry  :" + cdwsMI.getCountry());
        System.out.println("City     :" + cdwsMI.getCity());
        System.out.println("MSG Type :" + cdwsMI.getMessageType());
        System.out.println("Message  :" + cdwsMI.getReturnMessage());
    private static RespCustDetailsDT cdwsMI(ph.co.amkor.atp.ppmodule.synch.ReqCustomerNoDT reqCustomerNoMT) {
        ph.co.amkor.atp.ppmodule.synch.CDWSMIService service = new ph.co.amkor.atp.ppmodule.synch.CDWSMIService();
        ph.co.amkor.atp.ppmodule.synch.CDWSMI port = service.getCDWSMIPort();
        BindingProvider prov = (BindingProvider) port;
        prov.getRequestContext().put(BindingProvider.USERNAME_PROPERTY, "aafri");
        prov.getRequestContext().put(BindingProvider.PASSWORD_PROPERTY, "betanew3");
        return port.cdwsMI(reqCustomerNoMT);
Regards,
Alfred