How to code Java client for a Java Web Service

Question

Hi,
I have a modest knowledge on Java and new to Web Services. I have create a web service using JDeveloper as detailed at the URL http://www.oracle.com/webfolder/technetwork/tutorials/obe/jdev/obe1013jdev/10131/devdepandmanagingws/devdepandmanagingws.htm
In my Web Service, I have one GetSum java class, which has a method addSum(int x, int y) and this method returns the sum of x and y. I am able to successfully test the addSum method in the web service via the end point. However, I would want to use the addSum() method of the web service in a stand alone java class. For this I have used the wsimport utility and the WSDL of the webservice, from which I have got the following java classes.
AddSum.class
AddSumResponse.class
GetSumWS.class
GetSumWS_Service.class
ObjectFactory.class
package-info.class
I have packed all the above class into a jar file.
I have tried many options provided in various websites, but am not able to get this resolved. I am pasting the WSDL for any reference
<?xml version="1.0" encoding="UTF-8" ?>
- <definitions xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:tns="http://FirstWS.com/" name="GetSumWS" targetNamespace="http://FirstWS.com/">
- <types>
- <schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:soap11-enc="http://schemas.xmlsoap.org/soap/encoding/" targetNamespace="http://FirstWS.com/" elementFormDefault="qualified">
<element name="addSum" type="tns:addSum" />
- <complexType name="addSum">
- <sequence>
<element name="x" type="int" />
<element name="y" type="int" />
</sequence>
</complexType>
<element name="addSumResponse" type="tns:addSumResponse" />
- <complexType name="addSumResponse">
- <sequence>
<element name="return" type="int" />
</sequence>
</complexType>
</schema>
</types>
- <message name="GetSumWS_addSum">
<part name="parameters" element="tns:addSum" />
</message>
- <message name="GetSumWS_addSumResponse">
<part name="parameters" element="tns:addSumResponse" />
</message>
- <portType name="GetSumWS">
- <operation name="addSum">
<input message="tns:GetSumWS_addSum" />
<output message="tns:GetSumWS_addSumResponse" />
</operation>
</portType>
- <binding name="GetSumWSSoapHttp" type="tns:GetSumWS">
<soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http" />
- <operation name="addSum">
<soap:operation soapAction="" />
- <input>
<soap:body use="literal" />
</input>
- <output>
<soap:body use="literal" />
</output>
</operation>
</binding>
- <service name="GetSumWS">
- <port name="GetSumWSSoapHttpPort" binding="tns:GetSumWSSoapHttp">
<soap:address location="http://akartha.in.ibm.com:8888/suresh/GetSumWSSoapHttpPort" />
</port>
</service>
</definitions>
Can someone please provide me the code to invoke the addSum() method in a stand alone java class. I would really appreciate the help
Thanks,
Suresh

Answer 1

Hi,
The following is my code to invoke the addSum() web service method.
package com.FirstWS;
import com.firstws.*;
import com.firstws.GetSumWS_Service;
import com.firstws.GetSumWS;
import java.rmi.RemoteException;
public class useWS {
public static void main (String[] args) {
GetSumWS port = null;
try {
int number1 = 10;
int number2 = 20;
port = new GetSumWS_Service().getGetSumWSSoapHttpPort();
System.out.println ("Invoking addNumbers(%d, %d)\n"+ number1 + number2);
int result;
result = port.addSum(number1,number2);
System.out.printf (
"The result of adding %d and %d is %d.\n\n",
number1, number2, result);
} catch (Exception ex) {
System.out.println ("Caught Exception: %s\n"+ex);
But when I compile, I get the following error: "Error(14,20): Service not found in class com.firstws.GetSumWS_Service in class com.FirstWS.useWS"
Please let me know where I have wrong, and would appreciate if you could correct it.
Thanks,
Suresh