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This tutorial will take you through the steps required in developing, deploying and testing a Web Service in Apache Geronimo. After completing this tutorial you should be able to understand how to develop simple JAX-WS compliant web services in Apache Geronimo using Eclipse development environment.

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For new users, Web Services can be created in two ways:

• Bottom Up Web Service - creating web services from Java classes.
• Top Down Web Service - creating web services from WSDL document.

This tutorial will help you in creating a Bottom Up Web Service from a Java class which will be exposed as a Servlet to the client applications.

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This tutorial will take you through the following steps:

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Create a Dynamic Web Project to host the Web Service

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• In Project Explorer view, expand jaxws-converter project, right click on Java Resources: src and select New->Package
  
  
• Specify org.apache.geronimo.samples.jaxws as the package name and click Finish
  
  
• Right click on the new package and select New->Interface
• Name the interface as Converter and click Finish
  
  
• Add the following code to the Converter interface Code BlocktitleConverter.javaborderStylesolid package org.apache.geronimo.samples.jaxws; import java.math.BigDecimal; import javax.jws.WebService; @WebService(name="ConverterPortType", targetNamespace = "http://jaxws.samples.geronimo.apache.org") public interface Converter { public BigDecimal dollarToRupees(BigDecimal dollars); public BigDecimal rupeesToEuro(BigDecimal rupees); }
  
  
• In Project Explorer view, right click on the new package and select New->Class
  
  
• Name the class as ConverterService, add org.apache.geronimo.samples.jaxws.Converter as Interface and click Finish
  
  
• Add the following code to the ConverterService class Code BlocktitleConverterService.javaborderStylesolid package org.apache.geronimo.samples.jaxws; import java.math.BigDecimal; import javax.jws.WebService; @WebService(serviceName = "Converter", portName = "ConverterPort", endpointInterface = "org.apache.geronimo.samples.jaxws.Converter", targetNamespace = "http://jaxws.samples.geronimo.apache.org") public class ConverterService implements Converter { private BigDecimal rupeeRate = new BigDecimal("40.58"); private BigDecimal euroRate = new BigDecimal("0.018368"); public BigDecimal dollarToRupees(BigDecimal dollars) { BigDecimal result = dollars.multiply(rupeeRate); return result.setScale(2, BigDecimal.ROUND_UP); } public BigDecimal rupeesToEuro(BigDecimal rupees) { BigDecimal result = rupees.multiply(euroRate); return result.setScale(2, BigDecimal.ROUND_UP); } }

Let us try to understand each annotation:

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• In Project Explorer view, double click on jaxws-converter->WebContent->WEB-INF->web.xml to open it in an editor and add the following <servlet> and <servlet-mapping> elements inside it.

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Deploy the Web Service

• In Servers view, right click on Apache Geronimo Server Runtime and select Add and Remove Projects
  
  
• In the popup dialog, select jaxws-converter project, click Add, and then click Finish
  The Web Service will now be deployed, and Geronimo will create the required .wsdl and other required artifacts.
  
  
• Once the Web Service is deployed on to the server (Server Status says Synchronized), launch a browser and go to the following url:
  http://localhost:8080/jaxws-converter/converter
  You should see a message from Axis2 engine as below:
  
  
  
  
• You can also view the WSDL file generated by Geronimo by going to the following url:
  http://localhost:8080/jaxws-converter/converter?wsdl

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Geronimo processes the annotations in source files and automatically generates the required artifacts to deploy the Web Service.

You can see the Geronimo created files in the directory <INSTALL_DIR>/repository/org/apache/geronimo/samples/jaxws/jaxws-converter/1.0/jaxws-converter-1.0.car/. At this location you can find a new directory which Geronimo created for deploying the web service which contains the WSDL file and other required stubs.

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Geronimo has a built-in plug-in named jaxws-tools which provides tools for generating WSDL and other necessary files used in JAX-WS web services. The plug-in relies on Sun's wsgen and wsimport tools to generate the web services artifacts. Please see wsgen or wsimport documentation for more information.

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Test the Web Service using Eclipse Web Services Explorer

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