Java Webservices
- 1. Java/J2ee Programming Training Java Web Services
- 2. Page 2Classification: Restricted Agenda • Intoduction to WebServices • Interoperability • XML • UDDI – Universal discovery description and Integration • Conversion—java to soap message • Writing a web service • Contract vs service • WSDL generation
- 3. Page 3Classification: Restricted WEB SERVICES SOAP JAX-JS REST JAS-RS Introduction to Web Services
- 4. Page 4Classification: Restricted Web Services • available over internet • consumed by application
- 5. Page 5Classification: Restricted Interoperability JAVA WEB SERVICE .NET WEB SERVICE C++
- 6. Page 6Classification: Restricted Web Services getProducts() MVC getProducts.jar
- 7. Page 7Classification: Restricted Terms webservice Implinterfaceconsumer webservice Implinterfaceconsumer
- 8. Page 8Classification: Restricted XML • WSdl-web service definition language • contract definition of webservice • shared with consumers ---java interface in xml format.
- 9. Page 9Classification: Restricted UDDI – Universal discovery description and Integration • locates web service. • can query the directory to fetch the service. CLIENTS UDDI service
- 10. Page 10Classification: Restricted SOAP: simple access object protocol JAVA WSDL WEBSERVICE JAVA XML ====== SOAP WEBSERVICE SOAP: simple access object protocol
- 11. Page 11Classification: Restricted Conversion—Java to SOAP message • service end point( SEI)—acts as an interface to service end point • converts java code to soap message SEI WEB SERVICE SOAP ===== XML
- 12. Page 12Classification: Restricted Writing a web service @Webservice class BookTickets { public List<String> getShowNames() { List<String> shows = new ArrayList<>(); shows.add( “abcd”); shows.add(“ppp”); show.add(“qqq”); } }
- 13. Page 13Classification: Restricted Contract vs Service • Contract ---interface • service – business logic • most of the time we write the interface
- 14. Page 14Classification: Restricted WSDL Generation WSDL WEB_SE RVICE
- 15. Page 15Classification: Restricted <service name="BookTicketsService"> <port name="BookTicketsPort" binding="tns:BookTicketsPortBinding"> <soap:address location="http://aatika-pc:31820/WebServiceEx/BookTicketsService"/> </port></service>
- 16. WSDL