1. GF and RS, Dept. of CS, Mangalore University
Web Services
(Part 1)
CSE 465: Web Technologies
Raveeshwara S
GF and RS, Dept. of CS, Mangalore University

2. Web Services (Part 1) - CSE 405 Web Technologies
What’s Up?
Internet!
Memory Test
Introduction - Web Service
Types
Working of JAX-WS
Web Services (Part 1) - CSE 405 Web Technologies

3. Web Services (Part 1) - CSE 405 Web Technologies
Basics
Server and Service
Web Server
Computer system or software that accepts and supervises HTTP requests (wiki)
Examples (software): Apache, IIS (Microsoft), GWS (Google)
Web Services (Part 1) - CSE 405 Web Technologies

4. Basics – Web Clients and Server
Web Server
Web Services (Part 1) - CSE 405 Web Technologies

5. Basics – Web Clients and Server
Figure: Working process of web servers; Source: Wikipedia
Web Services (Part 1) - CSE 405 Web Technologies

6. Web Services (Part 1) - CSE 405 Web Technologies
Service offered by an electronic device over Web (wiki)
W3C: A web service is a software system designed to support interoperable machine-to-machine interaction over a network
Web Services (Part 1) - CSE 405 Web Technologies

7. Web Services (Part 1) - CSE 405 Web Technologies
Web Service - Examples
Weather Service
Give location, get weather forecast
Change time period
Map Service
Give location coordinates, get map
Give location name, get map
Navigate, change zoom levels
Web Services (Part 1) - CSE 405 Web Technologies

8. Web Service - Architecture
Web Service Client
Web Service Provider
Web Services (Part 1) - CSE 405 Web Technologies

9. Web Services (Part 1) - CSE 405 Web Technologies
Web Service - Types
SOAP Web Services
SOAP - Simple Object Access Protocol
Use XML for communication
Initial web services
Bit complex – implementation, use, communication
RESTful Web Services
REST - Representational state transfer
Response could be HTML (common), JSON, XML etc.
Easy
Web Services (Part 1) - CSE 405 Web Technologies

10. SOAP Web Service - Architecture
By H. Voormann - en.wikipedia.org/wiki/Web_service, CC BY-SA 3.0
Web Services (Part 1) - CSE 405 Web Technologies

11. Web Services (Part 1) - CSE 405 Web Technologies
Java Web Services
JAX-RPC - Java API for XML-based RPC
Now, JAX-WS - Java API for XML Web Services
Uses SOAP
JAX-RS - Java API for RESTful Web Services
RESTful
Web Services (Part 1) - CSE 405 Web Technologies

12. Web Services (Part 1) - CSE 405 Web Technologies
Web Service - Glossary
WSDL - Web Services Description Language
SOAP - Simple Object Access Protocol
REST - Representational state transfer
JAX-RPC - Java API for XML-based RPC
JAX-WS - Java API for XML Web Services
JAX-RS - Java API for RESTful Web Services
XML - Extensible Markup Language
JSON - JavaScript Object Notation
UDDI - Universal Discovery, Description, and Integration
Web Services (Part 1) - CSE 405 Web Technologies

13. Web Services (Part 1) - CSE 405 Web Technologies
Summary
Internet and Web
Introduction to Web Service
Types of Web Services
WSDL, SOAP
Working of SOAP Web Service (JAX-WS)
Web Services (Part 1) - CSE 405 Web Technologies

14. Web Services (Part 1) - CSE 405 Web Technologies
Today’s Web Service
REST (representational state transfer)
RESTful APIs
Web API
Web Services (Part 1) - CSE 405 Web Technologies

15. Web Services (Part 1) - CSE 405 Web Technologies
Thank You!
Introduction to Web Services
Presentation by Raveeshwara S, Dept. of CS, Mangalore University
Web Services (Part 1) - CSE 405 Web Technologies