Introduction to Web Services Development

Training Description

This Introduction to Web Services Development self-paced technical training course will provide the participant with an understanding of the capabilities of Web Service for integrating a wide variety of ecommerce applications. This seminar will illustrate the building, testing and deployment of Web Services, explore their fundamental capabilities, utilization of SOAP and XML, role of WSDL (Web Services Descriptive Language), service development with JAX-RPC and JAX-WS, use of UDDI registries and the development of JavaBeans and EJBs as Web Services.

Training Objectives

As a result of attending this training, the student will be able to:

Identify the architecture of Service Oriented Architecture
Explain the roles of SOAP and XML
Demonstrate the conversion of JavaBeans and EJBs to function as Web Services
Illustrate the use of Web Services Descriptive Language (WSDL)
Depict the SOAP processing architecture: messages and bindings
Develop Web Service from a JavaBean and an Enterprise JavaBean
Demonstrate the use of JAX-RPC and JAX-WS for service development
Depict process of serialization in SOAP and compare to J2EE equivalent
Demonstrate the development of Web Service client applications
Depict the UDDI registry model architecture
Illustrate the role of Web Services Gateway architecture
Illustrate the deployment of Web Services to the Application Server environment

Prerequisites

Each student should have an understanding of application development and basic design methodologies.

Module Outline

Section I: SOA Architecture

Module OO: Course Introduction

Module 1: SOA Pyramid

Levels of a successful SOA implementation
Discuss differences between SOA and Web Services
Illustrate importance of SOA implementation layers

Module 2: SOA Business Challenge

Discuss challenges that SOA addresses
Illustrate vertical application integration issues
Discuss how Web Services solved initial problems

Section II: Web Services Overview

Module 3: Web Services Role

Use as integration tool
Role of emerging standards
Use of XML, SOAP and WSDL

Module 4: Examining SOAP

Define role of SOAP
Hiding implementation levels
Structure of SOAP message

Module 5: Defining WSDL

Components of WSDL document
o Service implementation
o Service Definition
Usage of WSDL

Module 6: UDDI Registries

Use with Discovery
UDDI Models
o Green
o Yellow
o White

Section III: SOAP and JAX-RPC Clients

Module 7: Understanding SOAP

Role of SOAP
SOAP Message components
SOAP Envelope

Module 8: SOAP over HTTP Protocol

Synchronous and Asynchronous
SOAP embedding within HTTP
RPC vs Document style
Message paths

Module 9: Using JAX-RPC

Illustrate role of JAX-RPC
Discuss service endpoints
Use with EJBs
Client-side programming models

Module 10: JAX-RPC Service endpoints

Architecture
Role of JAX-RPC servlet
Rules for implementation

Module 11: JAX-RPC clients

SOAP Clients
Stub interface
Rules for implementation

Section IV: Use of JAX-WS

Module 12: Overview of JAX-WS

Layered programming model
JAX-WS design
Communication in JAX-WS
Client view

Module 13: Annotations

Compare JAX-RPC and JAX-WS
@Webservice
@WebMethod
@WebParam
@WebResult
Use with client

Section V: Web Services and WSDL

Module 14: WSDL Overview

WSDL important elements
RPC vs Document style
Fault messages

Module 15: Element Declarations

Porttype vs Interfaces
Operations
SOAP bindings
Body element

Section VI: Overview of SAAJ

Module 16: SAAJ API

Illustrate use of SAAJ
SAAJ Interfaces
MessageFactory class
SOAPMessage

Module 17: SAAJ to SOAP

SAAJ to SOAP document
Using Name objects
SOAPElement interface
Node type
SoapHeader
SoapBody

Module 18: Sending SOAP Messages

SOAPConnection
SOAPConnectionFactory