Web Services training: Introduction to Java Web Services with J2EE 1.4

Course Number: JWS-100
Duration: 5 days
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Java Web Services Training Overview

This class prepares Java^® programmers to develop interoperable Java Web services and using SOAP, WSDL, and XML Schema. Students get an overview of the interoperable and Java-specific Web services architectures, and then learn the standard APIs for SOAP messaging and WSDL-driven, component-based service development. Both document-style and RPC-style messages and services are covered in depth.

Location and Pricing

Most Accelebrate courses are taught on-site at our clients' locations worldwide for groups of 3 or more attendees and are customized to their specific needs. Please visit our client list to see organizations for whom we have recently delivered training. These courses can also be delivered as live, private online classes for groups that are geographically dispersed or wish to save on the instructor's or students' travel expenses. To receive a customized proposal and price quote private training at your site or online, please contact us.

In addition, some courses are available as live, online classes for individuals. To see a schedule of online courses, please visit http://www.accelebrate.com/online_training/?action=category&page=javaxmlws.

Java Web Services Training Prerequisites

Solid experience in Java Programming, including object-oriented Java and the Java streams model, is essential to learning to build Java Web services.
Some experience with Java EE development, especially Web applications using servlets, will be very helpful, but is not strictly required.
Some understanding of XML and XML Schema is strongly recommended.
Various related technology is discussed in the course: JAXP, SAX, DOM, XSLT, XPath, JSP, and JSTL. None of these is a formal prerequisite for the course, and labs are built to allow students without experience in these topics to work through successfully. Experience in these areas will be helpful, however.

Hands-on/Lecture Ratio

This class is 70% hands-on, 30% lecture, with the longest lecture segments lasting for 20 minutes.

Java Web Services Training Materials

Attendees receive more than 400 pages of comprehensive courseware and a copy of Addison-Wesley's J2EE Web Services.

Software Needed on Each Student PC

Java EE application server or servlet/JSP container of the attendees' choice, with web services support. If none has been chosen, we recommend Tomcat [http://tomcat.apache.org] with Axis [http://ws.apache.org/axis/] installed.
The Java IDE of your choice. If none has been chosen, we recommend Eclipse [http://www.eclipse.org] or NetBeans [http://www.netbeans.org].

Java Web Services Training Objectives

After this training, attendees shall be able to:

Be able to describe the interoperable web services architecture, including the roles of SOAP and WSDL.
Understand the importance of the WS-I Basic Profile for interoperable web services.
Build JAX-WS services and clients that take full advantage of the automated data binding of JAXB.
Use lower-level SOAP and XML APIs for services and/or clients.
Customize data binding by specifying specific type mappings or altering method or parameter names.
Incorporate binary data, such as images, into service and client code.
Expose session beans as web services.

Java Web Services Training Outline

Interoperable Web Services

Motivation for Web Services
Evolution of Web Services
HTTP and XML
Interoperability Stacks
Simple Object Access Protocol (SOAP)
Web Service Description Language (WSDL)
Universal Description, Discovery and Integration (UDDI)
The WS-I Basic Profile
REST

Building and Hosting Web Services

Hosting Web Services: Scenarios
SOAP Alone
Service Description
Building Services and Clients from WSDL
Publishing and Discovery
Practical Requirements
The J2EE Reference Implementation
Demonstration: A Running Web Service and Client
Sniffing SOAP Messages
Development Process

The Java Web Services Architecture

Web Services and the J2EE
The Java API for XML Processing (JAXP)
The Java API for XML Binding (JAXB)
The SOAP With Attachments API for Java (SAAJ)
The Java API for XML Messaging (JAXM)
Demonstration: A SOAP-Based Web Service Using JAXM and SAAJ
The Java API for XML-Based RPC (JAX-RPC)
Demonstration: A WSDL-Enabled Web Service Using JAX-RPC
WSDL-to-Java vs. Java-to-WSDL
The Java API for XML Registries (JAXR)

The Simple Object Access Protocol (SOAP)

SOAP Messaging Model
SOAP Namespaces
SOAP over HTTP
The SOAP Envelope
The Message Header
The Message Body
SOAP Faults
Attachments
XML Schema
Validating Message Content
SOAP Encoding

The Java APIs for SOAP Messaging (SAAJ)

The SAAJ Object Model
Parsing a SOAP Message
Reading Message Content
Working with Namespaces
Creating a Message
Setting Message Content
Integration with the DOM and JAXP

The Java API for XML Messaging (JAXM)

Building Low-Level Web Services
Messaging Scenarios
Point-to-Point Messaging
JAXM Message Providers
JAXM Servlets
Creating a SOAP Connection
Sending a Message

Web Services Description Language (WSDL)

Web Services as Component-Based Software
The Need for an IDL
Web Services Description Language
WSDL Information Model
The Abstract Model - Service Semantics
Message Description
Messaging Styles
The Concrete Model - Ports, Services, Locations
Extending WSDL - Bindings
Service Description

The Java API for XML-Based RPC (JAX-RPC)

The Java Web Services Architecture
Two Paths
How It Works - Build Time and Runtime
The Web Services for J2EE Specification
JAX-RPC Deployment
Mapping Between WSDL/XML and Java
Generating from WSDL
Generating from Java

Generating Web Services from Java Code

The Java-to-XML Mapping
Primitive Types and Standard Classes
Value Types and JavaBeans
The Java-to-WSDL Mapping
Simple and Complex Types
Arrays and Enumerations
Service Endpoint Interface
Scope of Code Generation
Inheritance Support
Multi-Tier Application Design
Analyzing the Domain
When Things Don't Fit

Generating Java Web Services from WSDL

The XML-to-Java Mapping
Simple and Complex Types
Enumerations
Arrays
Miscellaneous, Optionally-Supported Constructs
The WSDL-to-Java Mapping
Mapping Operation Inputs and Outputs
Building a Service Client
Locating a Service
Client-Side Validation
Creating a Web Service
Deploying the Service

Best Practices and Techniques

Which Way to Go?
Interoperability Impact
Controlling Names and URIs
Polymorphism in JAX-RPC
The Dynamic Invocation Interface
Extensible Type Mapping
Passing Objects
Performance Patterns
Another CORBA?

EJB, JSP and Web Services

Enterprise JavaBeans
Three Tiers for J2EE
EJB 2.1 and JAX-RPC
Session Beans as Web Service Endpoints
The Bean's Service Endpoint Interface
SOAP as an RMI Transport
Adding a SOAP Interface to a Session Bean
Generating From WSDL
"Gotchas"
JSP and XML
The JSTL: Core and XML Actions
JSP, JSTL and SOAP
Reading SOAP Using XPath
Performing XSLT Transformations
JSPs as Web-Service Clients
Custom Tags for SAAJ and JAXM

Service Lifecycle and Message Handlers

Web Services as J2EE Components
Service Lifecycle
Component Environment and JNDI
Handling SOAP Headers
Servlet Endpoint Context
EJB Endpoint Context
MessageContext and SOAPMessageContext
Message Handlers and Handler Chains
Processing Model and Patterns
Session Management in JAX-RPC

SOAP Attachments

SAAJ Object Model, Revisited
The SOAPMessage Class
MIME
The Java Activation Framework
The MimeHeaders Class
The AttachmentPart Class
Adding SOAP Attachments
Identifying Attachments
Reading Attachments
JAX-RPC and Attachments
Generic Mapping for MIME Types
Using Images and Binary Types in Interfaces and Structs

Security

Web Services and Security
Threats
Technology and Techniques
Public Key Encryption
Digital Signature
J2EE Techniques
Securing Web-Service URIs
HTTPS
XML and SOAP Solutions
XML Encryption and Signature
WS-Security
SAML
XACML

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