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WA2165

Mastering JAX-RS REST Web Services and AJAX Clients - WebSphere 8.5 / Eclipse Training

This course teaches you to design and build portable, standards-based RESTful web services using Java and JAX-RS. Master REST architecture principles, implement services with annotations, and seamlessly integrate them into your Java environments. Additionally, learn how to create dynamic AJAX clients that interact with your REST services, delivering rich, Web 2.0 experiences. This course empowers you to create robust, interoperable web services for modern applications.

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Course Details

Duration

4 days

Prerequisites

  • Experience with Java programming is required.
  • Experience with Eclipse/RAD is useful but not required.
  • An understanding of basic web architecture and the HTTP protocol.
  • Prior experience with RPC-style services such as Web services, Java RMI, COM objects, etc. is helpful, but not required.

Target Audience

Architects and Developers that need to design and develop SOAP web services using JAX-WS and RESTful web services using JAX-RS.

Skills Gained

  • Understand the REST style of software architecture
  • Describe the advantages and disadvantages of applying RESTful design strategies to various scenarios
  • Implement RESTful services using the JAX-RS Java specification
  • Create JAX-RS services that use various types of request/response content
  • Compare and contrast REST with RPC, SOAP, and other similar communication strategies
  • Apply fine-grained control of the responses returned from JAX-RS services
  • Use various techniques to implement clients of RESTful services
  • Apply Java EE security to JAX-RS services
  • Consume REST services using AJAX
  • Format and style XHTML-compliant service data using CSS, XSLT, or both
  • Interact with secure data services
Course Outline
  • REST Services
    • Many Flavors of Services
    • Understanding REST
    • Principles of RESTful Services
    • REST Resource Examples
    • SOAP Equivalent Examples
    • REST vs SOAP Communication
    • More REST vs SOAP
    • REST vs SOAP Summary
    • Famous RESTful Services
    • Additional Resources
  • Designing a RESTful Service
    • Introduction
    • The Design Methodology
    • Ingredients of a Service Operation Interface
    • What Constitutes a REST Resource
    • Resource Identifiers
    • MIME types
    • HTTP Methods
    • Example Operation Interface Document
  • Introduction to JAX-RS
    • The JAX-RS Specification
    • The Resource Class
    • A Bunch of Annotations
    • @Path
    • More Complex Paths
    • Using Path Parameters
    • HTTP Binding
    • web.xml
  • JAX-RS Data Injection
    • Sources for Injected Data
    • Path Parameters
    • Query Parameters
    • HTML Form Input
    • Cookies
    • Matrix Parameters
    • Http Headers
    • Default Values
    • Parameter Conversion
    • Custom Types
  • JAX-RS Content Types
    • Internet Media Types
    • Use of Media Type in REST
    • The @Consumes Annotation
    • Content Negotiation
    • The @Produces Annotation
    • The MediaType Class
    • JAXB
    • Dynamic Content Negotiation
  • REST vs. SOAP
    • Defining REST
    • The Six REST Architectural Style Constraints
    • The Four REST Interface Constraints
    • Hypermedia Examples
    • Defining SOAP
    • RPC SOAP vs. REST
    • Document SOAP vs. REST
    • Where SOAP Shines
    • Where REST Shines
    • Selecting an Appropriate Solution
  • Building Complex JAX-RS Responses
    • HTTP Response Status Codes
    • Introduction to the JAX-RS Response Class
    • Using the Response and Response.ResponseBuilder Classes
    • Example: Conditional HTTP GET
    • Returning Cookies
    • Cookies in Response Headers
    • Reading Cookies
    • Returning an Exception
    • ExceptionMappers
  • Clients of JAX-RS Services
    • Java Web Service Clients
    • Apache HttpClient
    • More Apache HttpClient Code
    • JAX-RS Implementation Client Libraries
    • RESTEasy Example
    • HATEOAS
    • Building Links with UriBuilder and UriInfo
    • Using Atom Links for State Transitions
    • WADL
  • Introduction to AJAX
    • What is AJAX?
    • A Simple Example
    • The Old Way
    • The AJAX Way
    • Two Key Aspects of AJAX
    • What are the Advantages of the AJAX Approach?
    • AJAX Technologies
    • The Basic AJAX API
    • Creating the XMLHttpRequest Object
    • The XMLHttpRequest Object Basics
    • Complete Example
    • The Timeline
    • Review Questions
    • Review Answers
  • JavaScript DOM API
    • What is DOM?
    • Element Hierarchy
    • DOM Standardization
    • The Document Object
    • Nodes and Elements
    • The Element Object
    • Element Event Handlers
    • The window Object
    • The Frame Object
    • The History Object
  • AJAX API Details
    • The Request Object
    • Creating the Request Object
    • Properties of the Request Object
    • Methods of the Request Object
    • Simple GET Example
    • Making a POST Request
    • Making Concurrent Requests
    • Memory Leak With Inner Function
    • A POST Utility Function
    • Mozilla XmlHttpRequest Extensions
    • IE Microsoft.XMLHTTP Extensions
    • Ajax Caching
    • Control Cache Duration
    • Advanced Cache Control
  • Communication With Server - Basic
    • Introduction
    • Application Layer Protocol
    • Choosing a Data Format
    • Plain HTML Snippet
    • XML Document
    • XML Document – Server Side
    • Example: Build DOM Document in Java
    • Example: Write DOM Document in HTTP Reply
    • Example: The Servlet
    • C#: Create a XML DOM Document
    • C#: Output XML in HTTP Reply
    • XML Document - Client Side
    • DOM API Summary
    • DOM API – The Document Object
    • DOM API – The Element Object
    • Body Text of an Element
    • Setting Body Text
    • Displaying Body Text
    • Using XML As Request Data
    • Creating a New DOM Document
    • Serializing DOM Document as Text
    • Posting an XML Document
    • Processing the Posted XML From a Servlet
  • Communication With Server - JSON
    • Introduction
    • JavaScript Object Notation (JSON)
    • JSON Syntax
    • How Does JSON Based Communication Work?
    • JSON API in HTML5
    • How Does JSON Based Communication Work?
    • JSON: Server Side
    • JSON: Client Side
    • Working With Arrays
    • Advanced JSONObject Methods
    • Advanced JSONArray Methods
  • Securing JAX-RS Services
    • HTTP Basic Authentication
    • Example Client
    • The WWW-Authenticate and Authorization Headers
    • Java EE Security Roles
    • Integration with Web Container Security
    • Java EE Security Annotations
    • SecurityContext
    • Restrictions Based on Content Type