Java Web Programming (JEE) and REST

Course Number:

NTXJVA220

Audience:

Course Duration:
5 days

Prerequisites:

Students should complete an introductory Java class or have at least three months of Java programming experience before taking this course.

Course Objectives:

• Recognize what technologies are available in JEE
• Demonstrate understanding of web application file and packaging structure
• Understand and appreciate the role of Java Servlets in the overall Java Enterprise Edition architecture
• Use request and response objects provided to a servlet to read parameters and to produce an HTML response
• Develop interactive web applications using HTML forms and servlets
• Manage complex conversations with HTTP clients using session attributes
• Diagram and explain  the differences in MVC and MVVM
• Create a RESTful web service in Java using JAX-RS

Course Outline:
  • JEE Overview
    • JEE Technologies
    •  HTTP Overview
      •  Requests (GET/POST)
      •  Responses
      •  URLs
      •  Resource Mappings
      •  Request Parameters
    •  Web Applications
      •  Structure
      •  WAR File
      •  Context Root
      •  Deployment
  •  Servlet Basics
    •  Overview and API
      •  Static versus Dynamic Content
      •  Servlets
        •  Role in a Web App
        •  Servlet Interface
        •  GenericServlet Class
        •  HttpServlet Class
      •  Mapping a URL to a Servlet Class
      •  Web Container
    •  Requests and Responses
      •  HttpServletRequest
        •  Reading HTTP Request Headers
        •  HTML Forms
        •  Reading HTTP Request Parameters
      •  HttpServletResponse
        •  Setting HTTP Response Headers
      •  Monitoring Requests and Responses
  •  Advanced Servlets
    •  Servlet Lifecycle
      •  Overview
      •  Instantiation
      •  Initialization
        •  init(ServletConfig) Method
        •  init() Method
        •  Lazy Initialization
      •  Service
        •  Service() Method
        •  Relationship of service() to doGet()/doPost()
      •  Destruction
        •  Destroy() <ethod
    •  Servlet Configuration
      •  ServletConfig Interface
      •  Reading Initialization Parameters
    •  Deployment Descriptors
      •  Web.xml
        •  <servlet> Element
        •  <servlet-mapping> Element
        •  <welcome-file-list> Element
      •  Vendor-web.xml
    •  Servlet Threading
      •  Servlets are Singletons
      •  Servlets are Multithreaded
      •  Synchronization Techniques
  •  Session Tracking
    •  HttpSession
      •  Need for Sessions
      •  HttpSession Class
      •  Accessing the Session
      •  Session Invalidation
      •  Session Timeout
    •  Cookies
      •  Overview
      •  Cookie Class
      •  Cookie Expiration
      •  Sending Cookies to the Client
      •  Retrieving Cookies from the Client
      •  JSESSIONID
    •  URL Rewriting
      •  Overview and Need for URL Rewriting
      •  URL Rewriting and HttpSession
    •  Scopes
      •  Request Scope – ServletRequest Class
      •  Session Scope – HttpSession Class
      •  Application Scope – ServletContext Class
      •  API for Using the Scopes
  •  Model-View-View-Model (MVVM) and Model-View-Controller (MVC)
    •  Interactions
    •  Model, View, Controller
  •  Advantages of MVC
    •  MVVM Overview
      •  ViewModel vs Controller
    •  Leveraging both patterns
  •  Introduction to RESTful Services
    •  SOA fundamentals
      •  JAX-WS vs JAX-RS
      •  REST Features
      •  REST Principles
    •  Defining resources and sub-resources
    •  Consuming data
    •  Using Application and ApplicationPath
    •  Resource locators
  •  Introduction to JAX-RS
    • APIs and Implementations
    •  JAX-RS Overview, Annotations
    •  JAX-RS Implementations
  •  Runtime Environment
    • Application Server, Servlet-Only Container
    •  Architectural and Implementation Perspectives
    •  Configuring the Application•
  • Applications, Resources and Providers
    •  JAX-RS Applications
    •  Resource Classes and @Path
    •  Provider Classes and @Provider
    •  Default Lifecycles
    •  The Application Class and rest-path
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