Java | Mastering JEE Web Application Development
Learning Objectives
Students who attend Mastering JEE Web Application Development will leave the course armed with the required skills to design and build scalable, secure, maintainable web applications - leveraging our extensive experience in the delivery of scalable enterprise applications with complex web interfaces based on JEE technologies.
Throughout this training, you will be confronted with common web application design problems and given the tools you will need to solve them, such as JEE design patterns. You will also be exposed to a range of JEE and web technologies such as Servlets, JSPs, JSF, JNDI, CDI and advice on when and how to use them. Students will also learn about the capabilities of servlets, their advantages, servlet architecture, and session management. Developers will also learn about managing resources, deployment, and application models, how to use custom tags, and how to build robust and capable web applications using servlets and other components.
The course begins with a discussion of web application architecture. A major part of the course is spent on the various web components that are used to implement dynamic web applications. Students will learn not only specific topics and APIs but also how to fit the pieces together into a complete application.
Working within in an engaging, hands-on learning environment, guided by our expert team, attendees will learn to:
- Design and build web applications from both business and technical requirements
- Build web interfaces with JSF, JSPs and Servlets, using the latest technologies in JEE.
- Write maintainable web applications that separate HTML and Java
- Understand the design and development of web applications using Servlets, JSPs, web fragments, and JSF
- Work JEE’s version of dependency injection (CDI)
- Make Servlets cooperate and share data
- Store and process session information
- Deal with concurrency issues
- Access databases with JPA
- Work with annotations included in JEE
- Work with WebSockets as well as asynchronous servlets
- Use Java Bean validation in a web application
- Properly handle various types of exceptions
Audience & Pre-Requisites: Who Should Attend
This is an introductory- level Java programming course, designed for experienced developers who wish to get up and running with JEE, or who need to reinforce sound Java for Web / JEE coding practices. Attendees should have a working knowledge of developing basic Java software applications.
Take Before: Attendees should have incoming skills equival.ent to those in the course(s) below or should have attended these as a pre-requisite:
- TT2104 Fast Track to Java Programming for OO Experienced Developers (4 days)
Take After: Our core Java training courses provide students with a solid foundation for continued learning based on role, goals, or their areas of specialty. Our object oriented, Java developer learning paths offer a wide variety of follow-on courses such as:
- Continued Java & JEE training: Spring, Microservices, RXJava, REST, Java for Web, Web Services, Tuning, Patterns & more
- TDD / Test Driven Development, JUnit / Unit Testing, Agile development training
- Secure Java Coding / Java Security and secure application development training
- Mobile developer / Android training
- Please contact us for recommended next steps tailored to your longer-term education, project, role or development objectives.
Outline
Session: Developing Java EE applications
Lesson: Enterprise Development
- Enterprise Application Software
- Requirements of Enterprise applications
- Scalability, Load Balancing, Fail Over
- Resource pooling
Lesson: Java EE Core Components
- Overview of Java EE Core Components
- Web Tier Components
- Application Tier
- Deployable Units
- Deployment Descriptors
- The Java Naming and Directory Interface (JNDI)
- Tutorial: Working with Eclipse (JEE Version) and Apache TomEE 7.0.x
- Tutorial: Working with TomEE 7
Session: JEE Dynamic Web Applications
Lesson: Introduction to Servlets
- The Servlet Interface
- The Web Container
- Creating HTML Output Using Servlets
- The @Webservlet Annotation
- Interaction Between web.xml and Annotations
- The @Webinitparam Annotation
- Lab: A First Servlet
Lesson: Form processing using Servlets
- Using HTML5 Forms with Servlets
- Processing Request Parameters
- HttpServletRequest Methods
- HttpServletResponse Methods
- Lab: Form Processing
Lesson: Java Server Pages
- Java Server Pages ( JSPs)
- The Relationship Between JSPs and Servlets
- The JSP lifecycle
- The role of JSPs in Java EE 7
- Lab: A First JSP
Lesson: Implementing MVC in JEE
- Model View Control
- Using the RequestDispatcher
- Handling Requests
- The Request Scope
- Handling Request Attributes
- The Expression Language (JSR 341)
- EL in Template text
- Lab: Implementing MVC
Lesson: Session Management
- Sessions in Web Applications
- The HttpSession object
- Session Management in Java EE
- Handling Cookies
- URL-Rewriting
- Lab: Managing Sessions
Session: JEE Servlet Filters and Listeners
Lesson: Servlet Filters
- Introduce Servlet Filters
- Modify the request data
- Modify the response data
- The @WebFilter annotation
- Define Filter Mappings
- Move functionality out into a decorator pattern
- Lab: Adding Filters
Session: Expression Language 3.0 (EL)
Lesson: Overview of EL
- The Expression Language (JSR 341)
- Value and Method Expressions
- Immediate and Deferred Evaluation Syntax
- Read and Read/Write expressions
Lesson: The EL language
- EL Operators
- EL Reserved Words
- EL Implicit objects
- Referencing Objects using EL
- Lab: Working with EL
Session: Custom Tags
Lesson: Introduction to Custom Tags
- Custom tags
- Using the taglib Page Directive
- The TLD File
- The Tag Implementation Class
Lesson: The Java Standard Tag Library
- JSTL Overview
- Use JSTL to Iterate Over Collections of Data
- JSTL functions
- Lab: Using JSTL
Session: Contexts and Dependency Injection (CDI)
Lesson: Introduction to CDI
- Context Dependency Injection (CDI)
- The @Inject Annotation
- The @Default Annotation
- The @Alternative Annotation
- The @Named Annotation
- Lab: Using CDI
Lesson: Using CDI
- Qualifiers
- @PostConstruct and @PreDestroy
- The @Produces Annotation
- Lab: Using Qualifiers
Lesson: CDI and Java EE
- CDI's Relationship to Java EE
- The @Model annotation
- Built-in CDI scopes
- Lab: Using CDI and Servlets
Session: Using Resources
Lesson: JEE DataSources
- DataSources in JEE
- Setup a DataSource
- Using CDI to inject a DataSource
- Lab: Using DataSources
Lesson: Overview of JPA
- Introduce the Java Persistence API (JPA)
- Benefits of Using an ORM framework
- Hibernate and JPA
- Lab: Using JPA
Session: Java API for WebSocket
Lesson: Introduction to WebSocket
- Java API for WebSocket Overview
- Using WebSocket in Java EE
- Endpoint Instances
Lesson: Implementing WebSocket Endpoint
- Annotated Endpoints
- Receiving messages
- Send Response to Client(s)
- JavaScript to Setup a WebSocket Connection
- Lab: Implementing a WebSocket
Lesson: Extending WebSockets
- Manage Client State
- Encoding and Decoding Messages
- Handling Errors
- Lab: Encoding and Decoding Messages
Session: Java Bean Validation (JSR 349)
Lesson: Introduction to Bean Validation
- Bean Validation
- Define Constraints on Object Models
- Core Validation Annotations
- Validate Objects and Object Graphs
- Lab: Bean Validation
Lesson: Bean Validation
- Validate Parameters and Return Values
- Develop Custom Constraints
- Lab: Creating Constraints
Session: Managing Web Applications
Lesson: Web Fragments
- Need for Web Fragments
- The web-fragment Element
- Fragment Ordering
- Lab: Fragments
Lesson: Error Handling
- Handling HTTP Errors Codes
- Handling Exceptions
Lesson: Asynchronous Servlets
- Invoking a ‘Long Running’ Process
- The asyncSupported Attribute
- Using the AsyncContext Class
- Handling AsyncEvent Objects
- Nonblocking I/O in Servlets
- Lab: ASync Servlets
Lesson: Web Security
- Specify the Servlet Security Model
- Roles in the Web Application
- Access Control and Authentication Requirements
- Security-Related Annotations
- Servlet 3.1 Predefined Roles
- The deny-uncovered-http-methods XML Element
- Lab: Web Security
Session: Introduction to Java Server Faces
Lesson: Introduction to JSF
- JSF Overview
- The JSF ‘Components’
- Configuring a JSF Application
- MVC using JSF
- Lab: First JSF
Lesson: JSF Components
- Understand the component architecture of JSF
- Explain the use of the RenderKit
- User Interface Component Model
- Introduce the JSF Custom Tags
- Explain the functionality of the various input tags
- Panels and tables in JSF
- Lab: JSF HTML Tags
Session: Facelets
Lesson: Facelets
- Facelets as View Handlers
- Custom Tags Used in Facelets
- The @Named Annotation
- The @RequestScoped and @SessionScoped Annotations
- Using the dataTable Custom Tag
- Lab: Working With Facelets
Lesson: Facelets Templating and Resources
- Creating a Consistent Look and Feel
- Templating and Placeholders
- JSF resource management
Lab: Facelets Templating
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