JV014 - Web Development with Struts 2

Summary

5 days

The goal of Struts2 is  to make web development easier for the developer. To achieve this goal Struts2 provides features to reduce XML configuration files, utilizes annotations. Actions are POJOs which increases testability and reduces coupling in the framework.

In this course you gain knowledge of the Struts 2 architecture and exercises will give you a solid knowledge of all components of the Struts 2 framework.

Prerequisites
This course is intended for Java Developers who are familiar with JSP and have basic knowledge of XML.

Module 1: Introduction to Struts 2 Framework

  Introduction
  What is a Framework?
  Struts 2 Overview
  Struts 2 Implementation of MVC
  Processing Request
  Model – Action
  View – Result
  Interceptors
  Exception Handling
  The ValueStack and ONGL
  Advantages of Struts 2
  Struts 2 vs. Struts 1

Module 2: Struts 2 Architecture

  Two Ways of Declaring Architecture
  Declarative Architecture
  XML Based Declarative Architecture
  The struts.xml file
  The struts.xml file – include tag
  The struts.xml file – package tag
  Actions
  Actions –Single Result
  Actions –Multiple Results
  Request and Form Data
  Accessing Business Services
  Accessing Data from the Action
  Value Stack
  Example
  Exercise

Module 3: Struts Configuration File

  Overview
  The struts.xml File (package element)
  Package Inheritance
  The struts.xml File (include element)
  The struts.xml File (action element)
  The struts.xml File (result element)
  The global-results Elements
  Results
  Namespace Configuration
  Namespace Example
  The interceptor-related Elements
  Exercise

Module 4 : Action Classes

  Action
  What Does an Action Do?
  Encapsulates Interaction with the Model
  Provides Locus for Data Transfer
  Returns Control String for Result Routing
  Packaging Your Actions
  Implementing Action class
  ActionSupport Class
  ActionSupport Class validate method
  Using Resource Bundles
  Accessing Resources
  Aware Interface
  ServletContextAware Interface
  ServletRequestAware Interface
  SessionAware Interface
  ServletResponseAware Interface
  Example
  Exercise

Module 5: The Persistence Layer

  JDBC
   Overview of JDBC
   Connecting to the DataBase
   Submitting the SQL statements
   Retrieving and processing data
   DB_Action Class
   Data Access Object
   Exercise
  Hibernate
   Overview
   Hibernate
   Architecture Of Hibernate
   Code Example
   Creating Persistent Java Objects
   Mapping Persistent Object
   Hibernate Configuration File
   Inserting new record
   Querying the database
   Example
   Exercise
Java Persistence API (JPA)
   Introducing JPA
   Hibernate And JPA
   Using Annotation
   Using Hibernate EntityManager
   persistence.xml
   Hibernate_JPA Project
   Example

Module 6: The Interceptors

  Overview
  Invocation of an Action
  ActionInvocation Class
  Built-in Struts 2 interceptors
  Configuring Interceptors (struts.xml)
  Setting and Overriding Parameters
  Interceptor Interface
  Create Your Own  Interceptor
  Example
  Exercise 

Module 7: Type Conversion

  Introduction
  Build in Converters
  Primitives And Wrapper Classes
  Customizing Error Messages
  Custom Type Converters
  Configuring the framework
  Example: Custom Type Converters
  Exercise
  Global Type Converters
  
Module 8:  OGNL and Tags Library

  Introduction
  OGNL and Struts 2
  The Value Stack
  The ActionContext
  Expression Language
  Reading Value Stack Object Properties
  Selecting The Root Object For OGNL
  ValueStack Details
  An overview of Struts tags
  Using OGNL to Set Attributes on Tags
   The property tag
   The set tag
   bean Tag
  UI Struts Tag Library
  UI Input Tags
  The Form Tag
  The textfield, password Tags
  The submit Tag
  The reset Tag
  The checkbox Tag
  Non UI (Generic) Tags
  if Tag
  iterator Tag

Module 9: Validation Framework

  Overview
  Using a Validator
  Validator Configuration
  Validator Configuration (param)
  Strurs Build-in Validators
  Date validator
  double Validator
  requiredstring Validator
  Example
  Exercise
  Writing a Custom Validator
  Example
  Exercise

Module 10: Internationalization

  Introduction
  Java Support for I18n
  Struts 2 Support of i18n
  Request_locale Parameter
  Example
  Exercise

Module 11: Inversion of Control

  Introduction
  Dependencies
  Injecting Dependencies 
  Setter Injection
  Problem Description
  Adding Spring to Struts 2
  Web.xml
  applicationContext.xml
  struts.xml After Integration
  Example
  Exercise

Module 12: Advanced Topics

Alternative Method Invocation
Wildcard Method
Dynamic Method Invocation 

Module  13:   Securing Struts 2 Applications (Part 1)

Overview
How Web Security Works
Security Definitions
The Four Checks
Filters
FilterToBeanProxy
FilterChainProxy
Configuration
The Filter Chain
AuthenticationProcessingFilter
The HttpSessionContextIntegrationFilter
The ExceptionTranslationFilter
FilterSecurityInterceptor
AuthenticationManager
AccessDecisionManager
AuthenticationEntryPoint
Securing Web Resources
Example
Securing Method Invocation
Example
View-layer security
Example
Summary

Module  14:   Securing Struts 2 Applications (Part 2)

What is Spring Security 2.0?
web.xml Changes
web.xml
A Minimal <http> Configuration
<http> Tag
<authentication-provider> Tag
Adding a Password Encoder
Example: Securing Web Resources
Method Security
The <global-method-security> Tag
@Secured Annotation
Example: Method Security
Adding Security Pointcuts using protect-pointcut
The intercept-methods Bean Decorator
View-layer security
Example
Summary

Appendix   Servlets And JSP Filters