Spring MVC Architecture and Maven Project
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Questions and Answers

What are the three layers that make up any application?

Presentation Layer, Business Logic, Database Layer

What is the purpose of the Presentation Layer?

User interaction with the application

What does the Business Logic Layer deal with?

Data processing and database connectivity

What is the role of the Database Layer?

<p>Data management and data storage</p> Signup and view all the answers

What is a monolithic application?

<p>An application where all three layers (Presentation, Business Logic, Database) are combined into a single application</p> Signup and view all the answers

What does MVC stand for?

<p>Model, View, Controller</p> Signup and view all the answers

What does the Model represent in MVC?

<p>Business logic along with database connectivity</p> Signup and view all the answers

What is the purpose of the View in MVC?

<p>Presentation layer or user interface</p> Signup and view all the answers

What is the role of the Controller in MVC?

<p>Interface between the View and Model, handling requests and responses</p> Signup and view all the answers

What is the first step to create a maven project in Spring MVC?

<p>Press Ctrl + N and search for maven project, selecting the maven project option</p> Signup and view all the answers

When creating a maven project, it is essential to skip the archetype selection step.

<p>False (B)</p> Signup and view all the answers

What is the next step after selecting an archetype?

<p>Click on Next and apply the filter as org.apache.maven, then select the maven-archetype-webapp (1.5)</p> Signup and view all the answers

What should you do in the next window when creating a maven project?

<p>Provide the group ID and artifact ID, uncheck the &quot;run archetype generation interactively&quot; option, and click Finish</p> Signup and view all the answers

What should you do if your spring MVC project is missing folders?

<p>Select the project folder, right-click, go to Build Path, and click Configure Build Path</p> Signup and view all the answers

What is the next step after going to Build Path in your project?

<p>Go to the Order and Export section, click Select All, and then click Apply and Close</p> Signup and view all the answers

What are some dependencies required for a Spring MVC project?

<p>MySQL connector (A), Hibernate core relocation (B), Project Lombok (C), Spring web MVC (D), Java servlet API (E), JSP API (Java Server Pages API) (F), Spring context (G)</p> Signup and view all the answers

How do you update a maven project?

<p>Select the project folder, right-click, go to Maven, and choose Update Project</p> Signup and view all the answers

When updating a maven project, you should always uncheck the "Force Update of Snapshots/Releases" option.

<p>False (B)</p> Signup and view all the answers

What should you do if you still encounter errors after updating the maven project?

<p>Right-click on the project and select Refresh</p> Signup and view all the answers

Where is the web.xml file located?

<p>src/main/webapp/WEB-INF/web.xml</p> Signup and view all the answers

What is the name of the servlet defined in web.xml?

<p>Dispatcher</p> Signup and view all the answers

What class does the Dispatcher servlet belong to?

<p>org.springframework.web.servlet.DispatcherServlet</p> Signup and view all the answers

How do you find the qualified name of the DispatcherServlet class?

<p>Press Ctrl + Shift + T, search for DispatcherServlet, and then select and open its implementation</p> Signup and view all the answers

Where is the Dispatcher-servlet.xml file located?

<p>src/main/webapp/WEB-INF/Dispatcher-servlet</p> Signup and view all the answers

What is the purpose of the <context:component-scan> tag in Dispatcher-servlet.xml?

<p>It scans the specified package for components annotated with <code>@Controller</code> and registers them as beans</p> Signup and view all the answers

What is the purpose of the <bean> tag for the InternalResourceViewResolver class in Dispatcher-servlet.xml?

<p>It defines the view resolver for JSP views, configuring the prefix and suffix for view files</p> Signup and view all the answers

How do you find the qualified name of the InternalResourceViewResolver class?

<p>Press Ctrl + Shift + T, search for <code>InternalResourceViewResolver</code>, select and open its implementation</p> Signup and view all the answers

Where is the persistence.xml file located?

<p>src/main/resources/META-INF/persistence.xml</p> Signup and view all the answers

What is the purpose of the @Controller annotation?

<p>It marks a class as a controller class, indicating that it handles web requests</p> Signup and view all the answers

What is the role of Handler methods within a controller class?

<p>They handle web requests and process data based on specific mappings</p> Signup and view all the answers

What is the purpose of the @RequestMapping annotation?

<p>It maps specific web requests to controller classes or handler methods</p> Signup and view all the answers

What is the purpose of the @RequestParam annotation?

<p>It binds request parameters to formal arguments of handler methods</p> Signup and view all the answers

What is the role of the ModelMap object?

<p>It maps model data to a specific view, allowing you to pass data from the controller to the view</p> Signup and view all the answers

What is the purpose of the HttpSession object?

<p>It implements stateful applications, tracking authenticated users throughout the application</p> Signup and view all the answers

What is a session in the context of web applications?

<p>The time span between a user's login and logout</p> Signup and view all the answers

Flashcards

MVC Architecture

A software design pattern that separates an application into three interconnected parts: Model, View, and Controller.

Model

The part of the MVC architecture that represents the application's logic, data handling, and database interaction.

View

The part of the MVC architecture that displays the information to the user, creating the user interface.

Controller

The part of the MVC architecture responsible for handling requests from the user, interacting with the model, and choosing the appropriate view to display.

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Monolithic Application

A type of software application where all the components (presentation, logic, database) are bundled together as a single unit.

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Presentation Layer

The layer of an application that deals with user interaction, including UI elements and user input.

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Business Logic Layer

The layer of an application that handles data processing, business rules, and database connectivity.

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Database Layer

The layer of an application that manages data storage and retrieval, interacting with the database.

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Spring MVC

A web application framework created by Spring, designed for building web applications using the MVC architecture.

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Maven

A tool used for managing Java project dependencies and building projects.

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Maven Archetype

A starting point for creating a Maven project.

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Archetype Selection

A feature in Maven that enables you to choose a specific archetype to create your project.

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Artifact ID

A unique identifier that distinguishes your project among other projects.

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Group ID

A unique identifier that represents your project's organization or group.

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Maven Update

The process of updating a Maven project to acquire the latest dependencies and project configurations.

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web.xml

The configuration file for a web application, defining important aspects like servlets, filters, and listeners.

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DispatcherServlet

A servlet that acts as the central controller in Spring MVC, dispatching requests to appropriate handlers.

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Dispatcher-servlet.xml

The configuration file specific to Spring MVC, defining controllers, mappings, and other Spring MVC components.

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Dependency Management

A utility that allows for adding or removing project dependencies from the Maven project.

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MySQL Connector

A library used for connecting to MySQL databases in Java applications.

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Hibernate Core

A library used for object-relational mapping (ORM) in Java applications.

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Java Servlet API

A standard API for developing Java web applications, providing interfaces for servlets and other web components.

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JSP API (Java Server Pages API)

A standard API for creating dynamic web content in Java, making it easy to generate web pages with server-side logic.

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Spring Context

A key component of Spring, responsible for managing application configurations and contexts.

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Spring Web MVC

A Spring module that provides support for creating web applications using the MVC architecture.

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Project Lombok

A Java library that simplifies coding by reducing boilerplate code and providing helpful annotations and features.

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Updating Maven Project

The process of ensuring that all project dependencies and configurations are up-to-date by syncing with the Maven repository.

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Refreshing a Maven Project

A process in which a Maven project is re-indexed and refreshed to reflect any changes.

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Force Update Maven Project

An action in Maven that updates the project's dependencies and rebuilds the project to reflect the latest changes.

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Study Notes

Spring MVC Architecture

  • An application comprises three layers: Presentation, Business Logic, and Database.
  • Presentation Layer: Handles user interaction with the application.
  • Business Logic Layer: Processes data and manages database connectivity.
  • Database Layer: Manages and stores data.
  • A monolithic application combines all three layers into a single application.
  • MVC (Model-View-Controller): A design pattern for developing monolithic applications.
  • Model: Represents application's business logic and database connectivity.
  • View: Represents the presentation layer or user interface.
  • Controller: Acts as an interface between View and Model, handling requests and responses.

Creating a Maven Project

  • To create a Maven project (specifically a web application):

    • Use the maven command-line tool and the archetype-webapp (1.5) option.
    • Avoid skipping the archetype selection step in the process.
    • Use appropriate group ID and artifact ID. Do not check the “run archetype generation interactively” checkbox. Click "Finish".

  • If folders are missing from a created project:

    • Select the project folder
    • Right-click, access Build Path, and open Configure Build Path.
    • Go to Order and Export. Select "All" options and click "Apply and Close"

Spring MVC Project Dependencies

  • MySQL Connector: Needed for database connection.
  • Hibernate Core: Used for database interaction.
  • Java Servlet API: Essential for web application functionality.
  • JSP API (JavaServer Pages API): Enables dynamic content generation.
  • Spring Context: Provides essential Spring functionalities.
  • Spring Web MVC: Required for developing the application itself
  • Lombok: A helpful library for simplifying code.

Updating Maven Project

  • Select the project folder and right-click.
  • Choose "Maven" > "Update Project".
  • Check the "Force Update of Snapshots/Releases" box.
  • Click "OK".
  • Refresh the project if an error occurs.

Web.xml Configuration

  • Location: src/main/webapp/WEB-INF/web.xml
  • Contains <servlet> and <servlet-mapping> tags for configuring the Dispatcher Servlet.

Dispatcher-servlet.xml Configuration

  • Location: Located in src/main/webapp/WEB-INF/Dispatcher-servlet.xml
  • Sets up necessary Spring configurations for use with the application.
  • Contains configuration regarding beans, and external dependencies.

Spring MVC Annotations

  • @Controller: Marks a class as a controller, indicating it handles web requests.
  • @RequestMapping: Maps web requests to specific controller methods. It can be class-level or method level.
  • @RequestParam: Links method parameters to form parameters for requests.

ModelMap

  • ModelMap: Used to map data from the model to the view.

HttpSession

  • HttpSession: Tracks user sessions across the application, usually for authentication and authorization. Created by the DispatcherServlet.

Configure Persistence

  • Configure persistence.xml (Commonly found at): src/main/resources/META-INF/persistence.xml
  • The structure for this file is specified in the example provided.

ViewResolver

<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
  • This configures the view resolver to look for JSP views in the specified folder.

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Spring MVC Notes PDF

Description

This quiz covers the fundamental concepts of Spring MVC architecture, focusing on the three layers: Presentation, Business Logic, and Database. Additionally, it provides insights into creating a Maven web application using the command-line tool.

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