Spring Framework for Beginners

Explore the Spring Framework and its role in enterprise Java development, focusing on dependency injection, beans, and Spring MVC, and contrast with Spring Boot.

Learn to set up a Maven-based Spring project in Eclipse, add Spring Core and Spring JCL dependencies, and configure an application context with a sample bean.

Create a beans.xml file defining a point bean with x and y properties, load it with a classpath application context, and print the bean's x and y values.

Examine the core theory of Spring, including dependency injection as a form of inversion of control, and how the Spring container wires and manages bean lifecycles.

Learn how to configure Spring beans using constructor arguments, map values by type and order, handle defaults, and understand bean attributes like class and id in XML definitions.

Explore inner beans and the ref tag in Spring, comparing constructor versus setter injection and using the property tag to configure complex types like color and weight.

Explore how idref tags in spring map beans by id to properties, compare id vs name, and understand validation and runtime errors when references cannot be resolved.

Learn how id ref and aliases work in Spring, including id ref versus ref tag behavior, and how the alias element provides multiple validated names for a bean.

Learn collection injection in spring by aliasing beans and initializing lists, sets, and maps with value and entry tags, then print the results from the application start.

Spring framework for beginners: discover autowiring in Spring XML, including by name, by type, and by constructor, with no autowiring and deprecated auto detect, using customer and color beans.

Learn how Spring beans are wired, and compare singleton and prototype scopes, including constructor vs setter injection and auto wiring considerations for clearer bean management.

Understand spring bean scopes, including singleton, prototype, request, session, and global session, and how lifecycle differs for stateful versus stateless beans in a web context.

Learn to set up a Spring mvc web app using a mavin project, configure a controller with request mapping on Tomcat, and render a hello world response.

Explore how the Spring MVC framework uses the model-view-controller pattern to separate data, UI, and logic, with models, views, controllers, and the dispatcher servlet.

Explore how the DispatcherServlet orchestrates web requests in Spring MVC, coordinating handler mapping, controllers, model and view, and how the ViewResolver applies prefix and suffix to render views.

Learn how the Spring model passes data from controllers to views via the dispatcher servlet, using model, modelMap, and modelAndView with addAttribute, mergeAttributes, and hello world examples.

Learn the basics of JSP in the spring beginner course. Pass a string from a controller to a view, embed Java in HTML with script blocks, and print hello world.

Explore jsp theory and declarations by examining how Java Server Pages interleave HTML and Java code, use script and declaration tags, and access request data.

Explore JSP directives and implicit objects in Spring development, including page, include, and taglib directives and the use of request, response, out, and session.

Explore iterating over lists in JSP with the for each tag, passing a names list through the model and rendering each item in the view.

Explore the Spring REST API basics, learn how REST represents a decoupled client–server architecture, and build a basic Spring hello world endpoint using REST controller and ResponseEntity.

This lesson covers building a Spring rest api by creating a get endpoint with a path variable to fetch a class's student from a data list and testing with Postman.

Explore using get, delete, and put methods in a Spring REST controller to manage a classroom list and its students, and test changes with Postman.

Configure spring logging with log4j by adding the dependency, creating log4j properties, and directing output to console and files; set levels and patterns and use the logger in code.

Gain a solid understanding of Spring, its core concepts, including controllers, mapping, and the dispatcher servlet. Next, learn Hibernate, Spring Data, and Spring Boot, then build a portfolio project.