Spring online training

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Introduction

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Introduction about spring

The net framework of springtime is a well-designed web MVC framework, which offers an excellent option to net frameworks like Struts or other web frameworks that are popular or finished engineered.

Spring offers a suitable API to interpret technology-specific exceptions (thrown by JDBC, Hibernate, or JDO, as an example) into consistent, unchecked exceptions.

Particularly compared to EJB containers, as an example, lightweight Ioc containers are generally lightweight. That is valuable for installing and developing programs on computers with limited memory and CPU resources.

Architectural benefits of Spring

Spring can effectively organize your middle tier objects, whether or not you choose to use EJB. Spring takes care of plumbing that would be left up to you if you use only Struts or other frameworks geared to particular J2EE APIs. And while it is perhaps most valuable in the middle tier, Spring's configuration management services can be used in any architectural layer, in whatever runtime environment.

Architectural benefits of Spring

Spring can eliminate the proliferation of Singletons seen on many projects. In my experience, this is a major problem, reducing testability and object orientation.

Spring can eliminate the need to use a variety of custom properties file formats, by handling configuration in a consistent way throughout applications and projects. Ever wondered what magic property keys or system properties a particular class looks for, and had to read the Javadoc or even source code? With Spring you simply look at the class's JavaBean properties or constructor arguments. The use of Inversion of Control and Dependency Injection (discussed below) helps achieve this simplification.

Architectural benefits of Spring

Spring can facilitate good programming practice by reducing the cost of programming to interfaces, rather than classes, almost to zero.

Spring is designed so that applications built with it depend on as few of its APIs as possible. Most business objects in Spring applications have no dependency on Spring.

Course description

 Introduction to Spring What is Spring? Overview of the Spring

Framework Spring Philosophies Spring Documentation Java 5 Language

Features

A First Look at Spring A Simple Example Wiring Beans Configuring a Properties

File Schema-Based

Configuration

Course description

 Beans and Containers Spring Containers Spring Configuration File Spring Beans Using the Container The Bean Factory Interface Singleton vs. Prototype Bean Naming Dependency Injection Setter Injection Constructor Injection

The Application Context

The Application Context Interface

Accessing Application Components

Accessing Resources Internationalization with

Message Source Application Events

Course description

Data Validation and Conversion

The Validator Interface The Errors Interface The ValidationUtils Class Validator Example Testing the Validator Property Editors Custom Property Editors

Aspect-Oriented Programming

Aspect-Oriented Programming

AOP Concepts AOP Proxies The AOP Alliance Types of Advice AOP Example Introductions

Course description

Using JDBC with Spring

A Simpler Approach Working with the

HSQLDB Database The JdbcTemplate Class Exception Translation Updating with the

JdbcTemplate Queries using the

JdbcTemplate Mapping Results to Java

Objects

Using Hibernate with Spring

What is Hibernate? Hibernate Sessions The Hibernate Template Sample Class and Mapping

File Creating and Saving a New

Entity Locating an Existing Entity Updating an Existing Entity Hibernate Query Language Executing Queries

Benefits of spring

Works on POJOs. Hence easier for dependency injection / injection of test data.

With the Dependency Injection(DI) approach, dependencies are explicit and evident in constructor or JavaBeans properties.

Enhances modularity. Provides more readable codes.

Provides loose coupling between different modules.

Disadvantages of spring

Complex: One of the major criticisms faced by the Spring framework is that it is complex! No so clear focus, more than 2400 classes, 49 other tools and tons of the other things make it complicated for the developers.

Longer Learning Curve: If you’re a newbie developer, it would be quite difficult for you to learn Spring framework. The main reason behind this is a whole host of new programming methods and detailing require understanding how to set up the Spring XML configuration file.

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