Spring Tutorials

Spring Tutorial

Introduction of Spring Framework

Advantages and Disadvantages of Spring Framework

Features of Spring Framework

Basic concept of Spring Framework

Architecture of Spring Framework

Modules of Spring Framework

Goal of Spring Framework

Create Application of Spring without any IDE

Create Application of Spring in Eclipse IDE

Create Application of Spring in MYEclipse IDE

Important JAR of Spring Framework

IOC container in Spring Framework

Bean and Applicationcontext container in Spring Framework

Example of Spring BeanFactory Container in Spring Framework

Example of Spring ApplicationContext Container in Spring Framework

Bean in Spring Framework

Lifecycle of Bean in Spring Framework

Scope of Bean in Spring Framework

Autowiring in Spring Framework

Dependency Injection in Spring Framework

Constructor-based Dependency Injection Example in Spring Framework

Setter-based Dependency Injection Example in Spring Framework

Introduction of AOP in Spring Framework

Core concept and Goal of AOP in Spring Framework

AOP Proxies in Spring framework

XML Schema Based AOP in Spring Framework

AOP Xml based Configuration Example in Spring Framework

Example of Declaring AOP Advices in Spring Framework

AOP AspectJ Annotation with Example in Spring Framework

Declaring an aspect and pointcut using Annotation in Spring Framework

Declaring AOP Advices using Annotation Example in Spring Framework

DAO support in Spring Framework

Introduction of Spring JDBC Framework in Spring Framework

Introduction of Spring JdbcTemplate in Spring Framework

Example of Spring JdbcTemplate class in Spring framework

Example of Executing SQL statements in Spring Framework

Example of Executing DDL statements in Spring Framework

SQL Stored Procedure in Spring Framework

Example of NamedParameterJdbcTemplate in Spring Framework

Example of RowMapperJdbcTemplate in Spring Framework

Introduction of ORM Framework in Spring Framework

Integration of Spring with Hibernate in Spring Framework

Integration of Spring with JPA in Spring Framework

Introduction of Spring Expression Language (SpEL) in Spring Framework

Example of Spring Expression Language (SpEL) in Spring framework

Example of Spring EL in XML and Annotation in Spring Framework

Language Reference with SpEL in Spring Framework

Operators in Spring Expression Language(SpEL) in Spring Framework

Variable in Spring Expression Language(SpEL) in Spring Framework

Introduction of Spring Framework Transaction Management in Spring Framework

Spring Framework Transaction Abstraction

Spring Declarative Transaction Management in Spring Framework

Spring Programmatic Transaction Management in Spring Framework

Introduction of Spring OXM (Object XML Mapping) in Spring Framework

Integration of Spring with Jaxb Example in Spring framework

Example of Spring with Xstream in Spring Framework

Example of Spring with Castor in Spring Framework

Remote Method Invocation(RMI) in Spring Framework

Spring and RMI Integration with Example in Spring Framework

Example of Spring and Httpinvoker in Spring Framework

Example of Spring and Hessian in Spring Framework

Integration of Spring with JMS in Spring Framework

Introduction of Webservice in Spring Framework

Spring Web Services in Spring Framework

Web Services with Jax-WS in Spring framework

Exposing and Exporting servlet-based Web Services using JAX-WS in Spring Framework

Accessing Web Services using JAX-WS in Spring Framework

Introduction of JMS in Spring Framework

JMS Messaging Models in Spring Framework

Using Spring JMS in Spring Framework

Sending and Receiving a Message Using JMS API in Spring Framework

Introduction of JMX (Java Management Extension) in Spring Framework

Integrating Beans with JMX in Spring Framework

Creating a MBeanServer in Spring Framework

Introduction Java Mail with Spring in Spring Framework

Example of Java Mail with spring in Spring Framework

Introduction of EJB(Enterprise JavaBeans) in Spring Framework

Introduction of EJB(Enterprise JavaBeans) Integration in Spring Framework

Integration of Spring With Struts 2 Example in Spring Framework

Spring MVC

Spring MVC

Spring BeanFactory Container
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A BeanFactory is essentially nothing more than the interface for an advanced factory capable of maintaining a registry of different beans and their dependencies.

OR

A BeanFactory is like a factory class that contains a collection of beans. The BeanFactory holds Bean Definitions of multiple beans within itself and then instantiates the bean whenever asked for by clients. BeanFactory is able to create associations between collaborating objects as they are instantiated. This removes the burden of configuration from bean itself and the beans client.

BeanFactory also takes part in the life cycle of a bean, making calls to custom initialization and destruction methods. This is the simplest container providing basic support for DI and defined by the org.springframework.beans.factory.BeanFactory interface. The BeanFactory and related interfaces, such as BeanFactoryAware, InitializingBean, DisposableBean, are still present in Spring for the purposes of backward compatibility with the large number of third-party frameworks that integrate with Spring.

Resource resource = new FileSystemResource("beans.xml");
BeanFactory factory = new XmlBeanFactory(resource);
HelloJava obj = (HelloJava) factory.getBean("hellojava");

There are a number of implementations of the BeanFactory interface that come supplied straight out-of-the-box with Spring. The most commonly used BeanFactory implementation is the XmlBeanFactory class. This container reads the configuration metadata from an XML file and uses it to create a fully configured system or application. The code of xml format as given above.

Spring ApplicationContext

ApplicationContext is an interface for providing configuration information to an application. There are multiple classes provided by springframework that implements this interface and helps us use configuration information in applications. ApplicationContext provides standard bean factory lifecycle capabilities.

An important capability which we will be using in below code example is, class implementing ApplicationContext should scan for ApplicationContextAware beans and invoke setApplicationContext by passing an implementation of its instance.

Spring ApplicationContext container

This container adds more enterprise-specific functionality such as the ability to resolve textual messages from a properties file and the ability to publish application events to interested event listeners. This container is defined by the org.springframework.context.ApplicationContext interface.

The ApplicationContext container includes all functionality of the BeanFactory container, so it is generally recommended over the BeanFactory. BeanFactory can still be used for lightweight applications like mobile devices or applet based applications where data volume and speed is significant. The most commonly used ApplicationContext implementations are as follows:

  1. FileSystemXmlApplicationContext: This container loads the definitions of the beans from an XML file. Here you need to provide the full path of the XML bean configuration file to the constructor.
  2. ClassPathXmlApplicationContext: This container loads the definitions of the beans from an XML file. Here you do not need to provide the full path of the XML file but you need to set CLASSPATH properly because this container will look bean configuration XML file in CLASSPATH.
  3. WebXmlApplicationContext: This container loads the XML file with definitions of all beans from within a web application.

A sample code for application context like this.

 

ApplicationContext context = 
new FileSystemXmlApplicationContext("beans.xml");
HelloJava obj = (HelloJava) context.getBean("hellojava");
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