servlet-context.xml

The various components from the above xmls are described as follows:

<annotation-driven />:

• Initialiazes components required for dispatching the requests to our Controllers.
• Register's a RequestMappingHandlerMapping, a RequestMappingHandlerAdapter, and an ExceptionHandlerExceptionResolver in support of processing requests with annotated controller methods using annotations such as @RequestMapping, @ExceptionHandler and others.
• Configures support for new Spring MVC features such as declarative validation with @Valid, HTTP message conversion with @RequestBody/@ResponseBody, formatting Number fields with @NumberFormat etc.

This element should be placed in your DispatcherServlet context (or in your root context if you have no DispatcherServlet context defined)

<context:component-scan>:

• Scans for the classes annotated with @Component, @Service, @Repository and @Controller defined under the base-package and registers their corresponding beans.
• @Component serves as a generic stereotype for any Spring-managed component; whereas, @Repository, @Service, and @Controller serve as specializations of @Component for more specific use cases.

<resources>:

• This tag allows static resource requests following a particular URL pattern to be served by a ResourceHttpRequestHandler from any of a list of Resource location.

• This provides a convenient way to serve static resources from location other than the web application root, including locations on the classpath e.g. <mvc:resources mapping="/resources/**" location="/, classpath:/web-resources/"/>

InternalResourceViewResolver:

• Spring provides different view resolvers to render models in a browser without tying you with a specific view technology.
• Spring enables you to use JSPs, Velocity templates and XSLT views.

InternalResourceViewResolver is one of them.

src/main/webapp/WEB-INF/sping/servlet-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/mvc"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">

    <!-- DispatcherServlet Context: defines this servlet's request-processing 
        infrastructure -->

    <!-- Enables the Spring MVC @Controller programming model -->
    <annotation-driven />

    <!-- Handles HTTP GET requests for /resources/** by efficiently serving 
        up static resources in the ${webappRoot}/resources directory -->
    <resources mapping="/resources/**" location="/resources/" />

    <!-- Resolves views selected for rendering by @Controllers to .jsp resources 
        in the /WEB-INF/views directory -->
    <beans:bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <beans:property name="prefix" value="/WEB-INF/views/" />
        <beans:property name="suffix" value=".jsp" />
    </beans:bean>

    <beans:bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        <beans:property name="driverClassName" value="org.postgresql.Driver" />
        <beans:property name="url"
            value="jdbc:postgresql://localhost:5432/phones" />
        <beans:property name="username" value="postgres" />
        <beans:property name="password" value="1234" />
    </beans:bean>

    <!-- Hibernate 4 SessionFactory Bean definition -->
    <beans:bean id="hibernate4AnnotatedSessionFactory"
        class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <beans:property name="dataSource" ref="dataSource" />
        <beans:property name="annotatedClasses">
            <beans:list>
                <beans:value>com.spring.demo.model.Phone</beans:value>
            </beans:list>
        </beans:property>
        <beans:property name="hibernateProperties">
            <beans:props>
                <beans:prop key="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect
                </beans:prop>
                <beans:prop key="hibernate.show_sql">true</beans:prop>
            </beans:props>
        </beans:property>
    </beans:bean>

    <beans:bean id="phoneDAO" class="com.spring.demo.dao.PhoneDAOImpl">
        <beans:property name="sessionFactory" ref="hibernate4AnnotatedSessionFactory" />
    </beans:bean>
    <beans:bean id="phoneService" class="com.spring.demo.service.PhoneServiceImpl">
        <beans:property name="phoneDAO" ref="phoneDAO"></beans:property>
    </beans:bean>
    <context:component-scan base-package="com.spring.demo" />

    <tx:annotation-driven transaction-manager="transactionManager"/>

    <beans:bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <beans:property name="sessionFactory" ref="hibernate4AnnotatedSessionFactory" />
    </beans:bean>


</beans:beans>