Review

In the previous section, we have implemented the Java classes and organized them in various layers. In this section, we will write the configuration files, which are mainly XML documents.

Part 1: Introduction and Functional Specs
Part 2: MongoDB setup
Part 3: Java classes
Part 4: XML configuration
Part 5: HTML Files (with AJAX)
Part 6: Running the Application

Configuration

To enable MongoDB repository, including template support, we have to declare the following beans:

a Mongo repository
a Mongo host
a Mongo template
Optionally, we declared an InitMongoService to automatically populate our database with sample data

	<?xml version="1.0" encoding="UTF-8"?>
	<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:p="http://www.springframework.org/schema/p"
	xmlns:c="http://www.springframework.org/schema/c"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mongo="http://www.springframework.org/schema/data/mongo"
	xmlns:util="http://www.springframework.org/schema/util"
	xsi:schemaLocation="
	http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
	http://www.springframework.org/schema/tx
	http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
	http://www.springframework.org/schema/context
	http://www.springframework.org/schema/context/spring-context-3.1.xsd
	http://www.springframework.org/schema/data/mongo
	http://www.springframework.org/schema/data/mongo/spring-mongo-1.0.xsd
	http://www.springframework.org/schema/util
	http://www.springframework.org/schema/util/spring-util-3.1.xsd">

	<context:property-placeholder properties-ref="deployProperties" />

	<!-- Activate Spring Data MongoDB repository support -->
	<mongo:repositories base-package="org.krams.repository" />

	<!-- MongoDB host -->
	<mongo:mongo host="${mongo.host.name}" port="${mongo.host.port}"/>

	<!-- Template for performing MongoDB operations -->
	<bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate"
	c:mongo-ref="mongo" c:databaseName="${mongo.db.name}"/>

	<!-- Service for initializing MongoDB with sample data using MongoTemplate -->
	<bean id="initMongoService" class="org.krams.service.InitMongoService" init-method="init"/>
	</beans>

view raw spring-data.xml hosted with ❤ by GitHub

For MongoDB connection, we've extracted the database properties in a separate file.

	# database properties
	mongo.db.name=spring_mongodb_tutorial
	mongo.host.name=localhost
	mongo.host.port=27017

view raw spring.properties hosted with ❤ by GitHub

Finally, here's our applicationContext.xml file

	<?xml version="1.0" encoding="UTF-8"?>
	<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:p="http://www.springframework.org/schema/p"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
	http://www.springframework.org/schema/context
	http://www.springframework.org/schema/context/spring-context-3.1.xsd
	http://www.springframework.org/schema/mvc
	http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">

	<context:property-placeholder properties-ref="deployProperties" />

	<!-- Activates various annotations to be detected in bean classes -->
	<context:annotation-config />

	<!-- Scans the classpath for annotated components that will be auto-registered as Spring beans.
	For example @Controller and @Service. Make sure to set the correct base-package -->
	<context:component-scan base-package="org.krams" />

	<!-- Configures the annotation-driven Spring MVC Controller programming model.
	Note that, with Spring 3.0, this tag works in Servlet MVC only! -->
	<mvc:annotation-driven />

	<mvc:resources mapping="/resources/**" location="/resources/" />

	<!-- Imports logging configuration -->
	<import resource="trace-context.xml"/>

	<!-- Imports datasource configuration -->
	<import resource="spring-data.xml"/>

	<bean id="deployProperties" class="org.springframework.beans.factory.config.PropertiesFactoryBean"
	p:location="/WEB-INF/spring.properties" />

	</beans>