Spring 4, MVC and JPA integration - spring

Question

I'm kinda rusty in spring.
I have a proyect using JPA persitence, and i need to make it so it return JSON on a rest API.
web.xml
<display-name>display name</display-name>
<!-- Spring -->
<context-param>
<description>Spring context file</description>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:/META-INF/spring/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
applicationContext.xml
<?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:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.0.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.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-3.0.xsd">
<context:annotation-config/>
<context:load-time-weaver/>
<!-- escanea las clases del package services buscando componentes -->
<context:component-scan base-package="cl"/>
<tx:annotation-driven transaction-manager="transactionManager"/>
<!-- MYSQL -->
<bean id="datasource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
</bean>
<bean id="jpaDialect" class="org.springframework.orm.jpa.vendor.EclipseLinkJpaDialect">
<!-- <property name="databasePlatform" value="org.eclipse.persistence.platform.database.H2Platform" /> -->
<!-- <property name="showSql" value="true" /> -->
</bean>
<!-- Entity Manager Factory -->
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="datasource"></property>
<property name="persistenceUnitName" value="persistenceUnit"></property>
<property name="jpaDialect" ref="jpaDialect"/>
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.EclipseLinkJpaVendorAdapter"/>
</property>
<!--
<property name="jpaPropertyMap">
<map>
<entry key="eclipselink.weaving" value="false" />
</map>
</property>
-->
</bean>
<!-- Transaccion manager -->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory"></property>
</bean>
<!-- JPA Repositories -->
<jpa:repositories base-package="cl.repositories"></jpa:repositories>
<!-- traductor de excepciones de repo -->
<bean class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor"/>
<!-- Velocity -->
</beans>
Service Class
#Service
public class CalculatorService {
private transient Logger logger = LoggerFactory.getLogger(CalculatorService.class);
#Autowired
RubroRepository rubroRepo;
...
I created a RestController following many guides in internet, but always got problems, like, the autowired to the class CalculatorService dosnt work.
Whats is the best way to include a rest servlet in this application?
Thanks

Answer 1

Well, i figured it out in the end, i was putting the applicationContext.xml outside of the resource folder, so i never had the services bean in place.
it took me a lot of time to figure this out, so i think i may be missing some important log output. I'm only watching tomcat output on this. so any help in this regard would be appreciated.