Spring context:component-scan not working with annotated beans - spring

Question

I'm trying to run a simple Spring + Hibernate tutorial => Maven Spring Hibernate annotation example
My beans definition file BeanLocations.xml is like this :
<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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd">
<!-- Database Configuration -->
<import resource="../database/Datasource.xml"/>
<import resource="../database/Hibernate.xml" />
<context:component-scan base-package="com.sample.springhibernate"/>
</beans>
My main method:
public static void main( String[] args )
{
ApplicationContext appContext = new ClassPathXmlApplicationContext("classpath*:BeanLocations.xml");
StockBo stockBo = (StockBo)appContext.getBean("stockBo");
}
I have a defined service with an interface:
public interface StockBo {
public void save(Stock stock);
public void update(Stock stock);
public void delete(Stock stock);
public Stock findByStockCode(String stockCode);
}
And his implementation:
#Service("stockBo")
public class StockBoImpl implements StockBo {
#Autowired
StockDao stockDao;
public void setStockDao(StockDao stockDao){
this.stockDao = stockDao;
}
#Override
public void save(Stock stock) {
stockDao.save(stock);
}
........
There is any problem with this because spring throws a Exception when StockBo)appContext.getBean("stockBo") :
30-oct-2014 15:31:49 org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext#64dc11: display name [org.springframework.context.support.ClassPathXmlApplicationContext#64dc11]; startup date [Thu Oct 30 15:31:49 CET 2014]; root of context hierarchy
30-oct-2014 15:31:49 org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory
INFO: Bean factory for application context [org.springframework.context.support.ClassPathXmlApplicationContext#64dc11]: org.springframework.beans.factory.support.DefaultListableBeanFactory#a3d4cf
30-oct-2014 15:31:49 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory#a3d4cf: defining beans []; root of factory hierarchy
Exception in thread "main" org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'stockBo' is defined
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:387)
Spring not foud my annotated service StockBoo (with #Service("stockBo") )....
What is the problem? How can I ensure that Spring recognize my service with component scan?
FYI: StockBo is in com.sample.springhibernate.bo and StockBoImpl in com.sample.springhibernate.bo.impl

Answer 1

If you turn your log level to DEBUG, you'll more than likely find a line like
DEBUG o.s.b.f.xml.XmlBeanDefinitionReader - Loaded 0 bean definitions from location pattern [classpath*:BeanLocations.xml]
That is, your ClassPathXmlApplicationContext did not find any resources that match classpath*:BeanLocations.xml and therefore didn't load any context.
You'll need to provide a resource location String value that properly identifies and locates the context configuration file.