Main program in java can not open Spring bean configuration file

Question

I just started to learn Spring Framework, installed Eclipse and added Spring and Maven. I made my first program, of course, Hello World but using spring beans. Everything was "by the book", I made some class, let's say Person, and main class that will instantiate it through beans in xml spring beans configuration file. I made beans.xml file right in my project just like in book example, and wrote following code:

package maven.aplikacije.Person;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class App 
{
 public static void main( String[] args )
 {
    ApplicationContext ac = new ClassPathXmlApplicationContext("beans.xml");
    Person helloBean = (Person)ac.getBean("person");
    helloBean.sayHello();
 }
 }

This is a beans.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"
xsi:schemaLocation="http://www.springframework.org/schema/beans      http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id = "person" class = "maven.aplikacije.Person.Person"></bean>

</beans>

However, it does not work. It lists following error (among others):

INFO: Loading XML bean definitions from class path resource [Person/beans.xml] Exception in thread "main" org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from class path resource [Person/beans.xml]; nested exception is java.io.FileNotFoundException: class path resource [Person/beans.xml] cannot be opened because it does not exist

I tried to write

ApplicationContext ac = new ClassPathXmlApplicationContext("Person//beans.xml");

and plenty more different versions but nothing works. Of course, I also defined Person class. :)

Why doesn't program "see" beans.xml file?

Thank you in advance!

If you are starting to learn spring for heavens sake don't use XML config! Learn annotations and JavaConfig. XML config is essentially deprecated these days; there is absolutely no point in learning outdated technologies. — Boris the Spider
Further; please use Java naming conventions. PascalCase is reserved for class names, please use lower case for package names. — Boris the Spider
I just started so I didn't know. Thank you all for useful advice. You are right about both things. I just didn't still found some tutorial on annotations and JavaConfig and naming package should be in lower case. — Biljana M.

jmj jmj · Accepted Answer · 2014-01-26T19:46:38

when you refer it from classpath at Person/beans.xml,

ApplicationContext ac = new ClassPathXmlApplicationContext("Person//beans.xml");

you would need to place beans.xml at following location in your maven project

src/main/resources/Person/beans.xml

if you try to read

ApplicationContext ac = new ClassPathXmlApplicationContext("beans.xml");

then

src/main/resources/beans.xml

or you can put it anywhere and configure maven to place beans.xml file in your classpath with specified namespace

Main program in java can not open Spring bean configuration file

1 Answers