Param in property file confusion

[tcstcs]

I have config file

<bean id="propertyPlaceholderConfigurer"
class="org.springframework.beans.factory.config.Pr opertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:db.properties</value>
</list>
</property>
</bean>

<bean id="loadConfig" class="Spring.LoadConfigFileTest">
<property name="user" value="${ssss}"/>
</bean>
</beans>

My db.properties looks like

user=TR
pwd=TR

I have included a property from a file which is not present in .proeprty file. When i load the config file and refer to that property "user", its not throwing any errors. It prints the vale us "${ssss}".

public class LoadConfigFileTest{

private String user;

public String getUser() {
return user;
}

public void setUser(String user) {
this.user = user;
}

public static void main(String[] args)
{
Resource resource = new FileSystemResource("./spring-config.xml");
BeanFactory beanFactory = new XmlBeanFactory(resource);
LoadConfigFileTest loadConfig = (LoadConfigFileTest)beanFactory.getBean("loadConfi g");
System.out.println("Loaded---"+loadConfig.getUser());
}
}

Ideally i should get an exception that the property being referred is not present. So what wrong?

[dkarr]

References to nonexistent properties do not result in exceptions.

You might consider using the "@Required" annotation on the instance variable or setter. Perhaps that will work. Alternatively, you could define a @PostConstruct method to verify your settings.

[tcstcs]

Thanks. Even if i refer to existing property from file, its not picking the value it shows {user}. Why its happening?

[dkarr]

Elaborate. Show details.