How Spring manages the properties file

Spring's management of properties files is really easy.

Declare a class inside the app-config.xml.

<bean id= "Propertyconfigurer"
class= "Org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" >
<property name= "Locations" >
<list>
<value>classpath:epublish-config.properties</value>
</list>
</property>

</bean>

This class is used by spring to manage properties files.

The properties file is placed in the resource below SRC.

There's only one line in my properties.

Authentication.control = FALSE

Now I want one of my Java class variables to get the value in this properties file

<bean id= "service" class= "service" >
<property name= "Authenticationcontroller" >
<value>${authentication.control}</value>
</property>
</bean>

In the Service.java.

Private String Authenticationcontroller;

Public String Getauthenticationcontroller () {
return authenticationcontroller;
}

public void Setauthenticationcontroller (String authenticationcontroller) {
This.authenticationcontroller = Authenticationcontroller;
}

Because I was going to call in the subclass Childservice,

So

<bean id= "Childservice" class= "Childservice" parent= "service"/>

Be sure to tell Spring who is the father of your child class to call, otherwise, only null.