Spring- How to use Spring Dependency Injection to write a Standalone Java Application

Question

I want to write a standalone application with IOC, how do I use springs dependency injection in there? I'm using JIdea. There is spring 2.5 support but I want to use spring 3.0 here is the way I tried!

I experience in using Spring MVC we can inject dependencies there in a WebApplicationContext but how do I inject dependencies in a standalone application

I tried this

ApplicationContext context = new ClassPathXmlApplicationContext(new String[] {"com\\ttg\\xmlfile.xml"});

but I cannot see that the dependencies are injected by the beans defined there (in the XML file) I put the above code in the main method and two bean definitions for two Objects,in one Java class's constructor I used the other class's object - which was injected to this object - and called a method on that which will print some thing but it didn't worked I thought that the above code creates all the dependencies and injects them but it doesn't seem like that

How do I properly use Springs IOC, dependency injection in my stand alone app which does not contain a WebApplicationContext?

Please mention steps.

Answer 1

suppose you have:

class Bean1 {
  Bean2 bean2;
}

class Bean2 {
  String data;
}

the context.xml file

<bean id="bean1" class="Bean1">
  <property name="bean2" ref="bean2" />
</bean>

<bean id="bean2" class="Bean2" />

then this should be true

ApplicationContext context = new ClassPathXmlApplicationContext(new String[] {"context.xml"});
Bean1 bean1 = (Bean1) context.getBean("bean1");

// bean1.bean2 should not be null here.