Spring console application configured using annotations

Question

I want to create spring console application (running from command line with maven for example: mvn exec:java -Dexec.mainClass="package.MainClass").

Is this application I want to have some kind of services and dao layers. I know how to do it for a web application but I have not found any information on how to do in case of a console application (leter maybe with Swing).

I'm trying to create something like:

public interface SampleService {  public String getHelloWorld(); }   @Service public class SampleServiceImpl implements SampleService {  public String getHelloWorld() {   return "HelloWorld from Service!";  } }  public class Main {  @Autowired  SampleService sampleService;  public static void main(String [] args) {   Main main = new Main();   main.sampleService.getHelloWorld();  } } 

Is it possible? Can I find somewhere an example of how to do it?

Answer 1

Take a look at the Spring Reference, 3.2.2 Instantiating a container.

In order to use Spring in console application you need to create an instance of ApplicationContext and obtain Spring-managed beans from it.

Creating a context using XML config is described in the Reference. For completely annotation-based approach, you can do someting like this:

@Component // Main is a Spring-managed bean too, since it have @Autowired property public class Main {     @Autowired SampleService sampleService;     public static void main(String [] args) {         ApplicationContext ctx =              new AnnotationConfigApplicationContext("package"); // Use annotated beans from the specified package          Main main = ctx.getBean(Main.class);         main.sampleService.getHelloWorld();     } }