[Java] Spring DI ③

What are you doing with DI?

Component scan

[Annotation to be scanned]

Instance creation and injection

public class DependencyInjection{
    //Create an instance of each class
    private SampleComponent component = new SampleComponent();
    private SampleService service = new SampleService();
    //Getter for SampleComponent instance
    public static SampleComponent getSampleComponent(){
        return component;
    //Getter for SampleService instance
    public static SampleService getSampleService(){
        return service;

So how do you implement it?

Annotation base


JavaConfig + annotation

xml based

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