In this section, we will learn different types of processes to configure the DI. The following diagram is a high-level view of how the configuration process works in Spring:

As per the preceding diagram, the Spring container is responsible for creating the bean in your application and building relationships between those beans via the DI pattern; however, as we discussed earlier, it's the developer's responsibility to tell the Spring container, through the metadata, how to create beans and how to wire them together.

The following are three techniques to configure the metadata of your application:

• XML-based configuration: An explicit configuration
• Java-based configuration: An explicit configuration
• Annotation-based configuration: An implicit configuration

In Spring Framework, the preceding three types of configuration mechanisms are available, but you must use one of the configuration processes to wire your bean. In the next section, we will see each of the configuration techniques in detail with examples, and also see which technique in each situation or condition is more suitable than others; however, you can use any technique or approach that suits you best.

Let's now see the DI pattern with an XML-based configuration in detail.