How to handle same return type of beans in spring boot?

When you have multiple beans of the same type in Spring Boot and need to handle them, you can use the @Qualifier annotation to specify which bean should be injected. Here’s how to manage this:

@Configuration

public class AppConfig {

    @Bean

    @Qualifier("bean1")

    public MyBean myBean1() {

        return new MyBeanImpl1();

    }

    @Bean

    @Qualifier("bean2")

    public MyBean myBean2() {

        return new MyBeanImpl2();

    }

}

Use Primary Beans:

If one bean is the default choice, annotate it with @Primary.

@Bean

@Primary

public MyBean defaultMyBean() {

    return new MyBeanImpl1();

}

@Bean

public MyBean secondaryMyBean() {

    return new MyBeanImpl2();

}

With @Primary, you don’t need to use @Qualifier unless you specifically want the other bean.