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Spring - Using @ComponentScan#includeFilters to scan non component classes based on annotations

[Last Updated: Dec 22, 2023]

Following example shows how to use @ComponentScan#includeFilters attribute along with @ComponentScan.Filter=FilterType.ANNOTATION to scan non-component classes based on user defined annotation. The annotation class is specified by @Filter#classes attribute.

Example

The annotation

package com.logicbig.example;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
public @interface IncludeInScan {
  String value() default "";
}

Non-component class using the annotation

package com.logicbig.example;

@IncludeInScan
public class OrderService {

  public void placeOrder(String item) {
      System.out.printf("Retail order placed. Item: %s%n", item);
  }
}

Another component class

@Component
public class Buyer {
  @Autowired
  private OrderService orderService;

  public void buySomething() {
      orderService.placeOrder("Laptop");
  }
}

Main configuration class

package com.logicbig.example;

import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.FilterType;

@Configuration
@ComponentScan(includeFilters = @ComponentScan.Filter(
      type = FilterType.ANNOTATION, classes = {IncludeInScan.class}))
public class OnlineOrderApp {

  public static void main(String... strings) {
      AnnotationConfigApplicationContext context =
              new AnnotationConfigApplicationContext(OnlineOrderApp.class);
      System.out.println("-- Spring container started and is ready --");
      Buyer buyer = context.getBean(Buyer.class);
      buyer.buySomething();
  }
}

Output

-- Spring container started and is ready --
Retail order placed. Item: Laptop

Example Project

Dependencies and Technologies Used:

  • spring-context 6.1.2 (Spring Context)
     Version Compatibility: 4.2.0.RELEASE - 6.1.2Version List
    ×

    Version compatibilities of spring-context with this example:

    • 4.2.0.RELEASE
    • 4.2.1.RELEASE
    • 4.2.2.RELEASE
    • 4.2.3.RELEASE
    • 4.2.4.RELEASE
    • 4.2.5.RELEASE
    • 4.2.6.RELEASE
    • 4.2.7.RELEASE
    • 4.2.8.RELEASE
    • 4.2.9.RELEASE
    • 4.3.0.RELEASE
    • 4.3.1.RELEASE
    • 4.3.2.RELEASE
    • 4.3.3.RELEASE
    • 4.3.4.RELEASE
    • 4.3.5.RELEASE
    • 4.3.6.RELEASE
    • 4.3.7.RELEASE
    • 4.3.8.RELEASE
    • 4.3.9.RELEASE
    • 4.3.10.RELEASE
    • 4.3.11.RELEASE
    • 4.3.12.RELEASE
    • 4.3.13.RELEASE
    • 4.3.14.RELEASE
    • 4.3.15.RELEASE
    • 4.3.16.RELEASE
    • 4.3.17.RELEASE
    • 4.3.18.RELEASE
    • 4.3.19.RELEASE
    • 4.3.20.RELEASE
    • 4.3.21.RELEASE
    • 4.3.22.RELEASE
    • 4.3.23.RELEASE
    • 4.3.24.RELEASE
    • 4.3.25.RELEASE
    • 4.3.26.RELEASE
    • 4.3.27.RELEASE
    • 4.3.28.RELEASE
    • 4.3.29.RELEASE
    • 4.3.30.RELEASE
    • 5.0.0.RELEASE
    • 5.0.1.RELEASE
    • 5.0.2.RELEASE
    • 5.0.3.RELEASE
    • 5.0.4.RELEASE
    • 5.0.5.RELEASE
    • 5.0.6.RELEASE
    • 5.0.7.RELEASE
    • 5.0.8.RELEASE
    • 5.0.9.RELEASE
    • 5.0.10.RELEASE
    • 5.0.11.RELEASE
    • 5.0.12.RELEASE
    • 5.0.13.RELEASE
    • 5.0.14.RELEASE
    • 5.0.15.RELEASE
    • 5.0.16.RELEASE
    • 5.0.17.RELEASE
    • 5.0.18.RELEASE
    • 5.0.19.RELEASE
    • 5.0.20.RELEASE
    • 5.1.0.RELEASE
    • 5.1.1.RELEASE
    • 5.1.2.RELEASE
    • 5.1.3.RELEASE
    • 5.1.4.RELEASE
    • 5.1.5.RELEASE
    • 5.1.6.RELEASE
    • 5.1.7.RELEASE
    • 5.1.8.RELEASE
    • 5.1.9.RELEASE
    • 5.1.10.RELEASE
    • 5.1.11.RELEASE
    • 5.1.12.RELEASE
    • 5.1.13.RELEASE
    • 5.1.14.RELEASE
    • 5.1.15.RELEASE
    • 5.1.16.RELEASE
    • 5.1.17.RELEASE
    • 5.1.18.RELEASE
    • 5.1.19.RELEASE
    • 5.1.20.RELEASE
    • 5.2.0.RELEASE
    • 5.2.1.RELEASE
    • 5.2.2.RELEASE
    • 5.2.3.RELEASE
    • 5.2.4.RELEASE
    • 5.2.5.RELEASE
    • 5.2.6.RELEASE
    • 5.2.7.RELEASE
    • 5.2.8.RELEASE
    • 5.2.9.RELEASE
    • 5.2.10.RELEASE
    • 5.2.11.RELEASE
    • 5.2.12.RELEASE
    • 5.2.13.RELEASE
    • 5.2.14.RELEASE
    • 5.2.15.RELEASE
    • 5.2.16.RELEASE
    • 5.2.17.RELEASE
    • 5.2.18.RELEASE
    • 5.2.19.RELEASE
    • 5.2.20.RELEASE
    • 5.2.21.RELEASE
    • 5.2.22.RELEASE
    • 5.2.23.RELEASE
    • 5.2.24.RELEASE
    • 5.2.25.RELEASE
    • 5.3.0
    • 5.3.1
    • 5.3.2
    • 5.3.3
    • 5.3.4
    • 5.3.5
    • 5.3.6
    • 5.3.7
    • 5.3.8
    • 5.3.9
    • 5.3.10
    • 5.3.11
    • 5.3.12
    • 5.3.13
    • 5.3.14
    • 5.3.15
    • 5.3.16
    • 5.3.17
    • 5.3.18
    • 5.3.19
    • 5.3.20
    • 5.3.21
    • 5.3.22
    • 5.3.23
    • 5.3.24
    • 5.3.25
    • 5.3.26
    • 5.3.27
    • 5.3.28
    • 5.3.29
    • 5.3.30
    • 5.3.31
    • Compatible Java Version: 17+
    • 6.0.0
    • 6.0.1
    • 6.0.2
    • 6.0.3
    • 6.0.4
    • 6.0.5
    • 6.0.6
    • 6.0.7
    • 6.0.8
    • 6.0.9
    • 6.0.10
    • 6.0.11
    • 6.0.12
    • 6.0.13
    • 6.0.14
    • 6.0.15
    • 6.1.0
    • 6.1.1
    • 6.1.2

    Versions in green have been tested.

  • JDK 17
  • Maven 3.8.1

Using @ComponentScan#includeFilters with FilterType Annotation Select All Download
  • spring-component-scan-include-based-on-annotation
    • src
      • main
        • java
          • com
            • logicbig
              • example
                • OrderService.java

    See Also