Spring Boot - AOP After Returning Advice

After Returning Advice runs only after a method executes successfully. It is implemented using the @AfterReturning annotation.
If the method throws an exception, this advice will not execute.

• Used to execute logic after successful method completion.
• Defined using the @AfterReturning annotation in an aspect class.
• Commonly used for logging results, auditing, or monitoring.

Steps to Implement After Returning Advice

Step 1: Create Spring Boot Project

Open Spring Initializr and provide the following details:

• Group: com.after_returning_advice
• Artifact: aop-after-returning-advice-example
• Add dependency: Spring Web

Download the project and extract the ZIP file and import the Project into IDE

Step 2: Add AOP Dependency

Add Spring AOP dependency in pom.xml.

pom.xml

Step 3: Create Model Class

Create package: com.after_returning_advice.model and add Student class to represent student data.

Student class:

Step 4: Create Service Class

Create package: com.after_returning_advice.service and Add StudentService class with a method to add students using name arguments

StudentService class:

Step 5: Create Controller Class

Create package: com.after_returning_advice.controller and add StudentController to handle GET requests and call the service method

StudentController class:

 Step 6: Create Aspect Class

Create package: com.after_returning_advice.aspect and add StudentServiceAspect class.
Define:

• Pointcut expression
• Advice method using @AfterReturning
  This advice runs only after the service method executes successfully. 

StudentServiceAspect class:

Step 7: Run the Application

Run the project as a Spring Boot Application.

For the demo, we are hitting URL with fname as Harry and sname as Potter. In this case, the method will be executed normally.

When we hit URL with fname as Tom, the service method will throw an exception. The After Returning advice will not be executed.

As seen in the output, after returning advice is called after the service method is executed successfully.