@Around advice for full control in Spring Boot - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define an @Around advice method signature.

Spring Boot

@Around("execution(* com.example.service.*.*(..))")
public Object [1](ProceedingJoinPoint joinPoint) throws Throwable {
    return joinPoint.proceed();
}

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AaroundHandler

BaroundAdvice

ChandleAround

DadviceMethod

Attempts:

3 left

💡 Hint

Common Mistakes

Using invalid method names or missing the ProceedingJoinPoint parameter.

The method name can be any valid name, but here aroundAdvice is used as a clear example.

2fill in blank

medium

Complete the code to proceed with the original method execution inside @Around advice.

Spring Boot

Object result = joinPoint.[1]();

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Aproceed

Bexecute

Crun

Dcall

Attempts:

3 left

💡 Hint

Common Mistakes

Using methods like 'execute' or 'run' which do not exist on ProceedingJoinPoint.

The proceed() method continues the execution of the original method.

3fill in blank

hard

Fix the error in the @Around advice to correctly catch exceptions and rethrow them.

Spring Boot

try {
    Object result = joinPoint.[1]();
    return result;
} catch (Throwable e) {
    throw e;
}

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Acall

Brun

Cproceed

Dexecute

Attempts:

3 left

💡 Hint

Common Mistakes

Using non-existent methods like 'run' or 'execute' causing compile errors.

Only proceed() correctly continues the method execution and can throw Throwable.

4fill in blank

hard

Fill both blanks to log before and after the method execution in @Around advice.

Spring Boot

System.out.println("[1] method start");
Object result = joinPoint.[2]();
System.out.println("[1] method end");
return result;

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AaroundAdvice

Bproceed

Cexecute

Dhandle

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong method names for logging or proceeding.

Use the method name 'aroundAdvice' for logging and 'proceed' to continue execution.

5fill in blank

hard

Fill all three blanks to modify the return value in @Around advice by appending a string.

Spring Boot

Object result = joinPoint.[1]();
if (result instanceof String) {
    result = ((String) result) [2] " - modified";
}
return [3];

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Aproceed

B+

Cresult

Dconcat

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'concat' method incorrectly or returning the wrong variable.

Use proceed() to run the method, + to append strings, and return the modified result.