I am new to Spring and AOP. I am trying this simple thing where I have created a custom annotation which when placed before any method should execute some code. This is the annotation I created
// Declares a custom annotation that validates json
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface JsonSchemaAnnotation {
}
Next I created the Spring Aspect class which holds the logic
@Aspect
public class UpdateUIMetadataInterceptor {
@Pointcut("execution(public * com.fico.cardinal.cm.*.*(..))")
public void anyPublicMethod() {
System.out.println("Running");
}
@Before("anyPublicMethod() && @annotation(jsonSchemaAnnotation)")
public void validateJson(ProceedingJoinPoint pjp) throws Throwable {
System.out.println("Running");
}
}
And this is my simple test class
public class ValidationTest {
public static void main(String[] args) {
ApplicationContext context = new ClassPathXmlApplicationContext("spring/configuration.xml");
String jsondata = "{\"id\": \"EXPENSE_REPORT\",\"properties\": {\"transactionType\": \"EXPENSE_REPORT\"},\"sections\": []} ]}";
ValidationTest test = new ValidationTest();
test.jsonValidationTest("dummy", jsondata);
((AbstractApplicationContext) context).close();
}
@JsonSchemaAnnotation
public void jsonValidationTest(String dummy, String jsondata) {
System.out.println("Success");
}
The problem is my spring aop never gets triggered. I have included a bean in my configuration.xml
<aop:aspectj-autoproxy>
<aop:include name="UpdateUIMetadataInterceptor" />
</aop:aspectj-autoproxy>
<bean id="updateUI" class="com.fico.cardinal.cm.interceptor.UpdateUIMetadataInterceptor" />
Can anyone point out what I am missing?
You have several problems with your code:
ValidationTest
object as a bean managed by Spring and not using new <aop:include name="UpdateUIMetadataInterceptor" />
should be <aop:include name="updateUI"/>
; you can actually just stick with <aop:aspectj-autoproxy/>
for simplicity here ProceedingJoinPoint
is not supported for before aspects, so remove it; you can use JoinPoint
instead if you need access to arguments JsonSchemaAnnotation jsonSchemaAnnotation
parameter should be present for validateJson
method of your aspect, as pointed out by frant.hartm I think you need either fully qualified name or a parameter in the method:
FQN:
@Before("anyPublicMethod() && @annotation(your.package.JsonSchemaAnnotation)")
public void validateJson(ProceedingJoinPoint pjp) throws Throwable {
System.out.println("Running");
}
Parameter:
@Before("anyPublicMethod() && @annotation(jsonSchemaAnnotation)")
public void validateJson(ProceedingJoinPoint pjp, JsonSchemaAnnotation jsonSchemaAnnotation ) throws Throwable {
System.out.println("Running");
}
Source: http://docs.spring.io/spring/docs/current/spring-framework-reference/html/aop.html#aop-pointcuts
(and you also need to use the bean, as Dmitry Kuskov pointed out
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.