public class HelloService {
public void sayHello(String name) {
System.out.println("Hello, " + name);
}
}
@Interceptor
public class LoggingInterceptor {
@AroundInvoke
public Object logMethod(InvocationContext context) throws Exception {
System.out.println("Before calling method: " + context.getMethod().getName());
Object result = context.proceed();
System.out.println("After calling method: " + context.getMethod().getName());
return result;
}
}
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/beans_2_1.xsd"
bean-discovery-mode="all">
<interceptors>
<class>com.example.LoggingInterceptor</class>
</interceptors>
</beans>
@InterceptorBinding
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE, ElementType.METHOD})
public @interface Loggable {
}
@Loggable
public class HelloService {
public void sayHello(String name) {
System.out.println("Hello, " + name);
}
}
