spring-aop

问题 I am trying to inject behaviour to my bean through the 'Introduction' aspect - but unsuccessful so far. Any help is appreciated. The behaviour to 'introduce': public interface MinCalculator{ public double min(double a,double b); } public class MinCalculatorImpl implements MinCalculator{ public double min(double a,double b){ double result=(a<b)?a:b; return result; } } The implementation class: public class MathsImpl{ public void run(){ System.out.println(" This is me ");} public static void

问题 I am working in a spring,hibernate project and database is oracle. I have DAO layer for persistence related operations. In all my tables, I have create_date and update_date columns representing the timestamp when a row is inserted and updated in the tables respectively. There is a requirement that I have to update the above two mentioned timestamp columns of that particular table for which the request is meant to whenever any insert/update operation happens.For example, If my DAO layer has

问题 I am working in a spring,hibernate project and database is oracle. I have DAO layer for persistence related operations. In all my tables, I have create_date and update_date columns representing the timestamp when a row is inserted and updated in the tables respectively. There is a requirement that I have to update the above two mentioned timestamp columns of that particular table for which the request is meant to whenever any insert/update operation happens.For example, If my DAO layer has

问题 I have followed the steps given in the following spring docs: https://docs.spring.io/spring/docs/4.3.14.RELEASE/spring-framework-reference/html/aop.html#aop-aj-ltw My project is a monolith with modules as such : ApplicationService in module m1. Child module m2 with parent m1.(m1 has a dependency on m2) aop.xml file in m1/WebContent/META-INF/aop.xml as follows : <!DOCTYPE aspectj PUBLIC "-//AspectJ//DTD//EN" "http://www.eclipse.org/aspectj/dtd/aspectj.dtd"> <aspectj> <weaver> <!-- only weave

问题 Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.aop.config.internalAutoProxyCreator': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/aspectj/lang

问题 Is that possible to define Spring AOP aspect to Spring JDBC ? To be specific, I am trying to setup a logger for NamedParameterJdbcTemplate to log SQL queries. Below is my XML configuration. <aop:config> <aop:aspect id="aspect4" ref="sqlLoggingInterceptor"> <aop:pointcut expression="execution(* org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate..*(..))" id="pointcut3" /> <aop:around pointcut-ref="pointcut3" method="profile" /> </aop:aspect> </aop:config> And below is my

问题 How I can provide a timeout execution to a Spring AOP Aspect ? The logger method of MyAspect shouldn't take more time execution than 30 seconds, if not i would want to stop the method execution. How i can do this ? MyAspect Code : @Aspect @Component public class MyAspect { @Autowired private myService myService; @AfterReturning(pointcut = "execution(* xxxxx*(..))", returning = "paramOut") public void logger(final JoinPoint jp, Object paramOut){ Event event = (Event) paramOut; myService.save

问题 I want to catch exceptions thrown by classes implementing Processor interface. In aspect I need an access to processor, which throws the exception. I define following pointcut: @Pointcut("target(some.package.Processor) && args(message)") public void processor(Message message) { } And aspect: @AfterThrowing(pointcut="processor(message)", throwing="ex") public void onExceptionInProcessor(Processor target, Exception ex, Message message) { // code skipped } However, I get following exception:

问题 Lets consider following bean: @Service @Scope(value = "prototype", proxyMode = ScopedProxyMode.INTERFACES) public class MyBeanB implements MyBeanBInterface { private static final AtomicLong COUNTER = new AtomicLong(0); private Long index; public MyBeanB() { index = COUNTER.getAndIncrement(); System.out.println("constructor invocation:" + index); } @Transactional @Override public long getCounter() { return index; } } and consider 2 different usages: USAGE 1: @Service public class MyBeanA {

问题 I am learning AOP spring and trying out some examples. Regarding @AfterReturning,what i have understand is that the method is called only if the target is returned successfully and which match the pointcut. However in my case as shown below i have a pointcut that defines all method that returns a String only but it is calling all the void method and also the method which return a String. My Advice: @AfterReturning(value= "execution(* com.aop..CustomerServiceImpl.*(..))", returning= "string")