spring-aop

问题 @ControllerAdvice public class GlobalExceptionHandler { @ExceptionHandler(NoHandlerFoundException.class) public ResponseEntity<Error> handle(NoHandlerFoundException ex){ String message = "HTTP " + ex.getHttpMethod() + " for " + ex.getRequestURL() + " is not supported."; Error error = new Error(HttpStatus.NOT_FOUND.value(), message); return new ResponseEntity<Error>(error, HttpStatus.NOT_FOUND); } } I am using @ControllerAdvice with @ExceptionHandler. I need to get the exception occurred

问题 @ControllerAdvice public class GlobalExceptionHandler { @ExceptionHandler(NoHandlerFoundException.class) public ResponseEntity<Error> handle(NoHandlerFoundException ex){ String message = "HTTP " + ex.getHttpMethod() + " for " + ex.getRequestURL() + " is not supported."; Error error = new Error(HttpStatus.NOT_FOUND.value(), message); return new ResponseEntity<Error>(error, HttpStatus.NOT_FOUND); } } I am using @ControllerAdvice with @ExceptionHandler. I need to get the exception occurred

问题 I use AOP to separate monitor from the bussiness logic. But when I use junit to test my aop code I found that AOP are not triggered when method B is executed but are triggered when method A is executed. And method B calls method A. my pseudocode likes below : @Aspect public class TimeMonitor { @Pointcut("execution( * MainClass.A(..))") public void pointA(); @Around("pointA()") Object monitorA(ProceedingJoinPoint jp ){ try{ jp.proceed(); }catch(Exception e){ logger.error("failed to execute A

问题 <aop:config> <aop:pointcut expression="exection(* info.fdlife.service.UserService.*(..))" id="aopProductUserService" /> <aop:advisor advice-ref="txAdvice" pointcut-ref="aopProductUserService" /> </aop:config> Here is some of applicationContext.xml (Spring Framework), info.fdlife.service.UserService is a interface. I get some error message: Caused by: java.lang.IllegalArgumentException: Pointcut is not well-formed: expecting ')' at character position 11 exection(* info.fdlife.service

问题 <aop:config> <aop:pointcut expression="exection(* info.fdlife.service.UserService.*(..))" id="aopProductUserService" /> <aop:advisor advice-ref="txAdvice" pointcut-ref="aopProductUserService" /> </aop:config> Here is some of applicationContext.xml (Spring Framework), info.fdlife.service.UserService is a interface. I get some error message: Caused by: java.lang.IllegalArgumentException: Pointcut is not well-formed: expecting ')' at character position 11 exection(* info.fdlife.service

问题 I want to know what actually happens when you annotate a method with @Transactional ? Of course, I know that Spring will wrap that method in a Transaction. But, I have the following doubts: I heard that Spring creates a proxy class ? Can someone explain this in more depth . What actually resides in that proxy class? What happens to the actual class? And how can I see Spring's created proxied class I also read in Spring docs that: Note: Since this mechanism is based on proxies, only 'external'

问题 Problem: I want to call a method by hand using AOP when a certain method get called with a specific type argument which has a field with a specific annotation. Right now I am able to do this in two different way : 1. ' call a method by hand using AOP when a certain method get called with a specific type argument' . Then fetch the annotated field via reflection from the joinpoint. 2.or annotate the type itself with the fieldnames as annotation value But besides these how should I put these in

问题 I am trying to learn Spring AOP programming using Spring 5. I am going through online materials. I came to know that AOP is a concept, similar to OOP; and with AOP,OOPs becomes more powerful. Now, I am trying to do some hands-on coding for AOP with Spring framework, version 5. I am going to use maven as the build tool. I am not clear on what are the various dependencies that we have to use in pom.xml, for example do we need to use: spring-aop , spring-aspects , aspectj etc. Can anyone guide

问题 I am trying to learn Spring AOP programming using Spring 5. I am going through online materials. I came to know that AOP is a concept, similar to OOP; and with AOP,OOPs becomes more powerful. Now, I am trying to do some hands-on coding for AOP with Spring framework, version 5. I am going to use maven as the build tool. I am not clear on what are the various dependencies that we have to use in pom.xml, for example do we need to use: spring-aop , spring-aspects , aspectj etc. Can anyone guide

问题 I am trying to learn Spring AOP programming using Spring 5. I am going through online materials. I came to know that AOP is a concept, similar to OOP; and with AOP,OOPs becomes more powerful. Now, I am trying to do some hands-on coding for AOP with Spring framework, version 5. I am going to use maven as the build tool. I am not clear on what are the various dependencies that we have to use in pom.xml, for example do we need to use: spring-aop , spring-aspects , aspectj etc. Can anyone guide