[英]Aspect not excecuting at runtime (Spring 3, AspectJ)
我已經創建了一個Aspect,但是它似乎無法正常工作,在日志中什么也看不到,也沒有錯誤消息或任何對我有幫助的內容。
Spring將該存儲庫自動連線到另一個bean,該bean工作正常,因此可以進行組件掃描。 Aspect處於要掃描的程序包內部。 我在類路徑上有aspectj。
方面:
@Aspect
@Component
public class LoggingAspect {
private static Logger logger = Logger.getLogger(LoggingAspect.class);
@Before("execution(* nl.bar.repository.*.*(..))")
public void logIt(JoinPoint joinPoint) {
logger.debug("WE'RE LOGGING IT!!!!");
}
}
春豆:
package nl.bar.repository
@Component
public class BarRepository {
public List<Bar> findBar() {
....
}
}
ApplicationContext:
<context:annotation-config />
<context:component-scan base-package="nl.bar" />
<aop:aspectj-autoproxy/>
Maven:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.6.11</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.6.11</version>
</dependency>
您必須遺漏一些Maven依賴項,因為如果沒有spring-context
則不應編譯代碼。 添加spring-context
,代碼按原樣工作。
這是我對問題的猜測:方面包/類的日志記錄級別未設置為調試。
這是我的版本,並且輸出成功,基本上沒有變化:
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>2.5.6</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.6.11</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.6.11</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.16</version>
</dependency>
</dependencies>
除了Java庫類是簡單的之外, applicationContext.xml
文件和Java一樣保持不變:
@Component("repo")
public class BarRepository implements Repo {
public String findBar() {
return "Hello!";
}
}
健全性檢查main
如下:
public static void main(String[] args) {
LOG.debug("Initializing context...");
ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
LOG.debug("Retrieving bean...");
Repo repo = (Repo) context.getBean("repo");
LOG.debug("Calling bean...");
System.out.println(repo.findBar());
}
我在DEBUG
記錄了org.springframework.aop
的以下輸出,在INFO
看到了我的長寬比類:
DEBUG nl.main.Main - Initializing context...
INFO org.springframework.context.support.ClassPathXmlApplicationContext - Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@1125127: display name [org.springframework.context.support.ClassPathXmlApplicationContext@1125127]; startup date [Sat Nov 12 16:39:45 EST 2011]; root of context hierarchy
INFO org.springframework.beans.factory.xml.XmlBeanDefinitionReader - Loading XML bean definitions from class path resource [applicationContext.xml]
INFO org.springframework.context.support.ClassPathXmlApplicationContext - Bean factory for application context [org.springframework.context.support.ClassPathXmlApplicationContext@1125127]: org.springframework.beans.factory.support.DefaultListableBeanFactory@89cc5e
INFO org.springframework.beans.factory.support.DefaultListableBeanFactory - Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@89cc5e: defining beans [org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,repo,loggingAspect,org.springframework.aop.config.internalAutoProxyCreator]; root of factory hierarchy
DEBUG org.springframework.aop.aspectj.annotation.ReflectiveAspectJAdvisorFactory - Found AspectJ method: public void nl.bar.aspects.LoggingAspect.logIt(org.aspectj.lang.JoinPoint)
DEBUG org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator - Creating implicit proxy for bean 'repo' with 0 common interceptors and 2 specific interceptors
DEBUG org.springframework.aop.framework.JdkDynamicAopProxy - Creating JDK dynamic proxy: target source is SingletonTargetSource for target object [nl.bar.repository.BarRepository@1dec1dd]
DEBUG nl.main.Main - Retrieving bean...
DEBUG nl.main.Main - Calling bean...
INFO nl.bar.aspects.LoggingAspect - WE'RE LOGGING IT!!!!
Hello!
我敢打賭這可能是日志級別的問題,或者不是您想的那樣編譯,因為它應該按書面規定工作。
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