Spring AOP with Around建议和@annotation无法正常工作

时间:2013-11-07 10:27:06

标签: java spring annotations aop

我正在使用Spring AOP登录我的应用程序。这是applicationContext.xml文件

<mvc:annotation-driven />
<context:component-scan base-package="com.template" />
<context:annotation-config />
<jpa:repositories base-package="com.template.repository"/>
<tx:annotation-driven />

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
    <property name="url" value="jdbc:mysql://localhost:3306/template?autoReconnect=true"/>
    <property name="username" value="root"/>
    <property name="password" value=""/>
</bean>

<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="dataSource" ref="dataSource"/>
    <property name="persistenceXmlLocation" value="classpath:META-INF/persistence.xml"/>
    <property name="persistenceUnitName" value="template"/>

</bean>

<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
    <property name="entityManagerFactory" ref="entityManagerFactory"/>
</bean>

我的aopLogging.xml是

<bean id="aopLogging" class="com.template.log.AopLoggingAspect" />
<aop:aspectj-autoproxy proxy-target-class="false"/>

我的Aspect类是

import org.apache.log4j.Logger;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;
import org.springframework.util.StopWatch;

@Aspect
@Component
public class AopLoggingAspect {

private static final Logger logger = Logger.getLogger(AopLoggingAspect.class);

@Around(value="@annotation(com.template.log.Loggable)")
public Object logAround(final ProceedingJoinPoint joinPoint) throws Throwable{
        Object retVal = null;
        try {
            StringBuffer startMessageStringBuffer = new StringBuffer();

            startMessageStringBuffer.append("Start method execution :: ");
            startMessageStringBuffer.append(joinPoint.getSignature().getName());
            startMessageStringBuffer.append("(");

            Object[] args = joinPoint.getArgs();
            for (int i = 0; i < args.length; i++) {
                startMessageStringBuffer.append(args[i]).append(",");
            }
            if (args.length > 0) {
                       startMessageStringBuffer.deleteCharAt(startMessageStringBuffer.length() - 1);
            }

            startMessageStringBuffer.append(")");
            logger.info(startMessageStringBuffer.toString());
            StopWatch stopWatch = new StopWatch();
            stopWatch.start();
            retVal = joinPoint.proceed();
            stopWatch.stop();

            StringBuffer endMessageStringBuffer = new StringBuffer();
            endMessageStringBuffer.append("Finish method ");
            endMessageStringBuffer.append(joinPoint.getSignature().getName());
            endMessageStringBuffer.append("(..); execution time: ");
            endMessageStringBuffer.append(stopWatch.getTotalTimeMillis());
            endMessageStringBuffer.append(" ms;");

            logger.info(endMessageStringBuffer.toString());
        } catch(Exception ex) {
            StringBuffer errorMessageStringBuffer = new StringBuffer();
            logger.error(errorMessageStringBuffer.toString(), ex);
            throw ex;
        }
        return retVal;
}
}

我的自定义注释是

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.METHOD, ElementType.TYPE})
public @interface Loggable {
}

我的服务类是

public class UserService {
@Transactional(readOnly=true)
@Loggable
public User getUserByUserId(Long userId){
return userRepository.findOne(userId);
}
}

问题是日志没有打印出来。请帮我。提前致谢。如果需要任何其他信息,请告诉我。

4 个答案:

答案 0 :(得分:0)

在我看来,您忘记在applicationContext.xml文件中导入aopLogging.xml文件。尝试将其添加到applicationContext.xml文件中:

<!-- Import your AspectJ config -->
<import resource="classpath:aopLogging.xml" />

答案 1 :(得分:0)

这不完全是你所要求的,但它可能有用。我实现了一个增强的aop记录器。它具有您需要的功能和许多其他功能。见https://github.com/nickvl/aop-logging

PS 根据spring版本和整个应用程序上下文,尝试在aopLogging.xml中为类切换代理是值得的:

<aop:aspectj-autoproxy proxy-target-class="true"/> 

答案 2 :(得分:0)

试试这个..

<强> @Around(值= “@注解(可记录的)”) public Object logAround(final ProceedingJoinPoint joinPoint)抛出Throwable {

答案 3 :(得分:0)

创建注释

  

@Target(ElementType.METHOD)
  @Retention(RetentionPolicy.RUNTIME)

     

public @interface LogExecutionTime {}

然后是一个方面

  

@Aspect

     

@Component
  公共类LoggingAspect {

然后是Aspect中的方法

  

@Around( “@注解(LogExecutionTime)”)
  公共对象   logExecutionTime(ProceedingJoinPoint joinPoint)抛出Throwable {

  long start = System.currentTimeMillis();

  Object proceed = joinPoint.proceed();

  long executionTime = System.currentTimeMillis() - start;

  LOGGER.info(joinPoint.getSignature() + " executed in " + executionTime + "ms");
  return proceed;     }

然后使用Annotation Anywhere

  

@PostMapping(值= “/注册”)
  @LogExecutionTime
  public @ResponseBody   ResponseObject寄存器(用户用户){   }