Spring AOP 与Around 建议和@annotation 不起作用

Question

I am using Spring AOP for logging in my application. Here is the applicationContext.xml file

<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>

and my aopLogging.xml is

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

and my Aspect class is

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;
}
}

and my Custom annotation is

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 {
}

and my Service class is

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

The problem is that the logs are not getting printed. Please help me. Thanks in advance. Please do let me know if any other info is needed.

Answer 1

It seems to me you have forgot to import in your applicationContext.xml file the aopLogging.xml file. Try to add this to your applicationContext.xml file:

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

Answer 2

Try this..

@Around(value="@annotation(Loggable)")
public Object logAround(final ProceedingJoinPoint joinPoint) throws Throwable{

Answer 3

Create a Annotation

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

public @interface LogExecutionTime { }

Then an Aspect

@Aspect

@Component
public class LoggingAspect {

Then a method in the Aspect

@Around("@annotation(LogExecutionTime)")
public Object logExecutionTime(ProceedingJoinPoint joinPoint) throws Throwable {

 long start = System.currentTimeMillis(); Object proceed = joinPoint.proceed(); long executionTime = System.currentTimeMillis() - start; LOGGER.info(joinPoint.getSignature() + " executed in " + executionTime + "ms"); return proceed; }

Then use the Annotation Anywhere

@PostMapping(value="/signup")
@LogExecutionTime
public @ResponseBody ResponseObject register(User user){ }