使用AspectJ的Spring / @Transactional完全被忽略(Spring / @Transactional with AspectJ is totally ignored)

 我使用Spring-Data Neo4j 2.2.0-RELEASE。 （我的以下问题将适用于任何其他类型的实体映射，为什么不适用于JPA） 
 
 在我的项目中，我有一个使用@Transactional Spring注释注释的公共方法，因为我想更新/保存其中的实体： 
 
public class MeetingServices {

    private UserRepository userRepository;

    private MeetingRepository meetingRepository;

    public void setUserRepository(UserRepository userRepository) {
        this.userRepository = userRepository;
    }

    public void setMeetingRepository(MeetingRepository meetingRepository) {
        this.meetingRepository = meetingRepository;
    }

    @Transactional("neo4jTransactionManager")
    public void save(Meeting meeting) {
        User creator = userRepository.getUserByEmail("test@test.com");
        creator.participateIn(meeting); // this line leads to a NotInTransactionException since it signals that no transaction context is associated.
        meeting.setCreator(creator);
    }
 
 我的application-context.xml如下： 
 
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:neo4j="http://www.springframework.org/schema/data/neo4j"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/data/neo4j
       http://www.springframework.org/schema/data/neo4j/spring-neo4j.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <bean id="graphDatabaseService" class="org.neo4j.kernel.EmbeddedGraphDatabase">
        <constructor-arg value="target/neo4jgraph" />
    </bean>

    <neo4j:config graphDatabaseService="graphDatabaseService" />

    <bean id="meetingServices" class="services.MeetingServices">
        <property name="userRepository"><ref bean="userRepository"/></property>
        <property name="meetingRepository"><ref bean="meetingRepository"/></property>
    </bean>

    <bean id="userServices" class="services.UserServices">
        <property name="userRepository"><ref bean="userRepository"/></property>
    </bean>

    <bean id="neo4jTransactionManager"
        class="org.springframework.transaction.jta.JtaTransactionManager">
        <property name="transactionManager">
            <bean class="org.neo4j.kernel.impl.transaction.SpringTransactionManager">
                <constructor-arg ref="graphDatabaseService" />
            </bean>
        </property>
        <property name="userTransaction">
            <bean class="org.neo4j.kernel.impl.transaction.UserTransactionImpl">
                <constructor-arg ref="graphDatabaseService" />
            </bean>
        </property>
    </bean>

    <tx:annotation-driven mode="aspectj"
        transaction-manager="neo4jTransactionManager" />

    <!-- auto-generated repositories for Neo4j storage -->
    <neo4j:repositories base-package="repositories"/> 

    <context:spring-configured/>

    <context:annotation-config/>

</beans>
 
 正如我们在此配置中看到的，aspectJ用于事务。 
 
 因此，我尝试通过更改application-context.xml以使用proxy功能而不是aspectJ功能来测试另一种方法： 
 
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:neo4j="http://www.springframework.org/schema/data/neo4j"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/data/neo4j
       http://www.springframework.org/schema/data/neo4j/spring-neo4j.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <bean id="graphDatabaseService" class="org.neo4j.kernel.EmbeddedGraphDatabase">
        <constructor-arg value="target/neo4jgraph" />
    </bean>

    <neo4j:config graphDatabaseService="graphDatabaseService" />

    <bean id="meetingServices" class="services.MeetingServices">
        <property name="userRepository"><ref bean="userRepository"/></property>
        <property name="meetingRepository"><ref bean="meetingRepository"/></property>
    </bean>

    <bean id="userServices" class="services.UserServices">
        <property name="userRepository"><ref bean="userRepository"/></property>
    </bean>

    <tx:annotation-driven mode="proxy" />


    <neo4j:repositories base-package="repositories"/>

    <context:spring-configured/>

    <context:annotation-config/>

</beans>
 
 此配置非常有效，因为@Transactional （当然已删除了neo4jTransactionManager参数）注释现在考虑了我的服务方法。 
 
 我的问题是，（无论我的项目是否适用于简单的proxy方法）： 
 
 在我的第一个Spring配置中，我使AspectJ事务功能失败，我错过了什么或错误配置了什么？ 
 
 我目前正在使用Spring提高我的技术技能，并阅读了几篇关于aspectJ的“加载时编织”的文章。 这可能与我的问题有关吗？ 

I use Spring-Data Neo4j 2.2.0-RELEASE. (my following issue would be applicable to any other kind of entity mapping, why not JPA)
 
In my project, I have a public method annotated with @Transactional Spring's annotation, since I want to update/save an entity inside it:
 
public class MeetingServices {

    private UserRepository userRepository;

    private MeetingRepository meetingRepository;

    public void setUserRepository(UserRepository userRepository) {
        this.userRepository = userRepository;
    }

    public void setMeetingRepository(MeetingRepository meetingRepository) {
        this.meetingRepository = meetingRepository;
    }

    @Transactional("neo4jTransactionManager")
    public void save(Meeting meeting) {
        User creator = userRepository.getUserByEmail("test@test.com");
        creator.participateIn(meeting); // this line leads to a NotInTransactionException since it signals that no transaction context is associated.
        meeting.setCreator(creator);
    }
 
My application-context.xml is the following:
 
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:neo4j="http://www.springframework.org/schema/data/neo4j"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/data/neo4j
       http://www.springframework.org/schema/data/neo4j/spring-neo4j.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <bean id="graphDatabaseService" class="org.neo4j.kernel.EmbeddedGraphDatabase">
        <constructor-arg value="target/neo4jgraph" />
    </bean>

    <neo4j:config graphDatabaseService="graphDatabaseService" />

    <bean id="meetingServices" class="services.MeetingServices">
        <property name="userRepository"><ref bean="userRepository"/></property>
        <property name="meetingRepository"><ref bean="meetingRepository"/></property>
    </bean>

    <bean id="userServices" class="services.UserServices">
        <property name="userRepository"><ref bean="userRepository"/></property>
    </bean>

    <bean id="neo4jTransactionManager"
        class="org.springframework.transaction.jta.JtaTransactionManager">
        <property name="transactionManager">
            <bean class="org.neo4j.kernel.impl.transaction.SpringTransactionManager">
                <constructor-arg ref="graphDatabaseService" />
            </bean>
        </property>
        <property name="userTransaction">
            <bean class="org.neo4j.kernel.impl.transaction.UserTransactionImpl">
                <constructor-arg ref="graphDatabaseService" />
            </bean>
        </property>
    </bean>

    <tx:annotation-driven mode="aspectj"
        transaction-manager="neo4jTransactionManager" />

    <!-- auto-generated repositories for Neo4j storage -->
    <neo4j:repositories base-package="repositories"/> 

    <context:spring-configured/>

    <context:annotation-config/>

</beans>
 
As we see in this configuration, aspectJ is used for transactions.
 
So, I tried to test another way of doing by changing my application-context.xml to use the proxy feature instead of aspectJ feature:
 
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:neo4j="http://www.springframework.org/schema/data/neo4j"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/data/neo4j
       http://www.springframework.org/schema/data/neo4j/spring-neo4j.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <bean id="graphDatabaseService" class="org.neo4j.kernel.EmbeddedGraphDatabase">
        <constructor-arg value="target/neo4jgraph" />
    </bean>

    <neo4j:config graphDatabaseService="graphDatabaseService" />

    <bean id="meetingServices" class="services.MeetingServices">
        <property name="userRepository"><ref bean="userRepository"/></property>
        <property name="meetingRepository"><ref bean="meetingRepository"/></property>
    </bean>

    <bean id="userServices" class="services.UserServices">
        <property name="userRepository"><ref bean="userRepository"/></property>
    </bean>

    <tx:annotation-driven mode="proxy" />


    <neo4j:repositories base-package="repositories"/>

    <context:spring-configured/>

    <context:annotation-config/>

</beans>
 
This configuration works pretty well since @Transactional (whose neo4jTransactionManager parameter was of course removed) annotation is now taken in account for my service's method.
 
My question is, (no matter whether my project would work with simple proxy method):
 
What did I miss or misconfigure in my first Spring's configuration that makes aspectJ transaction features failed?
 
I'm currently improving my technical skills with Spring, and read few articles about "Load-time weaving" for aspectJ. Might this be linked to my issue?

原文：https://stackoverflow.com/questions/15616710