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我在Spring中有一個計劃任務，每24小時執行一次，我也可以在任何時候作爲異步任務觸發。發生火災時，我會得到以下例外情況。彈簧循環引用注入問題
org.exampletest.toa.data.error.DataAccessException: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.interceptor': Scope 'request' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.
at org.exampletest.toa.data.pool.implementations.UserService.getObjectFromOriginalDataSource(UserService.java:60) ~[helpsteps-core-1.0.2-SNAPSHOT.jar:na]
at org.exampletest.toa.data.pool.implementations.UserService.getObjectFromOriginalDataSource(UserService.java:28) ~[helpsteps-core-1.0.2-SNAPSHOT.jar:na]
at org.exampletest.toa.data.pool.ObjectPool.getObjectFromDataSource(ObjectPool.java:241) ~[helpsteps-core-1.0.2-SNAPSHOT.jar:na]
at org.exampletest.toa.data.pool.ObjectPool.getCopy(ObjectPool.java:133) ~[helpsteps-core-1.0.2-SNAPSHOT.jar:na]
at org.exampletest.toa.data.pool.implementations.UserService.getCopy(UserService.java:82) ~[helpsteps-core-1.0.2-SNAPSHOT.jar:na]
at org.exampletest.toa.messaging.dispatch.MessageDispatcher.dispatch(MessageDispatcher.java:162) ~[helpsteps-core-1.0.2-SNAPSHOT.jar:na]
at org.exampletest.toa.messaging.dispatch.MessageDispatcher.dispatchNightly(MessageDispatcher.java:82) ~[helpsteps-core-1.0.2-SNAPSHOT.jar:na]
...
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.interceptor': Scope 'request' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:342) ~[spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) ~[spring-beans-3.1.1.RELEASE.jar:3.1.1.RELEASE]
at org.springframework.aop.target.SimpleBeanTargetSource.getTarget(SimpleBeanTargetSource.java:33) ~[spring-aop-3.1.1.RELEASE.jar:3.1.1.RELEASE]
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.getTarget(Cglib2AopProxy.java:654) ~[spring-aop-3.1.1.RELEASE.jar:3.1.1.RELEASE]
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:605) ~[spring-aop-3.1.1.RELEASE.jar:3.1.1.RELEASE]
at org.exampletest.toa.access.PrivilegedMethodInterceptor$$EnhancerByCGLIB$$6ed9064e.invoke(<generated>) ~[cglib-2.2.2.jar:na]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) ~[spring-aop-3.1.1.RELEASE.jar:3.1.1.RELEASE]
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) ~[spring-aop-3.1.1.RELEASE.jar:3.1.1.RELEASE]
at com.sun.proxy.$Proxy190.getGroupSubscribers(Unknown Source) ~[na:na]
at org.exampletest.toa.data.implementations.mysql.MySQLUserDAO.fillInGroupDetails(MySQLUserDAO.java:8406) ~[helpsteps-core-1.0.2-SNAPSHOT.jar:na]
at org.exampletest.toa.data.implementations.mysql.MySQLUserDAO.setUserRelationships(MySQLUserDAO.java:2698) ~[helpsteps-core-1.0.2-SNAPSHOT.jar:na]
at org.exampletest.toa.data.implementations.mysql.MySQLUserDAO.getUser(MySQLUserDAO.java:5314) ~[helpsteps-core-1.0.2-SNAPSHOT.jar:na]
這裏是我的applicationContext.xml
<bean id="messageDispatcher" class="org.exampletest.toa.messaging.dispatch.MessageDispatcher" scope="singleton">
<property name="userDAO" ref="userDAO_raw"/>
<property name="userService" ref="userPool_raw"/>
</bean>
<bean id="groupDAO_raw" class="org.exampletest.toa.data.implementations.mysql.MySQLGroupDAO" scope="singleton">
<property name="dataSources" ref="dataSources"/>
<property name="userDAO" ref="userDAO_raw" />
...
<bean id="userDAO_raw" class="org.exampletest.toa.data.implementations.mysql.MySQLUserDAO" scope="singleton">
<property name="dataSources" ref="dataSources"/>
<property name="groupDAO" ref="groupDAO_raw" />
...
</bean>
<bean id="userPool_raw" class="org.exampletest.toa.data.pool.implementations.UserService" scope="singleton">
<property name="dao" ref="userDAO_raw" />
...
</bean>
<bean id="userDAO" class="org.springframework.aop.framework.ProxyFactoryBean">
<property name="target">
<ref bean="userDAO_raw"/>
</property>
<property name="interceptorNames">
<list>
<value>interceptor</value>
</list>
</property>
</bean>
<bean id="groupDAO" class="org.springframework.aop.framework.ProxyFactoryBean">
<property name="target">
<ref bean="groupDAO_raw"/>
</property>
<property name="interceptorNames">
<list>
<value>interceptor</value>
</list>
</property>
</bean>
<bean id="userPool" class="org.springframework.aop.framework.ProxyFactoryBean">
<property name="target">
<ref bean="userPool_raw"/>
</property>
<property name="interceptorNames">
<list>
<value>interceptor</value>
</list>
</property>
</bean>
<bean id="interceptor" class="org.exampletest.toa.access.PrivilegedMethodInterceptor" scope="request">
<aop:scoped-proxy/>
<property name="environment" ref="environment" />
<property name="session" ref="toasession" />
<property name="methodContextManager" ref="methodContextManager" />
<property name="userDAO" ref="userDAO_raw" />
...
</bean>
我很困惑。我正在將'raw'userDAO和userPool注入到我的任務類（MessageDispatcher）中，並將'raw'groupDAO注入到userDAO中，反之亦然，但異常似乎表明Spring仍在創建代理對象groupDAO。循環參考注射有問題嗎？ （我認爲Spring自動處理。）我不知道我做錯了什麼。