在Spring Beans中使用会话范围 [英] Using Session Scope in Spring Beans
问题描述
我使用JSF 2作为视图,使用Spring作为业务逻辑。我正在尝试使用注释(@Scope(session))将会话范围设置为我的一个春季bean,但我得到了这个例外:
I'm using JSF 2 for the view and Spring for the business logic. I'm trying to set a session scope to one of my spring beans using annotations(@Scope("session")), but I'm getting this exception:
SEVERE: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'handleFiles': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private creazione.util.FTPOperations creazione.components.HandleOldFiles.operations;
nested exception is org.springframework.beans.factory.BeanCreationException:
Error creating bean with name 'ftpOperations': Scope 'session' 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.
我知道RequestContextListener。它在我的web.xml中。我还添加了RequestContextFilter:
I know about RequestContextListener. It's in my web.xml. I've also added RequestContextFilter:
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<listener>
<listener-class>
org.springframework.web.context.request.RequestContextListener
</listener-class>
</listener>
<filter>
<filter-name>requestContextFilter</filter-name>
<filter-class>org.springframework.web.filter.RequestContextFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>requestContextFilter</filter-name>
<url-pattern>/*</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>INCLUDE</dispatcher>
<dispatcher>FORWARD</dispatcher>
</filter-mapping>
似乎没什么用。我究竟做错了什么?
谢谢!
Nothing seems to work. What am I doing wrong? Thank you!
推荐答案
尝试定义必须作为aop会话注入的bean:scoped-proxy 。
Try to define the beans that have to be injected as session with aop:scoped-proxy.
<bean id="ftpOperations" class="..." scope="session">
<aop:scoped-proxy/>
</bean>
如果相关名称空间不存在,也添加它:
Add also the relevant namespace, if it's not present already:
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:aop="http://www.springframework.org/schema/aop"
...
xsi:schemaLocation="
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
...
这篇关于在Spring Beans中使用会话范围的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!