关于spring2.5的@Scoped

网上很多都讲不清楚。得了，还是看官网吧：

http://static.springframework.org/spring/docs/2.5.x/reference/beans.html#beans-factory-scopes

新加了@Scoped，里边可以选session、request等，不过，需要在web.xml中再配置一下：

<web-app>
  ...
  <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>
  </filter-mapping>


  ...
</web-app>

然后再给Action类加上Annotation:
@Service
@Scoped(Scope.SESSION)
@InterceptorRef("defaultStack")
public class ProxyAction extends BaseActionSupport implements ServletRequestAware
{
...
}

注意这里的import:
import com.opensymphony.xwork2.inject.Scope;
import com.opensymphony.xwork2.inject.Scoped;

Scope并非annotation！要注意，因为还有一个annotation名字就叫scope