java 定义 Spring 请求范围 bean
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defining Spring request scope bean
提问by Spring
For using spring request scopebean is this definition correct?
对于使用 spring请求范围bean 这个定义是否正确？
<bean id="shoppingCart" class="ShoppingCart" scope="request">
<!-- This requires CGLIB -->
<aop:scoped-proxy/>
</bean>
I modified this from a session scopebean example, and changed only the scope definition, not sure about the proxy thing
我从会话作用域bean 示例中修改了它，只更改了作用域定义，不确定代理的事情
I took this example from this link, you can see the full xml:
我从这个链接中获取了这个例子，你可以看到完整的 xml：
http://wheelersoftware.com/articles/spring-session-scoped-beans-2.html
http://wheelersoftware.com/articles/spring-session-scoped-beans-2.html
回答by Roadrunner
Generally - yes, it's correct.
一般来说 - 是的，这是正确的。
If for every request You'd retrieve the request scoped bean directly from the BeanFactory, then You don't need the proxy.
如果对于每个请求，您都直接从 检索请求范围的 bean BeanFactory，那么您不需要代理。
But You need the proxy if You're going to use the request soped bean as a depenedncy to singleton scoped bean, for example like this:
但是，如果您要使用请求 soped bean 作为对单例作用域 bean 的依赖，则需要代理，例如：
@Controller
public class MyController {
@Autowired
private ShoppingCart shoppingCart;
}
See this referencepage for more details about scoped beans.
有关作用域 bean 的更多详细信息，请参阅此参考页。
As a side note I'd advise to use standard JDK interface-based poxies instead of CGLIB whenever possible. More about proxying with spring can be found in documentation.
作为旁注，我建议尽可能使用标准的基于 JDK 接口的 poxies 而不是 CGLIB。更多关于使用 spring 代理的信息可以在文档中找到。
