spring - 在实际 Web 请求之外使用请求范围的 bean

Question

我有一个 Web 应用程序，它在一个单独的线程中运行了一个 Spring Integration 逻辑。问题是在某些时候我的 Spring Integration 逻辑尝试使用请求范围的 bean，然后我得到以下错误:

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scopedTarget.tenantContext': 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.


Caused by: 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.

我设置了 ContextLoaderListener:

<listener>
    <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>

我的 Scoped Bean 是这样注释的(因为我听说代理我的 bean 会有所帮助):

@Component
@Scope(value = "request", proxyMode = ScopedProxyMode.TARGET_CLASS)  
public class TenantContext  implements Serializable {

我正在做的事情可能吗？如果是，我在这里错过了什么？如果没有，关于我如何实现这一目标的任何其他建议？

Answer 1

对于 Spring 4 框架添加 servletContext.addListener(new RequestContextListener());

public class WebApplicationInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[] { RootConfiguration.class };
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[] { WebMvcConfiguration.class };
    }

    @Override
    protected String[] getServletMappings() {
        return new String[] { "/" };
    }

    @Override
    protected Filter[] getServletFilters() {
        return new Filter[] { new HiddenHttpMethodFilter() };
    }

    **@Override
    public void onStartup(ServletContext servletContext) throws ServletException {
        super.onStartup(servletContext);
        servletContext.addListener(new RequestContextListener());
    }**
}