java - Spring MVC 重写 ResourceHttpRequestHandler

Question

我正在尝试在 Spring MVC 应用程序中重写 ResourceHttpRequestHandler。

到目前为止我有以下类(class):

@Controller
public class ResourceHttpRequestHandlerReplacer extends ResourceHttpRequestHandler implements BeanFactoryPostProcessor {

@Override
public void handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    super.handleRequest(request, response);
}

public void postProcessBeanFactory(ConfigurableListableBeanFactory factory)
        throws BeansException {
    String[] names = factory.getBeanNamesForType(ResourceHttpRequestHandler.class);

    for (String name : names) {
        BeanDefinition bd = factory.getBeanDefinition(name);
        bd.setBeanClassName("com.project.controllers.ResourceHttpRequestHandlerReplacer");
    }
}

}

现在它应该只调用 super handleRequest，所以什么都不会改变，但我收到了这条消息:

Caused by: java.lang.IllegalStateException: WebApplicationObjectSupport instance [ResourceHttpRequestHandler [locations=[], resolvers=[org.springframework.web.servlet.resource.PathResourceResolver@16943e88]]] does not run within a ServletContext. Make sure the object is fully configured!

我正在尝试覆盖，以便我可以实现一些自定义逻辑，尝试查找非静态但未由 Controller 映射的资源，因为用户将能够为其 CMS 中的页面定义 URL .

谁能告诉我哪里出了问题？

谢谢

Answer 1

看起来您的ResourceHttpRequestHandlerReplacer不知道servletContext，这种情况很少见，因为您是从ResourceHttpRequestHandler扩展它的。尝试将其添加到您的类(class)中

@Autowired
ServletContext servletContext;