java - 从拦截器中的 MessageContext 获取 ServletContext

Question

如何从拦截器中提供的 MessageContext 获取 ServletContext 对象？下面的 TODO 假设是一个 ServletContext。

@Override
public boolean handleRequest(MessageContext messageContext, Object endpoint)
        throws Exception {

    WebApplicationContext applicationContext =
            WebApplicationContextUtils.getWebApplicationContext(TODO);
            TestIdentitiesService service = applicationContext.getBean(TestIdentitiesService.class);

Answer 1

您可以尝试以下方法：

@Autowired
private ServletContext context;

@Override
public boolean handleRequest(MessageContext messageContext, Object endpoint)
        throws Exception {

    WebApplicationContext applicationContext =
            WebApplicationContextUtils.getWebApplicationContext(context);
    TestIdentitiesService service =
    applicationContext.getBean(TestIdentitiesService.class);

Answer 2

您应该能够获得具有以下内容的 ServletContext：

messageContext.getProperty(HTTPConstants.MC_HTTP_SERVLETCONTEXT);