从拦截器的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

你可以尝试以下方法：

@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

你应该能够得到一个ServletContext有以下几点：

messageContext.getProperty(HTTPConstants.MC_HTTP_SERVLETCONTEXT);