從攔截器的MessageContext獲取ServletContext

Question

如何從攔截器中提供的MessageContext獲取ServletContext對象？ 下面的TODO假設是一個ServletContext。

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

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

Answer 1

你可以嘗試以下方法：

@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

你應該能夠得到一個ServletContext有以下幾點：

messageContext.getProperty(HTTPConstants.MC_HTTP_SERVLETCONTEXT);