标签： Spring MVC

在Spring MVC中，为了能够随时取到当前请求的对象数据，可以通过@Autowired注解法获取，或者通过RequestContextHolder的静态方法getRequestAttributes获取相关变量，从而获取HttpServletRequest和HttpServletResponse对象。

一、获取HttpServletRequest：

// 注解法
@Autowired
protected HttpServletRequest request;

// RequestContextHolder法
ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
HttpServletRequest request = attributes.getResponse();

二、获取HttpServletResponse：

// 注解法
@Autowired
protected HttpServletResponse response;

// RequestContextHolder法
ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
HttpServletResponse response = attributes.getResponse();