SpringMVC获取Request，Response， Session对象

SpringMVC获取Request，Response， Session对象

方法一

通过@Resource注解注入，@Autowired也可以

@Resource
private HttpServletRequest httpServletRequest;

@Resource
private HttpServletResponse httpServletResponse;

@Resource
private HttpSession httpSession;

方法二（最常用）

在方法体形参中，springmvc会自动传递Request，Response， Session对象到方法形参中

@PostMapping("/hello")
public String hello(HttpServletRequest request,HttpSession session,HttpServletResponse response ){
	return "hello";
}

方法三

ServletRequestAttributes对象获取

	//获取ServletRequestAttributes对象
    ServletRequestAttributes servletRequestAttributes = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes());
 
    //获取HttpServletRequest对象
    HttpServletRequest request = servletRequestAttributes.getRequest();
 
    //获取HttpServletResponse对象
    HttpServletResponse response = servletRequestAttributes.getResponse();
 
    //获取HttpSession对象
    HttpSession session = servletRequestAttributes.getRequest().getSession();