Spring MVC

可以直接作为Controller的参数传入：

    @RequestMapping(value = "/test", method = RequestMethod.POST, produces = "application/json;charset=UTF-8")
    @ResponseBody
    public Map test(HttpSession session, String otherParam) {
        //TODO
        return null;
    }

其它

要获取HttpSession，只需要获取到HttpServletRequest，然后调用HttpServletRequest的getSession方法

1、注解自动注入

@Autowired
private HttpSession session;

@Autowired
private HttpServletRequest request;

2、普通类中获取

HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();

request.getSession();