得到HttpServletRequest的三种方式
方式一：Controller方法参数
在Controller的方法参数上写上HttpServletRequest，这样每次请求过来得到就是对应的HttpServletRequest。
@GetMapping(“/test”)
public void test(HttpServletRequest request) {}
方式二：从RequestContextHolder上下文获取
@GetMapping(“/test”)
public void test(HttpServletRequest request) {
// 从请求上下文里获取Request对象
ServletRequestAttributes requestAttributes = ServletRequestAttributes.class.
cast(RequestContextHolder.getRequestAttributes());
HttpServletRequest contextRequest = requestAttributes.getRequest();
}
方式三：依赖注入@Autowired
@Autowired
HttpServletRequest req;
@GetMapping(“/test”)
public void test(HttpServletRequest request) {}
原文：https://blog.csdn.net/hzau_itdog/article/details/108851270