code: public static void deleteCookie(String name, HttpServletRequest request, HttpServletResponse response) {
  		if (name == null || name.length() == 0) {
  			throw new IllegalArgumentException("cookie名称不能为空.");
  		}
  		CookieUtil.setCookie(name, "", -1, false, request, response);
  	}
docs: 删除cookie</br>
  
  @param name cookie名称
  @param request http请求
  @param response http响应