@Override
	public void removeRememberMeInfo(SecurityServletContext context, String rememberMeKey) throws SecurityRuntimeException {
		//销毁cookie
		Cookie cookie= new Cookie(rememberMeKey, null);
		cookie.setMaxAge(0);
		cookie.setPath(context.getRequest().getContextPath() + '/');
		context.getResponse().addCookie(cookie);
	}