问TSF使用自定义标签服务鉴权不生效是为什么？

@RequestMapping(value = "/echo-rest/{str}", method = RequestMethod.GET)
	public String restProvider(@PathVariable String str,
							   @RequestParam(required = false) String tagName,
							   @RequestParam(required = false) String tagValue) {
		if (!StringUtils.isEmpty(tagName)) {
			TsfContext.putTag(tagName, tagValue);
            TsfContext.putCustomMetadata(new CustomMetadata(tagName, tagValue));
		}
		return restTemplate.getForObject("http://provider-demo/echo/" + str, String.class);
	}