使用restTemplate.exchange（）进行API调用时，如何在编码后的参数上发送重定向URL？

Question

    String url = "https://www.facebook.com/v3.3/dialog/oauth"
    + "?client_id={client_id}&redirect_uri={uri}&access_token={access_token}";

    RestTemplate restTemplate = new RestTemplate();
    HttpHeaders headers = new HttpHeaders();
    HttpEntity<String> request = new HttpEntity<String>(headers);

    restTemplate.exchange(url, HttpMethod.GET, request,clientId, uri, access_token);

在此代码中，我应该使用编码的uri还是纯uri？