Java版Google Drive推送通知授权

Question

我正试图将Google Drive上的资源推送通知发送到我的服务器。我一直在看这个例子：

https://developers.google.com/drive/v3/web/push

我试着把它翻译成Java，像这样：

RestTemplate restTemplate = new RestTemplate();
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_JSON);
MultiValueMap<String, String> map = new LinkedMultiValueMap<String, String>();
map.add("id", "36d00d08-000d-4723-91bc-a1a6ec302e59");
map.add("type", "web_hook");
map.add("address", "https://mydomain.appspot.com/rest/drive");
HttpEntity<MultiValueMap<String, String>> request = new HttpEntity<MultiValueMap<String, String>>(map, headers);
ResponseEntity<String> response = restTemplate.postForEntity(uri, request, String.class);

我以前一直在使用谷歌的libs for Drive来访问文件。在这些情况下，我不需要以这样的"手动"方式创建请求。我使用了带有令牌的GoogleAuthorizationCodeFlow类来授权我的请求。我不确定我应该如何使用RestTemplate来做到这一点。我想我需要做一些类似的事情：

headers.set("Authorization", X);

X应该在这里是什么？这是获得授权的正确方式吗？

编辑：

这是我读一个秘密的尝试。结果是HTTP 401:

@Override
public String startListening() throws IOException {
final String fileId = "omitted";
String uri = "https://www.googleapis.com/drive/v3/files/" + fileId + "/watch";
HttpHeaders headers = getHeaders(getSecret());
HttpEntity<MultiValueMap<String, String>> request = new HttpEntity<MultiValueMap<String, String>>(getProperties(), headers);
RestTemplate restTemplate = new RestTemplate();
ResponseEntity<String> response = restTemplate.postForEntity(uri, request, String.class);
return response.getStatusCode() + " " + response.getBody() + " " + response.getHeaders();
}
private static HttpHeaders getHeaders(String theString) {
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_JSON);
headers.set("Authorization", "Bearer " + theString);
return headers;
}
private static MultiValueMap<String, String> getProperties() {
MultiValueMap<String, String> map = new LinkedMultiValueMap<String, String>();
map.add("id", "some uid");
map.add("type", "web_hook");
map.add("address", "https://mydomain.appspot.com/rest/drive");
return map;
}
private static String getSecret() throws IOException {
InputStream in =
ConcreteDriveListenerFactory.class.getResourceAsStream("/drive_secret.json");
StringWriter writer = new StringWriter();
IOUtils.copy(in, writer, "UTF-8");
return writer.toString();
}

Answer 1

正如@DalmTo所提到的，X代表令牌。关于驱动器API的示例POST请求，请尝试此SO线程中的代码片段。它还使用POST方法。

public static void main(String argv[]) throws Exception {
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost post = new HttpPost(
"https://www.googleapis.com/drive/v2/files");
post.addHeader("Content-Type", "application/json");
post.addHeader("Authorization",
"Bearer XXXXXXXXXXXXXXXXXXXXXXXXX");
JsonObject jsonObject = new JsonObject();
jsonObject.addProperty("title", "Test folder");
jsonObject
.addProperty("mimeType", "application/vnd.google-apps.folder");
post.setEntity(new StringEntity(jsonObject.toString()));
httpClient.execute(post);
}