Google Drive 凭据返回 403 权限不足

Question

我正在尝试从云端硬盘获取文件数据列表。 按照谷歌的例子不起作用。

这是我的代码示例：

private static final JsonFactory JSON_FACTORY = GsonFactory.getDefaultInstance();

private Drive createDriveService() throws IOException, GeneralSecurityException
    {
        final NetHttpTransport HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();
        InputStream in = ImageImpl.class.getResourceAsStream(USER_CREDENTIALS_FILE_PATH);
        GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(in));

        // Build flow and trigger user authorization request.
        GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
                HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, Collections.singleton(DriveScopes.DRIVE))
                .setDataStoreFactory(new FileDataStoreFactory(new java.io.File(TOKENS_DIRECTORY_PATH)))
                .setAccessType("offline")
                .build();
        Credential credential = new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver()).authorize("user");
        return new Drive.Builder(HTTP_TRANSPORT, JSON_FACTORY, credential)
                .setApplicationName(applicationName)
                .build();
    }

    public void listFiles() throws IOException, GeneralSecurityException
    {
        Drive service = createDriveService();
        FileList result = service.files().list()
                .setPageSize(10)
                .setFields("nextPageToken, files(id, name)")
                .execute();
        List<File> files = result.getFiles();
    }

输出：

com.google.api.client.googleapis.json.GoogleJsonResponseException: 403 Forbidden
GET https://www.googleapis.com/drive/v3/files?fields=nextPageToken,%20files(id,%20name)&pageSize=10
{
  "code": 403,
  "details": [
    {
      "@type": "type.googleapis.com/google.rpc.ErrorInfo",
      "reason": "ACCESS_TOKEN_SCOPE_INSUFFICIENT",
      "domain": "googleapis.com",
      "metadata": {
        "service": "drive.googleapis.com",
        "method": "google.apps.drive.v3.DriveFiles.List"
      }
    }
  ],
  "errors": [
    {
      "domain": "global",
      "message": "Insufficient Permission",
      "reason": "insufficientPermissions"
    }
  ],
  "message": "Request had insufficient authentication scopes.",
  "status": "PERMISSION_DENIED"
}

有什么想法吗？

我尝试在这里测试查询 -> https://developers.google.com/drive/api/reference/rest/v2/files/list并且工作正常，但在本地不行 另外，我使用相同的凭据通过 ID 访问工作表并且可以工作，这样就可以告诉我身份验证没问题，唯一的区别是范围。

Answer 1

转到 TOKENS_DIRECTORY_PATH 并删除那里的文件。

您之前授权了您的应用程序，然后更改了范围。

您的应用需要再次请求用户授权并请求新的范围。