Google API 凭据未按预期工作

Question

我正在尝试为我的项目获取 GoogleCredential，如下所示，

GoogleCredential credential = new GoogleCredential.Builder()
                     .setTransport(httpTransport)
                     .setJsonFactory(jsonFactory)
                     .setServiceAccountId("xxx@famous-store-115417.iam.gserviceaccount.com")
                     .setServiceAccountScopes(SCOPES)
                     .setServiceAccountPrivateKeyFromP12File(new File(p12))
                     .build();

但我遇到了错误，

Exception in thread "main" com.google.gdata.util.AuthenticationException: Failed to refresh access token: 400 Bad Request
{
  "error" : "invalid_grant"
}
    at com.google.gdata.client.GoogleAuthTokenFactory$OAuth2Token.refreshToken(GoogleAuthTokenFactory.java:260)
    at com.google.gdata.client.GoogleAuthTokenFactory.handleSessionExpiredException(GoogleAuthTokenFactory.java:702)
    at com.google.gdata.client.GoogleService.handleSessionExpiredException(GoogleService.java:738)
    at com.google.gdata.client.GoogleService.getFeed(GoogleService.java:649)
    at com.google.gdata.client.Service.getFeed(Service.java:1017)
    at ImportAwards.openFeed(ImportAwards.java:49)
    at ImportAwards.importAwards(ImportAwards.java:62)
    at ImportAwards.main(ImportAwards.java:29)
Caused by: com.google.api.client.auth.oauth2.TokenResponseException: 400 Bad Request
{
  "error" : "invalid_grant"
}
    at com.google.api.client.auth.oauth2.TokenResponseException.from(TokenResponseException.java:105)
    at com.google.api.client.auth.oauth2.TokenRequest.executeUnparsed(TokenRequest.java:287)
    at com.google.api.client.auth.oauth2.TokenRequest.execute(TokenRequest.java:307)
    at com.google.api.client.googleapis.auth.oauth2.GoogleCredential.executeRefreshToken(GoogleCredential.java:384)
    at com.google.api.client.auth.oauth2.Credential.refreshToken(Credential.java:489)
    at com.google.gdata.client.GoogleAuthTokenFactory$OAuth2Token.refreshToken(GoogleAuthTokenFactory.java:258)
    ... 7 more

我知道这是权限相关的错误，但我使用的是正确的密钥和服务帐户 ID，并且我也通过网络搜索过它，但它与建议的解决方案相同。我也推荐了this。

任何建议都非常感谢，在此先感谢。我应该错过什么？

Answer 1

我终于找到了解决办法，

我使用的是 Goodle Drive API，因此我还需要与服务帐户 (xxx@ Famous-store-115417.iam.gserviceaccount.com) 共享该文档。之后它就可以正常工作了。

希望对其他人有所帮助。

问候， 维沙尔 Z。