我正在尝试使用“服务帐户”授权访问来调用任何 Google API。我已经下载了“.pk2”文件并在 Google API 控制台的“服务”选项卡中激活了“URL Shortener API”。每当我尝试调用任何 API(URL 缩短器或 Adsense)时。我有以下异常 -
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:303)
at com.google.api.client.auth.oauth2.TokenRequest.execute(TokenRequest.java:323)
at com.google.api.client.googleapis.auth.oauth2.GoogleCredential.executeRefreshToken(GoogleCredential.java:345)
at com.google.api.client.auth.oauth2.Credential.refreshToken(Credential.java:526)
at com.google.api.client.auth.oauth2.Credential.intercept(Credential.java:287)
at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:836)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:412)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:345)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:463)
以下是代码片段 -
HttpTransport HTTP_TRANSPORT = new NetHttpTransport();
JsonFactory JSON_FACTORY = new JacksonFactory();
File privateKey = new File(ReportAdsense.class.getResource("mykey.p12").toURI());
GoogleCredential credential = new GoogleCredential.Builder().setTransport(HTTP_TRANSPORT)
.setJsonFactory(JSON_FACTORY)
.setServiceAccountId("my_valid_account_id@developer.gserviceaccount.com")
.setServiceAccountScopes(UrlshortenerScopes.URLSHORTENER)
.setServiceAccountPrivateKeyFromP12File(privateKey)
.build();
Urlshortener service = new Urlshortener.Builder(new NetHttpTransport(), JSON_FACTORY, null).setHttpRequestInitializer(credential).build();
UrlHistory history = service.url().list().execute();