用於訪問Big Query的Java示例OAuth服務流應用程序

Question

是否有示例Java應用程序展示如何使用OAuth服務流訪問Big Query。大部分應用似乎都顯示Web和桌面流量。

謝謝

Answer 1

當然 - 嘗試像這樣（下面）。這種流程的更多示例如下：https://developers.google.com/bigquery/authorization#service-accounts-server

import com.google.api.client.http.HttpTransport; 
import com.google.api.client.http.javanet.NetHttpTransport; 
import com.google.api.client.json.JsonFactory; 
import com.google.api.client.json.jackson.JacksonFactory; 

import com.google.api.client.googleapis.auth.oauth2.GoogleCredential; 
import com.google.api.services.bigquery.Bigquery; 
import com.google.api.services.bigquery.Bigquery.Datasets; 
import com.google.api.services.bigquery.model.DatasetList; 

import java.io.File; 
import java.io.IOException; 
import java.security.GeneralSecurityException; 

public class JavaCommandLineServiceAccounts { 

    private static final String SCOPE = "https://www.googleapis.com/auth/bigquery"; 
    private static final HttpTransport TRANSPORT = new NetHttpTransport(); 
    private static final JsonFactory JSON_FACTORY = new JacksonFactory(); 

    private static Bigquery bigquery; 

    public static void main(String[] args) throws IOException, GeneralSecurityException { 
    GoogleCredential credential = new GoogleCredential.Builder().setTransport(TRANSPORT) 
     .setJsonFactory(JSON_FACTORY) 
     .setServiceAccountId("XXXXXXX@developer.gserviceaccount.com") 
     .setServiceAccountScopes(SCOPE) 
     .setServiceAccountPrivateKeyFromP12File(new File("my_file.p12")) 
     .build(); 

    bigquery = new Bigquery.Builder(TRANSPORT, JSON_FACTORY, credential) 
     .setApplicationName("BigQuery-Service-Accounts/0.1") 
     .setHttpRequestInitializer(credential).build(); 

    Datasets.List datasetRequest = bigquery.datasets().list("publicdata"); 
    DatasetList datasetList = datasetRequest.execute(); 
    System.out.format("%s\n", datasetList.toPrettyString()); 
    } 

}