また、開発者向けドキュメントが OAuth2 以外のすべてについて Java の例を提供しているのも、非常にばかげていると思いました。これを機能させるために使用したサンプルコードを次に示します。完全を期すために、後のセクションにスプレッドシートの取得の例が含まれています。以下に示すように、必要なスコープを Java DrEdit の例に追加する必要があることにも注意してください。
public class GSpreadsheets {
private static final String CLIENT_ID = "YOUR_CLIENT_ID";
private static final String CLIENT_SECRET = "YOUR_SECRET_ID";
private static final String REDIRECT_URI = "urn:ietf:wg:oauth:2.0:oob";
public static void main(String[] args) throws Exception {
if (CLIENT_ID.equals("YOUR_CLIENT_ID") || CLIENT_SECRET.equals("YOUR_SECRET_ID")) {
throw new RuntimeException(
"TODO: Get client ID and SECRET from https://cloud.google.com/console");
}
// get credentials similar to Java DrEdit example
// https://developers.google.com/drive/examples/java
HttpTransport httpTransport = new NetHttpTransport();
JsonFactory jsonFactory = new JacksonFactory();
GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
httpTransport, jsonFactory, CLIENT_ID, CLIENT_SECRET,
Arrays.asList(DriveScopes.DRIVE,
"https://spreadsheets.google.com/feeds",
"https://docs.google.com/feeds"))
.setAccessType("online")
.setApprovalPrompt("auto").build();
String url = flow.newAuthorizationUrl().setRedirectUri(REDIRECT_URI).build();
System.out.println("Please open the following URL in your "
+ "browser then type the authorization code:");
System.out.println(" " + url);
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String code = br.readLine();
GoogleTokenResponse response = flow.newTokenRequest(code).setRedirectUri(REDIRECT_URI).execute();
GoogleCredential credential = new GoogleCredential().setFromTokenResponse(response);
// create the service and pass it the credentials you created earlier
SpreadsheetService service = new SpreadsheetService("MyAppNameHere");
service.setOAuth2Credentials(credential);
// Define the URL to request. This should never change.
URL SPREADSHEET_FEED_URL = new URL(
"https://spreadsheets.google.com/feeds/spreadsheets/private/full");
// Make a request to the API and get all spreadsheets.
SpreadsheetFeed feed = service.getFeed(SPREADSHEET_FEED_URL, SpreadsheetFeed.class);
List<SpreadsheetEntry> spreadsheets = feed.getEntries();
// Iterate through all of the spreadsheets returned
for (SpreadsheetEntry spreadsheet : spreadsheets) {
// Print the title of this spreadsheet to the screen
System.out.println(spreadsheet.getTitle().getPlainText());
}
}
}