我有一个简单的Java程序在我的电脑上运行。它唯一的功能是读取在线电子表格（私人的，比如购物清单），然后对其进行一些无关的工作。
自从Google本月放弃了OAuth1.0以来，我一直在尝试使用OAuth2让该程序工作。之前可以使用我的电子邮件和应用程序密码进行身份验证。
现在，我被迫通过访问令牌进行工作。我的代码：
自从Google本月放弃了OAuth1.0以来，我一直在尝试使用OAuth2让该程序工作。之前可以使用我的电子邮件和应用程序密码进行身份验证。
现在，我被迫通过访问令牌进行工作。我的代码：
package joeslist;
import com.google.gdata.client.spreadsheet.SpreadsheetService;
import com.google.gdata.data.spreadsheet.CellFeed;
import com.google.gdata.data.spreadsheet.SpreadsheetEntry;
import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeRequestUrl;
import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeTokenRequest;
import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
import com.google.api.client.googleapis.auth.oauth2.GoogleTokenResponse;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.gdata.data.spreadsheet.SpreadsheetFeed;
import com.google.gdata.util.ServiceException;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Arrays;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author 74
*/
public class JoesList {
public static void main(String[] args) {
final String CLIENT_ID = "my_client_id.apps.googleusercontent.com"; //Unused?
final String CLIENT_SECRET = "myClientSecret";
// This is the Redirect URI for installed applications.
// If you are building a web application, you have to set your
// Redirect URI at https://code.google.com/apis/console.
final String REDIRECT_URI = "urn:ietf:wg:oauth:2.0:oob";
final SpreadsheetService service;
CellFeed feed;
service = new SpreadsheetService("Joe's List");
HttpTransport httpTransport = new NetHttpTransport();
JacksonFactory jsonFactory = new JacksonFactory();
String[] SCOPESArray = {"https://spreadsheets.google.com/feeds"};
final List SCOPES = Arrays.asList(SCOPESArray);
GoogleCredential credential;
try {
// Step 1: Authorize.
String authorizationUrl = new GoogleAuthorizationCodeRequestUrl(CLIENT_ID, REDIRECT_URI, SCOPES).build();
// Point or redirect your user to the authorizationUrl.
System.out.println("Go to the following link in your browser:");
System.out.println(authorizationUrl);
// Read the authorization code from the standard input stream.
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Paste the code that you got.");
String code = in.readLine();
// End of Step 1 <--
// Step 2: Exchange!
GoogleTokenResponse response
= new GoogleAuthorizationCodeTokenRequest(httpTransport, jsonFactory, CLIENT_ID, CLIENT_SECRET,
code, REDIRECT_URI).execute();
System.out.println("Token expires in: " + response.getExpiresInSeconds() + " seconds!");
// Let's build our GoogleCredential now.
credential = new GoogleCredential.Builder()
.setClientSecrets(CLIENT_ID, CLIENT_SECRET)
.setTransport(httpTransport)
.setJsonFactory(jsonFactory)
.build()
.setAccessToken(response.getAccessToken())
.setRefreshToken(response.getRefreshToken());
service.setOAuth2Credentials(credential);
} catch (IOException ex) {
Logger.getLogger(FuckingTest.class.getName()).log(Level.SEVERE, null, ex);
}
try {
final String spreadsheetName = "Joe's sheet";
final URL metafeedUrl=new URL("https://spreadsheets.google.com/feeds/spreadsheets/private/full?xoauth_requestor_id=joe");
final SpreadsheetFeed spreadsheetFeed = service.getFeed(metafeedUrl, SpreadsheetFeed.class);
final List<SpreadsheetEntry> spreadsheets = spreadsheetFeed.getEntries();
System.err.println(spreadsheets.size());
for (final SpreadsheetEntry spreadsheet : spreadsheets) {
System.err.println(spreadsheet.getTitle().getPlainText());
if (spreadsheetName.equals(spreadsheet.getTitle().getPlainText())) {
System.err.println("Found the Spreadsheet you want.");
}
}
} catch (final MalformedURLException e) {
throw new RuntimeException(e);
} catch (final IOException | ServiceException e) {
throw new RuntimeException(e);
}
}
}
问题：
这是一个私人小程序。我将成为它唯一的用户，我想让它读取一个私人电子表格。
每次运行它时，我是否需要费尽心思手动复制和粘贴访问令牌？ 是否有办法获得长期或永久的访问令牌？