Create Spreadsheet using Google Spreadsheet API in

问题:

I had created some tool which was populating the google spreadsheet. It was working fine for 1 year, since today I've error

Exception in thread "main" com.google.gdata.util.AuthenticationException: Error authenticating (check service name)
at com.google.gdata.client.GoogleAuthTokenFactory.getAuthException(GoogleAuthTokenFactory.java:688)
at com.google.gdata.client.GoogleAuthTokenFactory.getAuthToken(GoogleAuthTokenFactory.java:560)
at com.google.gdata.client.GoogleAuthTokenFactory.setUserCredentials(GoogleAuthTokenFactory.java:397)
at com.google.gdata.client.GoogleService.setUserCredentials(GoogleService.java:364)
at com.google.gdata.client.GoogleService.setUserCredentials(GoogleService.java:319)
at com.google.gdata.client.GoogleService.setUserCredentials(GoogleService.java:303)

This is the part of code to connect with gmail:

String USERNAME = "usename@........com"; ->of course I'm using proper username and password
    String PASSWORD = "*******";
    SpreadsheetService service
            = new SpreadsheetService("SandboxCheck");
    service.setUserCredentials(USERNAME, PASSWORD);

I don't know how to connect with gmail, I was trying to do this via oAuth but I don't know how to do this. In examples on https://developers.google.com/google-apps/spreadsheets/authorize there is only code for .net.

回答1:

I finally with help from here managed to create such connection. Everything is working as before. Steps You have to do is:

1. Register at https://console.developers.google.com
2. Create new project
3. Under APIs & Auth -> Credential -> Create New Client ID for Service Account
4. When the Client ID is generated You have to generate P12 key.
5. Client id will be needed in code below, Email addres is the addres You have to share Your spreadsheet

Below is the working code

import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.jackson.JacksonFactory;
import com.google.gdata.client.spreadsheet.SpreadsheetService;
import com.google.gdata.data.spreadsheet.SpreadsheetEntry;
import com.google.gdata.data.spreadsheet.SpreadsheetFeed;
import com.google.gdata.util.ServiceException;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.security.GeneralSecurityException;
import java.util.Arrays;
import java.util.List;
public class OAuthIntegration{
    public static void main(String[] args) throws MalformedURLException, GeneralSecurityException, IOException, ServiceException {
        URL SPREADSHEET_FEED_URL;
        SPREADSHEET_FEED_URL = new URL("https://spreadsheets.google.com/feeds/spreadsheets/private/full");

        File p12 = new File("./key.p12");

        HttpTransport httpTransport = new NetHttpTransport();
        JacksonFactory jsonFactory = new JacksonFactory();
        String[] SCOPESArray = {"https://spreadsheets.google.com/feeds", "https://spreadsheets.google.com/feeds/spreadsheets/private/full", "https://docs.google.com/feeds"};
        final List SCOPES = Arrays.asList(SCOPESArray);
        GoogleCredential credential = new GoogleCredential.Builder()
                .setTransport(httpTransport)
                .setJsonFactory(jsonFactory)
                .setServiceAccountId("cliend_ID")
                .setServiceAccountScopes(SCOPES)
                .setServiceAccountPrivateKeyFromP12File(p12)
                .build();

        SpreadsheetService service = new SpreadsheetService("Test");

        service.setOAuth2Credentials(credential);
        SpreadsheetFeed feed = service.getFeed(SPREADSHEET_FEED_URL, SpreadsheetFeed.class);
        List<SpreadsheetEntry> spreadsheets = feed.getEntries();

        if (spreadsheets.size() == 0) {
            System.out.println("No spreadsheets found.");
        }

         SpreadsheetEntry spreadsheet = null;
        for (int i = 0; i < spreadsheets.size(); i++) {
            if (spreadsheets.get(i).getTitle().getPlainText().startsWith("ListOfSandboxes")) {
                spreadsheet = spreadsheets.get(i);
                System.out.println("Name of editing spreadsheet: " + spreadsheets.get(i).getTitle().getPlainText());
                System.out.println("ID of SpreadSheet: " + i);
            }
        }

    }

}

I hope this will help with issues I've faced. This is the list of jar I've used:

guava-11.0.2.jar
gdata-spreadsheet-3.0.jar
gdata-maps-2.0.jar
gdata-core-1.0.jar
jackson-core-asl-1.9.11.jar
jackson-core-2.1.3.jar
google-oauth-client-1.20.0.jar
google-http-client-jackson2-1.20.0.jar
google-http-client-jackson-1.20.0.jar
google-http-client-1.20.0.jar
google-api-client-1.20.0.jar

回答2:

Google just stopped support OAuth1.0. OAuth2 needs to be used. To switch, first go to Google Developer Console, create a project and set a credential. Then update your code similar to the following Java code:

private void createSpreadSheetService() throws GeneralSecurityException, IOException, ServiceException {
   HttpTransport httpTransport = new NetHttpTransport();
   JacksonFactory jsonFactory = new JacksonFactory();
   String [] SCOPESArray= {"https://spreadsheets.google.com/feeds", "https://docs.google.com/feeds"};
   final List SCOPES = Arrays.asList(SCOPESArray);
   GoogleCredential credential = new GoogleCredential.Builder()
     .setTransport(httpTransport)
     .setJsonFactory(jsonFactory)
     .setServiceAccountId(SERVICE_ACCOUNT_EMAIL)
     .setServiceAccountScopes(SCOPES)
     .setServiceAccountPrivateKeyFromP12File(SERVICE_ACCOUNT_PKCS12_FILE)
     .build();

   SPREADSHEETSERVICE = new SpreadsheetService("data");
   SPREADSHEETSERVICE.setOAuth2Credentials(credential);

}

You would need two libraries: google-api-client and google-http-client-jackson. If you use Maven, including the following dependencies in pom.xml.

 <dependency>
  <groupId>com.google.api-client</groupId>
  <artifactId>google-api-client</artifactId>
  <version>1.19.0</version>
  <type>jar</type>
 </dependency>
 <dependency>
  <groupId>com.google.http-client</groupId>
  <artifactId>google-http-client-jackson</artifactId>
  <version>1.19.0</version>
  <type>jar</type>
 </dependency>

回答3:

I've tried solution from Gao but I have one problem with Libraries. I'm using netbeans, the project is building without error but when I'm trying to execute it I've this error:

 Exception in thread "main" java.lang.NoClassDefFoundError: org/codehaus/jackson/JsonFactory
at com.google.api.client.json.jackson.JacksonFactory.<init>(JacksonFactory.java:38)
at SandboxCheck.main(SandboxCheck.java:48) 

I found out that there are problem with classpath but I have no idea how to fix it on netbeans, I thought it would do it automatically when adding a library. I've added

google-oauth-client-1.16.0-rc.jar google-oauth-client-1.16.0-rc-sources.jar google-api-client-1.8.0-beta-sources.jar google-api-client-1.4.1-beta.jar google-api-client-1.19.1.jar

I'm not sure If I add too much of this libraries but If I remove for eg. google-api-client-1.4.1-beta.jar it won't see JacksonFactory class.