Question

我有客户端/服务器应用程序。服务器端必须访问我自己的Google云端硬盘上的电子表格。我创建了一个测试类来尝试访问电子表格列表：

package com.eng.app;

import java.io.File;
import java.io.IOException;
import java.net.Authenticator;
import java.net.PasswordAuthentication;
import java.net.URISyntaxException;
import java.net.URL;
import java.security.GeneralSecurityException;
import java.util.Arrays;
import java.util.List;
import java.util.Properties;

import com.google.api.client.auth.oauth2.Credential;
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.JsonFactory;
import com.google.api.client.json.jackson2.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;

public class TestGoogleCredential {

    public static void main(String[] args) throws IOException,
            InterruptedException, GeneralSecurityException, URISyntaxException, ServiceException {

        List<String> SCOPES = Arrays
                .asList("https://spreadsheets.google.com/feeds");

        final HttpTransport TRANSPORT = new NetHttpTransport();
        final JsonFactory JSON_FACTORY = new JacksonFactory();


        File cert = new File(Credential.class.getClassLoader()
                .getResource("<the_file>.p12").toURI());

        HttpTransport transport = new NetHttpTransport();
        JacksonFactory jsonFactory = new JacksonFactory();

        GoogleCredential credential = new GoogleCredential.Builder()
                .setTransport(transport)
                .setJsonFactory(jsonFactory)
                .setServiceAccountId(<email-address>)
                .setServiceAccountScopes(SCOPES)
                .setServiceAccountPrivateKeyFromP12File(cert).build();

        SpreadsheetService service = new SpreadsheetService("Inertia");
        service.setOAuth2Credentials(credential);


        String urlString = "https://spreadsheets.google.com/feeds/spreadsheets/private/full";
        URL SPREADSHEET_FEED_URL = new URL(urlString);

        // istantiate the feed to the spreadsheets
        SpreadsheetFeed feed = service.getFeed(SPREADSHEET_FEED_URL,SpreadsheetFeed.class);

        // the list of all spreadsheets
        List<SpreadsheetEntry> spreadsheets = feed.getEntries();


        System.out.println(feed.getEntries().size());

        // select the particular spreadsheet on Inertia Ontology
        for (SpreadsheetEntry spreadsheetEntry : spreadsheets) {
                System.out.println("founded");
        }

    }
}

但是当我运行代码时，大小为0并且没有打印出电子表格。

我还进行了另一项测试，编写了一个使用我的Google凭据访问（在localhost上）电子表格列表而不是OAuth2授权的程序，它运行良好（它在我的Google云端硬盘上打印出所有电子表格）。

service.setUserCredentials(username, password); //My personal Google Account

注意：当我在远程服务器上使用我的个人Google凭据（不是OAuth2）部署测试程序时，Google已阻止其安全策略。

请有任何想法吗？

谢谢

Answer 1

尝试修改此代码段

GoogleCredential credential = new GoogleCredential.Builder()
                .setTransport(transport) 
                .setJsonFactory(jsonFactory) 
                .setServiceAccountId("google-dev-console-email-address") 
                .setServiceAccountUser("your-gmail")
                .setServiceAccountScopes(SCOPES) 
                .setServiceAccountPrivateKeyFromP12File(cert).build();

从远程服务器访问Google云端硬盘电子表格

1 个答案: