使用 Google Spreadsheet API 在 Java 的 Google 云端硬盘中创建电子表格

我终于在这里的帮助下设法建立了这样的联系。一切都像以前一样工作。您必须执行的步骤是：

1. 在 https://console.developers.google.com 注册
2. 创建新项目
3. 在“API 和身份验证 -> 凭据 ->为服务帐户创建新的客户端 ID”下
4. 生成客户端 ID 时，必须生成 P12 密钥。
5. 在下面的代码中将需要客户端ID，电子邮件地址是您必须共享电子表格的地址

以下是工作代码

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);
            }
        }

    }

}

我希望这将有助于解决我面临的问题。这是我用过的jar列表：

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

谷歌刚刚停止支持OAuth1.0。需要使用 OAuth2。要进行切换，请先转到 Google 开发者控制台，创建项目并设置凭据。然后更新您的代码，类似于以下 Java 代码：

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);

}

你需要两个库：google-api-client和google-http-client-jackson。如果使用 Maven，包括 pom 中的以下依赖项.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>