Question

我需要创建一个Lotus Notes Java代理，该代理需要将文件夹/文件从本地目录上载到Google Team Drive以进行预定备份。我对用于Java的Google API（https://developers.google.com/api-client-library/java/）进行了一些研究，但是由于我只有Java的基本知识，因此在尝试理解所有这些Java代码时遇到了一些困难。如果我正确理解它，那么api需要一个maven存储库，并且需要定义Lotus Notes中不支持的所有依赖项（不确定这一点，我是否正在阅读正确的文档）。

也许有人可以告诉我这是否可行，并指出要从哪里开始。您可能有一些示例代码，可以用作参考。任何帮助和建议都非常感谢。

谢谢。

Answer 1

您可能会看到Drive Java Quickstart [1]，在这里您将找到如何安装Gradle（与Maven非常相似）以及构建JAVA应用程序以发出请求的步骤的先决条件和链接。到Drive API。

很显然，使用该插件[2]或安装eclipse [3]，然后将gradle安装到Lotus Notes中，都不会出现问题。

按照快速入门，Java Drive文档[4]和此google上载文件的指南[5]，我成功创建并测试了以下代码：

import com.google.api.client.auth.oauth2.Credential;
import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
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.api.client.util.store.FileDataStoreFactory;
import com.google.api.services.drive.Drive;
import com.google.api.services.drive.DriveScopes;
import com.google.api.services.drive.model.File;
import com.google.api.client.http.FileContent;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.security.GeneralSecurityException;
import java.util.Arrays;
import java.util.List;

public class DriveQuickstart {
    //General Variables
    private static final String APPLICATION_NAME = "Google Calendar API Java Quickstart";
    private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();
    private static final String TOKENS_DIRECTORY_PATH = "tokens";

    /**
     * Global instance of the scopes required by this quickstart.
     * If modifying these scopes, delete your previously saved tokens/ folder.
     */
    private static final List<String> SCOPES = Arrays.asList(DriveScopes.DRIVE);
    private static final String CREDENTIALS_FILE_PATH = "/credentials.json";

    /**
     * Creates an authorized Credential object.
     * @param HTTP_TRANSPORT The network HTTP Transport.
     * @return An authorized Credential object.
     * @throws IOException If the credentials.json file cannot be found.
     */
    private static Credential getCredentials(final NetHttpTransport HTTP_TRANSPORT) throws IOException {
        // Load client secrets.
        InputStream in = DriveQuickstart.class.getResourceAsStream(CREDENTIALS_FILE_PATH);
        if (in == null) {
            throw new FileNotFoundException("Resource not found: " + CREDENTIALS_FILE_PATH);

        GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(in));

        // Build flow and trigger user authorization request.
        GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
                HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, SCOPES)
                .setDataStoreFactory(new FileDataStoreFactory(new java.io.File(TOKENS_DIRECTORY_PATH)))
                .setAccessType("offline")
                .build();
        LocalServerReceiver receiver = new LocalServerReceiver.Builder().setPort(8888).build();
        return new AuthorizationCodeInstalledApp(flow, receiver).authorize("user");


    public static void main(String... args) throws IOException, GeneralSecurityException {
        // Build the news authorized API client services.
        final NetHttpTransport HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();

        Drive driveService = new Drive.Builder(HTTP_TRANSPORT, JSON_FACTORY, getCredentials(HTTP_TRANSPORT))
                .setApplicationName(APPLICATION_NAME)
                .build();

        File fileMetadata = new File();
        fileMetadata.setName("Filename");
        java.io.File filePath = new java.io.File(“Complete-File-Path”);
        FileContent mediaContent = new FileContent("image/jpeg", filePath);
        File file = driveService.files().create(fileMetadata, mediaContent)
                .setFields("id")
                .execute();
        System.out.println("File ID: " + file.getId());

    }
}

仅提供信息，您可以使用一个工具将所有信息从Lotus Notes迁移到G Suite [6]。

[1] https://developers.google.com/drive/api/v3/quickstart/java

[2] https://www.ibm.com/support/knowledgecenter/en/SSYJJF_1.0.0/ApplicationSecurityonCloud/src_irx_gen_gradle.html

[3] https://www.ibm.com/developerworks/lotus/library/notes-eclipse/

[4] https://developers.google.com/resources/api-libraries/documentation/drive/v3/java/latest/

[5] https://developers.google.com/drive/api/v3/manage-uploads

[6] https://support.google.com/a/answer/161642?hl=en

Lotus Notes集成到Google Team-Drive

1 个答案: