Question

该应用程序是一个桌面应用程序，旨在与谷歌驱动器一起使用。

我已按照enter link description here上的快速入门指南进行操作，而不使用Gradle。我正在使用jar并为谷歌驱动器添加了库。

我遇到了setPermissionsToOwnerOnly错误的问题，并查看了stackoverflow和其他各种网站上的多个帖子，但仍然无法解决问题。

下面列出了我读过的几个解决方案，但它们似乎都没有起作用。

停止流程
更改目录
将client_secret.json放在build / classes / main或build / classes / main / resources /
清除.credentials文件夹

以下是我的编码，来自Google开发者网站

package UploadToDrive;



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.HttpTransport;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.util.store.FileDataStoreFactory;

import com.google.api.services.drive.DriveScopes;
import com.google.api.services.drive.model.*;
import com.google.api.services.drive.Drive;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.List;

public class DriveQuickstart {
    /** Application name. */
    private static final String APPLICATION_NAME =
        "Drive API Quickstart";

    /** Directory to store user credentials for this application. */
    private static final java.io.File DATA_STORE_DIR = new java.io.File(
        System.getProperty("user.home"), ".credentials/drive-java-quickstart.json");

    /** Global instance of the {@link FileDataStoreFactory}. */
    private static FileDataStoreFactory DATA_STORE_FACTORY;

    /** Global instance of the JSON factory. */
    private static final JsonFactory JSON_FACTORY =
        JacksonFactory.getDefaultInstance();

    /** Global instance of the HTTP transport. */
    private static HttpTransport HTTP_TRANSPORT;

    /** Global instance of the scopes required by this quickstart.
     *
     * If modifying these scopes, delete your previously saved credentials
     * at ~/.credentials/drive-java-quickstart.json
     */
    private static final List<String> SCOPES =
        Arrays.asList(DriveScopes.DRIVE_METADATA_READONLY);

    static {
        try {
            HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();
            DATA_STORE_FACTORY = new FileDataStoreFactory(DATA_STORE_DIR);
        } catch (Throwable t) {
            t.printStackTrace();
            System.exit(1);
        }
    }

    /**
     * Creates an authorized Credential object.
     * @return an authorized Credential object.
     * @throws IOException
     */
    public static Credential authorize() throws IOException {
        // Load client secrets.
        InputStream in =
            DriveQuickstart.class.getResourceAsStream("C:\\TESTINGS\\build\\classes\\main\\resources\\client_secret.json");
        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(DATA_STORE_FACTORY)
                .setAccessType("offline")
                .build();
        Credential credential = new AuthorizationCodeInstalledApp(
            flow, new LocalServerReceiver()).authorize("user");
        System.out.println(
                "Credentials saved to " + DATA_STORE_DIR.getAbsolutePath());
        return credential;
    }

    /**
     * Build and return an authorized Drive client service.
     * @return an authorized Drive client service
     * @throws IOException
     */
    public static Drive getDriveService() throws IOException {
        Credential credential = authorize();
        return new Drive.Builder(
                HTTP_TRANSPORT, JSON_FACTORY, credential)
                .setApplicationName(APPLICATION_NAME)
                .build();
    }

    public static void main(String[] args) throws IOException {
        // Build a new authorized API client service.
        Drive service = getDriveService();

        // Print the names and IDs for up to 10 files.
        FileList result = service.files().list()
             .setPageSize(10)
             .setFields("nextPageToken, files(id, name)")
             .execute();
        List<File> files = result.getFiles();
        if (files == null || files.size() == 0) {
            System.out.println("No files found.");
        } else {
            System.out.println("Files:");
            for (File file : files) {
                System.out.printf("%s (%s)\n", file.getName(), file.getId());
            }
        }
    }

}

以下是在netbeans上运行桌面应用程序时显示的错误消息。

    Jul 25, 2016 3:52:03 PM com.google.api.client.util.store.FileDataStoreFactory setPermissionsToOwnerOnly
WARNING: unable to change permissions for everybody: C:\Users\SilverFear\.credentials\drive-java-quickstart.json
Jul 25, 2016 3:52:03 PM com.google.api.client.util.store.FileDataStoreFactory setPermissionsToOwnerOnly
WARNING: unable to change permissions for owner: C:\Users\SilverFear\.credentials\drive-java-quickstart.json
Exception in thread "main" java.lang.NullPointerException
    at java.io.Reader.<init>(Reader.java:78)
    at java.io.InputStreamReader.<init>(InputStreamReader.java:72)
    at UploadToDrive.DriveQuickstart.authorize(DriveQuickstart.java:77)
    at UploadToDrive.DriveQuickstart.getDriveService(DriveQuickstart.java:100)
    at UploadToDrive.DriveQuickstart.main(DriveQuickstart.java:109)
C:\Users\SilverFear\AppData\Local\NetBeans\Cache\8.1\executor-snippets\run.xml:53: Java returned: 1
BUILD FAILED (total time: 0 seconds)

请有人帮我解决这个问题，或者告诉我我做错了什么。我一直在寻找自己的解决方案而且找不到任何解决方案。

非常感谢您的帮助。

谷歌驱动器java netbeans快速启动错误＆＃34; setPermissionsToOwnerOnly＆＃34;

0 个答案: