问题
I want to upload the zip-file to Google drive. I use Java Quickstart (https://developers.google.com/drive/v3/web/quickstart/java) as base. The code works. I modified it by the following code
File fileMetadata = new File();
fileMetadata.setName("My Report");
fileMetadata.setMimeType("application/vnd.google-apps.spreadsheet");
java.io.File filePath = new java.io.File("files/report.csv");
FileContent mediaContent = new FileContent("text/csv", filePath);
File file = driveService.files().create(fileMetadata, mediaContent)
.setFields("id")
.execute();
System.out.println("File ID: " + file.getId());
Now my compiler shows the error 403.
c:\wd2>gradle -q run
юъЄ 23, 2016 8:02:06 PM com.google.api.client.util.store.FileDataStoreFactory se
tPermissionsToOwnerOnly
WARNING: unable to change permissions for everybody: C:\Users\Home\.credentials\
drive-java-quickstart
юъЄ 23, 2016 8:02:06 PM com.google.api.client.util.store.FileDataStoreFactory se
tPermissionsToOwnerOnly
WARNING: unable to change permissions for owner: C:\Users\Home\.credentials\driv
e-java-quickstart
Credentials saved to C:\Users\Home\.credentials\drive-java-quickstart
Exception in thread "main" com.google.api.client.googleapis.json.GoogleJsonRespo
nseException: 403 Forbidden
{
"code" : 403,
"errors" : [ {
"domain" : "global",
"message" : "Insufficient Permission",
"reason" : "insufficientPermissions"
} ],
"message" : "Insufficient Permission"
}
at com.google.api.client.googleapis.json.GoogleJsonResponseException.fro
m(GoogleJsonResponseException.java:146)
at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClie
ntRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:113)
at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClie
ntRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:40)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest
.executeUnparsed(AbstractGoogleClientRequest.java:432)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest
.executeUnparsed(AbstractGoogleClientRequest.java:352)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest
.execute(AbstractGoogleClientRequest.java:469)
at DriveQuickstart.main(DriveQuickstart.java:126)
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':run'.
> Process 'command 'C:\Program Files\Java\jdk1.8.0_101\bin\java.exe'' finished w
ith non-zero exit value 1
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug
option to get more log output.
How can I fix it?
The source code:
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.FileContent;
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 Java 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");
/** 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
*/
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("/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();
//*
File fileMetadata = new File();
fileMetadata.setName("My Report");
fileMetadata.setMimeType("application/zip");
java.io.File filePath = new java.io.File("c:\\profiles.zip");
FileContent mediaContent = new FileContent("application/zip", filePath);
File file = service.files().create(fileMetadata, mediaContent)
.setFields("id")
.execute();
System.out.println("File ID: " + file.getId()); //*/
}
}
回答1:
I would also recommend changing the SCOPE from Arrays.asList(DriveScopes.DRIVE_METADATA_READONLY); to Arrays.asList(DriveScopes.DRIVE);
Here is more documentation on Google Drive API SCOPES.
When changing the SCOPE remember to delete your "StoredCredential" file that is stored within the tokens folder of your project.
Run your program again so that you will be prompted to provide Google login credentials to allow your program to organize, add and edit files on Google Drive.
Ensure that you allow your program to organize, add and edit files on Google Drive when granting permission in the authentication process.
The authentication process will generate a new "StoredCredential" file that will include your new SCOPE which you have specified.
This worked for me hope it will work for you as well.
来源：https://stackoverflow.com/questions/40201839/upload-the-file-to-google-drive-using-api-and-error-403