Hello Iwansyah, note that this group is intended for discussion on App
Engine and not code troubleshooting, which is best done by posting a
question on Stack Overflow using one of the tags
<https://cloud.google.com/support/docs/stackexchange> monitored by our
community technical support team. If you do so I would advise that you add
as much information as possible about your application to allow for
reproducing the issue, including your pom.xml.
A quick search on the web reveals that this error is usually linked to
having an out of date configuration or using the wrong dependencies.
On Tuesday, September 12, 2017 at 9:03:46 AM UTC-4, Iwansyah Putra wrote:
>
> I get following error when I try to upload file to Google Cloud Storage
> through servlet using Google Client Library. The wierd part is file
> uploading process run okay when I do at local development server, error
> happened in deployed version of the app
>
> java.lang.IllegalStateException: No multipart config for servlet
>
> and this is my uploading servlet
>
> import com.google.cloud.storage.*;
>
> import javax.servlet.RequestDispatcher;
> import javax.servlet.ServletException;
> import javax.servlet.annotation.MultipartConfig;
> import javax.servlet.http.HttpServlet;
> import javax.servlet.http.HttpServletRequest;
> import javax.servlet.http.HttpServletResponse;
> import javax.servlet.http.Part;
> import java.io.IOException;
> import java.util.ArrayList;
> import java.util.List;
>
> @MultipartConfig()
> public class GCSAccessServlet extends HttpServlet {
>
> private static final String BUCKET_NAME = System.getenv("bucketName");
> private static Storage storage = null;
>
> @Override
> public void init() {
> storage = StorageOptions.getDefaultInstance().getService();
>
> }
>
> @Override
> protected void doGet(HttpServletRequest req, HttpServletResponse resp)
> throws ServletException, IOException {
>
> if (BUCKET_NAME.equals("") || BUCKET_NAME == null) {
> System.out.println("Bucket is not found (null / empty name)");
> }
> Bucket bucket = storage.get(BUCKET_NAME);
> req.setAttribute("bucketName", bucket.getName());
>
> resp.setContentType("text/html");
> RequestDispatcher jsp = req
> .getRequestDispatcher("upload.jsp");
> jsp.forward(req, resp);
> }
>
> @Override
> public void doPost(HttpServletRequest req, HttpServletResponse resp)
> throws IOException,
> ServletException {
> final Part filePart = req.getPart("file");
> final String fileName = filePart.getSubmittedFileName();
>
> // Modify access list to allow all users with link to read file
> List<Acl> acls = new ArrayList<>();
> acls.add(Acl.of(Acl.User.ofAllUsers(), Acl.Role.READER));
> // the inputstream is closed by default, so we don't need to close it
> here
> Blob blob =
> storage.create(
> BlobInfo.newBuilder(BUCKET_NAME,
> fileName).setAcl(acls).build(),
> filePart.getInputStream());
>
> // return the public download link
> resp.getWriter().print(blob.getMediaLink());
> }
>
> }
>
>
> I couldn't find explanation about this problem.
>
> Thanks.
>
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