Hi Kim
I am very new to GWT .
I have to make a web application which uploads the file.
The file can be of type .doc , .txt
The file size can be more then 1 MB.
I dont know how to do it.
Some body suggested me to use BolbStore. After suggesting he didnt replied
once also.
files used for BlobStore
*
import* javax.servlet.ServletException;
*import* javax.servlet.http.HttpServlet;
*
import* javax.servlet.http.HttpServletRequest;
*
import* javax.servlet.http.HttpServletResponse;
*import* com.google.appengine.api.blobstore.BlobKey;
*
import* com.google.appengine.api.blobstore.BlobstoreService;
*
import* com.google.appengine.api.blobstore.BlobstoreServiceFactory;
Plz help me . i am stuggling with this from a very long time.
On Thu, Mar 8, 2012 at 9:29 AM, kim young ill <khi...@googlemail.com> wrote:
> need to be more specific what your BlobstoreService is doing/used library
>
>
> On Wed, Mar 7, 2012 at 4:01 PM, learning coding <
> learning.codin...@gmail.com> wrote:
>
>> Hi all ,
>>
>> I have to make webapplication using java,
>> I have to upload a file which is bigger then 1MB .
>> Actually i need the contentStream of the file and the value of the
>> textBox which is on the FormPanel ,on the myProject.server side .
>>
>> The file can be of .txt and .doc type.
>>
>> Somebody suggested me to use BolbStore.
>>
>>
>> My Code :
>>
>> Code
>> client
>> // Get The URL
>> public void onClick(ClickEvent event) {
>> System.out.println("blob" +blobServices);
>> blobServices
>> .getBlobStoreUploadUrl(callback) ;
>> }
>> });
>>
>> //
>> ..Some more code
>>
>> public void onSubmitComplete(SubmitCompleteEvent event) {
>>
>> Window.alert(event.getResults());
>> }
>>
>> });
>>
>> The above RPC call is working fine i am able get the URL.
>> Now i have to use this URL with servlet which is used to upload a
>> file.
>>
>> AsyncCallback callback = new AsyncCallback() {
>>
>> public void onFailure(Throwable caught) {
>> // TODO Auto-generated method stub
>> caught.printStackTrace();
>> }
>>
>> public void onSuccess(Object result) {
>> String tmp = result.toString();
>> uploadForm.setAction(tmp);
>>
>> // Submit the form to complete the upload
>> uploadForm.submit();
>> uploadForm.reset();
>> }
>> };
>>
>> On server Side
>>
>> public class UploadServiceImpl extends HttpServlet {
>>
>> BlobstoreService blobstoreService =
>> BlobstoreServiceFactory.getBlobstoreService();
>>
>> public void doPost(HttpServletRequest req, HttpServletResponse
>> res)
>> throws ServletException, IOException {
>>
>> Map<String, BlobKey> blobs =
>> blobstoreService.getUploadedBlobs(req);
>> BlobKey blobKey = blobs.get("upload");
>>
>> if(blobKey == null){
>> res.sendRedirect("/");
>> }else{
>> res.sendRedirect("/serve?blob-key="
>> +blobKey.getKeyString());
>> }
>> }
>>
>> }
>>
>> With this Code I am able to view only the .txt file on
>> Window.alert(event.getResults());
>> and also the size of .txt file is greater then 2 MB.
>>
>> But when i submit the xyz.doc file it gives option to save file and
>> also the name of the file xyz.doc is changed to serve.doc
>> the size of the file is 130 KB.
>>
>> Plz tell me what to do. file can be of type .txt or .doc with size
>> greater then 1 MB.
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "Google Web Toolkit" group.
>> To post to this group, send email to google-web-toolkit@googlegroups.com.
>> To unsubscribe from this group, send email to
>> google-web-toolkit+unsubscr...@googlegroups.com.
>> For more options, visit this group at
>> http://groups.google.com/group/google-web-toolkit?hl=en.
>>
>>
> --
> You received this message because you are subscribed to the Google Groups
> "Google Web Toolkit" group.
> To post to this group, send email to google-web-toolkit@googlegroups.com.
> To unsubscribe from this group, send email to
> google-web-toolkit+unsubscr...@googlegroups.com.
> For more options, visit this group at
> http://groups.google.com/group/google-web-toolkit?hl=en.
>
--
You received this message because you are subscribed to the Google Groups
"Google Web Toolkit" group.
To post to this group, send email to google-web-toolkit@googlegroups.com.
To unsubscribe from this group, send email to
google-web-toolkit+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-web-toolkit?hl=en.
