List the files from server

[Former Member]

Hi Experts,

I have a requirement in my application, that list out the files from the server in table and also delete the file. Pls specify the code.

Regards,

Kiruba.R

[Former Member · Accepted solution]

If you have the source file path (eg: dirpath\filename.txt), then its possible to upload a file without using the FileUpload UI element..

vinod

[Former Member]

Hi,

Could you be more specific about your requirement.

Regards

PG.

[Former Member]

Hi,

In my application, I have uploaded the files to the server. Next I have to display the uploaded files in the table as a linkTo action(e.g some 10 files).When I click the link the files conetent sholud display. After displaying the files, I need to delete the files from server one by one.

Regards,

Kiruba.R

[Former Member]

Hi

List all the files from server

 public void listServerFiles( )
  {
    //@@begin listServerFiles()
    wdContext.nodeFiles().invalidate();
    
    IPrivateExperimentView.IFilesElement element;
    
    java.io.File file = new java.io.File( "D:\\Test");
    
    File list[] = file.listFiles();
    for( int i = 0; i < list.length; i++)
    {
    	element = wdContext.createFilesElement();
    		element.setFileName( list[ i].getName());
    	wdContext.nodeFiles().addElement( element);
    }
    
    //@@end
  }

Display the selected file

 public void onActiondownload(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )
  {
    //@@begin onActiondownload(ServerEvent)
    IWDResource resource;
    String name = wdContext.currentFilesElement().getFileName();
    String path = "D:\\Test\\" + name;
	InputStream stream;
	try {
		stream = new FileInputStream(path);
		resource = WDResourceFactory.createResource( stream, name, 
						WDWebResourceType.UNKNOWN, true);
		stream.close();
		wdComponentAPI.getWindowManager()
					.createNonModalExternalWindow( resource.getUrl( 0), name).show();
	} catch (FileNotFoundException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	} catch (IOException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}

Delete the selected file

 public void onActiondeleteFile(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )
  {
    //@@begin onActiondeleteFile(ServerEvent)
    String path = "D:\\Test\\" + wdContext.currentFilesElement().getFileName();
    
    File file = new File( path);
    file.delete();
    listServerFiles();
    //@@end
  }

vinod

[Former Member]

Hi Vinod,

Thanks a lot for your solution. I cant get this line "listServerFiles" from deleted code.

Elaborate it pls.

Regards,

Kiruba.R

[Former Member]

Hi,

I think you have tried all the 3 methods in View Controller. The listServerFiles() method lists all the files in the server onces the delete operation is done. You can call this method in init() and in Delete Action..

vinod

[Former Member]

Hi Vinod,

Thanks a lot.I have one more doubt.Is it possible to upload the file to server without using the FileUpload UI element.If so pls say how to do it.

Regards

Kiruba.R

[nikhil_bose]

Usually web applications directly accessing client machines file system are restricted due to security concerns.

using a web dynpro, any kind of client file system access possible by File Upload/Download UI elements only.

nikhiL