Upload File in Web Dynpro Java CO and store it in the context

Hi Guys!
I have developed a web dynpro CO form, and I need to be able to upload a file in an action and then be able to download that file in further actions.. I have evaluated saving the file in the backend via RFC, in KM and also creating a CAF project.. but I think there must be a simpler way : saving it in the context of GP.
Does someone knows if it is possible to do that?
best regards,
Marco.

Hi Marco
In webdynpro java, there are UI elements File Upload and File Download. You can use these UI's to upload and download attachments. From NetWeaver 7.0 onwards, you have IWDResource interface which can be used to upload attachments. But in GP if you want to pass attachment to another action you must use Binary as a data source. Bind the File upload UI element to Binary. In addition, you should define input and out parameters in getDescription method.
Thanks
Ghazanfar

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Uploading CSV File into Web Dynpro Java Table and Write back to a Database

Hi Gurus!
I would like to upload a csv file and read the content into an UI table element.
Then, I need to write the uploaded file back to a database. I'm using NetWeaver 2004s.
could you please provide advice for both, uploading and wirting to databse (e.g. maxDB or oracle), since I'm quite new in WDJ.
thanks in advance.
farid
ps. helpfull answers will be rewarded with points!

Hi ,
have look at this blog
https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/6603. [original link is broken] [original link is broken] [original link is broken]
Have a look at this links.
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/00062266-3aa9-2910-d485-f1088c3a4d71.
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/c0d9336b-b4cf-2910-bdbf-b00d89bd2929.
Re: Popup Internal Window - data type IWDWindow not available
Regards,
krishna.

Reading contents of uploaded excel file in web dynpro java

Hi All.
I am aware how to provide facility to upload files in web dynpro java. But my requirement is that on uploading a particular file (for eg. an excel file having 10 columns), I need to read the contents of that file and store it in a table in R/3.Can anyone suggest a way how I can read the contents of the uploaded file?
Thanks and Regards,
Saurabh.

Hi.
I am having the following requirement : I have a FileUpload UI element where user clicks Browse button, selects a file from the local system and presses a Upload button. Upon pressing Upload, the name of the selected file and the contents of the file should be shown.
In the View context, I have two value attributes: FileName of type String and FileResource of type binary.
This is the code that I have in the Upload button action handler :
public void onActionUpload(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )
    //@@begin onActionUpload(ServerEvent)
    IWDAttributeInfo attributeInfo = wdContext.getNodeInfo().getAttribute(
             IPrivateReadExcelView.IContextElement.FILE_RESOURCE);
    IWDModifiableBinaryType binaryType = (IWDModifiableBinaryType)attributeInfo.
             getModifiableSimpleType();
    IPrivateReadExcelView.IContextElement element = wdContext.createContextElement();
    String fname = binaryType.getFileName();
    wdComponentAPI.getMessageManager().reportSuccess("File selected - "+fname); //Statement 1
     try {
          wdComponentAPI.getMessageManager().reportSuccess("Successful");    // Statement 2
          InputStream in = new FileInputStream(fname);
          HSSFWorkbook wb = new HSSFWorkbook(in);
          wdComponentAPI.getMessageManager().reportSuccess("Successful");    //Statement 3
          int sheetsNo = wb.getNumberOfSheets();
          for (int i=0;i<sheetsNo;i++) {
               HSSFSheet sheet = wb.getSheetAt(i);
               Iterator rowsNo = sheet.rowIterator();
               while(rowsNo.hasNext()) {
                    HSSFRow rows = (HSSFRow)rowsNo.next();
                    Iterator colsNo = rows.cellIterator();
                    while(colsNo.hasNext()) {
                         HSSFCell cell = (HSSFCell)colsNo.next();
                         wdComponentAPI.getMessageManager().reportSuccess("File uploaded" +
                              "successfully");
                         if(cell.getCellType()==1) {
                              wdComponentAPI.getMessageManager().reportSuccess("00000"+
                                   cell.getStringCellValue());
                         else if(cell.getCellType()==0) {
                              String str=""+cell.getNumericCellValue();
                              wdComponentAPI.getMessageManager().reportSuccess("11111"+str);
     catch(Exception e) { wdComponentAPI.getMessageManager().raisePendingException();
    //@@end
On pressing Upload button, name of selected file is being shown(Statement 1). I am also getting Statement 2 in the output. However I am not getting Statement 3 onwards.
Where am I going wrong? Can anyone shed some light on this?

File Visibility in uploading the file using web DynPro java

hello,
i have gone through the tutorial " uploading & downloading the file using web DynPro java".
the upload functionalty is working fine. but i need to know thw path where these files are getting uploaded ??
Waiting for the reply..
Regards,
Viren Gupta

Hi Viren,
Are you are refering to the below tutorial for upload and download:
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/b0e10426-77ca-2910-7eb5-d7d8982cb83f?QuickLink=index&overridelayout=true
If yes, then answer is that the file is stored in the context of the application only as "com.sap.ide.webdynpro.uielement-definitions.Resource" object. Please read through the tutorial to understand the full process.
WD doesn't really upload to server automatically unless there is any explicit code written. All it does is to store the file in a temp context which you can access and write your own code to store it in a particular location.
Regards,
Mahesh

Upload file in Web Dynpro and add to Workflow container as SOFM object

Hi!
I have a Web Dynpro for ABAP application that should send attachments of uploaded files to a workflow container. I have already managed to do this, and it works fine for TXT files, but when I try to attach a WORD (.DOC) file the file looks corrput when I open it from the SAP inbox.
When uploading files in Web Dynpro it is as an XSTRING. I have tried out the following alternatives regarding convertion of the XSTRING before it is inserted in the SOFM object:
1) Convert from XSTRING to STRING using codepage 4110.
Then it is split into a string table of 255 chars
2) Convert from XSTRING to STRING using codepage 4102
Then it is split into a string table of 255 chars
3) Convert from XSTRING to BINARY format
I use function module 'SWL_SOFM_CREATE_WITH_TABLE'
and then swf_create_object lr_sofm 'SOFM' ls_sofm_key.
before I call some macros to fill the container.
Anyone else who have tried to do this with success? I'm greatful for any help.
Regards, Tine

Hi,
I had the same problem in the last days and finally I got a quite simple solution:
I had a look at the FM SWL_SOFM_CREATE_WITH_TABLE an noticed that it calls another FM (SO_DOCUMENT_INSERT_API1) which has a tables parameter for HEX data and is actually able to create a SOFM object from HEX data.
I simply copied SWL_SOFM_CREATE_WITH_TABLE as a customer FM and applied a few changes to make it accept HEX data:
First I added a new table parameter in the interface which gets the HEX data from the calling application (uploaded data using BIN format):
OBJECT_CONTENT_HEX     LIKE     SOLIX
Here is the code of the FM (I marked all additional and changed lines with a comment):
function z_test_sofm_create_with_table .
*"*"Lokale Schnittstelle:
*" IMPORTING
*"     VALUE(NOTE_TITLE) LIKE SODOCCHGI1-OBJ_DESCR OPTIONAL
*"     VALUE(DOCUMENT_TYPE) LIKE SOODK-OBJTP DEFAULT SPACE
*" EXPORTING
*"     VALUE(SOFM_KEY) LIKE SWOTOBJID-OBJKEY
*" TABLES
*"      NOTE_TEXT STRUCTURE SOLISTI1 OPTIONAL
*"      OBJECT_CONTENT_HEX STRUCTURE SOLIX OPTIONAL
*" EXCEPTIONS
*"      ERROR_SOFM_CREATION
data: region like sofd-folrg.
data: folder_id like soodk.
data: l_folder_id like soobjinfi1-object_id.
data: document_data like sodocchgi1.
data: document_info like sofolenti1.
data: object_content like solisti1 occurs 0 with header line.
data: lines like sy-tabix.
*- set default
if document_type is initial.
    document_type = 'RAW'.
endif.
*- create office object
*-- get dark folder
region = 'B'.
call function 'SO_FOLDER_ROOT_ID_GET'
    exporting
      region                = region
    importing
      folder_id             = folder_id
    exceptions
      communication_failure = 1
      owner_not_exist       = 2
      system_failure        = 3
      x_error               = 4
      others                = 5.
if sy-subrc ne 0.
    message e696(wl)                       "<== Add message class
            raising error_sofm_creation.
endif.
*- get description
if note_title is initial.
    read table note_text index 1.
    note_title = note_text.
endif.
*-- create office document
document_data-obj_name = 'ATTACHMENT'.
document_data-obj_descr = note_title.
document_data-obj_langu = sy-langu.
object_content[] = note_text[].
describe table object_content lines lines.
document_data-doc_size = ( lines - 1 ) * 255 + strlen( object_content ).
if object_content[] is initial.                     "<== insert
    describe table object_content_hex lines lines.    "<== insert
    document_data-doc_size = lines * 255.             "<== insert
endif.                                              "<== insert
l_folder_id = folder_id.
call function 'SO_DOCUMENT_INSERT_API1'
    exporting
      folder_id                  = l_folder_id
      document_data              = document_data
      document_type              = document_type
    importing
      document_info              = document_info
    tables
      object_content             = object_content
      contents_hex               = object_content_hex   " <== Insert line
    exceptions
      folder_not_exist           = 1
      document_type_not_exist    = 2
      operation_no_authorization = 3
      parameter_error            = 4
      x_error                    = 5
      enqueue_error              = 6
      others                     = 7.
if sy-subrc ne 0.
    message e696(wl)                              "<== Add message class
            raising error_sofm_creation.
endif.
*- set export parameter
sofm_key = document_info-doc_id.
endfunction.
The returned SOFM key I added to a container element. The element refers to event parameter of type OBJ_RECORD in my ABAP OO Class
Using this function I was able to raise an event by using Method cl_swf_evt_event=>raise
that invoked a workitem containing an Excel-File i had uploaded as binary file and passed to the FM z_test_sofm_create_with_table as document type 'XLS'.
In the woritem preview when clicking on the attachment the file was opened directly in Excel.
Actually the new lines for calculation the file size is not yet quite correct. At first glance it does not seem to cause any trouble, but I will stll check that. In FM SO_OBJECT_INSERT the size is again checked and calculated if initial, so leaving size initial might also be an option.
I hope this helps anyone having a similar issue.
Greetings,
Michael Gulitz

Portal Eventing between Web DynPro Java iView and non-Web DynPro iView

Dear Experts,
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String param = "test";
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function notifyTest(param)
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Note:
1. When Web DynPro Java iView fire the portal event the entire page is refreshed, including the non-WDP iView.
2. When EPCM is replaced with window.top.EPCM, the page is refreshed, it is totally hanged with progress bar.
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hi
Please write the below code snippet in ur jsp for notifyTestjavascriptfunction
function notifyTest( eventObj ) {
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Thanks
Harsimran

HI Masters , I need information for file upload program in web dynpro java

Hi masters,
i need some inforamtion and documentation on file upload program in web dynpro java

Hi surya,
You can follow this procedure to upload the file
i) Take One Context Attribute named as "D1" of Type "binary".
ii) Take one FileUpload UI Element in the Layout Tab.
iii) Bind FileUpload UI Element's data Property to the taken Context Attribute. Here it is "D1".
iv) Take one Button UI Element in the Layout Tab named "Upload" and in the Action of that Button write the following Code.
v) The following code Generates one Folder in the Server & inside that Folder given file is Uploaded.
File ff=new File("FolderXYZ"); // Creates One Folder with the given Name ( Here Folder name is "FolderXYZ")
ff.mkdir();
try
byte b[]=null;
IWDAttributeInfo objAttinfo=null;
IWDModifiableBinaryType binType=null;
File f=null;
FileOutputStream fos=null;
if(wdContext.currentContextElement().getD1()!=null)
b=wdContext.currentContextElement().getD1();
objAttinfo=wdContext.getNodeInfo().getAttribute(IPrivateAttachView.IContextElement.D1);
binType=(IWDModifiableBinaryType)objAttinfo.getModifiableSimpleType();
f=new File(ff.getName()+"
"+binType.getFileName());
fos=new FileOutputStream(f);
fos.write(b);
fos.flush();
fos.close();
objMessageManager.reportSuccess("File uploaded to server");
} catch (Exception e)
objMessageManager.reportException("Unable to upload file to server, error is:"+e,false);
return;
The Uploaded file is stored in the folder & that folder is stored in the Server's following Path.
<Your Server>\c$\usr\sap\J2E\JC00\j2ee\cluster\server0
You can access your Uploaded file from the following Path
<Your Server>\c$\usr\sap\J2E\JC00\j2ee\cluster\server0\FolderXYZ
Regards
Sagar Ingalwar

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Hello,
I have read thorugh a lot of documentation, threads, ... --> but the picture is not geting clearer fro me.
We have Web Dynpro Java Application (on Netweaver 7.0 SP12) running in Enterprise Portal. We need to tell the portal work protect mode, that we have unsaved changes (how to do this is clear).
I am struggling with figuring out, that my Web Dynpro Context has unsaved changes. I found the two change-indicators isChanged() and isChangedByClient(), which already confuses me a little bit.
Anyway, this is what I have figured out so far:
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I then tried calling wdContext.nodeABC().getElementAt(i).isChanged() for all nodes of my Web Dynpro Context, but this results in detecting changes before the user ha done any interaction.
Implementing an own change tracking (i.e. by adding a changed-Attribute to each context node) does not seem a viable option for me.
So these are my questions:
- Does anyone now a working pattern relying on those chnage indicators ?
- Does anyone now how to reset the isChanged indicator (or when it is resetted by the framework) ?
Any help appreciated.
Thank you,
Stefan

Hi
Check this link
Re: How to keep isChangedbyClient flag set between roundtrips?
http://help.sap.com/javadocs/NW04/current/wd/com/sap/tc/webdynpro/progmodel/api/IWDNodeElement.html
Thanks

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Friends,
I have a requirement where I want my Web Dynpro Java application to support BRAZIL and CHINESE.
I have been through the sample programs and tutorials and I understand how to support my application in these 2 languages. The challenge I am facing is how to communicate the language to the backend code (ABAP function modules) so that the function modules can written language specific error messages and texts.
I searched SDN but could not find anything. Your help is appreciated.

Prashant,
When you are configuring JCo connection in WebDynpro Content Administrator, just left language settings blank for metadata connection (you may do the same for data connection). Now WD will supply language of currently logged-in user when obtaining connection settings from system landscape and you'll get necessary functionality.
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Btw, BRAZIL (or Portugees for this matter) is not fully supported language by SAP, so R/3 side may be not translated or partly translated.
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SaM Solutions
http://www.sam-solutions.net

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Hi
Can any body give Suggestions that is how to copy or import Row and Column Values in the Excel file to the Java Web Dynpro Table
Regards
Chandran S

Hi,
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ind a Resource variable to FileUpload UI. Then from the Fileupload UI, u can get the Sheet variable as
InputStream fis=wdContext.currentFileUploadElement().getResource().read(true);
Workbook wb=Workbook.getWorkbook(fis);
Sheet sh=wb.getSheet(0);
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     String bId=sh.getCell(2,i).getContents();
     String cId=sh.getCell(3,i).getContents();
     String subj=sh.getCell(4,i).getContents();
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Regards
Fahad Hamsa

Jar file in Web Dynpro Java Application!

Hi All:
I needed a Jar file in my WDJ App.
I am using SP16.
Can someone provide ideas/instructions on how to do this?
Thanks in Advance!

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Hope that helps.
I also hope I got everything right

Updating Database From csv File in Web Dynpro Java

Hi Gurus,
I'd like to write an WDJ where the (super-)user can upload a csv file and delta-update the content of this file witch an external database.
Could you please give some me hints & examples.
Thanks in advance,
Farid
ps. answers will be rewarded with points, of cource.

Hi Farid:
From your question it seems like you want to write a WDJ application which writes a CSV file after connecting to a database and everytime you do so, updates the file with the new record from the DB.
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Thanks,
LioneL

System Connection Test was not fully tested but all web dynpro java app and Transaction iviews working fine.Any problem for this Kind of activity Lets give some idea.

System Connection Tests
You can test the connectivity to the backend application represented by the current system object. Choose the relevant tests.
Note: The test is based on the properties currently defined in the system object. It does not check if the system properties are correct.
System Connection Tests
Test Name
Description
Status
SAP Web AS Connection
Tests the connection to an SAP Web Application Server
ITS Connection
Tests the connection to an SAP ITS server
Connection Test for Connectors
Tests the connection to a backend system using an associated connector
Test
Clear Results
Results
SAP Web AS Connection
Test Details:
The test consists of the following steps:
1. Checks the validity of system ID in the system object.
2. Checks if the system can be retrieved from the PCD.
3. Check whether a SAP system is defined in the system object
4. Validate the following parameters: WAS protocol; WAS host name
5. Checks if the host name of the server can be resolved.
6. Pings the WAS ping service; works only if the service is activated on the ABAP WAS.
7. Checks HTTP/S connectivity to the defined back-end application
Results
1. The system ID is valid
2. The system was retrieved.
3. The system object represents an SAP system
4. The following parameters are valid: Web AS Protocol (http) Web AS Host Name
5. The host name ssprdxi.stylespasapnet.com was resolved successfully.
6. The Web AS ping service was pinged successfully.
7. An HTTP/S connection to was obtained successfully.
ITS Connection
Test Details:
The test consists of the following steps:
1. Checks the validity of system ID in the system object.
2. Checks if the system can be retrieved from the PCD.
3. Check whether the system object has a valid system alias
4. Check whether a SAP system is defined in the system object
5. Validate the following parameters: ITS protocol; ITS host name
6. Checks if the host name of the server can be resolved.
7. Checks HTTP/S connectivity to the defined back-end application
Results
1. The system ID is valid
2. The system was retrieved.
3. Retrieval of the default alias was successful
4. The system object represents an SAP system
5. The following parameters are valid: ITS Protocol (http) ITS Host Name ()
6. The host name ssprdxi.stylespasapnet.com was resolved successfully.
7. An HTTP/S connection to was obtained successfully.
Test Connection with Connector
Test Details:
The test consists of the following steps:
1. Retrieve the default alias of the system
2. Check the connection to the backend application using the connector defined in this system object
Results
Retrieval of default alias successful
Connection failed. Make sure that Single Sign-On is configured correctly
regards
Antony

Hi Stefan,
This correct see SAP Note [947081|https://service.sap.com/sap/support/notes/947081]
If the locale for the Web Dynpro iView is changed in the portal (through portal personalization), this is not reflected in the running login session. The user needs to logoff and login again, in order to see the locale change in the Web Dynpro iView.
Regards,
Leo

Web Dynpro & Adobe Interactive Forms - how to update the context node

Hi Experts,
I got a WD Component with some context nodes that are mapped to some views and are filled in this views. These context nodes are the dataSource for the Interactive Forms. These forms are embedded in a view by UIElement Interactive Forms.
My problem is, everytime when I change the structure of the context nodes (i.e. there's an additional attribute necessary), I have to design new forms to get the context nodes linked to the form. My existing forms cannot handle updated context nodes.
The change in the context node is displayed on web dynpro side, in the dataSource view in UIElement property. But in TA sfp there is the old context node structure displayed without any change (i.e. in number of attributes).
My forms' layout type is ZCI Layout the interface is based on XML.
How can I easily update the forms' context node structure without creating new forms every time?
Thanks in advance,
Tan

ok, got it.
by double clicking on templateSource in UIElement properties the interface can be updated.
Regards from Murphy's Law.
Tan

How to extract the content of a user uploaded txt file in web dynpro?

Hi,
I'm working on a java web dynpro component. This component consists of document upload field, where users should be able to upload .txt documents. These uploaded text documents should then be somehow read, and thir content displayed. I am already able to upload documents using the upload field, and store it in the context, but I'm still not able to extract the content of these text documents for displaying.
Does anyone have any suggestions of how I could do this?
Any help will be greatly appreciated!
Thanks!

Hi Alain,
You can do through this document on how to upload/download files in Webdynpro.
[https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/202a850a-58e0-2910-eeb3-bfc3e081257f]
Once you have the uploaded file in your context if you are storing it as a byte array then convert it to a string using the String constructor String(byte[] bytes) and then you can store this string in an attribute of type String which could be bound to a UI element (TextArea) to display the contents.
If you are using an IWDResource then you will get an inputstream from which you can read the data and convert it to a string for display as mentioned above.
Hope this helps.
Sanyev

Upload File in Web Dynpro Java CO and store it in the context

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