Download the Blob in ADF

Similar Questions

• Download the XML query ADF Table line

  I have a request to adf with the data obtained in the adf table that has a column 'ID' with a link. How to get the value of link ID selected in the bean class and download the XML from DB?

  Java (TM) Platform	1.7.0_51
  Oracle IDE	12.1.3.0.41.140521.1008

  Here's the Code to work. Thanks for all the help.

  And the Bean.download)

  inputstream = blobdomain.getInputStream();
  // copy blob to output
  byte[] buffer = new byte[4096];
  int nread;
  while ((nread = inputstream.read(buffer)) != -1) {
    outputStream.write(buffer, 0, nread);
  }
  outputStream.close();
  outputStream.flush();
  inputstream.close();
  blobdomain.closeInputStream();
  

• Download the Blob file

  I use ADF BC, Jdeveloper11g 1.1.1.4
  
  in my application, I need the list down all the files stored in the Blob from a database table field in the af: table, if the user clicks on the name of the file that is linked to af:link, then the file will be opened to show the user the contents of the file.
  
  There is a sample built in 10g of http://technology.amis.nl/blog/category/oracle/adf-jheadstart, but only limited to types of files as 'doc', 'pdf', 'excel '.
  
  I think there is a solution put forward 11 g and also not be limited only these three types of file upload & dwonload to & database right of files?
  
  Could you expert give me only a sample built in 11g to let me study, thank you very much!

  http://KR.forums.Oracle.com/forums/thread.jspa?threadID=1982213 - looks like, you may need to change the contentType depending on the use case

• fileDownloadActionListener download the PDF in ADF 11

  Hello
  
  I have a requirement to download the PDF file on the file system. I use fileDownloadActionListener. I use the following code.
  
  < af:commandLink text = "Download the stored PDF file" >
  < af:fileDownloadActionListener filename = ' #{rank. " «First name} .pdf»
  contentType = application/pdf"; Charset = UTF-8 ".
  Method = "#{FindReports.reportPDFDownload}" / >
  < / af:commandLink >
  
  Managed code bean
  
  public void reportPDFDownload (FacesContext facesContext,
  OutputStream outputStream) throws IOException {}
  OutputStreamWriter w = new OutputStreamWriter (outputStream, "UTF - 8");
  InputStream in = getReportDocument(); extract data from DB
  System.out.println ("input file is:" + in);
  ubyte [] buffer = new byte [DEFAULT_BUFFER_SIZE];
  int length;
  While ((length = in.read (buffer)) > 0) {}
  w.Write (buffer. ToString());
  }
  w.Flush ();
  w.Close ();
  }
  
  
  When I open the file downloaded, it says file corrupted or not properly decoded. I checked the size of the file, it is 10 bytes.
  
  Could anyone suggest me how to solve the problem?
  
  Thank you
  Reena

  Hello, Reena. Try this code fragment:

  BufferedOutputStream bos = new BufferedOutputStream (outputStream);

  Byte [] buff = new ubyte [DEFAULT_BUFFER_SIZE];
  int bytesRead;

  While (-1! = (bytesRead = is.read (buff, 0, buff.length))) {}

  Bos.Write (buff, 0, bytesRead);

  }
  Bos.Flush ();
  Bos.Close ();

  Kind regards
  Eugene

• Manually download the blob file in apex

  Hello

  
  Currently, I load csv files in a table via an apex user interface. The table that contains the data is constructed as follows:

  TBL_UPLOADS

  (

  ID NOT NULL

  BLOB_CONTENT BLOB

  MIME_TYPE VARCHAR2 (255)

  NAME VARCHAR2 (255)

  LAST_UPDATED DATE

  CHARACTER_SET VARCHAR2 (128)

  )

  I have an automatic line (DML) process that defines the operations allowed on the table. In my case, it's only "insert." I also mentioned here a condition that the process runs only when you press the UPLOAD button. I also filled all the attributes of source as Element containing primary key column value (required) etc.

  I also have a DOWNLOAD button. In the section Action when the button clicked on this button the following applies:

  Action: SEND the PAGE

  Run validations: YES
  Action of the databases: ACTION of INSERT SQL

  It all works just fine. I just want the action to the database manually because I want to do more things then just insert. First thing I need to do is to replicate. It is where I am confused. Now I know I need to use a dynamic action for this. I don't know how to insert values into my tbl_uploads (the query insert himself). I looked at examples such as Denes Kubicek - ApEx Solutions , but I do not use the wwv_flow_files table. On the other hand, looks like a history of chickens and eggs for me because I need to insert data in my table (uploads) first.

  
  Can someone put back me on track?

  You can have multiple processes that have the same State (same IE "when button pressed")

  Thus, when BUTTON_X is pressed, all the processes that meet the condition will run accordingly.

  On this particular page, the first process is the Excel2Collection plugin.  This loads the data in a Collection of the APEX.

  The next process uses a PL/SQL code that transforms and loads data in the actual table.

  The two processes have the Condition "when button pressed" defined on the same button. (P19_UPLOAD)

  MK

  (I don't like the view of 'the tree')

  

  Details of the process ' file in the Collection ': ('Collection of process' process is identical)

  

• Download the BLOB table

  Hello
  
  How can I download BLOB table. On my page, I use a table with a row displaying the name of the file and I put the af:commandlink type. It is possible with af:fileDownloadListener?

  Hello

  In your table, add a new column

  You supporting bean (myBean) add this method and replace my your values (name, attribute name iterator)

    public void downloadFileAction(FacesContext ctx, OutputStream out) {
  
        ExternalContext ectx = ctx.getExternalContext();
        Row currentRow = ADFUtils.findIterator("MyIterator").getCurrentRow();
        String fileName = (String)currentRow.getAttribute("FileName");
        BlobDomain content =  (BlobDomain)currentRow.getAttribute("FileContent");
        Long length = content.getLength();
  
        HttpServletResponse response = (HttpServletResponse)ectx.getResponse();
        response.setHeader("Content-Disposition", "attachment;filename=\"" + fileName + "\"");
        response.setContentLength(length.intValue());
        try {
            InputStream in = content.getBinaryStream();
            byte[] buf = new byte[1024];
            int count;
            while ((count = in.read(buf)) >= 0) {
                out.write(buf, 0, count);
            }
            in.close();
            out.flush();
            out.close();
            ctx.responseComplete();
         } catch (IOException ex) {
            ex.printStackTrace();
        }
  
    }
  

  Concerning

  Nicolas

• Download the BLOB form

  I have a form with a BLOB column. The column is set to "Browse file". In the value of the source or the expression of the column, it is on:
  
  'STUDENT_DOCUMENT:attachment:Download '.
  
  After loading the data and view the page, the 'Download' link poster. I can upload most file types, but when I try to download a word doc, it does not work. I see this in the download dialog box
  
  'Type - unknown file type '.
  
  I checked the mimtype in the DB and it has the value "application/msword".

  Have you thought about trying to add the mime_type column in the format for the field of file mask?

  See: http://www.oracle.com/technology/obe/apex/apex31nf/apex31blob.htm#t3

  Trent

• Download the content of the BLOB from a custom table

  In our application hosted the apex, the following code from the Express on the Application Developer's Guide works great to allow a user to download the contents of the blob of one of our paintings customized via a download button. However, the code does not work on the Cloud Oracle because the 'owa_util' package is no longer available. The code is as follows:
  
  CREATE OR REPLACE PROCEDURE download_my_file (p_file in number) AS
  v_mime VARCHAR2 (48);
  V_LENGTH NUMBER;
  v_file_name VARCHAR2 (2000);
  Lob_loc BLOB;
  BEGIN
  Name of SELECT MIME_TYPE, BLOB_CONTENT, DBMS_LOB. GETLENGTH (blob_content)
  IN lob_loc, v_file_name, v_mime, v_length
  OF file_subjects
  WHERE id = p_file;
  --
  -set up the HTTP header
  --
  -Use a NVL around the mime type and
  -If it is null it the value application/octect
  -application/octect can initiate a download of windows window
  owa_util.mime_header (nvl(v_mime,'application/octet'), FALSE);
  
  -set the size so that the browser knows how to download
  HTP.p ("Content-length: ' |") v_length);
  -the name of the file will be used by the browser if users only one save as
  HTP.p ('Content-Disposition: attachment; filename = "" | ") Replace (Replace (substr (v_file_name, InStr(v_file_name,'/') + 1), Chr (10), null), Chr (13), null). '"');
  -close the headers
  owa_util.http_header_close;
  -Download the BLOB
  wpg_docload.download_file (Lob_loc);
  end download_my_file;
  /
  
  In addition to the use of web services, does anyone know how to do this? Is it possible to add access to the package 'owa_util' in the cloud? I also tried apex_util.get_blob_file_src but that is also not available in the Oracle cloud.
  
  Thank you
  
  Steve

  Hi Steve,.

  (1) sys.owa_util is certainly available. You should be able to issue this block very well SQL commands:

  Start
  owa_util.print_cgi_env;
  end;

  ((2) I think the problem is that you have created a procedure that a) cannot not be granted run to the PUBLIC and b) cannot be called directly from the URL (because of a properly locked APEX listener which restricts entry points, i.e..) What procedures can be called directly from the URL).

  Even if there was no prohibition of granting something to the PUBLIC, you would never get by the restriction on the call of your own point of entry of the URL. Also in a facility non - Cloud APEX (and even when you're using mod_plsql), the list of entry points is applied through the PlsqlRequestValidationFunction (http://docs.oracle.com/cd/E23943_01/web.1111/e10144/under_mods.htm#HSADM698).

  Two ways around this:

  (1) you can define a request of the process which, when called, downloads the requested file

  or

  (2) you may want to expose this functionality via a RESTful Service of media resources, even though right now, I'm not necessarily details how you would ensure access to it.

  I hope this helps.

  Joel

• Download the procedure not found on the server.

  Hello
  
  I created a feature to download files using the Oracle (http://download.oracle.com/docs/cd/B31036_01/doc/appdev.22/b28839/up_dn_files.htm#CIHBFCDH) tutorial. The files are copied from the flow table in a custom table named SR_ATTACHMENTS with the following structure:
  
  Default primary key Type Nullable data column name
  IMAGE_ID NUMBER - 1
  NAME VARCHAR2 (60) Yes.
  Filename VARCHAR2 (60) Yes.
  Mime_type VARCHAR2 (60) Yes.
  DOC_SIZE NUMBER Yes-
  CREATED_BY VARCHAR2 (255) Yes.
  DATE of CREATED_ON Yes-
  Content_type VARCHAR2 (60) Yes.
  BLOB BLOB_CONTENT Yes-
  REQ_ID NUMBER Yes-
  
  
  There is a file record in the SR_ATTACHMENTS table:
  
  SELECT MIME_TYPE, BLOB_CONTENT, filename, DBMS_LOB. GETLENGTH (blob_content)
  OF SR_ATTACHMENTS
  WHERE IMAGE_ID = '41090122232687300';
  
  Results:
  'MIME_TYPE', 'BLOB_CONTENT', 'FILENAME', 'DBMS_LOB. GETLENGTH (BLOB_CONTENT).
  ' application/pdf', "[no support for data type]", "relish_menu.pdf", "90353"
  
  
  Here is the link which is built in the apex in the column links:
  
  #OWNER # .file_download? p_index = #IMAGE_ID #.
  
  
  Here is the link as it appears on the page when the cursor is placed:
  
  http://My_server:7777/pls/Apex/PRSVCREQDEV.file_download?p_index=41090122232687300
  
  
  
  When the user clicks on the link, I get the following error:
  Not found
  The requested URL /pls/apex/PRSVCREQDEV.file_download was not found on this server.
  
  
  
  Here is the procedure:
  
  CREATE OR REPLACE PROCEDURE file_download (p_file in number) AS
  v_mime VARCHAR2 (48);
  V_LENGTH NUMBER;
  v_file_name VARCHAR2 (2000);
  Lob_loc BLOB;
  BEGIN
  SELECT MIME_TYPE, BLOB_CONTENT, filename, DBMS_LOB. GETLENGTH (blob_content)
  IN lob_loc, v_file_name, v_mime, v_length
  OF SR_ATTACHMENTS
  WHERE IMAGE_ID = p_file;
  --
  -set up the HTTP header
  --
  -Use a NVL around the mime type and
  -If it is null it the value application/octect
  -application/octect can initiate a download of windows window
  owa_util.mime_header (nvl(v_mime,'application/octet'), FALSE);
  
  -set the size so that the browser knows how to download
  HTP.p ("Content-length: ' |") v_length);
  -the name of the file will be used by the browser if users only one save as
  HTP.p ('Content-Disposition: attachment; filename = "" | ") Replace (Replace (substr (v_file_name, InStr(v_file_name,'/') + 1), Chr (10), null), Chr (13), null). '"');
  -close the headers
  owa_util.http_header_close;
  -Download the BLOB
  wpg_docload.download_file (Lob_loc);
  end file_download;
  /
  
  
  Grants are:
  
  Name of the constituent object of the privilege dealer
  NO PUBLIC PERFORMANCE NO PRSVCREQDEV FILE_DOWNLOAD
  
  
  Any help is greatly appreciated!
  
  Thank you
  Matt

  Hello

  No problem, by the way, don't forget you can assign points to get useful answers here ;)

  John
  --------------------------------------------
  Blog: http://jes.blogs.shellprompt.net
  Work: http://www.apex-evangelists.com
  Author of Pro Application Express: http://tinyurl.com/3gu7cd

• Download the image blob field

  Hello experts,

  I am trying to download an image via the input file to convert it to a blob field and then save it in the database.

  So I linked the value of the input file to create the blob through bean, I found on the internet.

  My Page binding components:

  < af:inputFile id = value = "#{UploadBean.file}" / 'inputImage' >

  < af:button text = 'Upload' id = 'btnUpload' action = "#{UploadBean.uploadImage}" / >

  
  

  My Bean:

  
  

  private BlobDomain img;

  private UploadedFile inasmuch;

  public UploadBean() {}

  Super();

  }

  public UploadedFile getFile() {}

  return inasmuch;

  }

  {} public void next (file UploadedFile)

  Inasmuch = file;

  }

  public void uploadImage() {}

  UploadedFile myfile = (UploadedFile) this.getFile ();

  IMG = createBlobDomain (myfile);

  System.out.println (IMG);

  }

  Private BlobDomain createBlobDomain (file UploadedFile) {}

  InputStream in = null;

  BlobDomain blobDomain = null;

  OutputStream out = null;

  try {}

  in = file.getInputStream ();

  blobDomain = new BlobDomain();

  out = blobDomain.getBinaryOutputStream ();

  ubyte [] buffer = new byte [8192];

  int bytesRead = 0;

  While ((bytesRead = in.read (buffer, 0, 8192))! = - 1) {}

  out. Write (buffer, 0, bytesRead);

  }

  in. Close();

  } catch (IOException e) {}

  e.printStackTrace ();

  } catch (SQLException e) {}

  e.fillInStackTrace ();

  }

  Return blobDomain;

  }

  But it seems to me that the file is still set to null after choosing an image, because it throws the following error message:

  <oracle.adf.common> <AdfDiagnosticsJarsVersionDumpImpl> <executeDump> <Pfad für den Dump der JAR-Version :C:\Users\user\AppData\Roaming\JDeveloper\system12.1.3.0.41.140521.1008\DefaultDomain\servers\DefaultServer\adr\diag\ofm\defaultdomain\defaultserver\incident\incdir_45/adf_DiagnosticsJarsVersionDump42_i45.txt>

  < oracle.dfw.impl.incident.DiagnosticsDataExtractorImpl > < DiagnosticsDataExtractorImpl > < createADRIncident > < 46 event mit Problemschlussel 'ADFC-00032 [ADFc]' is >

  < oracle.adf.view > < RichExceptionHandler > < _logUnhandledException > < ADF_FACES - 60098:Faces - empfangt nicht behandelte Exceptions in Phase INVOKE_APPLICATION 5 cases >

  javax.faces.FacesException: #{UploadBean.uploadImage}: //C:/Users/user/AppData/Roaming/JDeveloper/system12.1.3.0.41.140521.1008/o.j2ee/drs/REA/ViewPflegeWebApp.war/de/test/viewpflege/pages/UploadPage.jsff @13,85 action = "#{UploadBean.uploadImage}": java.lang.NullPointerException "

  ...

  What I'm missing or doing wrong?

  Uusing JDeveloper 12.1.3

  Thank you!

  Hello

  Make sure that the UsesUpload of the property in your page jspx is true.

  also, for more information check this: https://tompeez.wordpress.com/2011/11/26/jdev11-1-2-1-0-handling-imagesfiles-in-adf-part-1/

  Kind regards

  Habib

• Download the ADF works for a time the frist

  I have a ADF table to JSF page which is bounded to the View Object which contains the files downloaded to the user. This View Object contains all the information needed to download a file like blob domain , file type and file name . For each line, there is a download button that allows the user to download the selected file.

  All work of things perfectly for the first time. Problem is when the download user press some file it already download it, the file get damaged. The file appears in the download section for the browser, but when I tried to open it it says the file cannot be opened because the file format or file extension is not supported.

  I use Jdeveloper with ADF technology 11.1.2.3

  This is the button in the JSF page:

  <af:column id="c31">
  <af:commandButton text="Download" id="cb12" partialSubmit="true">
     <af:fileDownloadActionListener method="#{ITDetalisBean.downloadSelectedFile}"
    filename="#{row.FileName}" contentType="#{row.FileType}"/>
  </af:commandButton>
  </af:column>

  As you can see the button is placed in <af:column> tag. So for each row file it is matching the download button.

  Here is the Bean method:

    public void downloadSelectedFile(FacesContext facesContext, OutputStream outputStream) 
  {
     // get the view object from the application module
     AppModuleImpl appM = (AppModuleImpl)(JSFUtils.getApplicationModule("AppModuleDataControl"));
     ViewObject fileUploadedVO = appM.findViewObject("UplodedFilesViewTransient1");
  
     // get the file content as blob domain from the current row
     BlobDomain blobDomain=(BlobDomain)fileUploadedVO.getCurrentRow().getAttribute("FileContn");
  
  
     // download the file using output stream
     try {
     HttpServletResponse response =
     (HttpServletResponse)FacesContext.getCurrentInstance().getExternalContext().getResponse();
  
     InputStream in = blobDomain.getBinaryStream();
    outputStream = response.getOutputStream();
  
     byte[] buf = new byte[1024];
     int count;
     while ((count = in.read(buf)) >= 0) {
    outputStream.write(buf, 0, count);
     }
  
    in.close();
    outputStream.flush();
    outputStream.close();
    facesContext.responseComplete();
  
  
     } catch (IOException ex) {
     System.out.println(ex.getMessage());
    ex.printStackTrace();
     } catch (Exception e) {
     System.out.println(e.getMessage());
    e.printStackTrace();
     }
  }

  In the end, try to call

  blobDomain.closeInputStream)

  blobDomain.closePutputStream)

• How to download the image of the BLOB, inline in new browser tab or window

  APEX V4.2.3

  I have an interactive relationship with a column of type blob download which is the inline value.  When I click on the link 'Download' the image automatically appears in the same window as the application of the APEX.  How do I download the image in a new tab in the browser?  I need to shake "target ="_blank"' somewhere but I don't know where that link structure is hidden."

  Here is the code for my download section in the interactive report.

  Select

  ....,

  decode (nvl (dbms_lob.getlength (BLOB_CONTENT), 0), 0, null,)

  "< img style =" border: 4px solid #CCC; " -moz-border-radius: 4px; -webkit - border-radius: 4px; » '||

  "src =" "|

  apex_util.get_blob_file_src ('P98_BLOB_CONTENT', image_id) |

  "' '" height = "100" width = "100" alt = "'. Name of FILE: ' "" title = "'. FILE name | " » / >")

  as detail_img,

  ....

  of ' #OWNER # '. " TIS_ATTACHMENTS ".

  ...

  Thanks in advance

  PaulP

  I suggest you

  SELECT ID, NAME,CASE WHEN NVL(dbms_lob.getlength(document),0) = 0
    THEN NULL
    ELSE CASE WHEN attach_mimetype like 'image%'
    THEN ''
    ELSE
    'Download'
    end
    END new_img
    FROM TEST_WITH_BLOB
  

• Not able to see the contents of the BLOB download link in report object

  Hello
  
  I have a report on a table, the columns of this table is of type blob.
  
  In the report of the blob column is showing.

  [datatype]

  I wanted a link by which we will be able to d/l the blob file.
  When I check the column to blob column attributes, I don't see "Content BLOB" download under number/Date Format link.
  We have Apex 4.1.1
  
  Should I change something, so that we can see "Content BLOB" download link?
  
  Thank you.

  Machan wrote:
  I tried. It just displays the length (integer).
  I don't always get the link!

  What is the value of the attribute Display as ?

  What happens if you enter a BLOB format directly mask as in the example in the docs:

  DOWNLOAD:EMP:RESUME:EMPNO::RESUME_MIMETYPE:RESUME_FILENAME:RESUME_LAST_UPDATE::attachment:Resume
  

  substituting the values of your table/application?

• ADF way to download the file?

  Hello
  
  I have been searching the forum on how to implement the functionality of file download and I found three options.
  
  1 manage the download of files yourself

  <af:commandButton text="Normal Download" id="cb1"
       actionListener="#{testFileDownload.normalDownload}"/>
        
      public void normalDownload(ActionEvent actionEvent) {
          // Add event code here...
          ExternalContext ectx =
              FacesContext.getCurrentInstance().getExternalContext();
          HttpServletResponse response = (HttpServletResponse)ectx.getResponse();

  2. with the help of the fileDownloadActionListener

  <af:commandButton text="FileDownload Listener" id="cb2">
       <af:fileDownloadActionListener method="#{testFileDownload.handleDownloadListener}"/>
  </af:commandButton>
  
      public void handleDownloadListener(FacesContext facesContext,
                                         OutputStream outputStream) {
       }

  Although in the docs, I saw a few notes on this tag.
  
  NOTE: a limitation of the fileDownloadActionListener tag exists in Internet Explorer if the file name is multibyte, as Japanese characters. If the file name is multibyte and does not contain an extension of ascii (.txt or .doc), then the name of the file will not correctly appear in the download area of the file.
  
  3 use a servlet to stream your file. (But I don't like this kind of things personally... I think!)
  
  I can't understand and find a resource on what is the way of the ADF actually download the file?
  
  I need assemble a file using Apache POI and IText to generate an Excel/PDF format.
  
  Which method should I choose or is there something else?
  
  JDEV 11G PS3
  
  Published by: Neliel December 21, 2011 18:02

  Have you checked Timo series to handle this
  [url http://tompeez.wordpress.com/2011/11/26/jdev11-1-2-1-0-handling-imagesfiles-in-adf-part-2/] JDev11.1.2.1.0: Manipulation of images/files ADF (part 2)

• Download the content of the blob object

  Hi all
  I am facing a problem when inserting content of the BLOB in the database.
  I have a table (table1) with cat (char) of following column PK, download BLOB, mimetype varchar (1000), type of file varchar (1000)
  To insert values in DB (table1), I use the following process here, it works fine
  BEGIN
  IF (: P9_X IS NOT NULL)
  THEN
  INSERT INTO table1 (cat, UPLOAD, MIMETYPE, FILETYPE)
  SELECT: p9_cat, blob_content, MIME_TYPE, Type_de_fichier FROM wwv_flow_files where name =: P9_X;
  END IF;
  END;
  
  But, when I tried to have some ID (number PK) in table1 with the process above, I am not able to insert values. During the creation of the process, it throws following error.
  INSERT INTO table1 (ID, UPLOAD, MIMETYPE, FILETYPE)
  SELECT DEL_SEQ. NEXTVAL, blob_content, MIME_TYPE, Type_de_fichier FROM wwv_flow_files where name =: P9_X;
  ORA-06550: line 6, column 24: PL/SQL: ORA-00932: incompatible data types: expected NUMBER obtained BLOB ORA-06550: line 5, column 7: PL/SQL: statement ignored
  
  Thank you.

  Hello

  If I understand correctly, your UPLOAD table column format is number and you try to insert a BLOB to it.

  Kind regards
  Jari