Follow this question.
Is HSSF able to read Textbox from Excel, and how to?
I want to get the opposite action of following process.
"
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet s = wb.createSheet();
HSSFPatriarch patriarch = s.createDrawingPatriarch();
HSSFClientAnchor an1 = new HSSFClientAnchor(0, 0, 0, 0, (short) 1, 1,(short) 2,
2);
HSSFTextbox textbox1 = patriarch.createTextbox(an1);
textbox1.setString(new HSSFRichTextString("This is a test"));
"
Regards
Jim
-----Original Message-----
From: Leimbach, Johannes [mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 01, 2006 2:27 PM
To: POI Users List
Subject: AW: Extract Text From Excel
Hello,
first of all: I do have a first name. It's "Johannes", and I prefer being
called "Johannes" over "Leimbach". Thanks ;)
To your problem:
Can you provide more information about it? What's in the cells and where do
these errors come from?
As far as I know HSSF is not able to read formulas or macros from Excel.
Bye,
Johannes
-----Ursprüngliche Nachricht-----
Von: Feris Thia [mailto:[EMAIL PROTECTED]
Gesendet: Montag, 31. Juli 2006 18:01
An: POI Users List
Betreff: Re: Extract Text From Excel
Hello Suba, Michael and Leimbach,
Thanks for the responses... it greatly helps me. Especially to Leimbach, I
have used your wrapper and tested it with my application. It works great :)
But I have some warnings (attach below) ... . Is it a limitation of HSSF not
to be able to read some Excel format ?
[java] [WARNING] Unknown Ptg 14 (20) at cell (5,2)
[java] [WARNING] Unknown Ptg 14 (20) at cell (6,2)
[java] [WARNING] Unknown Ptg 14 (20) at cell (16,2)
[java] [WARNING] Unknown Ptg 14 (20) at cell (5,1)
[java] [WARNING] Unknown Ptg 14 (20) at cell (6,1)
[java] [WARNING] Unknown Ptg 14 (20) at cell (6,4)
[java] [WARNING] Unknown Ptg 14 (20) at cell (24,1)
[java] [WARNING] Unknown Ptg 14 (20) at cell (24,4)
[java] [WARNING] Unknown Ptg 14 (20) at cell (25,1)
[java] [WARNING] Unknown Ptg 14 (20) at cell (25,4)
[java] [WARNING] Unknown Ptg 14 (20) at cell (26,1)
[java] [WARNING] Unknown Ptg 14 (20) at cell (26,4)
[java] [WARNING] Unknown Ptg 14 (20) at cell (27,1)
[java] [WARNING] Unknown Ptg 14 (20) at cell (27,4)
And one more thins... so HSSF do not read the value of formulas ?
Regards,
Feris
On 7/31/06, Leimbach, Johannes <[EMAIL PROTECTED]> wrote:
>
> Hello,
>
> last week I wrote a wrapper class to facilitate text extraction from Excel
> files, please see the sourcecode below.
> Maybe this (or another example, don't care) should be posted on the POI
> homepage - I see very few beginner's documentation there.
>
> Anyway, here's the class, should be self explanatory:
>
> package fulltext.common.processing.helpers.poi;
>
> import java.io.FileInputStream;
> import java.io.IOException;
> import java.util.Iterator;
>
> import org.apache.poi.hssf.usermodel.HSSFCell;
> import org.apache.poi.hssf.usermodel.HSSFRow;
> import org.apache.poi.hssf.usermodel.HSSFSheet;
> import org.apache.poi.hssf.usermodel.HSSFWorkbook;
> import org.apache.poi.poifs.filesystem.POIFSFileSystem;
>
> /**
> * Wraps around the POI stuff to read an Excel (XLS) file from disk
> */
> public class ExcelFileWrapper
> {
> private POIFSFileSystem _fileSystem;
> private HSSFWorkbook _workbook;
>
> /**
> * Initialize the object - does not read yet
> * @throws IOException
> */
> public ExcelFileWrapper(FileInputStream stream) throws IOException
> {
> if (stream == null)
> throw new NullPointerException ("in
> ExcelFileWrapper: ctor parameter 'stream' is null.");
> //
> _fileSystem = new POIFSFileSystem(stream);
> _workbook = new HSSFWorkbook (_fileSystem);
> }
>
> /**
> * Return the contents of all sheets as string.
> * Every textual cell's content is added here.
> */
> public String readContents ()
> {
> // return this
> StringBuilder builder = new StringBuilder();
>
> // for each sheet
> for (int numSheets = 0; numSheets <
> _workbook.getNumberOfSheets(); numSheets++)
> {
> HSSFSheet sheet = _workbook.getSheetAt(numSheets);
>
> // Iterate over each row in the sheet
> Iterator rows = sheet.rowIterator();
> while( rows.hasNext() )
> {
> HSSFRow row = (HSSFRow) rows.next();
>
> // Iterate over each cell in the row and add the
> cell's content
> Iterator cells = row.cellIterator();
> while( cells.hasNext() )
> {
> // get cell..
> HSSFCell cell = (HSSFCell) cells.next();
> // .. add to stringbuilder
> processCell (cell, builder);
> }
>
> }
>
> } // for numSheets ..
>
> //
> return builder.toString();
> }
>
> /**
> * Add the cells's content to the stringbuilder (if appropiate
> content, i.e. text - no numbers)
> */
> private void processCell (HSSFCell cell, StringBuilder builder)
> {
> switch ( cell.getCellType() )
> {
> /*
> case HSSFCell.CELL_TYPE_NUMERIC:
> System.out.println( cell.getNumericCellValue() );
> break;
> */
> case HSSFCell.CELL_TYPE_STRING:
> builder.append (cell.getStringCellValue());
> builder.append (" ");
> break;
>
> default:
> break;
> }
> }
>
> }
>
>
> - Johannes
>
>
> -----Ursprüngliche Nachricht-----
> Von: Michael J. Prichard [mailto:[EMAIL PROTECTED]
> Gesendet: Montag, 31. Juli 2006 15:36
> An: POI Users List
> Betreff: Re: Extract Text From Excel
>
> Hey Feris,
>
> That [HSSF] is what I use as well and it works pretty good.
>
> -Michael
>
> Suba Suresh wrote:
>
> > You can use the hssf libraries for excel text extraction. I used it
> > for lucene indexing.
> >
> > suba suresh.
> >
> > Feris Thia wrote:
> >
> >> Hi All,
> >>
> >> I'm new to this user group. Is there any way to extract all the text
> >> from
> >> Excel documents ? Want to perform indexing using POI + Lucene :)
> >>
> >> Thanks,
> >>
> >> Feris
> >>
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > Mailing List: http://jakarta.apache.org/site/mail2.html#poi
> > The Apache Jakarta Poi Project: http://jakarta.apache.org/poi/
> >
>
>
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>
>
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>
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