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	 <27269628.post@talk.nabble.com>
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Date: Tue, 26 Jan 2010 18:15:07 +0530
Message-ID: <42184d2d1001260445q69adc5c4oc2e0add43d4dd961@mail.gmail.com>
Subject: Re: Problem reading XLS files
From: Aju Mathai <mathaiaju@gmail.com>
To: POI Users List <user@poi.apache.org>
Content-Type: text/plain; charset=ISO-8859-1
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Hi Mark,

What i am trying to accomplish is read a row of data from the excel
file and delimit the columns with a pipe "|" character. This row of
data is passed on for processing . My problem is i need to find the
last column , if say i have 2 columns in my excel file my output will
be

ColumnHeader1|ColumnHeader2|
TextColumn1|TextColumn2|

But suppose for the 3rd column in my excel sheet also returns me true
(output of the celliterator.hasNext()) .My code below will give me a
output

ColumnHeader1|ColumnHeader2|
TextColumn1|TextColumn2||

An extra pipe character at the end. How should i handle this scenario
, i am interested in all cell types string,numeric,boolean etc


Thanks & Regards,
mathaj
On Mon, Jan 25, 2010 at 10:21 PM, MSB <markbrdsly@tiscali.co.uk> wrote:
>
> You would need to use an additional tool - BiffViewer - to accomplish tha=
is
> and it may well not be wirth while in this case.
>
> Can I ask, do the extra columns matter to you? Cannot you simply ignore t=
he
> additional blank cells that appear? It looks from the loop that you have
> posted that the only cell tyep you are interested in are the String(s).
>
> Yours
>
> Mark B
>
>
> Aju Mathai wrote:
>>
>> =A0Hi Mark,
>>>
>>> The file is generated automatically without any user intervention. How
>>> do i find out whether the excel file has been modified in the ways you
>>> talk about ? . The POI version that i am using is 3.5_beta3.
>>>
>>> Thanks & Regards,
>>> mathaj
>>
>> On Fri, Jan 22, 2010 at 1:12 PM, MSB <markbrdsly@tiscali.co.uk> wrote:
>>>
>>> Excel can behave quite oddly at times and it will create a record for a
>>> cell
>>> if it has been 'touched' in any way by the user during creation of the
>>> file.
>>> By this, I mean that if the user entered a value into a cell and then
>>> cleared that out or if they set a format and then removied it, Excel wi=
ll
>>> recognise that something was done to the cell and will create a record
>>> for
>>> it in the file. Without seeing the actual file/files you are working wi=
th
>>> I
>>> cannot comment much further but do suspect that this may have been the
>>> case;
>>> either the user or the application that created the file left a few of
>>> these
>>> artifacts around. I do not expect that this is a problem with POI but t=
o
>>> be
>>> certain, can you post one of the files that is exhibiting this sort of
>>> behaviour so that we could take a closer look at it please? Further, ca=
n
>>> you
>>> say which version of the API you are using and how the Excel file is
>>> generated - by someone using Excel or by another application - please?
>>>
>>> Yours
>>>
>>> Mark B
>>>
>>>
>>>
>>> Aju Mathai wrote:
>>>>
>>>> Hi,
>>>>
>>>> I am using the following POI libraries to read in the files with .xls
>>>> and .xlsx files. I found a strange problem ,the celliterator.hasNext()
>>>> sometimes gives true even if the next column in my xls file seems to
>>>> be blank, i have no additional columns. How do i take care of such
>>>> blank cells ?
>>>>
>>>> Here is my code snippet
>>>>
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 for(Iterator<Cell> ri =3D row.=
cellIterator();
>>>> ri.hasNext();) =A0{
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 Cell cell =3D ri.next(=
);
>>>>
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 switch(cel=
l.getCellType()){
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 case Cell.=
CELL_TYPE_STRING:
>>>>
>>>> text.append(cell.getRichStringCellValue().getString().trim());
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 break;
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 case Cell.=
CELL_TYPE_NUMERIC:
>>>>
>>>> text.append(cell.getNumericCellValue());
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 break;
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 case Cell.=
CELL_TYPE_BOOLEAN:
>>>>
>>>> text.append(cell.getBooleanCellValue());
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 break;
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 case Cell.=
CELL_TYPE_FORMULA:
>>>>
>>>> text.append(cell.getCellFormula());
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 break;
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 case Cell.=
CELL_TYPE_BLANK:
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 break;
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 default:
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 text.append("");
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 }
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 // Column =
Delimiter
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 if(ri.hasN=
ext() && =A0!(cell.getCellType()
>>>> =3D=3D Cell.CELL_TYPE_BLANK))
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 text.append(COLUMN_DELIMITER);
>>>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 }
>>>>
>>>>
>>>> Thanks
>>>> mathaj
>>>>
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>>>>
>>>>
>>>>
>>>
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