Hi Karthik,
I will ask my company to deploy the latest version of POI.
You should use POI 3.6
My concern is ,application is such a big,we are using POI to
generate lot of
reports.
You will need to make sure that they all work correctly. Does your
company have unit tests that make sure each report generates correctly?
You can come back to the user list for help with any reports that fail
to work using POI 3.6. There are likely to be a few small API changes.
Is it possible to deploy more than one POI for an application.
Not in any easy way. You would have to rename everything and that
would be harder than making sure all the old reports still work.
Regards,
Dave
Please suggest me an POI version to deploy.
No issues in opening and resaving the file.
Thanks
Karthik
David Fisher wrote:
I don't know iPlanet, we use Tomcat, but seriously you need to talk
to
your company about using more recent versions of POI. Maybe that is
not as hard as you think. Your company will need to help you. Here
are
some questions.
Does your company deploy POI 1.5 or 2.0 jars for every application on
a server? If the answer is no, then you should be able to deploy your
own version of POI in your application in a WEB-INF/lib directory or
something similar.
Seriously it should not be too hard for your company to upgrade to a
recent version of POI. You will likely need to go to at least version
3.5. I know that there were fixes to block size issues applied after
3.2. I don't know if they are your issues.
It is also possible that this file has been damaged in some way. What
happens when you open it in Excel and re-save it?
Regards,
Dave
On Dec 26, 2009, at 8:06 PM, thikkar wrote:
I cannot update to latest version, since my company is using POI for
various
Applications.
I will try to get the problematic file from my company. In the
meanwhile
,can u think of some other solution? My Application is deployed in
IPlanet
server which is in Solaris OS.
MSB wrote:
If you can, the first thing to do would be to update to the current
version of the API as both of those you are using are quite old
now. It
could very well be that the problem you are experiencing was
reported and
addressed in the time between version 2.0 and 3.6 and if it has,
the
advice can only and will be to upgrade I suspect. However, if you
cannot
do this for some reason - and I would strongly advise that you do -
can
you attach the problematic file please so that the developers can
look
into the issue?
Mark B
thikkar wrote:
I am trying to read an excel file using POI 2.0 (used 1.5 also) ,
but
I get the following
error:
java.lang.Exception: java.io.IOException: Unable to read entire
block;
202 bytes read; expected 512 bytes
at csmip.EvpnExcelParser.displayFromExcel(Unknown Source)
at csmip.EvpnExcelParser.importExcel(Unknown Source)
at
_jsps
._mds
._evpn_excel_import_jsp._jspService(_evpn_excel_import_jsp.java:
130)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:
107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:908)
at
com.iplanet.ias.web.jsp.JspServlet
$JspServletWrapper.service(JspServlet.java:687)
at
com.iplanet.ias.web.jsp.JspServlet.serviceJspFile(JspServlet.java:
459)
at com.iplanet.ias.web.jsp.JspServlet.service(JspServlet.java:375)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:908)
at
org
.apache
.catalina
.core
.StandardWrapperValve
.invokeServletService(StandardWrapperValve.java:771)
at
org.apache.catalina.core.StandardWrapperValve.access
$000(StandardWrapperValve.java:118)
at
org.apache.catalina.core.StandardWrapperValve
$1.run(StandardWrapperValve.java:293)
at java.security.AccessController.doPrivileged(Native Method)
at
org
.apache
.catalina
.core.StandardWrapperValve.invoke(StandardWrapperValve.java:289)
at
org
.apache
.catalina.core.StandardPipeline.invoke(StandardPipeline.java:509)
at
org
.apache
.catalina
.core.StandardContextValve.invoke(StandardContextValve.java:218)
at
org
.apache
.catalina.core.StandardPipeline.invoke(StandardPipeline.java:509)
at
org
.apache
.catalina.core.StandardHostValve.invoke(StandardHostValve.java:
209)
at
org
.apache
.catalina.core.StandardPipeline.invoke(StandardPipeline.java:509)
at
com
.iplanet
.ias
.web.connector.nsapi.NSAPIProcessor.process(NSAPIProcessor.java:
157)
at com.iplanet.ias.web.WebContainer.service(WebContainer.java:579)
It is a web based application where i have to read an excel file.
EvpnExcelParser is my own class which uses displayExcel() method
to read
the xls file.
Excel file version is 2002 /2003
piece of code:
Hint: xlsPath contains path to the excel file
InputStream inputStream = new FileInputStream (xlsPath);
POIFSFileSystem fileSystem = null;
fileSystem = new POIFSFileSystem (inputStream);
HSSFWorkbook workBook = new HSSFWorkbook (fileSystem);
HSSFSheet sheet = workBook.getSheetAt (0);
Please help me as soon as possible.
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