Re: FW: Problem reading in a file

[Danny Mui]

So I guess we need a better error message for that case.

I'm entering a bugzilla entry as an enhancement, vote for it!  Currently 
tackling some other things but will look at it when time permits.

danny

DRINKARD, JAMES E (SBCSI) wrote:

My code was correct where I was reading in the file. I missed code above
that point where I created a new file with 0 bytes. It didn't have any data
or a header, so I got the error.
-----Original Message-----
From: Danny Mui [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 11, 2003 12:01 PM
To: DRINKARD, JAMES E (SBCSI)
Subject: Re: Problem reading in a file
I got that error once before when the file I was reading was 0 bytes.  
Make sure the file does have something in it.

danny

DRINKARD, JAMES E (SBCSI) wrote:

 

Hello All,
I'm trying to read in an excel file and I keep getting an error due to it
not being able to read the header? I made the file using POI and then
populated it with data. That part works fine. Then I try to read that file
in order to change it using the following code:
try
  {
    POIFSFileSystem fs = new POIFSFileSystem(new
FileInputStream(fileName));  
	  HSSFWorkbook wrkBk = new HSSFWorkbook(fs);

fileName is a string variable with the filename and path: ie
"c:\temp\test.xls".
The error is:
java.io.IOException: Unable to read entire header; -1 bytes read; expected
512 bytes
java.io.IOException: Unable to read entire header; -1 bytes read; expected
512 bytes
	at
org.apache.poi.poifs.storage.HeaderBlockReader.<init>(HeaderBlockReader.jav
   

a
 

:114)
	at
org.apache.poi.poifs.filesystem.POIFSFileSystem.<init>(POIFSFileSystem.java
   

:
 

120)
        at
com.sbc.ecom.iris.batch.reports.totals.Totals.main(Totals.java:303)
I know from other documentation I read that the header gets read first, so
if it can't find it or interpret it, I assume this is the error one would
get.
Any ideas as to what I'm doing wrong?

Thanks,
James
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