Error in reading from Excel

Hi ,
I am working in 04s and trying to read data from excel. I have used FileUpload UI Element and I am able to upload the excel file succesfully.Using the resource property of the UI Element (bound to resource from context of the type IWDResource) I am trying to read the excel file using POI api's.
My code is as follows:
IWDResource l_resource = null;
l_resource = wdContext.currentContextElement().getResource();
InputStream l_inputStream = l_resource.read(true);
POIFSReader l_poifsReader = new POIFSReader();
l_poifsReader.read(l_inputStream);
HSSFWorkbookl_workbook = new HSSFWorkbook(l_inputStream);
int l_sheetno = l_workbook.getNumberOfSheets();
This code is throwing an exception at HSSFWorkbook declaration line. The exception is '" Unable to read entire header; -1 bytes read; expected 512 bytes ".
I am using POI api's of 04. Are these api's differnt in 04s? I am getting exception
Kindly reply as I am stuck here. or is there any other way through which i can read excel files?
Thanks
Rashmi

Maybe 851.0 is float value, not string.
Try Object columnValue1 =
rs.getObject(i); instead of String
columnValue1 = rs.getString(i);
You are absolutely right i actually change the line
custNo =Integer.parseInt(columnValue1);
into
custNo =Double.parseDouble(columnValue1);
Thanks alot :)

Similar Messages

Error in reading from excel file

hi,
I have written a program which reads from excel file
and based on the value of the column i have to do something.
Everything is fine but when i run it, it produces an error message
Exception: For input string: "851.0"
the value 851.0 is acually the value of the first column.
Here is the code and i hope someone can help me to find the solution
try{
                           Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
                           Connection con = DriverManager.getConnection( "jdbc:odbc:exceltest" );
                           Statement st = con.createStatement();
                           ResultSet rs = st.executeQuery( "Select * from [Sheet1$] " );
                           ResultSetMetaData rsmd = rs.getMetaData();
                           int numberOfColumns = rsmd.getColumnCount();
                           while (rs.next()) {
                                        for (int i = 1; i <= numberOfColumns; i++) {
                                             if(i==1){
                                                        String columnValue1 = rs.getString(i);
                                                        custNo =Integer.parseInt(columnValue1);
                                                       // System.out.println(columnValue1);
                                                        found=search(custNo);
                                                        if (found==false)
                                                             insert(custNo);
                                                        System.out.println(columnValue1);
                                             else if (i == numberOfColumns && found==false)
                                                       String columnValue = rs.getString(i);
                                                       if(columnValue=="a")
                                                            incrementCusta();
                                                       else if (columnValue=="b")
                                                            incrementCustB();
                                                       else if(columnValue=="c")
                                                            incrementCustc();
                                                       else if(columnValue=="d")
                                                            incrementCustId();
                                        System.out.println("");
                                   st.close();
                                   con.close();
                                  } catch(Exception ex) {
                                       System.err.print("Exception: ");
                                       System.err.println(ex.getMessage());
                             }

Maybe 851.0 is float value, not string.
Try Object columnValue1 =
rs.getObject(i); instead of String
columnValue1 = rs.getString(i);
You are absolutely right i actually change the line
custNo =Integer.parseInt(columnValue1);
into
custNo =Double.parseDouble(columnValue1);
Thanks alot :)

Java Heap Space error while reading from Excel

Hello,
I have a data flow which reads from excel and updates records in an oracle table.
When the data flow tries to read the excel I get a java Heap space Error.
Error preparing to read <SUPP_STG3_FILE1>: <Java heap space>.
Data flow <DF_SUPP_STG3_UPD> is terminated due to error <58105>.
I have configured Excel Adapter since the server is on UNIX. BOExcelAdapter shows status as red once the execution fails. Before that BOExcel adapter status is green.
BOExcelAdapter Trace:
1/13/12 10:57:38 PM Thread[Thread-6,5,main]      Received an error message from the message broker. [Communication failure. Read timed out]. Will exit adapter immediately.
1/13/12 10:57:47 PM Thread[main,5,main]      Create broker client for life-cycle management. Host:port = hikalxboes01:4001
1/13/12 10:57:47 PM Thread[main,5,main]      Create broker client for data exchange with ASP. Host:port = hikalxboes01:4001. Client ID = com.acta.adapter.msexceladapter.MSExcelAdapter.data_18
1/13/12 10:57:47 PM Thread[Thread-11,5,main]      Create broker client for real-time services with ASP. Host:port = 'hikalxboes01:4000''.
1/13/12 10:57:47 PM Thread[Thread-11,5,main]      Start instance [BOExcelAdapter] of adapter [com.acta.adapter.msexceladapter.MSExcelAdapter].
1/13/12 10:57:47 PM Thread[Thread-11,5,main]      Register the client ID [com.acta.adapter.msexceladapter.MSExcelAdapter.data_18] and adapter destination [hikalxboes01:4001] with the adapter manager.
1/13/12 10:57:47 PM Thread[Thread-11,5,main]      Registration complete.
1/13/12 10:58:10 PM Thread[Thread-10,5,main]      java.lang.OutOfMemoryError: Java heap space
     at org.apache.poi.hssf.usermodel.HSSFRow.addCell(HSSFRow.java:273)
     at org.apache.poi.hssf.usermodel.HSSFRow.createCellFromRecord(HSSFRow.java:196)
     at org.apache.poi.hssf.usermodel.HSSFSheet.setPropertiesFromSheet(HSSFSheet.java:183)
     at org.apache.poi.hssf.usermodel.HSSFSheet.<init>(HSSFSheet.java:128)
     at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:283)
     at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:196)
     at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:178)
     at com.acta.adapter.msexceladapter.MSExcelAdapterReadTable.begin(MSExcelAdapterReadTable.java:537)
     at com.acta.adapter.sdk.StreamOperationWrapper.beginStream(StreamOperationWrapper.java:88)
     at com.acta.adapter.sdk.AdapterRunnerImpl.processBeginOperation(AdapterRunnerImpl.java:1762)
     at com.acta.adapter.sdk.AdapterServiceDataListener.handleBrokerMessage(AdapterServiceDataListener.java:90)
     at com.acta.brokerclient.BrokerClient.handleMessage(BrokerClient.java:439)
     at com.acta.brokerclient.BrokerClient.access$100(BrokerClient.java:53)
     at com.acta.brokerclient.BrokerClient$MessageHandler.run(BrokerClient.java:1621)
     at com.acta.brokerclient.ThreadPool$PoolThread.run(ThreadPool.java:100)
BOExcelAdapter Error Log:
1/13/12 10:58:10 PM      java.lang.OutOfMemoryError: Java heap space
     at org.apache.poi.hssf.usermodel.HSSFRow.addCell(HSSFRow.java:273)
     at org.apache.poi.hssf.usermodel.HSSFRow.createCellFromRecord(HSSFRow.java:196)
     at org.apache.poi.hssf.usermodel.HSSFSheet.setPropertiesFromSheet(HSSFSheet.java:183)
     at org.apache.poi.hssf.usermodel.HSSFSheet.<init>(HSSFSheet.java:128)
     at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:283)
     at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:196)
     at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:178)
     at com.acta.adapter.msexceladapter.MSExcelAdapterReadTable.begin(MSExcelAdapterReadTable.java:537)
     at com.acta.adapter.sdk.StreamOperationWrapper.beginStream(StreamOperationWrapper.java:88)
     at com.acta.adapter.sdk.AdapterRunnerImpl.processBeginOperation(AdapterRunnerImpl.java:1762)
     at com.acta.adapter.sdk.AdapterServiceDataListener.handleBrokerMessage(AdapterServiceDataListener.java:90)
     at com.acta.brokerclient.BrokerClient.handleMessage(BrokerClient.java:439)
     at com.acta.brokerclient.BrokerClient.access$100(BrokerClient.java:53)
     at com.acta.brokerclient.BrokerClient$MessageHandler.run(BrokerClient.java:1621)
     at com.acta.brokerclient.ThreadPool$PoolThread.run(ThreadPool.java:100)

As Jay mentioned above it might be due to the size of the Excel spreadsheet as you might be hitting the limitation in Apache POI library used for adapter.
What is the size of the Excel file?
What is the value of -Xmx parameter - see DS Management Console > Adapter configuration page.
Thank you,
Viacheslav.

"Lightroom encountered and error when reading from its preview cache and needs to quit"

I keep receiving this error every time I open LR, "Lightroom encountered and error when reading from its preview cache and needs to quit" and the app won't open. It said LR would try and fix this error next time I opened it but the error remains. I tried uninstalled and installing the app and the error remains.
Any Ideas here? Is there another app that may be telling it where to look for the cache and it no longer there? I was using a ramdisk for a bit but ditched it. Not sure if that has something to do with it but it seems suspect.
Your thoughts?
--Kenny Brandon Wilson

Talked to Adobe support this morning, this is their response in case anyone else is looking for help. I'm running a Windows 7 box, LR 5.6.
Gokul: Click on start and type %appdata%, then open roaming folder.
Edward: ok
Gokul: Open Adobe folder.
Gokul: Open Lightroom folder.
Gokul: Open Lightroom folder> Preferences.
Edward: ok
Gokul: Rename Lightroom 5 Preferences.agprefs file as Lightroom 5 Preferences.agprefsOLD.
Edward: OK
Gokul: Please check if you can launch Lightroom without any error.
Edward: it shows me a welcome screen and is asking me to select my country
Edward: aka, register the software
Gokul: You can skip and launch it.
Edward: LR catalog not found
Gokul: Please select the catalog.
Edward: my original catalog?
Gokul: Yes.
Edward: testing integrity of catalog
Edward: loaded just fine
Gokul: Okay.
Gokul: Please check if you can re-launch it again.
Edward: yes, it worked!
Gokul: Excellent!
Gokul: Since your preferences were corrupted you were facing issue so we renamed the preferences file to reset it.
Edward: aha....ok
All of my import/export presets were intact along with develop user presets. I'm happy as a clam for my $10/month!

.exe reading from Excel files

Hi everybody,
I know similar questions have been asked lots of times but while searching the forum didn't find an anwer to my problem.
I created an exe file (using exe4j) of a java application which reads form Excel files. Although it works when I run it from my editor, when running the exe file it cant find the Excel file. More specifically I have this error:
"java.sql.SQLException: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified"
In order to read from excel files I use POI. I used it so as not to use ODBC driver and make it possible to run in every computer. When adding the driver, the exe works.Do you know a way to make it work without having to install the Driver?
Thanks in Advance

You need database drivers to read excel spread sheets?
Also, why did you make it an exe? just jar it and be done with it.

Lightroom encountered and error when reading from it preview cache and needs to quit

A power outage caused my Lightroom 5.2 to shut down without closing. When I powered back up and opened lightroom it gives me an error "Lightroom encountered and error when reading from it preview cache and needs to quit" and then it says it will try to fix it the next time it opens. I have opened it 20 times and it is not fixing it. I removed the program completely and upgraded to 5.5 AND it is still giving me the same error. Is my catalog corrupt or something? I had it set to automatically load the most currently used catalog, so it is not allowing me to open or start a new catalog either. HELP!!!

Search the forum, this has been answered many times.

I'm unable to open up Lightroom 5, I get this message in a pop up box: "Lightroom encountered an error when reading from it's preview cache and needs to quit" Underneath that is "Lightroom will attempt to fix this problem the next time when it launches."

I'm unable to open up Lightroom 5, I get this message in a pop up box: "Lightroom encountered an error when reading from it's preview cache and needs to quit" Underneath that is "Lightroom will attempt to fix this problem the next time when it launches." It hasn't, what should I do? Thanks Shawn (Irish Se7en) .

Can you try to rename (not delete!) the folder named "YOUR_CATALOG_NAME Previews.lrdata" and restart Lightroom?

LR encountered an error when reading from its preview cache and needs to quit.

I have the 30 day trial version of Lightroom. I was able to use it for one week, but the past 1.5-2 weeks, it has been locked up and giving this error message. How do I resolve the problem? And how do I reset the 30 day free trial? I would like to have time using the product, before deciding on the annual contract.
"LR encountered an error when reading from its preview cache and needs to quit. Lightroom will attempt to fix this problem the next time it launches."
Thank you.

Delete the preview cache from the Lightroom folder in your Pictures folder if you used the default placement. It has the extension .lrdata.
You cannot reset the trial period.

I keep receiving this error every time I open LR, "Lightroom encountered and error when reading from its preview cache and needs to quit" and the app won't open. It said LR would try and fix this error next time I opened it but the error remains. I tried

I keep receiving this error every time I open LR, "Lightroom encountered and error when reading from its preview cache and needs to quit" and the app won't open. It said LR would try and fix this error next time I opened it but the error remains. I tried uninstalled and installing the app and the error remains. I have windows 8. Can anyone please help???

Use Windows Explorer to open the folder containing your catalog. The normal location is Pictures\Lightroom. Locate a folder with the extension .lrdata and delete that folder. Then you should be able to start Lightroom again, and Lightroom will begin building and new previews folder. Do not delete anything else.

It says Lightroom encountered an error when reading from a previous cache and needs to quit. Light room will attempt to to fix the problem the next time it launches.

how do i fix this. It says Lightroom encountered an error when reading from a previous cache and needs to quit. Light room will attempt to to fix the problem the next time it launches.

Have a look at this thread.
Lightroom encountered an error when reading from its preview cache and needs to quit. Lightroom will attempt to fix this problem the next time it launches"."

Error Launching LR 5: "Lightroom encountered an error when reading from its preview cache and..."

Error Launching LR 5: "Lightroom encountered an error when reading from its preview cache and needs to quit. Lightroom will attempt to fix this problem the next time it launches."
I've tried renaming my catalog.lrcat file. I've copied over my most recent backup of the catalog.lrcat and that didn't work either.

On Mac:
PS - to open the previews "folder" (a "package" is just a "special" folder) on Mac, ctrl-click and choose "Show package contents.." - same way you open any other special folder, like .app or .lrplugin..
Rob

Upgraded to 5.4 when opening lightroom get a message "encountered an error when reading from its preview cache and need to quite" tried this several time but get the same eror message

Upgraded to 5.4 when opening lightroom get a message "encountered an error when reading from its preview cache and need to quite" tried this several time but get the same error message. Says Lightroom will attempt to fix the problem the next time it launches but that is not happening. How do it fix this?

Delete the preview cache using your operating system. It is a folder whose name ends with Previews.LRDATA. Do not delete the Lightroom catalog, which ends with .LRCAT

When my lightroom opens up I keep getting an error message that states, "Lightroom encountered an error whne reading from its preview cache and needs to quit" I have relaunched it a number of times and keep getting the same message.

when my lightroom opens up I keep getting an error message that states, "Lightroom encountered an error whne reading from its preview cache and needs to quit" I have relaunched it a number of times and keep getting the same message. Any thoughts on how to fix this?

You need to delete your preview cache and have Lightroom rebuild it. Cache location can be found here.
https://helpx.adobe.com/lightroom/kb/preference-file-locations-lightroom-41.html
Why And How To Clear Your Lightroom Cache - Lightroom Fanatic

Lightroom 5 is not opening it gives me an error message there is an error when reading from its preview cache and needs to quite

lightroom 5 is not opening it gives me an error message there is an error when reading from its preview cache and needs to quite
it also says it will attempt to to fix the next time it opens it doesn't do anything

Check this thread. Your Previews Cache files are corrupted.
Re: preview cache?

Lightroom encountered an error when reading from its preview cache and needs to quit. Says Lightromm will attempt to fix the problem the next time it launches, but on every re-launch I get the same message. Any clue as to how to fix this problem?

I recently updated my HP laptop's OS from WIndows8 to WIndows8.1. When I went attempted to open Lightroom5 I got the following message:
"Lightroom encountered an error when reading from its preview cache and needs to quit. "
"Lightroom will attempt to fix the problem the next time it launches"
Every time I relaunch I get the same message. I'd like to understand what might be causing the problem so I can remedy and get back to my photo editing. Any clue as to how to fix this problem would be greatly appreciated.
JPM

reset your preferences, Resetting (or 'Trashing') the Lightroom Preferences file - Lightroom Forums

Error in reading from Excel

Similar Messages

Maybe you are looking for