Writing files using FileWriter in webshpere

I am using FileWriter to write and save a file. I am using Webshpere for the server. The problem I am running into is writing the file with out hard coding the directory so the user can view thie file.
example:
User submits html form -> file is created -> html submition added to file -> file saved -> file viewable to user.
Everything works fine up to the file viewable to user. I'd like to be able to create a link to the file that the user can see without hard coding a url.
any suggestion?

Hey hawleyjr, I am also using WebSphere and need to do just about the same thing you are doing. This is my first java application. Any chance you would send me some code snipets so I can figure this thing out? If you don't mind doing this, send them to [email protected] If I can ever reciprocate, will be glad to.

Similar Messages

Writing files using UTL_FILE package

Greetings:
I'm attempting to write simple text files on the server side using the UTL_FILE package.I can get it to write the file to a local drive on the Oracle server with no problems, but not a network drive. When trying to write to a network drive, the FOPEN function raises the UTL_FILE.INVALID_OPERATION exception. This is even with my UTL_FILE_DIR parameter set the * for all directories and I have "Full Control" permission on the directory. I am running in a NT Server/Wkstn environment. Anyone have any ideas why I can't write a file to a network drive?
Thanks a lot,
Chris Scopp

Thanks for your response...
I have set the UTL_FILE_DIR parameter... I've tried setting it to the * for all directories and also mapping a drive letter from the server to where I want to write the file and then explicitly naming this path in the UTL_FILE_DIR parameter. Neither works, I still get the INVALID_OPERATION exception raised on the FOPEN function. I'm convinced now that it does have something to do with NT because I have been able to do the same operation writing to a Win95/98 box and it works fine. I have "Full Control" to all places I'm trying to write to, any other ideas?
Thanks a lot,
Chris Scopp

Formatting output to a text file (using FileWriter and PrintWriter)

Hi Folks
I am using the bit of code below to save output from a gui to a text file. The data is entered line by line in the form eg,
"one two three four"
"five six seven eight"
I am also reloading this data back in to a TextArea in the GUI for viewing if required. The annoying thing that upon reloading, the data appears in one long line. The TextArea does not offer a line wrapping facilty (well I don't know how to impement it, it exist). Consequently, I would be quite grateful if somone could come come to my assistance. Any of these would graciously appreciated:
1. Forcing the TextArea to word wrap
2. Manually inserting some type of newline character at the end of the outbound
text
3. Or any other procedure you experts can dream up :-)
Cheers
public void actionPerformed(ActionEvent e) {
if (e.getSource() == loadButton) {
getFileDialog = new FileDialog(this,
"Select or enter the name of the file you wish to write to.",
FileDialog.LOAD);
getFileDialog.setDirectory("C:\\Work\\java_tutorials");
getFileDialog.show();
fileName = getFileDialog.getFile();
if(fileName == null) {
return;
directory = getNameBox.getDirectory();
path = directory + fileName;
fileConfirmation.setText(path);
if (e.getSource() == saveButton ) {
try{
outputFile = new PrintWriter( new FileWriter(fileName, true), true);
outputFile.print(inputTextArea.getText() );
outputFile.close();
catch (FileNotFoundException e1) {
return;
catch (NullPointerException e2) {
return;
catch (IOException e3) {
JOptionPane.showMessageDialog(null,
"There was an error in opening this file!");
System.exit(0);
}

'you can use "append()" method...
ex.
// some code here...
inputTxtArea.append(data+"\n"); //<<-- you need to put '\n'
// some code here...

Reading / Writing files using Sockets

Hi there guys,
I am fairly new to this forum. I have been having a problem for the past three days. I am implementing a client/server implementation using Sockets which is a submodule of a project I am working on. What I want is that a files content are read and transferred over the network to the server that writes it down to a different file .
What the code presently does is :
<<<<Client Code >>>>
It reads a file input.txt and sends the content over the network to the server.
<<<< Server Code >>>
It reads the incoming data from the client and writes the data out to a file called output.txt
What I want now is that the server should read the file output.txt and send the contents to the client which reads it and then writes it down as a new file called serverouput.txt . After that I want to compare and see of the size of input.txt and serveroutput.txt . If both are same that means that data has been written reliably to the server.
I have been trying to implement it for a long time and nothing seems to work out. I am posting the code for both client and server below. Any help in finalising things would be really appreciated.
CLIENT CODE
import java.awt.Color;
import java.awt.BorderLayout;
import java.awt.event.*;
import javax.swing.*;
import java.util.Date;
import java.io.*;
import java.net.*;
class sc {
static final int PORT = 4444;          //Change this to the relevant port
static final String HOST = "127.0.0.1";
     //Change this to the relevant HOST,
//(where Server.java is running)
public static void main(String args[]) {
try {
System.out.print("Sending data...\n");
Socket skt = new Socket(HOST, PORT);
               // Set the socket option just in case server stalls
skt.setSoTimeout ( 2000 );
               skt.setSoKeepAlive(true);
//Create a file input stream and a buffered input stream.
FileInputStream fis = new FileInputStream("input.txt");
BufferedInputStream in = new BufferedInputStream(fis);
BufferedOutputStream out = new BufferedOutputStream( skt.getOutputStream() );
//Read, and write the file to the socket
int i;
while ((i = in.read()) != -1) {
out.write(i);
//System.out.println(i);
               // Enable SO_KEEPALIVE
out.flush();
out.close();
in.close();
skt.close();
catch( Exception e ) {
System.out.print("Error! It didn't work! " + e + "\n");
          catch( IOException e ) {
System.out.print("Error! It didn't work! " + e + "\n");
SERVER CODE
import java.awt.Color;
import java.awt.BorderLayout;
import java.awt.event.*;
import javax.swing.*;
import java.util.Date;
import java.io.*;
import java.net.*;
class ClientWorker implements Runnable {
private Socket client;
ClientWorker(Socket client) {
this.client = client;
public void run(){
try      {
FileOutputStream fos = new FileOutputStream("output.txt");
BufferedOutputStream out = new BufferedOutputStream(fos);
BufferedInputStream in = new BufferedInputStream( client.getInputStream() );
//Read, and write the file to the socket
int i;
while ((i = in.read()) != -1) {
out.write(i);
//System.out.println(i);
System.out.println("Receiving data...");
out.flush();
in.close();
out.close();
client.close();
// srvr.close();
System.out.println("Transfer complete.");
catch(Exception e) {
System.out.print("Error! It didn't work! " + e + "\n");
class ss1 {
ServerSocket server = null;
ss1(){ //Begin Constructor
} //End Constructor
public void listenSocket(){
try{
server = new ServerSocket(4444);
} catch (IOException e) {
System.out.println("Could not listen on port 4444");
System.exit(-1);
while(true){
ClientWorker w;
try{
w = new ClientWorker(server.accept());
Thread t = new Thread(w);
t.start();
} catch (IOException e) {
System.out.println("Accept failed: 4444");
System.exit(-1);
protected void finalize(){
//Objects created in run method are finalized when
//program terminates and thread exits
try{
server.close();
} catch (IOException e) {
System.out.println("Could not close socket");
System.exit(-1);
public static void main(String[] args){
ss1 frame = new ss1();
     frame.listenSocket();
}

............................................. After that I want to
compare and see of the size of input.txt and
serveroutput.txt . If both are same that means that
data has been written reliably to the server.You don't need to do this. TCP/IP ensures the reliable transmition of data. By using a socket you are automaticaly sure that the data is reliably transmitted (Unless there is some sort of exception).
To get the size of the files you can use a File object. Look it up in java.io package in API documentation.
java-code-snippet (without error checking)
File clientFile = new File("input.txt");
clientFile.length();

Writing to a flat file using UTL in a procedure

Hello All,
I am creating a procedure in which I am trying to write data to a flat file using UTL. Code is shown below:
CREATE OR REPLACE PROCEDURE wrt_lifungduty IS
   sql_stmt             varchar2(200);
   sql_stmt1            varchar2(200);
   sql_stmt2            varchar2(200);
   v_cur_hdl            integer;
   v_rows_processed     BINARY_INTEGER;
   V_file           UTL_FILE.FILE_TYPE;
   V_flatfile_line      VARCHAR2(98) := NULL;
V_OBLIGATION_KEY    NUMBER(10);
V_OBLIGATION_LEVEL VARCHAR2(6);
V_KEY_VALUE_1       VARCHAR2(20);
V_KEY_VALUE_2       VARCHAR2(20);
V_PARTNER_TYPE      VARCHAR2(6);
V_PARTNER_ID        VARCHAR2(10);
V_EXT_INVC_NO       VARCHAR2(30);
V_EXT_INVC_DATE     DATE;
V_PAID_DATE         DATE;
V_PAID_AMT          NUMBER(20,4);
V_COMP_ID           VARCHAR2(10);
V_RECEIPT_DATE      DATE;
V_ORDER_QTY         NUMBER(12,4);
V_RECEIPT_QTY       NUMBER(12,4);
V_FRT               NUMBER;
V_DUTY              NUMBER;
V_SUPPLIER          NUMBER;
V_FLAG              VARCHAR2(1);
V_ELC_COST          NUMBER;
V_ADJ_ELC           NUMBER;
Cursor x is
      select OBLIGATION_KEY,OBLIGATION_LEVEL,KEY_VALUE_1,KEY_VALUE_2,PARTNER_TYPE,PARTNER_ID,EXT_INVC_NO,EXT_INVC_DATE
             ,PAID_DATE,PAID_AMT,COMP_ID,RECEIPT_DATE,ORDER_QTY,RECEIPT_QTY,FRT,DUTY,SUPPLIER,FLAG,ELC_COST,ADJ_ELC
      from RMSBIZ.CT_ANALYZE_LIFUNG_DUTY;
BEGIN
if not UTL_FILE.IS_OPEN(V_file) then
      V_file := UTL_FILE.FOPEN('/exchange/biz/rms2lan','sb_duty.dat','w'); --need to give the location for testing
   end if;
for x1 in x loop
V_OBLIGATION_KEY    :=1;
V_OBLIGATION_LEVEL :='test';
V_OBLIGATION_KEY    :=x1.OBLIGATION_KEY;
V_OBLIGATION_LEVEL :=x1.OBLIGATION_LEVEL;
V_KEY_VALUE_1       :=x1.KEY_VALUE_1;
V_KEY_VALUE_2       :=x1.KEY_VALUE_2;
V_PARTNER_TYPE      :=x1.PARTNER_TYPE;
V_PARTNER_ID        :=x1.PARTNER_ID;
V_EXT_INVC_NO       :=x1.EXT_INVC_NO;
V_EXT_INVC_DATE     :=x1.EXT_INVC_DATE;
V_PAID_DATE         :=x1.PAID_DATE;
V_PAID_AMT          :=x1.PAID_AMT;
V_COMP_ID           :=x1.COMP_ID;
V_RECEIPT_DATE      :=x1.RECEIPT_DATE;
V_ORDER_QTY         :=x1.ORDER_QTY;
V_RECEIPT_QTY       :=x1.RECEIPT_QTY;
V_FRT               :=x1.FRT;
V_DUTY              :=x1.DUTY;
V_SUPPLIER          :=x1.SUPPLIER;
V_FLAG              :=x1.FLAG;
V_ELC_COST          :=x1.ELC_COST;
V_ADJ_ELC           :=x1.ADJ_ELC;
V_flatfile_line:= V_OBLIGATION_KEY||','||
V_OBLIGATION_LEVEL ||','||
V_KEY_VALUE_1       ||','||
V_KEY_VALUE_2       ||','||
V_PARTNER_TYPE      ||','||
V_PARTNER_ID        ||','||
V_EXT_INVC_NO       ||','||
V_EXT_INVC_DATE     ||','||
V_PAID_DATE         ||','||
V_PAID_AMT          ||','||
V_COMP_ID           ||','||
V_RECEIPT_DATE      ||','||
V_ORDER_QTY         ||','||
V_RECEIPT_QTY       ||','||
V_FRT               ||','||
V_DUTY              ||','||
V_SUPPLIER          ||','||
V_FLAG              ||','||
V_ELC_COST          ||','||
V_ADJ_ELC;
V_flatfile_line:= V_OBLIGATION_KEY||','|| V_OBLIGATION_LEVEL;
    UTL_FILE.PUT_LINE(V_file, V_flatfile_line);
end loop
commit;
   UTL_FILE.fclose(V_file);
END;
            Getting the following errors:
SQL>Welcome-->
ERROR at line 1:
ORA-06510: PL/SQL: unhandled user-defined exception
ORA-06512: at "SYS.UTL_FILE", line 98
ORA-06512: at "SYS.UTL_FILE", line 157
ORA-06512: at "RMSBIZ.WRT_LIFUNGDUTY", line 39
ORA-06512: at line 1
SQL>Welcome-->39
39* V_file := UTL_FILE.FOPEN('/exchange/biz/rms2lan','sb_duty.dat','w');
SQL>Welcome-->
Does any one know why it is erroring out?
Thanks,
Chiru

the code below works if i take out the last 3 columns while writing to the flat file line.
CREATE OR REPLACE PROCEDURE wrt_lifungduty IS
   sql_stmt             varchar2(200);
   sql_stmt1            varchar2(200);
   sql_stmt2            varchar2(200);
   v_cur_hdl            integer;
   v_rows_processed     BINARY_INTEGER;
   V_file           UTL_FILE.FILE_TYPE;
   V_flatfile_line      VARCHAR2(98) := NULL;
V_OBLIGATION_KEY    NUMBER(10);
V_OBLIGATION_LEVEL VARCHAR2(6);
V_KEY_VALUE_1       VARCHAR2(20);
V_KEY_VALUE_2       VARCHAR2(20);
V_PARTNER_TYPE      VARCHAR2(6);
V_PARTNER_ID        VARCHAR2(10);
V_EXT_INVC_NO       VARCHAR2(30);
V_EXT_INVC_DATE     DATE;
V_PAID_DATE         DATE;
V_PAID_AMT          NUMBER(20,4);
V_COMP_ID           VARCHAR2(10);
V_RECEIPT_DATE      DATE;
V_ORDER_QTY         NUMBER(12,4);
V_RECEIPT_QTY       NUMBER(12,4);
V_FRT               NUMBER;
V_DUTY              NUMBER;
V_SUPPLIER          NUMBER;
V_FLAG              VARCHAR2(1);
V_ELC_COST          VARCHAR2(20);
V_ADJ_ELC           VARCHAR2(20);
Cursor x is
      select OBLIGATION_KEY,OBLIGATION_LEVEL,KEY_VALUE_1,KEY_VALUE_2,PARTNER_TYPE,PARTNER_ID,EXT_INVC_NO,EXT_INVC_DATE
             ,PAID_DATE,PAID_AMT,COMP_ID,RECEIPT_DATE,ORDER_QTY,RECEIPT_QTY,FRT,DUTY,SUPPLIER,FLAG,ELC_COST,ADJ_ELC
      from RMSBIZ.CT_ANALYZE_LIFUNG_DUTY;
BEGIN
if not UTL_FILE.IS_OPEN(V_file) then
      V_file := UTL_FILE.FOPEN('/rmsapps/rms803/biz/data/utl_files','sb_duty.csv','w'); --need to give the location for testing
   end if;
for x1 in x loop
V_OBLIGATION_KEY    :=nvl(x1.OBLIGATION_KEY,null);
V_OBLIGATION_LEVEL :=nvl(x1.OBLIGATION_LEVEL,null);
V_KEY_VALUE_1       :=x1.KEY_VALUE_1;
V_KEY_VALUE_2       :=x1.KEY_VALUE_2;
V_PARTNER_TYPE      :=x1.PARTNER_TYPE;
V_PARTNER_ID        :=x1.PARTNER_ID;
V_EXT_INVC_NO       :=x1.EXT_INVC_NO;
V_EXT_INVC_DATE     :=x1.EXT_INVC_DATE;
V_PAID_DATE         :=x1.PAID_DATE;
V_PAID_AMT          :=x1.PAID_AMT;
V_COMP_ID           :=x1.COMP_ID;
V_RECEIPT_DATE      :=x1.RECEIPT_DATE;
V_ORDER_QTY         :=x1.ORDER_QTY;
V_RECEIPT_QTY       :=x1.RECEIPT_QTY;
V_FRT               :=x1.FRT;
V_DUTY              :=x1.DUTY;
V_SUPPLIER          :=x1.SUPPLIER;
V_FLAG              :=nvl(x1.FLAG,'0');
V_ELC_COST          :=to_char(nvl(x1.ELC_COST,0));
V_ADJ_ELC           :=to_char(nvl(x1.ADJ_ELC,0));
V_flatfile_line:= V_OBLIGATION_KEY||','||
V_OBLIGATION_LEVEL ||','||
V_KEY_VALUE_1       ||','||
V_KEY_VALUE_2       ||','||
V_PARTNER_TYPE      ||','||
V_PARTNER_ID        ||','||
V_EXT_INVC_NO       ||','||
V_EXT_INVC_DATE     ||','||
V_PAID_DATE         ||','||
V_PAID_AMT          ||','||
V_COMP_ID           ||','||
V_RECEIPT_DATE      ||','||
V_ORDER_QTY         ||','||
V_RECEIPT_QTY       ||','||
V_FRT               ||','||
V_DUTY              ||','||
V_SUPPLIER          ||','||
-- V_FLAG            ||','||
V_ELC_COST          ||','||
V_ADJ_ELC;
    UTL_FILE.PUT_LINE(V_file, V_flatfile_line);
end loop
commit;
   UTL_FILE.fclose(V_file);
EXCEPTION
WHEN UTL_FILE.INVALID_PATH
THEN
      DBMS_OUTPUT.PUT_LINE ('error: INVALID_PATH');
WHEN UTL_FILE.INVALID_MODE
THEN
      DBMS_OUTPUT.PUT_LINE ('error: INVALID_MODE');
WHEN UTL_FILE.INVALID_FILEHANDLE
THEN
      DBMS_OUTPUT.PUT_LINE ('error: INVALID_FILEHANDLE');
WHEN UTL_FILE.INVALID_OPERATION
THEN
      DBMS_OUTPUT.PUT_LINE ('error: INVALID_OPERATION');
WHEN UTL_FILE.READ_ERROR
THEN
      DBMS_OUTPUT.PUT_LINE ('error: READ_ERROR');
WHEN UTL_FILE.WRITE_ERROR
THEN
      DBMS_OUTPUT.PUT_LINE ('error: WRITE_ERROR');
WHEN UTL_FILE.INTERNAL_ERROR
THEN
      DBMS_OUTPUT.PUT_LINE ('error: INTERNAL_ERROR');
WHEN OTHERS THEN
     --     v_error_code := SQLCODE;
--          v_error_message := SQLERRM;
--         dbms_output.put_line('ERROR: '||v_error_code);
   --       dbms_output.put_line('ERROR: '||v_error_message);
          RAISE_APPLICATION_ERROR(-20003,'sbduty - aborted');
END;
/It fails as soon as it encounters the V_FLAG in the V_flat_file_line. The data in the table has nulls for the FLAG, and some -ve numbers for the ELC_COST,ADJ_ELC..but that should'nt cause any problems does it?
Whats wrong with those 3 columns?
Errors that i get are:
SQL>Welcome-->BEGIN wrt_lifungduty; END;
ERROR at line 1:
ORA-20003: sbduty - aborted
ORA-06512: at "RMSBIZ.WRT_LIFUNGDUTY", line 117
ORA-06512: at line 1
SQL>Welcome-->117
117* RAISE_APPLICATION_ERROR(-20003,'sbduty - aborted');
SQL>Welcome-->
Thanks,
Chiru

Error writing data in a flat file using UTL_FILE feature

Hi All,
I have written a package which fetches data from four different cursors and inserts into a temporary table.
Now this temporary table is used to write data in a file using the UTL_FILE feature.
fhandler :=
UTL_FILE.fopen (l_path,'Demand_Transactions_'
|| TO_CHAR (SYSDATE, 'YYYYMMDDHH24MI')
|| '.txt',
'w',
max_linesize => 32767
This table has 62593 records and when it starts writing data into the file from the table it errors out after writing 30045 records with the error - ORA-01722: invalid number.
Can anyome please advise me is it because of the max_linesize => 32767. If not then what can be the possible reason.
Any help in this would be highly appreciated.
Regards,
Shruti

891330 wrote:
Hi All,
I have written a package which fetches data from four different cursors and inserts into a temporary table.
Now this temporary table is used to write data in a file using the UTL_FILE feature.
fhandler :=
UTL_FILE.fopen (l_path,'Demand_Transactions_'
|| TO_CHAR (SYSDATE, 'YYYYMMDDHH24MI')
|| '.txt',
'w',
max_linesize => 32767
This table has 62593 records and when it starts writing data into the file from the table it errors out after writing 30045 records with the error - ORA-01722: invalid number.
Can anyome please advise me is it because of the max_linesize => 32767. If not then what can be the possible reason.Max linesize is the number of characters in a line before a newline has to be issued, not the number of rows written.
The error would indicate that you have a character to number conversion going on somewhere but the characters are not numeric so it's failing that conversion.
This doesn't sound like a UTL_FILE issue, but more to do with how you are building up your strings to output to the file.
You would need to show us your code that builds up the lines you are writing out, with details of the datatypes of any of the columns/variables included in that.

Writing into Excel file using PL/SQL and formatting the excel file

Hi,
I am writing into a excel file using PL/SQL and I want to make the first line bold on the excel. Also let me know if there are any other formatting options when writing into excel.
Regards,
-Anand

I am writing into a excel file using PL/SQL
Re: CSV into Oracle and Oracle into CSV
check that thread or search in this forum...

Keep getting message pop up "Error reading/writing file "com.apple.logic.pro.cs": Logical end-of-file reached during read operation," and "The Preferences are not loaded completely. Save them to "com.apple.logic.pro.cs" anyway?" Using Logic pro 8. ???

Logic froze while I was working on something so I forced quit. Now every time I open LOGIC a message pops up that says:
"Error reading/writing file
“com.apple.logic.pro.cs”:
Logical end-of-file reached during read operation."
The only button option is cancel so I press it and another message appears that says:
"The Preferences are not loaded completely.
Do not save them, as you would overwrite the Preferences file with incomplete data."
Then when i close logic a box appears saying:
"The Preferences are not loaded completely.
Save them to "com.apple.logic.pro.cs" anyway?"
There are 3 button options to press; ok, cancel or dont save.
I press "don’t save" cuz I don't want to ruin anything.
I found a discussion located here: https://discussions.apple.com/message/9564253#9564253 that says if I delete the file "com.apple.logic.pro.cs" it will resolve the problem. If I do this will I loose or mess anything up at all, automation, saved channel strips customizations, saved effects, synth, or ultrabeat customizations etc? Or especially will I loose any work I've done? I have hundreds pieces of music files I've created. I'm scared to mess anything up with all the hours and months of work I've done. Is there anyway to fix this without loosing anything? I'm using Logic Pro 8.
Thank you

You can safely delete this file - its the preference file for control surface settings - you haven't said whether you're actually using a control surface or not, if so, you will have to set it up again. A new file will be created when you fire Logic up again, but of course it will contain default settings. If you have a complicated control surface setup, remember to keep a backup copy somewhere in case any future problems arise.
Other than that, you really have nothing to be scared about - hopefully your problem is as simple as that and there isn't an underlying problem (a corrupt hard drive, for example). You seem concerned about losing work, so I guess you want to think about backing that up on a regular basis too. If you're saving your projects to your system drive, do get an external one for this. And also check that you have plent of free space on your system drive - you need to keep about a quarter or third of it free for your OS and programs to run properly (some temporarily stored files can be quite large).

"encoding = UTF-8" missing while writing XML file using file Adapter

Hi,
We are facing an unique problem writing xml file using file adapter. The file is coming without the encoding part in the header of xml. An excerpt of the file that is getting generated:
<?xml version="1.0" ?>
<customerSet>
<user>
<externalID>51017</externalID>
<userInfo>
<employeeID>51017</employeeID>
<employeeType>Contractor</employeeType>
<userName/>
<firstName>Gail</firstName>
<lastName>Mikasa</lastName>
<email>[email protected]</email>
<costCenter>8506</costCenter>
<departmentCode/>
<departmentName>1200 Corp IT Exec 8506</departmentName>
<businessUnit>1200</businessUnit>
<jobTitle>HR Analyst 4</jobTitle>
<managerID>49541</managerID>
<division>290</division>
<companyName>HQ-Milpitas, US</companyName>
<workphone>
<number/>
</workphone>
<mobilePhone>
<number/>
</customerSet>
</user>
So if you see the header the "encoding=UTF-8" is missing after "version-1.0".
Do we need to configure any properties in File Adapter?? Or is it the standard way of rendering by the adapter.
Please advice.
Thanks in advance!!!

System.out.println(nodeList.item(0).getFirstChild().getNodeValue());

Reading/Writing .xlsx files using Webdynpro for Java

Dear All
I have a requirement to read/write excel files in .xlsx format. I am good in doing it with .xls format using jxl.jar. The jxl.jar doesn't support .xlsx format. Kindly help me in understanding how do I need to proceed on reading/writing .xlsx files using Webdynpro for Java.
Thanks and Regards
Ramamoorthy D

i am using jdk 1.6.22 and IBM WebSphere
when i use poi-3.6-20091214.jar and poi-ooxml-3.6-20091214.jar to read .xlsx file. but i am getting following errors
The project was not built since its classpath is incomplete. Cannot find the class
file for java.lang.Iterable. Fix the classpath then try rebuilding this project.
This compilation unit indirectly references the missing type java.lang.Iterable
(typically some required class file is referencing a type outside the classpath)
how can i resolve it
here is the code that i have used
public class HomeAction extends DispatchAction {
     public ActionForward addpage(
                         ActionMapping mapping,
                         ActionForm form,
                         HttpServletRequest request,
                         HttpServletResponse response)
                         throws Exception {
                         String name = "C:/Documents and Settings/bharath/Desktop/Book1.xlsx";
           FileInputStream fis = null;
           try {
               Object workbook = null;
                fis = new FileInputStream(name);
                XSSFWorkbook wb = new XSSFWorkbook(fis);
                XSSFSheet sheet = (XSSFSheet) wb.getSheetAt(0);
                Iterator rows = sheet.rowIterator();
                int number=sheet.getLastRowNum();
                System.out.println(" number of rows"+ number);
                while (rows.hasNext())
                    XSSFRow row = ((XSSFRow) rows.next());
                    Iterator cells = row.cellIterator();
                    while(cells.hasNext())
                XSSFCell cell = (XSSFCell) cells.next();
                String Value=cell.getStringCellValue();
                System.out.println(Value);
           } catch (IOException e) {
                e.printStackTrace();
           } finally {
                if (fis != null) {
                     fis.close();
            return mapping.findForward("returnjsp");

Writing Data to a file using TEXT_IO in Forms

I have a situtation where i have 5 columns and having arabic as well as english data. when i want to write this data to a txt file using TEXT_IO in a specific format, it writes to a file but as soon as it finds an arabic field, it changes the posistion. how can i write to a txt file in the posistion i want???

vaishnavinatarajan wrote:
How to write data to a file without leaving any blank lines in the file? How to check if the cursor is placed in the corner of a notepad file using LAB VIEW?
If you write data to a file, simply don't include any blank lines. We cannot give more specific advice unless you are telling us how you are writing. Are you writing to a new file or appending to an existing file. If the blank lines already exist, you need to read the entire file, remove the undesired lines from the string, and write the data back.
Notepad files don't have any "corners". Please describe what you are trying to do.
What is "LAB VIEW"?
LabVIEW Champion . Do more with less code and in less time .

Writing File and File Member to AS400 using Access Classes

Hi! All,
I am in a fix here and would sincerely appreciate any help I can get. I need to write a pogram that will allow me to write a file and many FileMembers to the File in the AS400.
I have the following method which I thought would help me do it, but I get exceptions.
public static void writeFileOnAS400(String pFileName, String pFileMemberName, String pContents ) throws Exception
AS400 as400 = new AS400();
String as400FileName = "/QSYS.LIB/MYLIB.LIB/" + pFileName + ".FILE";
String as400MemberName = pFileMemberName + ".MBR";
// Create a file object that represents the file
SequentialFile newFile = new SequentialFile(as400, as400FileName + "/" + as400MemberName);
// Create the file
newFile.create(pContents.getBytes().length, "*DATA", "Data file created with " + pContents.getBytes().length + "byte record." );
// Open the file for writing only.
// Note: The record format for the file
// has already been set by create()
newFile.open(AS400File.WRITE_ONLY, 0, AS400File.COMMIT_LOCK_LEVEL_NONE);
// Write a record to the file. Because the record
// format was set on the create(), getRecordFormat()
// can be called to get a record properly formatted
// for this file.
Record writeRec = newFile.getRecordFormat().getNewRecord();
writeRec.setField(0, pContents);
newFile.write(writeRec);
// Close the file since I am done using it
newFile.close();
// Disconnect since I am done using
// record-level access
as400.disconnectService(AS400.RECORDACCESS);
This works the first time for the 1st Member(ie; when te file or Member is not yet created). When I want to add a new Member to the same file, by passing in the same fileName, but a different fileMemberName, it does not work. The string pContents is what I need to write to the Member.
Anyone Know about the AS400?
Thanks

The whole class is as shown below
import com.ibm.as400.access.*;
public class AS400Utility
public static void writeFileOnAS400(String pFileName, String pFileMemberName, String pContents ) throws Exception
AS400 as400 = new AS400();
String as400FileName = "/QSYS.LIB/IQFILES.LIB/" + pFileName + ".FILE";
String as400MemberName = pFileMemberName + ".MBR";
// Create a file object that represents the file
SequentialFile newFile = new SequentialFile(as400, as400FileName + "/" + as400MemberName);
// Create the file
newFile.create(pContents.getBytes().length, "*DATA", "Data file created with " + pContents.getBytes().length + "byte record." );
// Open the file for writing only.
// Note: The record format for the file
// has already been set by create()
newFile.open(AS400File.WRITE_ONLY, 0, AS400File.COMMIT_LOCK_LEVEL_NONE);
// Write a record to the file. Because the record
// format was set on the create(), getRecordFormat()
// can be called to get a record properly formatted
// for this file.
Record writeRec = newFile.getRecordFormat().getNewRecord();
writeRec.setField(0, pContents);
newFile.write(writeRec);
// Close the file since I am done using it
newFile.close();
// Disconnect since I am done using
// record-level access
as400.disconnectService(AS400.RECORDACCESS);
public static void main(String args[])
System.out.println("Writing file to AS400...");
try
writeFileOnAS400_2("BPL0000004", "M001", "<SampleXML>The sample file 1</SampleXML>");
System.out.println("Finished writing file 1");
writeFileOnAS400_2("BPL0000004", "M002", "<SampleXML>The sample file 2</SampleXML>");
catch(Exception e)
e.printStackTrace();
System.out.println("Completed file writing to AS400...");
}

Reading and Writing large Excel file using JExcel API

hi,
I am using JExcelAPI for reading and writing excel file. My problem is when I read file with 10000 records and 95 columns (file size about 14MB), I got out of memory error and application is crashed. Can anyone tell me is there any way that I can read large file using JExcelAPI throug streams or in any other way. Jakarta POI is also showing this behaviour.
Thanks and advance

Sorry when out of memory error is occurred no stack trace is printed as application is crashed. But I will quote some lines taken from JProfiler where this problem is occurred:
          reader = new FileInputStream(new File(filePath));
          workbook = Workbook.getWorkbook(reader);
          *sheeet = workbook.getSheet(0);* // here out of memory error is occured
           JProfiler tree:
jxl.Workbook.getWorkBook
      jxl.read.biff.File
             jxl.read.biff.CompoundFile.getStream
                   jxl.read.biff.CompoundFile.getBigBlockStream Thanks

Problem while writing data on xls file using jxl API

Hi,
I am getting problem while writing data on excel file using jxl api.
When i write data on file and all handles associated to the file are closed, file size increases but when i open the file nothing is written in it and when file is closed manually from excel window, file size decreased to its original that was before writing data.
here is code:
          FileOutputStream os = new FileOutputStream(this.dirPath + this.fileName, true);
          WritableWorkbook this.workbook = Workbook.createWorkbook(os);
after writing data following handler are closed:
this.os.flush();
                    this.workbook.write();
                    this.workbook.close();
                    this.os.close();
                    this.os = null;
can any body help me.
Thanks in advance

Err, I did help you. I did understand your problem; and I solved it for you. What was missing was that you apparently made no effort to understand what you were being told. Or even consider it. You just argued about it, as though you were the one with the solution, instead of the one whose code didn't work.
And the other thing that was missing was the part where you said 'thank you' to me for solving your problem. Somewhat more appropriate than biting the hand that fed you, frankly. I do this for nothing, on my own gas, and it's extremely irritating when people keep asking about problems I have already solved for them. I am entitled to discourage that. It's part of making them more efficient actually.
But it happens often enough that it also makes me think I'm just wasting my time. Probably I am.

Writing to a file using log4j

Hi ,
I am facing an issue in rolling out file on an hourly basis. I have a source file , say usagelog_date.log which records logging, then after an hour an hour I have to separate that file , give it a different name say usagelog_date.10.log , I copy the contents of the source file into the rolling file, and make that source file empty. But after making that file empty when I am writing to the file using some threads simultaneously, I get some blank characters first and only after that the logging starts, that increases the file size to a large extent.
My java code which does this separation is as follows.
package com.proquest.services.usage.helper;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.nio.channels.FileLock;
import java.util.Calendar;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class UsageRotator {
     private Log scpLog = LogFactory.getLog("SCPLog");
     public String rotateAndReturnFilename(String rotationdate, String location) throws Exception {
          Calendar calendar = Calendar.getInstance();
          int hour_of_day = calendar.get(Calendar.HOUR_OF_DAY);
          String rotationalTime = ((hour_of_day < 10) == true) ? "0" + hour_of_day : "" + hour_of_day;
          String rotatedFileName = null;
          File usageLoggingLogFile = new File(location + "usagelogging." + rotationdate + ".log");
          if (usageLoggingLogFile != null && usageLoggingLogFile.exists()) {
               File usageLoggingRotatedFile = new File(location + "usagelogging." + rotationdate + "." + rotationalTime + ".log");
               copyFile(usageLoggingLogFile, usageLoggingRotatedFile);
//copying the contents of source file to a rolling file
               FileOutputStream fout = new FileOutputStream();
// making the source file empty fout.flush();
               usageLoggingLogFile.setWritable(true);
               boolean isEmpty = isFileEmpty(usageLoggingLogFile);
               if(isEmpty)
                    scpLog.info("Existing file has been empty so it's good to proceed for looging next occurances");
               rotatedFileName = usageLoggingRotatedFile.getName();
               scpLog.info("Log file has been rotated to "+rotatedFileName);
          } else {
               throw new Exception("File rotation failed : UsageLogging file couldn't be found for the supplied date");
          return rotatedFileName;
     private void copyFile(File source, File destn) throws Exception {
          FileInputStream fis = new FileInputStream(source);
     FileOutputStream fos = new FileOutputStream(destn);
     try {
     byte[] buf = new byte[1024];
     int i = 0;
     while ((i = fis.read(buf)) != -1) {
     fos.write(buf, 0, i);
     catch (FileNotFoundException e) {
     throw new Exception("[ERROR] File copy failed");
     finally {
     if (fis != null) fis.close();
     if (fos != null) fos.close();
     private boolean isFileEmpty(File file) throws Exception {
          FileReader fr = new FileReader(file);
          BufferedReader br = new BufferedReader(fr);
          boolean isEmpty = true;
          while (br.readLine() != null) {
               isEmpty = false;
          return isEmpty;
And my log4j file with which I am writing is
# Default is to send information messages and above to the console
log4j.rootLogger = DEBUG, DailyLogFileAppender
# Logger configurations
#log4j.logger.com.proquest.services.usage=DEBUG, DailyLogFileAppender
log4j.logger.com.proquest.services.UsageLog=INFO, UsageLogFileAppender
# Appender configurations
# Define an appender which writes to a file which is rolled over daily
log4j.appender.DailyLogFileAppender = com.proquest.services.log.PqDailyRollingFileAppenderExt
log4j.appender.DailyLogFileAppender.File = logs/usagelogging/usagelogging-error.log
log4j.appender.DailyLogFileAppender.DatePattern = '.'yyyy-MM-dd
log4j.appender.DailyLogFileAppender.Append = true
log4j.appender.DailyLogFileAppender.layout = org.apache.log4j.PatternLayout
log4j.appender.DailyLogFileAppender.layout.ConversionPattern=%d{ISO8601} %m%n
log4j.additivity.com.proquest.services.usage = false
log4j.additivity.com.proquest.services.UsageLog = false
log4j.appender.UsageLogFileAppender = com.proquest.services.log.PqDailyRollingFileAppenderExt
log4j.appender.UsageLogFileAppender.File = logs/usagelogging/usagelogging.log
log4j.appender.UsageLogFileAppender.DatePattern = '.'yyyy-MM-dd
log4j.appender.UsageLogFileAppender.Append = true
log4j.appender.UsageLogFileAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.UsageLogFileAppender.layout.ConversionPattern=%d{ISO8601} %m%n
Can somebody please suggest me what to do, as I have been badly deadlocked into the problem.
Thanks
Suman

neoghy wrote:
... rolling out file on an hourly basis.
And my log4j file with which I am writing is
# Default is to send information messages and above to the console
log4j.rootLogger = DEBUG, DailyLogFileAppender
# Logger configurations
#log4j.logger.com.proquest.services.usage=DEBUG, DailyLogFileAppender
log4j.logger.com.proquest.services.UsageLog=INFO, UsageLogFileAppender
# Appender configurations
# Define an appender which writes to a file which is rolled over daily
log4j.appender.DailyLogFileAppender = com.proquest.services.log.PqDailyRollingFileAppenderExt
log4j.appender.DailyLogFileAppender.File = logs/usagelogging/usagelogging-error.log
log4j.appender.DailyLogFileAppender.DatePattern = '.'yyyy-MM-dd
log4j.appender.DailyLogFileAppender.Append = true
log4j.appender.DailyLogFileAppender.layout = org.apache.log4j.PatternLayout
log4j.appender.DailyLogFileAppender.layout.ConversionPattern=%d{ISO8601} %m%n
log4j.additivity.com.proquest.services.usage = false
log4j.additivity.com.proquest.services.UsageLog = false
log4j.appender.UsageLogFileAppender = com.proquest.services.log.PqDailyRollingFileAppenderExt
log4j.appender.UsageLogFileAppender.File = logs/usagelogging/usagelogging.log
log4j.appender.UsageLogFileAppender.DatePattern = '.'yyyy-MM-dd
log4j.appender.UsageLogFileAppender.Append = true
log4j.appender.UsageLogFileAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.UsageLogFileAppender.layout.ConversionPattern=%d{ISO8601} %m%nCan somebody please suggest me what to do, as I have been badly deadlocked into the problem.I assume you mean [DailyRollingFileAppender ^apache^|http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/DailyRollingFileAppender.html]
log4j.appender.DailyRollingFileAppender.DatePattern = '.'yyyy-MM-dd-HH

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