With Apache POI it is possible to password protect an excel file. PFB for the code. But it is working with XLSX extension [2010 Excel format], But not with XLS [2003 Excel format].how to accomplish the same
package com.excel.utility;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.security.GeneralSecurityException;
[code]..
How to read Password protected Excel file using java. Actually i read normal excel file(without password protection) successfully, using some standard codings with support POI jars. But i am unable to read password protected xls file.
View Replies View RelatedI have also tried above code with few changes but I got error. Code and error show below.
Java Code:
package practice;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.MalformedURLException;
[Code] .....
Error:
Java Code:
Jun 16, 2014 6:21:33 PM practice.TestFTPProgram main
SEVERE: null
java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
[Code] .....
I have a problem with several java applications. When I start them Java wants to connect to the certificate authority, to check if the certificate is still valid and not on a blacklist.
The problem is: my whole internet is behind a password protected proxy. If I open my browser i get a windows with username and password. I enter it and internet in the browser works. But for Java it isn't working, because I see no point, where I can enter the password and username for the proxy. I can enter the proxy ip and port in the java settings, but not the password and username. So I get a error screen from java, telling me, that java could not connect. I can disable the check in the java settings, but I don't wont that.
Is there a way to tell java, that java uses my proxy with my password and username? I already googled this problem and found nothing except tutorials for connecting with proxy in the java code. But these applications are not from me, I can't change the code ...
I need to get excel file into jtable . I'm searching for this problem for 1 weak and no results . I downloaded hssf packages and didn't make a change in reading...
View Replies View Relatedi don't have good grip in java, basically i am a software Tester and rightnow i am automating my application with Selenium (Testing Tool) so i need to write a script in java, so far i Worked with QTP for the same but in that its really easy to Data Driven test with Excel but here i am facing lots of problem. how to read/Write data from excel with java. how can i create input dialog box (like prompt in jscript) ?
View Replies View RelatedWhat i basically do is that i read the information of what course that needs to be updated with a new course date and then i log into the wordpress page and navigate to the course and add the date.
I need the java program to be able to do these following actions.
1. Open a webpage
2. write to a form
3. click a button
4. search for a text on screen
5. click on a specific place on the screen/click on a link
6. read from an excel file.
and so on...
If I want to load data in excel file into table. what is the best way to do it?
View Replies View RelatedHow to read the excel sheet data and validate that null values are inserted or columns data exceeded with respected to header.and these validated data should be stored into 3 different tables... My requirement is college data excel sheet with combination of all groups like mba,mca,and etc...then re ad the data and find the groups then
1. give entry in the UP_LOAD_DATA_HIST table with this excel data uploading with this user and this date,
2. find the group of the department and save data into CATAGIRY_TBL.
3. Finally save the All data into the students table.
My homework is asking me to write a program that prompts the user to enter a password and displays "valid password" if the rule is followed or "invalid password"
Sample
enter a string for password: wewewx
valid password
It's being graded on
Design of my GUI
Dialog box
User friendliness
Creativity
My current issues with the current code I have written is simply the password doesn't work unless it starts with 2 digits, the other order it displays as wrong. and I have no idea how to add a GUI.
import java.util.*;
import java.lang.String;
import java.lang.Character;
[code]....
I am a beginner in Java and I have a task of reading excel document and converting it into a text file.
View Replies View RelatedJava Code: import jxl.read.biff.BiffException;
import java.io.*;
import java.util.*;
import jxl.*;
import jxl.write.*;
public class MainProgram{
public static void main(String[]args){
try{
Workbook workbook = Workbook.getWorkbook(new File("myfile.xls"));
[Code]...
Not sure why this code isnt working for me, it makes an empty excel file called output, but never copies the contents in "myfile" to that output file. I have Excel 2010 but I saved both of them as 97-2003 workbooks. Am I missing something? Do you have to go cell by cell to copy an excel file with JXL?
text="🎂🍰 Happy Birthday! 🍭🍒🌺💐"
but when i read from excel file after write it into excel file the output is--
???? Happy Birthday! ????????
I have a JSP code which will open the contents of a excel file.
Now i need this contents of the excel file to be added dynamically to a table in the sameJSP. How to proceed.At the maximum 10 rows can be added dynamically.
Assuming i have a table in JSP which has heading first name,last name,DOB and Gender. After opening the excel through JSP the contents needs to be iterated and added to the columns mentioned.
Attached Images
File Type : 10.jpg (21.9 KB)
In jsp, In windows 7 , IE 11 , I am able to get the downloaded file but still unable to open it.
View Replies View RelatedI'm using Apache Poi to create an Excel file from a JTable.
I want to open the file directly in Excel, rather than first write it to disk and then open it from the disk.
FileOutputStream output = new FileOutputStream( StolleExcel.xls" );
workBook.write( output );
Desktop dt = Desktop.getDesktop();
dt.open( new File( "StolleExcel.xls" ) );
output.close();
Is there a temporary way of saving the Excel object then just opening it with Excel, so the user can save or edit whatever they want?
This is the code for reading and sending the mail
package com.abhi;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
[Code] ....
Its showing error like..
BIFFVIEWER REQUIRES A FILENAME***
java.lang.NullPointerException
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at org.apache.poi.hssf.dev.BiffViewer.run(BiffViewer. java:68)
at org.apache.poi.hssf.dev.BiffViewer.main(BiffViewer .java:649)
I am currently working on an application with java and I want to do is upload and download details in .xlsx file. Uploading process is successfully worked but the problem is that when I download the file .xlsx with details at opening the file it gives me the following message :
Excel cannot open the file '(filename)'.xlsx' because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file.
I want to create and write to a excel file from a java program. I found a tutorial online and wrote a java file as under:
Java Code: import java.io.File;
import java.util.Date;
import jxl.*;
import jxl.write.*;
public class jExcel{
WriteableWorkbok workbook = Workbok.createWorkbook(new File("output.xls"));
public static void main(String args[]){
WriteableSheet sheet = workbook.createSheet("First Sheett",0);
Label label = new Label(0,2,"A label record");
sheet.addCell(label);
[code].....
But when I compile this file, I get errors telling that package jxl does not exists and so on. Do I need to download it ?
My system displayed fine with thailand wordings when show in screen, but problem when come to generate excel file, it shows "???" in excel file for thailand wordings. How can i solve this ??
right_enquiry_policy_csv.jsp
From this jsp it will retrieved all details from database and store in arraylist
try{
ArrayList alAll = new ArrayList();
ArrayList alHeader = new ArrayList();
[Code] ....
Here is my excel output. It shows "???" for client with thailand name.
System display for clients details
I need to print contents of database to excel file.Apache POI is the solution but I am not finding a way to print the DB column names/headers into the excel.
E.g.:
incase csv we have opencsv CSVWriter writer = new CSVWriter(new FileWriter(fileName));
System.out.println("writer");
writer.writeAll(rs, true);
will print the db contents with the column headers dynamically whatever the query may be.
Any solution where we can print data and column names without know the query previously as we are getting query at the run time and each time the query is different.
INPUT
DATABASE
Emp Id. Emp Name
111 Mr.Test
EXCEL
Emp Id. Emp Name
111 Mr.Test
Recently we got an issue about file download. We are using below code to fetch the data from backend(DB2) and export to excel.
Before Jan 15 it use to take 2 minutes to download the file (2 MB size). But now its taking half an hour to download.
response.setContentType("application/vnd.ms-excel");
response.setHeader("content-disposition","attachment; filename=Attendance_Report.xls");
We have restarted server, system but still problem exists. We found that there is no code level or data base level or network level issues.
Now we have to see server level issue. What are the factors which effects the file downloading at server level.
We are using websphere 6.1 ,java1.4
username works perfectly, but when I enter password I get this error.
Java Code:
OKbtn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
if(Usernametxt.getText().equals("Admin") &&
(Passwordfld.getPassword().equals("Admin2"))){
System.out.println("permition granted");
}else{
System.out.println("permition Rejected");
[code]....
I am working on a project that requires me to build a database with random access file, representing products, the base product contains a name (about 30 characters), a price (double), and a quantity (integer). I have worked on this project for probably 15+ hours and have tried so many things and feel like I've barley made any progress...
The part i am really struggling with is taking the data from the text file and creating an object array with it using the product class. Once ive accomplished that, i have to use that data to create a random access file with the data.
Here is the base Product class that must be used to create the objects for the array.
public class Product
{
public String pName;
public String stringName;
public double price;
public int quanity;
[Code] .....
And then here is the data from the text file that i must extract to use to create product objects.
Dill Seed,938,34
Mustard Seed,100,64
Coriander Powder,924,18
Turmeric,836,80
Cinnamon (Ground Korintje),951,10
Cinnamon (Ground) Xtra Hi Oil (2x),614,31
Cinnamon (Ground) High Oil (1X),682,19
These continue for about 40-50 entries, they are not separated by a blank line though i had to add those so it would display correctly, each entry is on its own line with name separated with spaces, then price after a comma, then quantity after the second comma.....
New to programming. Am supposed to create a program that reads a text file (of integers) and computes a series of computations on these integers. I don't have the code for the integers in my code yet, (i know how to do those), but am struggling getting the array to simply print in the print writer. I have the user select a text file, read the file with a scanner, and then save the computations done from my code into another file. specifically, the problem is as follows: Write a program that uses a file chooser dialog to select a file containing some integers. The file contains an integer N followed by N integers. The program then uses a file chooser dialog to let the user specify the name and location of an output file to write results to.The data written to the output file will be as follows
(1) The original list of N numbers from the input file,
(2) The original list of N numbers printed in reverse order of how they appear
in the input file.
(3) The sum and average of these numbers,
(4) The minimum of all the numbers,
(5) The maximum of all the numbers.
[import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Writer;
[Code]....