I am trying to read an Excel file using Java.
I did this successfully by using org.apache.poi which is returning all of the data column wise.
But now I want to read the same excel file by column names only which will be given by the user. The twisting part is that I want to accept column names from a property file and only those names, which are in the property file, those column's data should be shown by the program. So any suggestions? How do I do it?
use net.sf.supercsv library for reading EXL file by header/column name
Related
I am using multiresourceitemwriter and able to generate multiple files with the difference index, passing flatfileitemwriter as deligate but I want add file name and count of the record into the footer.
Not sure how to do that.please suggest a way.
I have an .xls file which I call it model. Now my probleme is that I want to create over 50 .xls file that have that same format of the model. So properly my question is : how do I create a worksheet (excel file) based on an excel template using java? Is there is any way to do it without copying the style between sheets ??
This example does not use a pre defined template but you can go check out my code and morph it into something worth for you.
https://github.com/ernst223/spread-sheet-exporter
So you can maybe code the style in my class and then use my class for all of your excel files
SpreadSheetExporter spreadSheetExporter = new SpreadSheetExporter(List<Object>, "Filename");
File fileExcel = spreadSheetExporter.getExcel();
as you didn't make any apparent effort before asking i will do the same
excel api
I am generating excel file with dynamic data which having formulas in some cells, When I am opening generated excel file I am getting one popup message from ms excel that:
Excel was able to open the file by repairing or removing the
unreadable content.
Removed Records: Shared formula from /xl/worksheets/sheet1.xml part
Removed Records: Formula from /xl/calcChain.xml part (Calculation
properties)
The log generated by ms excel.
<?xml version="1.0" encoding="UTF-8" standalone="true"?>
-<recoveryLog xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main">
<logFileName>error120920_01.xml</logFileName>
<summary>Errors were detected in file 'C:\fileName.xlsx'</summary>
-<removedRecords summary="Following is a list of removed records:">
<removedRecord>Removed Records: Shared formula from /xl/worksheets/sheet1.xml part</removedRecord>
<removedRecord>Removed Records: Formula from /xl/calcChain.xml part (Calculation properties)</removedRecord>
</removedRecords>
</recoveryLog>
I am not able find the exact root cause of this problem.I want to find which cell creating this problem.
lib version : apache poi 3.11
In excel template file, on one cell excel formula was set and I was trying to set XSSFCell.CELL_TYPE_NUMERIC and assigning numeric value to it using code.
This was causing the problem to open ms excel file.
So i was wondering if there is a way to save my data into a file ,such as a txt file or excel spreedsheatform? (xml parsing?) Because i want row for date, time ,size etc.
Store your data in CSV format and import the file to Excel whenever you need it in a spreadsheet format.
I am trying to read data from a xls which is working fine using
java.io.File f1=new java.io.File("E:/SELENIUM DATA/First_P1/DATA_SHEET.xls");
w = Workbook.getWorkbook(f1);
wworkbook = Workbook.createWorkbook(f1,w);
after some time , if try to open xls , showing file is corrupted. help me.
By looking into your small piece of code it seems you are not following the correct way to read the excel sheet. If you just want to read the excel sheet then there is no need to use createWorkbook(f1,w) or If you want to write something on it then you must be doing something wrong that's why it corrupts your file.
Read/Write Excel sheet
The file should be closed properly once the data read/write from the sheet so that
the mentioned error message will not be prompted.
You can use below commands like
w.write();
w.close();