reading and writing excel file
In this program, we are going to read and write the
excel sheet using java .
The package we need to import is :
java.io.*,
org.apache.poi.hssf.usermodel.HSSFSheet,
org.apache.poi.poifs.filesystem.POISFileSystem,
org.apache.poi.hssf.usermodel. HSSFWorkbook
org.apache.poi.poif.filesystem.POIFileSystem class is used to buffer
the excel file into an object. In other words, we can say that it is used to read
the excel file. After reading the excel file we use write() method to write into
any excel file.
We can read any file and write it into other
excel file by this way. You can add new cell and rows or you can set any
default values for any cells. This means you can read excel file and modify it according
to your need.
To run this example you have to download the excel
file and code first then make folder with the name of excel in C drive then copy the
excel file and copy the code into webapps then follow the steps as defined in previous
examples.
The code of the program is given below:
<%@ page import="org.apache.poi.hssf.usermodel.HSSFSheet"%>
<%@ page import="org.apache.poi.hssf.usermodel.HSSFWorkbook"%>
<%@ page import="org.apache.poi.poifs.filesystem.POIFSFileSystem"%>
<%@ page contentType="application/vnd.ms-excel" %>
<%@ page import="java.io.*" %>
<%
try{
POIFSFileSystem fs=new POIFSFileSystem(new FileInputStream
("c:\\excel\\rajesh1.xls"));
HSSFWorkbook wb=new HSSFWorkbook(fs);
FileOutputStream fileOut = new FileOutputStream(
"c:\\excel\\readingWriting.xls");
wb.write(fileOut);
fileOut.close();
out.println("Your excel file has been generated");
} catch ( Exception ex ) {
}
%>
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The output of the program is given below:
Download this excel file.
Download this example.
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Current Comments
1 comments so far (post your own) View All Comments Latest 10 Comments:This web site is very good for all learners
i want to become a member of this what to do.
Posted by Ashik on Tuesday, 05.29.07 @ 13:28pm | #17627