Getting an exception

sir i changed to that ie
InputStream myInput1 = new FileInputStream(fileName);
HSSFWorkbook myWorkBook = new HSSFWorkbook(myInput1);

but when i click on a browse button and attached a file and then click on a read button to read a file it is displaying a new file instead of showing a what i have attached(file), in server console i m gtting a following exception please help me sir if an changes tel me sir

thanks in advance..



java.io.IOException: Invalid header signature; read 0x3109696E69726168, expected
0xE11AB1A1E011CFD0
at org.apache.poi.poifs.storage.HeaderBlockReader.<init>(HeaderBlockRead
er.java:107)
at org.apache.poi.poifs.filesystem.POIFSFileSystem.<init>(POIFSFileSyste
m.java:151)
at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:3
17)
at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:2
98)
at com.antares.Action.ReadExcelFile.ReadCSV(ReadExcelFile.java:24)
at org.apache.jsp.jsp.ReadExcelFile_jsp._jspService(ReadExcelFile_jsp.ja
va:70)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
.java:374)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3
42)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:286)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:845)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ss(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:44
7)
at java.lang.Thread.run(Thread.java:595)





following is m code sir


//ReadExcelFile .java
package com.antares.Action;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.Iterator;
import java.util.Vector;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;



public class ReadExcelFile {

// @SuppressWarnings("unchecked")
public static Vector ReadCSV(String fileName) {
Vector cellVectorHolder = new Vector();

try {
FileInputStream myInput = new FileInputStream(fileName);
InputStream myInput1 = new FileInputStream(fileName);
HSSFWorkbook myWorkBook = new HSSFWorkbook(myInput1);
HSSFSheet mySheet = myWorkBook.getSheetAt(0);

Iterator rowIter = mySheet.rowIterator();

while (rowIter.hasNext()) {
HSSFRow myRow = (HSSFRow) rowIter.next();
Iterator cellIter = myRow.cellIterator();
Vector cellStoreVector = new Vector();
while (cellIter.hasNext()) {
HSSFCell myCell = (HSSFCell) cellIter.next();
cellStoreVector.addElement(myCell);
}
cellVectorHolder.addElement(cellStoreVector);
}
} catch (Exception e) {
e.printStackTrace();
}
return cellVectorHolder;
}

//@SuppressWarnings({ "unused", "unchecked" })
public static void printCellDataToConsole(Vector dataHolder) {

for (int i = 0; i < dataHolder.size(); i++) {
Vector cellStoreVector = (Vector) dataHolder.elementAt(i);
for (int j = 0; j < cellStoreVector.size(); j++) {
HSSFCell myCell = (HSSFCell) cellStoreVector.elementAt(j);
String stringCellValue = myCell.toString();
System.out.print(stringCellValue + "\t");
}
System.out.println();
}
}

}


//excel.jsp

<%@ page language="java" import="java.io.*" %>
<form method="post" action="success.jsp">
<p><font color="#800000" size="5">Enter XLS file name:</font>
<input type="text" name="filename" size="20"></p>
<p><input type="submit" value="Create"
onclick="document.location='success.jsp';"/>
</p>
</form>
<form method="post" action="ReadExcelFile.jsp">
<p><font color="#800000" size="5">Enter XLS File Name To Read:</font>
<input type="file" name="filename" size="20"></p>
<p><input type="submit" value="Click Here To Read"
onclick="document.location='ReadExcelFile.jsp';"/>
</p>
</form>


//ReadexcelFile.jsp
<%@ page contentType="application/vnd.ms-excel"%>
<%@ page import="com.antares.Action.ReadExcelFile"%>
<%@ page import="java.io.*"%>
<%@ page import="java.util.Iterator"%>
<%@ page import="java.util.Vector"%>


<%
ReadExcelFile readExcelFile = new ReadExcelFile();

String fileName = request.getParameter("filename");
System.out.println("***file name is " + fileName);
Vector dataHolder = readExcelFile.ReadCSV(fileName);
ReadExcelFile.printCellDataToConsole(dataHolder);
%>