jsp导入excel

package com.lsf;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFCell;
import java.sql.*;
import java.io.*;
import java.util.ArrayList;
import java.sql.Connection;
public class ReadExcelTest
{
private Connection con;
String url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=test";
String DBDriver="com.microsoft.jdbc.sqlserver.SQLServerDriver";
String USER="sa";
String PWD="sa";
private ArrayList listFirstColum = new ArrayList();
private ArrayList listSecondColum = new ArrayList();
  // 连接数据库
  public ReadExcelTest() throws Exception
  {
   try
   {
    Class.forName(DBDriver);
    con=DriverManager.getConnection(url,USER,PWD);
   }
   catch(Exception e)
   {
     e.printStackTrace();
     throw(new Exception("Sorry,database connecting failed!"));
    }
 }
  // 从excel中读取数据存入ArrayList中
  public void readExcel(String sFileName)
   {
  try
  {
   HSSFWorkbook workbook = new HSSFWorkbook(new FileInputStream(sFileName));// 读取excel文件
   HSSFSheet sheet = workbook.getSheetAt(0);// 读取第一个sheet
   for(int i=0;i<=sheet.getLastRowNum();i++)// 循环取得所有行
   {
    if(sheet.getRow(i)!=null)
    {
     HSSFRow aRow = sheet.getRow(i);// 行数
     HSSFCell cellFirstColum = aRow.getCell((short)0);// 第一列
     HSSFCell cellSecondColum = aRow.getCell((short)1);// 第二列
     // 把数据存入list里备用