POI读取excel

import java.io.FileInputStream;
import java.util.ArrayList;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;

public class TestPOIreadExcel {
   public static void main(String[] args) throws Exception {
   	String base="C:/Documents and Settings/Administrator/桌面/";
	String e2007 = "1.xlsx";
	String e2003 = "1.xls";
	String path =base+e2003;
	Sheet esheet =null;
	 if(path.indexOf(".xlsx")!=-1) {  
		 org.apache.poi.xssf.usermodel.XSSFWorkbook wb = new org.apache.poi.xssf.usermodel.XSSFWorkbook(new FileInputStream(path));  
		 org.apache.poi.xssf.usermodel.XSSFSheet sheet = wb.getSheetAt(0);  //获取2007excel第一页
		 esheet = sheet;
     }else {  
    	 org.apache.poi.hssf.usermodel.HSSFWorkbook wb = new org.apache.poi.hssf.usermodel.HSSFWorkbook(new FileInputStream(path));  
    	 org.apache.poi.hssf.usermodel.HSSFSheet sheet = wb.getSheetAt(0);   //获取2003excel第一页
    	 esheet = sheet;
     }  
	 int[] cols = new int[]{0,1};
	 // readExcel(excel标签页,获取行,获取列);
	 readExcel(esheet,1,cols);
   }
   
   protected static ArrayList<String> readExcel(Sheet sheet, int rownum,int[] cols) {
	   ArrayList<String> rowData = new ArrayList<String>();
	   
	   for (int colIndex : cols) {
		   Row row = sheet.getRow(rownum);
		   Cell cell = row.getCell(colIndex);
		   rowData.add(getCellValue(cell));
		}
	   
		return rowData;
	}
   
   /** 获取单元格内容 */
	private static  String getCellValue(Cell cell) {
		if (cell == null) {
			return "";
		}
		String value = cell.toString().trim();
		System.out.println(value+"===============");
		try {
			// This step is used to prevent Integer string being output with '.0'.
			Float.parseFloat(value);
			value = value.replaceAll("\\.0$", "");
			value = value.replaceAll("\\.0+$", "");
			return value;
		} catch (NumberFormatException ex) {
			return value;
		}
	}
}