[转] java使用poi.3.10读取excel 2010

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package poi;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Iterator;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class ReadExcel001 {
    public static void main(String[] args) {
        readXml("D:/test.xlsx");
        System.out.println("-------------");
        readXml("d:/test2.xls");
    }
    public static void readXml(String fileName){
        boolean isE2007 = false;    //判断是否是excel2007格式
        if(fileName.endsWith("xlsx"))
            isE2007 = true;
        try {
            InputStream input = new FileInputStream(fileName);  //建立输入流
            Workbook wb  = null;
            //根据文件格式(2003或者2007)来初始化
            if(isE2007)
                wb = new XSSFWorkbook(input);
            else
                wb = new HSSFWorkbook(input);
            Sheet sheet = wb.getSheetAt(0);     //获得第一个表单
            Iterator rows = sheet.rowIterator(); //获得第一个表单的迭代器
            while (rows.hasNext()) {
                Row row = rows.next();  //获得行数据
                System.out.println("Row #" + row.getRowNum());  //获得行号从0开始
                Iterator cells = row.cellIterator();    //获得第一行的迭代器
                while (cells.hasNext()) {
                    Cell cell = cells.next();
                    System.out.println("Cell #" + cell.getColumnIndex());
                    switch (cell.getCellType()) {   //根据cell中的类型来输出数据
                    case HSSFCell.CELL_TYPE_NUMERIC:
                        System.out.println(cell.getNumericCellValue());
                        break;
                    case HSSFCell.CELL_TYPE_STRING:
                        System.out.println(cell.getStringCellValue());
                        break;
                    case HSSFCell.CELL_TYPE_BOOLEAN:
                        System.out.println(cell.getBooleanCellValue());
                        break;
                    case HSSFCell.CELL_TYPE_FORMULA:
                        System.out.println(cell.getCellFormula());
                        break;
                    default:
                        System.out.println("unsuported sell type");
                    break;
                    }
                }
            }
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }
}