poi+java

    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<Row> 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<Cell> 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(); 
            } 
        } 
    }