Excel导出（poi）

生成excel:

//创建workbook对象Workbook wb =newHSSFWorkbook();FileOutputStream fileOut =null;try{   //创建sheet   Sheet sheet = wb.createSheet("sheet0");   Row row0 = sheet.createRow(0);//创建一行   Cell cell0 = row0.createCell(0);   cell0.setCellValue("姓名");   Cell cell1 = row0.createCell(1);   cell1.setCellValue("年龄");   Cell cell2 = row0.createCell(2);   cell2.setCellValue("手机");   Row row1 = sheet.createRow(1);   Cell cell10 = row1.createCell(0);   cell10.setCellValue("张三");   Cell cell11 = row1.createCell(1);   cell11.setCellValue((short)18);   Cell cell12 = row1.createCell(2);   cell12.setCellValue("188888888888");   fileOut =newFileOutputStream("D:\\tmp\\workbook.xls");   wb.write(fileOut);   fileOut.close();    解析excel
    Workbook wb =newHSSFWorkbook(newFileInputStream("D:\\tmp\\workbook.xls"));    Sheet sheet = wb.getSheetAt(0);    intcounts = sheet.getLastRowNum();    for(inti=1;i<=counts;i++){       Row row = sheet.getRow(i);       System.out.println("姓名："+row.getCell(0).getStringCellValue()+"年龄："+row.getCell(1).getNumericCellValue()+"手机："+row.getCell(2).getStringCellValue());    }}catch(Exception e){    // ignore}