java导出excel简单实例

   

  

    HSSFWorkbook work = new HSSFWorkbook();

    //创建一张表

    HSSFSheet sheet = work.createSheet("项目固定资产投入情况表");

    //创建行

    HSSFRow rows = null;

    //创建单元格

    HSSFCell cell = null;

    rows = sheet.createRow(0);

    cell = rows.createCell((short)0);

    cell.setCellValue("年份");

    cell = rows.createCell((short)1);

    cell.setCellValue("月份");

    cell = rows.createCell((short)2);

    cell.setCellValue("状态");

    cell = rows.createCell((short)3);

    cell.setCellValue("提交时间");

    cell = rows.createCell((short)4);

    cell.setCellValue("备注");

    //10行3列

    for(short r = 0;r<list.size();r++){

     rows = sheet.createRow(r+1);

     cell = rows.createCell((short)0);

     cell.setCellValue(list.get(r).getId().getNian());

     cell = rows.createCell((short)1);

     cell.setCellValue(list.get(r).getId().getYue());

     cell = rows.createCell((short)2);

     cell.setCellValue(list.get(r).getIsSubmit());

     cell = rows.createCell((short)3);

     cell.setCellValue(new SimpleDateFormat().format(list.get(r).getSubmitDate()));

     cell = rows.createCell((short)4);

     cell.setCellValue(list.get(r).getRemarks());

    

    

    }

    ByteArrayOutputStream arrayIo=new ByteArrayOutputStream();

      try {

    work.write(arrayIo);

   } catch (IOException e) {

    // TODO Auto-generated catch block

    e.printStackTrace();

   }

      byte[] by=arrayIo.toByteArray();

         InputStream is = new  ByteArrayInputStream(by);

         if(arrayIo!=null){

          try {

     arrayIo.close();

    } catch (IOException e) {

     // TODO Auto-generated catch block

     e.printStackTrace();

    }

         }

  return is;