Question

JAVA 怎么实现将查询数据库的结果导出excel表格

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Answer 1

前段时间正好做了，导入和导出的，你自己看吧
 /**导出数据为XLS格式
  * @param fos
  * @param bo
  */
 public void writeExcelBo(FileOutputStream fos, java.util.Vector ve)
 {
  jxl.write.WritableWorkbook wwb;
  try
  {
   wwb= Workbook.createWorkbook(fos);
   jxl.write.WritableSheet ws= wwb.createSheet("booksheet", 10);
   ws.addCell(new jxl.write.Label(0, 1, "书目ID"));
   ws.addCell(new jxl.write.Label(1, 1, "ISBN"));
   ws.addCell(new jxl.write.Label(2, 1, "定价"));
   ws.addCell(new jxl.write.Label(3, 1, "书名"));
   ws.addCell(new jxl.write.Label(4, 1, "原书名"));
   ws.addCell(new jxl.write.Label(5, 1, "副题名"));
   ws.addCell(new jxl.write.Label(6, 1, "著者"));
   ws.addCell(new jxl.write.Label(7, 1, "译者"));
   ws.addCell(new jxl.write.Label(8, 1, "版次"));
   ws.addCell(new jxl.write.Label(9, 1, "出版地"));
   ws.addCell(new jxl.write.Label(10, 1, "出版社"));
   ws.addCell(new jxl.write.Label(11, 1, "出版日期"));
   ws.addCell(new jxl.write.Label(12, 1, "页数"));
   ws.addCell(new jxl.write.Label(13, 1, "书高"));
   ws.addCell(new jxl.write.Label(14, 1, "装帧"));
   ws.addCell(new jxl.write.Label(15, 1, "丛书名"));
   ws.addCell(new jxl.write.Label(16, 1, "一般性附注项"));
   ws.addCell(new jxl.write.Label(17, 1, "简介"));
   ws.addCell(new jxl.write.Label(18, 1, "主题词"));
   ws.addCell(new jxl.write.Label(19, 1, "中图法分类"));
   ws.addCell(new jxl.write.Label(20, 1, "更新日期"));
   ws.addCell(new jxl.write.Label(21, 1, "本数"));
   book=new Book[ve.size()];
   for (int i= 0; i < ve.size(); i++)
   {
    book[i]= (Book)ve.get(i);
    ws.addCell(new jxl.write.Label(0, i + 2, "" + book[i].getBookId()));
    ws.addCell(new jxl.write.Label(1, i + 2, book[i].getIsbn()));
    ws.addCell(new jxl.write.Label(2, i + 2, "" + book[i].getPrice()));
    ws.addCell(new jxl.write.Label(3, i + 2, book[i].getBookTitle()));
    ws.addCell(new jxl.write.Label(4, i + 2, book[i].getOldFilename()));
    ws.addCell(new jxl.write.Label(5, i + 2, book[i].getSubTitle()));
    ws.addCell(new jxl.write.Label(6, i + 2, book[i].getWriter()));
    ws.addCell(new jxl.write.Label(7, i + 2, book[i].getTranscribe()));
    ws.addCell(new jxl.write.Label(8, i + 2, "" + book[i].getVersion()));
    ws.addCell(new jxl.write.Label(9, i + 2, book[i].getPublishCity()));
    ws.addCell(new jxl.write.Label(10, i + 2, book[i].getPublisher()));
    ws.addCell(new jxl.write.Label(11, i + 2, book[i].getPublishDate().toString()));
    ws.addCell(new jxl.write.Label(12, i + 2, "" + book[i].getPage()));
    ws.addCell(new jxl.write.Label(13, i + 2, "" + book[i].getHight()));
    ws.addCell(new jxl.write.Label(14, i + 2, book[i].getInstall()));
    ws.addCell(new jxl.write.Label(15, i + 2, book[i].getSeries()));
    ws.addCell(new jxl.write.Label(16, i + 2, book[i].getNotes()));
    ws.addCell(new jxl.write.Label(17, i + 2, book[i].getPrecisnotes()));
    ws.addCell(new jxl.write.Label(18, i + 2, book[i].getSubject()));
    ws.addCell(new jxl.write.Label(19, i + 2, book[i].getCls().replaceAll("_", "")));
    ws.addCell(new jxl.write.Label(20, i + 2, book[i].getUpdatedate().toString()));
    ws.addCell(new jxl.write.Label(21, i + 2, "0"));
   }
   jxl.write.WritableFont wfc=
    new jxl.write.WritableFont(
     WritableFont.ARIAL,
     255,
     WritableFont.BOLD,
     false,
     UnderlineStyle.NO_UNDERLINE,
     jxl.format.Colour.BLACK);
   jxl.write.WritableCellFormat wcfFC= new jxl.write.WritableCellFormat(wfc);
   ws.addCell(new jxl.write.Label(0, 0, "为保证您提交定单的稳定和正确，导入定单时候请勿更改此表格式（请勿更改书目ID,订购本数自行添加！）"));
   wwb.write();
   //关闭Excel工作薄对象
   wwb.close();
  } catch (IOException e)
  {} catch (RowsExceededException e)
  {} catch (WriteException e)
  {}
 }
 
 
   //导入EXCEL
   if (f.getName().indexOf(".xls") > 0)
   {
    try
    {
     fis= new FileInputStream(f);
     BookBean bob= new BookBean();
     UserBean usb= new UserBean();
     jxl.Workbook rwb= Workbook.getWorkbook(fis);
     jxl.Sheet sh= rwb.getSheet(0);
     int rowCount= sh.getRows();
     SimpleDateFormat sdf= new SimpleDateFormat("dd/MM/yyyy");
     book= new Book[rowCount - 1];
     for (int i= 1; i < rowCount; i++)
     {
      book[i - 1]= new Book();
      jxl.Cell[] ce= sh.getRow(i);
      book[i - 1].setIsbn(ce[0].getContents().toString());
      book[i - 1].setSeries(ce[1].getContents().toString());
      book[i - 1].setBookTitle(ce[2].getContents().toString());
      book[i - 1].setWriter(ce[3].getContents().toString());
      book[i - 1].setTranscribe(ce[4].getContents().toString());
      book[i - 1].setPublisher(ce[5].getContents().toString());
      book[i - 1].setPublishDate(sdf.parse(ce[6].getContents().toString(), new ParsePosition(0)));
      book[i-1].setVersion(Integer.parseInt(ce[7].getContents().toString()));
      book[i-1].setPage(Integer.parseInt(ce[8].getContents().toString()));
      book[i-1].setCls(ce[9].getContents().toString());
      book[i-1].setPrecisnotes(ce[10].getContents().toString());
      book[i-1].setInstall(ce[11].getContents().toString());
      book[i-1].setPrice(Float.parseFloat(ce[12].getContents().toString()));
      book[i-1].setUserid(usb.getUser().getUserid());
      getVector().addElement(book[i - 1]);
     }
     rwb.close();
     fis.close();
    } catch (FileNotFoundException e)
    {} catch (BiffException e)
    {} catch (IOException e)
    {} catch (NumberFormatException e)
    {
     ShowMessage("数据导入失败，请按照本软件要求的EXCEL格式导入定单");
    }
   }

Answer 2

设置到表格中然后输出去