JAVA 实现下载功能 保存为EXCEL格式
首先要添加EXCEL下载用的jar包：jxl-2.6.12.jar
/*
*参数：resopnse对象；Resuqest对象;
*参数： List
* 返回类型是 boolean类型：如果下载成功 则返回true 如果返回false 则下载失败；
**/
public boolean exportExcel(HttpServletResponse response,HttpServletRequest request,
List
try {
//业务要求：获取国际化类型 中文或英文
HttpSession session=request.getSession();
String local=(String)session.getAttribute("local");
ResourceBundle res = null;
if("zh_CN".equals(local)){
res = ResourceBundle.getBundle("applicationMessage",Locale.CHINA);
}else if("en_US".equals(local)){
res = ResourceBundle.getBundle("applicationMessage",Locale.US);
}
// 取得输出流
OutputStream os = response.getOutputStream();
// 清空输出流
response.reset();
// 设定输出文件头 以及文件的名称 这里设置为：activationCode.xls
response.setHeader("Content-disposition", "attachment; filename=activationCode.xls");
// 定义输出类型 ######这里很重要一定要设置为：application/msexcel
response.setContentType("application/msexcel");
// 建立excel文件
WritableWorkbook wbook = jxl.Workbook.createWorkbook(os);
//定义sheet名称
String tmptitle = "ActivationCode";
// 设置sheet名称
WritableSheet wsheet = wbook.createSheet(tmptitle, 0);
// 设置excel中sheet页名称 以及sheet主题中标题以及显示的样式
WritableFont wfont = new WritableFont(WritableFont.ARIAL, 16,
WritableFont.BOLD, false, UnderlineStyle.NO_UNDERLINE,
Colour.BLACK);
WritableCellFormat wcfFC = new WritableCellFormat(wfont);
wcfFC.setBackground(Colour.AQUA);
wsheet.addCell(new Label(0, 0, tmptitle, wcfFC));
wfont = new jxl.write.WritableFont(WritableFont.ARIAL, 14,
WritableFont.BOLD, false, UnderlineStyle.NO_UNDERLINE,
Colour.BLACK);
wcfFC = new WritableCellFormat(wfont);
// 开始生成主体内容 对应的字段名称
wsheet.addCell(new Label(0, 2, "id"));
wsheet.addCell(new Label(1, 2, "code"));
wsheet.addCell(new Label(2, 2, "gift_pk_set"));
wsheet.addCell(new Label(3, 2, "game"));
wsheet.addCell(new Label(4, 2, "channel"));
wsheet.addCell(new Label(5, 2, "starttime"));
wsheet.addCell(new Label(6, 2, "expiredtime"));
wsheet.addCell(new Label(7, 2, "device"));
wsheet.addCell(new Label(8, 2, "uid"));
wsheet.addCell(new Label(9, 2, "roleId"));
wsheet.addCell(new Label(10, 2, "partition"));
wsheet.addCell(new Label(11, 2, "times"));
wsheet.addCell(new Label(12, 2, "type"));
wsheet.addCell(new Label(13, 2, "rule"));
wsheet.addCell(new Label(14, 2, "level_min"));
wsheet.addCell(new Label(15, 2, "level_max"));
wsheet.addCell(new Label(16, 2, "vip_min"));
wsheet.addCell(new Label(17, 2, "vip_max"));
wsheet.addCell(new Label(18, 2, "batch_name"));
wsheet.addCell(new Label(19, 2, "usetime"));
wsheet.addCell(new Label(20, 2, "ctime"));
//主题内容（多条）
if (sgActivationCodeGmList != null) {
for (int i = 0; i < sgActivationCodeGmList.size(); i++) {
SGActivationCodeGm sgActivation = sgActivationCodeGmList.get(i);
//Label方法中参数：param1:一行中列的设定 param2：一个sheet中行的设定（每个sheet页中的行下标是从0开始的） param3：由行列确定一个坐标后要显示的内容（值）
wsheet.addCell(new Label(0, i + 3, sgActivation.getId()+""));
wsheet.addCell(new Label(1, i + 3, sgActivation.getCodes()));
wsheet.addCell(new Label(2, i + 3, sgActivation.getGift_pk_set()));
wsheet.addCell(new Label(3, i + 3, sgActivation.getGame()));
wsheet.addCell(new Label(4, i + 3, sgActivation.getChannel()));
wsheet.addCell(new Label(5, i + 3, sdf.format(new Date(sgActivation.getStarttime()))));
wsheet.addCell(new Label(6, i + 3, sdf.format(new Date(sgActivation.getExpiredtime()))));
wsheet.addCell(new Label(7, i + 3, sgActivation.getDevice()));
wsheet.addCell(new Label(8, i + 3, sgActivation.getUid()));
wsheet.addCell(new Label(9, i + 3, sgActivation.getRoleId()));
wsheet.addCell(new Label(10, i + 3, sgActivation.getPpartition()));
wsheet.addCell(new Label(11, i + 3, sgActivation.getTimes()+""));
wsheet.addCell(new Label(12, i + 3, sgActivation.getTtype()+""));
wsheet.addCell(new Label(13, i + 3, sgActivation.getRule()+""));
wsheet.addCell(new Label(14, i + 3, sgActivation.getLevel_min()+""));
wsheet.addCell(new Label(15, i + 3, sgActivation.getLevel_max()+""));
wsheet.addCell(new Label(16, i + 3, sgActivation.getVip_min()+""));
wsheet.addCell(new Label(17, i + 3, sgActivation.getVip_max()+""));
wsheet.addCell(new Label(18, i + 3, sgActivation.getBatch_name()));
wsheet.addCell(new Label(19, i + 3, sdf.format(new Date(sgActivation.getUsetime()))));
wsheet.addCell(new Label(20, i + 3, sdf.format(new Date(sgActivation.getCtime()))));
}
}
wbook.write(); // 写入文件
wbook.close();
os.close(); // 关闭流
return true;
} catch (Exception ex) {
ex.printStackTrace();
Logs.logger_errorlog.error(ex);
return false;
}
}