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<SGActivationCodeGm> sgActivationCodeGmList 是业务中需要下载的内容 这里是将要下载的内容放到了List中了

* 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<SGActivationCodeGm> sgActivationCodeGmList) {

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;

}

}