JAVA导出EXCEL

导出excel调用的方法

/**
     *
     * @param list  导出的数据集合
     * @param request
     * @param response
     */


    public  void exportExcel(List<Student> list, HttpServletRequest request,
                                   HttpServletResponse response) {
        HSSFWorkbook wb = new HSSFWorkbook();

        Sheet sheet = wb.createSheet();
        boolean flag = false;
        String headerTitle="编号,用户名";  //表头
        String[] headerTitles=headerTitle.split(",");
        try {
            Row row = sheet.createRow(0);

            for (int i = 0; i < headerTitles.length; i++) {
                Cell cell = row.createCell(i);
                cell.setCellValue(headerTitles[i]);
            }


            for (int i = 0; i < list.size(); i++) {
                Row rowB = sheet.createRow(i + 1);
                Cell cellB1 = rowB.createCell(0);
                cellB1.setCellValue(list.get(i).getId());

                Cell cellB2 = rowB.createCell(1);
                cellB2.setCellValue(list.get(i).getUsername());

            }

            String filename = "文件名" + DateFormatUtils.formatDateTime(new Date()) + ".xls";
            if (wb != null) {
                if (response != null) {
                    response.setContentType("application/vnd.ms-excel;charset=utf-8");
                    response.setHeader("Content-Disposition",
                            "attachment;filename="" + new String(filename.getBytes("gb2312"), "ISO8859-1"));  //文件名中文需进行格式转换，不然可能出现乱码
                    OutputStream out = response.getOutputStream();
                    wb.write(out);
                    out.close();
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

    }