输出Excel文件

　　/**
     *
     * 功能描述: <br>
     * 〈功能详细描述〉输出excle
     *
     * @param titles 标题
     * @param contents 内容
     * @param fileName 文件名
     * @param response
     */
    protected void createExcle(List<Object> titles, List<List<Object>> contents, String fileName,
            HttpServletResponse response) {
 
        response.setContentType("application/msword;charset=UTF-8");
        response.setHeader("Content-disposition", "attachment;filename=" + fileName);
        response.addHeader("Pragma", "no-cache");
        response.addHeader("Cache-Control", "no-cache");
        response.addDateHeader("Expries", 0);
        ExcelWriter excelWriter = null;
        OutputStream os = null;
        try {
 
            excelWriter = new ExcelWriter(null, ExcelType.XLSX);
            excelWriter.createSheet("sheet");
            excelWriter.addRow("sheet", 1, titles);// 标题
            for (int i = 0; i < contents.size(); i++) {// 内容
                excelWriter.addRow("sheet", i + 2, contents.get(i));
            }
            os = response.getOutputStream();
            excelWriter.flush(os);
        } catch (IOException e) {
        } finally {
            if (os != null) {
                try {
                    os.close();
                } catch (IOException e) {
                }
            }
        }
    }