Java导出EXCEL 文本 表格

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导出表格controller

	@RequestMapping(value = "/downloadTemplate")
	public String downloadTemplate(HttpServletRequest request, HttpServletResponse response) throws IllegalArgumentException, IllegalAccessException, InvocationTargetException, IntrospectionException, IOException {
		//查询需要导出的数据
		String[] columnArr = {"*姓名", "*学号", "手机号", "身份证号", "性别"};
		//导出题目Excel创建HSSFWorkbook
		XSSFWorkbook wb = userBaseInfoFromExcelService.createTemplateHSSFWorkbook(columnArr);
		// 将文件保存到指定位置
		response.setContentType("APPLICATION/OCTET-STREAM");
		SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
		String titleStr = "模板" + dateFormat.format(new Date());
		String title = new String(titleStr.getBytes("gb2312"),"iso-8859-1");
		response.setHeader( "Content-Disposition" ,"attachment;filename=\"" + title + ".xlsx" + "\"" );
		OutputStream ouputStream = response.getOutputStream();
		wb.write(ouputStream);
		ouputStream.flush();
		ouputStream.close();
		return null;
	}

导出表格实现类

    @Override
    public XSSFWorkbook createTemplateHSSFWorkbook(String[] columnArr) throws IntrospectionException,
            IllegalArgumentException, IllegalAccessException,
            InvocationTargetException {
        // 第一步，创建一个webbook，对应一个Excel文件
        XSSFWorkbook wb = new XSSFWorkbook();
        // 第二步，在webbook中添加一个sheet,对应Excel文件中的sheet
        XSSFSheet sheet = wb.createSheet("模板");
        //设置cell格式为文本格式
        XSSFCellStyle cellStyle = wb.createCellStyle();
        XSSFDataFormat dataFormat = wb.createDataFormat();
        cellStyle.setDataFormat(dataFormat.getFormat("@"));
        // 设置列宽
        for (int i = 0,length = columnArr.length; i < length; i++) {
            sheet.setColumnWidth(i, 6000);
            //设置当前sheet格式为文本格式
            sheet.setDefaultColumnStyle(i,cellStyle);

        }

        // 设置字体大小
        XSSFFont font = wb.createFont();
        font.setFontHeightInPoints((short) 14);
        font.setBold(true);
        //font.setFontHeightInPoints((short) 12);

        // 第三步，在sheet中添加表头第0行,注意老版本poi对Excel的行数列数有限制short
        XSSFRow row = sheet.createRow((int) 0);
        row.setHeight((short) 400);
        // 第四步，创建单元格，并设置值表头 设置表头居中
        XSSFCellStyle style = wb.createCellStyle();
        // 设置字体样式
        style.setFont(font);
        // 设置表头居中
        style.setAlignment(XSSFCellStyle.ALIGN_CENTER); // 创建一个居中格式

        XSSFCell cell;
        for (int i = 0,length = columnArr.length; i < length; i++) {
            cell = row.createCell((short) i);
            cell.setCellValue(columnArr[i]);
            cell.setCellStyle(style);
        }
        return wb;
    }