springboot中下载模板功能

前台：

<button type="button" onclick="downloadMould()" style="float: right;margin-right: 20px;" class="btn btn-info">模板下载</button>

js：

function downloadMould(){
	alert("下载模板");
	window.open( "./addRepairDevice/downloadExcel");//跳转后台的路径
}

后台方法：

@RequestMapping(value = "/downloadExcel")
	@ResponseBody
	public void downloadExcel(HttpServletResponse res, HttpServletRequest req) throws Exception {
	   String fileName = "repairDeviceModel.xls";
	ServletOutputStream out;
	res.setContentType("multipart/form-data");
	res.setCharacterEncoding("UTF-8");
	res.setContentType("text/html");
	String filePath = getClass().getResource("/static/doc/" + fileName).getPath();//文件在项目中的存放路径
	String userAgent = req.getHeader("User-Agent");
	if (userAgent.contains("MSIE") || userAgent.contains("Trident")) {
	fileName = java.net.URLEncoder.encode(fileName, "UTF-8");
	} else {
	// 非IE浏览器的处理：
		fileName = new String((fileName).getBytes("UTF-8"), "ISO-8859-1");
	}
	filePath = URLDecoder.decode(filePath, "UTF-8");
	res.setHeader("Content-Disposition", "attachment;fileName=" + fileName);
	FileInputStream inputStream = new FileInputStream(filePath);
	out = res.getOutputStream();
	int b = 0;
	byte[] buffer = new byte[1024];
	while ((b = inputStream.read(buffer)) != -1) {
	// 4.写到输出流(out)中
	out.write(buffer, 0, b);
	}
	inputStream.close();

	if (out != null) {
	out.flush();
	out.close();
	}

	}