JAVA指定模板下載

後端代碼：

/**
 * 模板下載
 *
 * @param request
 * @param response
 * @throws IOException
 */
@ResponseBody
@RequestMapping("/download")
public void download(HttpServletRequest request,
                     HttpServletResponse response) throws IOException {

    OutputStream out = null;
    FileInputStream in = null;

    try {
        String fileName = "人員信息模板";
        // 讀取模板
        String excelPath = request.getSession().getServletContext()
                .getRealPath("/Excel/人員信息表.xlsx");

        fileName = URLEncoder.encode(fileName, "UTF-8");

        response.reset();
        // 追加時間
        response.addHeader("Content-Disposition", "attachment;filename="
                + fileName + ".xlsx");
        response.setContentType("application/octet-stream;charset=UTF-8");

        out = response.getOutputStream();
        in = new FileInputStream(excelPath);

        byte[] b = new byte[1024];
        int len;

        while ((len = in.read(b)) > 0) {
            response.getOutputStream().write(b, 0, len);
        }
        out.flush();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (null != in) {
            in.close();
            in = null;
        }
        if (null != out) {
            out.close();
            out = null;
        }
    }

}

前端代碼：

a class="btn btn-info" href="${basePath}/electricMerchant/download" id="download">模板下載</a>

模版文件放置位置如圖所示：