本篇WEBAPP教程将为大家讲解WEBAPP编程的知识，看完这篇文章会让你对WEBAPP编程的知识有更加清晰的理解和运用。

    @RequestMapping("/act/worldcup_schedule_time/imgdownload")

    @ResponseBody

    public String scheduleDownload(HttpServletRequest request, HttpServletResponse response, HttpSession session) {

        response.setCharacterEncoding("UTF-8");

        String downLoadName = "worldcup.jpg";

        InputStream input = null;

        try {

            request.setCharacterEncoding("UTF-8");

            //获取文件的路径

//            String url = session.getServletContext().getRealPath("/") + "resources\\images\\act\\worldcup_merge\\worldcup720.png";

            String url = session.getServletContext().getRealPath("/") + "resources/images/act/worldcup_merge/worldcup720.png";

            System.out.println(url);

            File file = new File(url);

            input = FileUtils.openInputStream(file);

            byte[] data = IOUtils.toByteArray(input);

            //System.out.println("文件名:"+downLoadName);

            response.reset();

            //设置响应的报头信息(中文问题解决办法)

            response.setHeader("content-disposition", "attachment;fileName=" + URLEncoder.encode(downLoadName, "UTF-8"));

            response.addHeader("Content-Length", "" + data.length);

            response.setContentType("image/png; charset=UTF-8");

            IOUtils.write(data, response.getOutputStream());

        } catch (Exception e) {

            logger.error("下载图片出错");

            if (input != null) {

                IOUtils.closeQuietly(input);

            }

        }

        return null;

    }

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