JAVA如何实现视频在线播放（MP4文件在线播放）-526互联

JAVA如何实现视频在线播放（MP4文件在线播放）

不需要web端进行操作，即可直接进行播放，话不多说，直接上代码！

Controller代码

/**
     * @description: MP4文件在线播放
     * @author: Re、ZOO2
     * @date: 2021/7/25 22:55
     * @param: [request, response, floderPath文件夹路径, fileName文件名称]
     * @return: com.lvmvp.configconsts.constant.ResultView
    **/
    @GetMapping(value = "/playMp4/{fileName}",produces ="application/json;charset=utf-8")
    public ResultView playMp4(HttpServletRequest request, HttpServletResponse response,
                              @PathVariable("fileName") String fileName){
        String floderPath = "D:/Desktop/";
        FileNormalOperationUtils.aloneVideoPlay(request,response,floderPath,fileName);
        return null;
    }

FileNormalOperationUtils工具类方法调用

/**
     * @description: 在线播放MP4文件
     * @author: Re、ZOO2
     * @date: 2021/7/25 22:50
     * @param: [request, floderPath 文件夹路径, fileName 文件名称, response]
     * @return: void
    **/
    public static void aloneVideoPlay(HttpServletRequest request, HttpServletResponse response,String floderPath, String fileName) {
        InputStream is = null;
        OutputStream os = null;
        try {
            response.setContentType("video/mp4");
            File file = new File(floderPath + fileName);
            response.addHeader("Content-Length", "" + file.length());
            is = new FileInputStream(file);
            os = response.getOutputStream();
            IOUtils.copy(is, os);
        } catch (Exception e) {
            log.error("播放MP4失败", e);
        } finally {
            if (null != os) {
                try {
                    os.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }