Java 使用blob對H5視頻播放進行加密《java視頻加密》

1.創建一個H5 <video>標簽

<video id="sound" type="video/mp4" controls="controls" autoplay="autoplay"
       webkit-playsinline="true"    playsinline="true"   heigth="100%"></video>

 

2.創建請求獲取視頻源，並將視頻源轉為blob對象

    //創建XMLHttpRequest對象
    var xhr = new XMLHttpRequest();
    //配置請求方式、請求地址以及是否同步
    xhr.open('POST', '/armystudy/blob/getVideoSrc', true);
    //設置請求結果類型為blob
    xhr.responseType = 'blob';
    //請求成功回調函數
    xhr.onload = function(e) {
        if (this.status == 200) {//請求成功
            //獲取blob對象
            var blob = this.response;
            //獲取blob對象地址，並把值賦給容器
            $("#sound").attr("src", URL.createObjectURL(blob));
        }
    };
    xhr.send();

 

3.Java后台將視頻轉為視頻源(本地視頻)

   @ResponseBody
    @RequestMapping("/getVideoSrc")
    public OutputStream getVideoSrc(HttpServletRequest httpServletRequest,
                                    HttpServletResponse httpServletResponse){
        //1.創建文件對象
        File f = new File("E:/test/1.mp4");
        //2.獲取文件名稱
        String fileName = f.getName();
        //3.導出文件
        String agent = httpServletRequest.getHeader("User-Agent").toUpperCase();
        InputStream fis = null;
        OutputStream os = null;
        try {
            //4.獲取輸入流
            fis = new BufferedInputStream(new FileInputStream(f.getPath()));
            byte[] buffer;
            buffer = new byte[fis.available()];
            fis.read(buffer);
            httpServletResponse.reset();
            //5.由於火狐和其他瀏覽器顯示名稱的方式不相同，需要進行不同的編碼處理
            if(agent.indexOf("FIREFOX") != -1){//火狐瀏覽器
                httpServletResponse.addHeader("Content-Disposition", "attachment;filename="+ new String(fileName.getBytes("GB2312"),"ISO-8859-1"));
            }else{//其他瀏覽器
                httpServletResponse.addHeader("Content-Disposition", "attachment;filename="+ URLEncoder.encode(fileName, "UTF-8"));
            }
            //6.設置response編碼
            httpServletResponse.setCharacterEncoding("UTF-8");
            httpServletResponse.addHeader("Content-Length", "" + f.length());
            //設置輸出文件類型
            httpServletResponse.setContentType("video/mpeg4");
            //7.獲取response輸出流
            os = httpServletResponse.getOutputStream();
            os.flush();
            //8.輸出文件
            os.write(buffer);
        }catch(Exception e){
            System.out.println(e.getMessage());
        } finally{
            //關閉流
            try {
                if(fis != null){ fis.close(); }

                if(os != null){ os.flush(); }

                if(os != null){os.close(); }

            } catch (IOException e) {
                System.out.println(e.getMessage());
            }
        }

        return os;
    }

 4.Java后台將視頻轉為視頻源(網絡視頻)

@RequestMapping("/getVideoBlob_V2")
    public OutputStream getVideoBlob_V2(HttpServletRequest httpServletRequest,
                                        HttpServletResponse httpServletResponse) {

        String httpUrl = "http://alivideo.g2s.cn/zhs_yanfa_150820/ablecommons/demo/201802/6b79b99f40b14722af5cc90eeb517af6.mp4";
        // 1.下載網絡文件
        URL url = null;
        try {
            url = new URL(httpUrl);
        } catch (MalformedURLException e1) {
            e1.printStackTrace();
        }

        InputStream inStream = null;
        OutputStream outputStream = null;
        try {

            //2.獲取鏈接
            URLConnection conn = url.openConnection();
            //3.輸入流
            inStream = conn.getInputStream();
            httpServletResponse.reset();
            httpServletResponse.addHeader("Content-Disposition", "attachment;filename=" + httpUrl);
            //6.設置response編碼
            httpServletResponse.setCharacterEncoding("UTF-8");
            httpServletResponse.addHeader("Content-Length", "" + 47514017);

            //設置輸出文件類型
            httpServletResponse.setContentType("video/mpeg4");
            //7.獲取response輸出流
            outputStream = httpServletResponse.getOutputStream();
            int byteRead;
            while ((byteRead = inStream.read()) != -1) {
                outputStream.write(byteRead);
            }
            
        } catch (IOException e) {
            e.printStackTrace();
            System.out.println(e);
        } finally {

            try {
                inStream.close();
                outputStream.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        return outputStream;
    }