base64传输视频

视频前缀

data:video/mp4;base64,

图片前缀

data:image/jpeg;base64,

图片

 <img src="">

H5视频

<video controls muted webkit-playsinline="true" playsinline="true" poster="" src="">

后台

@Controller
@RequestMapping("/imgInfo")
public class ImgInfoController extends BaseController {
    @Resource
    private ImgInfoService imgInfoService;

    @RequestMapping("/add")
    public void add(@RequestParam("img") MultipartFile file, @RequestParam("id") Double id) throws IOException {
        if (id == null || file == null) {
            return;
        }
        Imginfo imginfo = new Imginfo();
        imginfo.setId(id);
        InputStream in = file.getInputStream();
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        byte[] buff = new byte[1024];
        int rc;
        while ((rc = in.read(buff)) != -1) {
            out.write(buff, 0, rc);
        }
        byte[] img = out.toByteArray();
        imginfo.setImg(img);

        imgInfoService.add(imginfo);
        logger.info("=====================end");
    }

    @ResponseBody
    @RequestMapping("/getById")
    public void getById(Double id) throws IOException {
        if (id == null) {
            return;
        }
        Imginfo imginfo = imgInfoService.getById(id);
        if (imginfo == null){
            return;
        }

//        DataOutputStream out =
//                new DataOutputStream(new FileOutputStream("C:\\Users\\KRIC\\Desktop\\"+id+".jpg"));
//
////得到图片二进制流，给输入流
//        InputStream is = new ByteArrayInputStream(imginfo.getImg());
//        byte[] buff = new byte[1024];
//
//        int len = 0;
//        while((len=is.read(buff))!=-1){
//            out.write(buff, 0, len);
//        }
////将流和buffer关闭
//        is.close();
//        out.flush();
//        out.close();
//        BASE64Encoder encoder = new BASE64Encoder();
//        String imgStr = encoder.encode(imginfo.getImg());
//        JSONObject json =new JSONObject();
//        String imgStr = Base64.getEncoder().encodeToString(imginfo.getImg());
//        String type = "data:image/jpeg;base64,";
//        imginfo.setBase64(type+imgStr);
//        json.put("aa",imginfo);
        String rtnStr = JSON.toJSONString(imginfo);
        toClient(rtnStr);
    }


}

public class Imginfo {
    private Double id;

    private byte[] img;


    public Double getId() {
        return id;
    }

    public void setId(Double id) {
        this.id = id;
    }

    public byte[] getImg() {
        return img;
    }

    public void setImg(byte[] img) {
        this.img = img;
    }

}