springboot图片用二进制byte[]存放数据库，进行读取

灰太狼 2022-05-16 12:05 116阅读 0赞

@RequestMapping(value="/{id}",method=RequestMethod.GET)
        public void getPhotoById (@PathVariable("id")Integer id, final HttpServletResponse response) throws Exception{  
            CustomerPicture find = customerPictureService.find(id);
            byte[] data = find.getPicture();  
            response.setContentType("image/jpeg");  
            response.setCharacterEncoding("UTF-8");  
            OutputStream outputSream = response.getOutputStream();
            outputSream.write(data);
            outputSream.flush();
            /*InputStream in = new ByteArrayInputStream(data);  
            int len = 0;  
            byte[] buf = new byte[1024];  
            while ((len = in.read(buf, 0, 1024)) != -1) {  
                outputSream.write(buf, 0, len);  
            }  
            outputSream.close(); *|
        }

@PostMapping("/insertCheckingRecord")
        public Result<CustomerPicture> insert(@RequestParam(value = "file", required = true) MultipartFile file) throws Exception {
            Result<CustomerPicture> res = new Result<>();
            try {
            	CustomerPicture customerPicture = new CustomerPicture();
            	InputStream inputStream = file.getInputStream();
            	byte[] pictureData = new byte[(int) file.getSize()];
            	inputStream.read(pictureData);
            	customerPicture.setPicture(pictureData);
                CustomerPicture customerPicture1 = customerPictureService.insert(customerPicture);
                res.setStatus(StatusCode.SUCCESSFUL);
                res.setData(customerPicture1);
                res.setMessage(StatusCode.ADD_SUCCESSFUL_MSG);
            } catch (Exception e) {
                e.printStackTrace();
                res.setStatus(StatusCode.FAILED);
                res.setMessage(StatusCode.ADD_FAILED_MSG + e.getMessage());
            }
            return res;
        }

转载：[https://blog.csdn.net/jiawenlong\_/article/details/41553375][https_blog.csdn.net_jiawenlong_article_details_41553375]

[https_blog.csdn.net_jiawenlong_article_details_41553375]: https://blog.csdn.net/jiawenlong_/article/details/41553375