业务需求：.net写的上位机传图片给javaweb的后台（http请求）
.net 解析图片成base64的数据，以json方式调用java的接口（key：图片名称（1.jap），vale：base64的图片数据）
@PostMapping("/uploadMore")//支持接收多个文件 public AjaxResult uploadMore(@RequestParam(required = false) File file ,@RequestParam(required = false)String msg, HttpServletRequest request) throws Exception { StringBuilder buffer = new StringBuilder(""); request.setCharacterEncoding("UTF-8"); BufferedReader reader=null; reader = new BufferedReader(new InputStreamReader(request.getInputStream())); String line=null; while((line = reader.readLine())!=null){ buffer.append(line); } //服务器路径 String path = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()+BoardConfig.getFileOneMapping(); String s = buffer.toString(); JSONObject jsonObject = JSONObject.parseObject(s); if(getKeyValue(jsonObject,path)){ return AjaxResult.success(); }else{ return AjaxResult.error(); } } private boolean getKeyValue(JSONObject jsonObject, String path) throws ParseException { List<ImageInfo> list = new ArrayList<>(); for(Map.Entry<String,Object> entry : jsonObject.entrySet()){ String key = entry.getKey(); Object value = entry.getValue(); //转图片 boolean b = base64ToFile(value.toString(),key); //解析图片名称 ImageInfo imageInfo = imageInfoService.analyzeImageName(key, path); list.add(imageInfo); } int i = imageInfoMapper.addImage(list); if(0==i){ return false; } return true; } private boolean base64ToFile(String base64, String fileName) { BufferedInputStream bis = null; BufferedOutputStream bos = null; String path = BoardConfig.getProfileOne()+ LocalDate.now()+"/"+fileName; File file = new File(path); if(!file.getParentFile().exists()){ file.getParentFile().mkdirs(); } try { //由于base64在传输过程中，+和/和=会被替换所以在解码前需要将base64还原成可用的base64 base64 = base64.replaceAll(" ","+"); base64 = base64.replaceAll("%2F","/"); base64 = base64.replaceAll("%3D","="); //当使用springMVC时无需使用以上方法进行还原 byte[] bytes = Base64.decodeBase64(base64.replace("\r\n", "")); bis = new BufferedInputStream(new ByteArrayInputStream(bytes)); bos = new BufferedOutputStream(new FileOutputStream(file)); byte[] bts = new byte[1024]; int len = -1; while((len = bis.read(bts)) != -1) { bos.write(bts,0,len); } return true; } catch (Exception e) { e.printStackTrace(); return false; } finally { if (bos != null) { try { bos.close(); } catch (IOException e) { e.printStackTrace(); } } if (bis != null) { try { bis.close(); } catch (IOException e) { e.printStackTrace(); } } } } public ImageInfo analyzeImageName(String fileName, String path) throws ParseException { ImageInfo imageInfo = new ImageInfo(); String[] str = fileName.split("_"); imageInfo.setImageName(fileName); imageInfo.setProduceId(str[0]); imageInfo.setWorkNum(str[1]); imageInfo.setStatusNum(str[2].substring(0,str[2].indexOf("."))); imageInfo.setUrl(path+LocalDate.now()+"/"+fileName); return imageInfo; }
