图片上传代码

public static String imageUpdate(MultipartFile multfile, HttpServletRequest request,String pathName){ ???????if (!multfile.isEmpty()) { ???????????CommonsMultipartFile commonsmultipartfile = (CommonsMultipartFile) multfile; ???????????DiskFileItem diskFileItem = (DiskFileItem) commonsmultipartfile.getFileItem(); ???????????File file = diskFileItem.getStoreLocation(); ???????????String fileName = System.nanoTime() + multfile.getOriginalFilename(); ???????????String path = Global.getUserfilesBaseDir() + "/userfiles/"+pathName+"/"; ???????????try{ ???????????????File newFile = new File(path); ???????????????if (!newFile.exists()) { ???????????????????newFile.mkdirs(); ???????????????} ???????????????newFile=new File(path+fileName); ???????????????newFile.createNewFile(); ???????????????OutputStream os = null; ???????????????byte[] bs = new byte[1024]; ???????????????int len; ???????????????if (!file.exists()) { ???????????????????file.mkdirs(); ???????????????} ???????????????InputStream in = null; ???????????????try { ???????????????????in = new FileInputStream(file); ???????????????} catch (FileNotFoundException e) { ???????????????????e.printStackTrace(); ???????????????} ???????????????os = new FileOutputStream(newFile); ???????????????while ((len = in.read(bs)) != -1) { ???????????????????os.write(bs, 0, len); ???????????????} ???????????????file.delete(); ???????????????os.close(); ???????????????in.close(); ???????????}catch (Exception e){ ???????????????e.printStackTrace(); ???????????????return ""; ???????????} ???????????String url = "http://" + request.getServerName() //服务器地址 ???????????????????+ ":" ???????????????????+ request.getServerPort() ??????????//端口号 ???????????????????+ "/userfiles/" + pathName + "/";//项目名称 ???????????return url+fileName; ???????} ???????return ""; ???}