Java Spring Boot upload file and preview file address resolution

    @RequestMapping (value = "/upload", method = requestmethod.post)    @Permission (Isajax=false)      Public String Upload (httpservletrequest request, httpservletresponse response, @RequestParam ("Files") multipartfile[] files) {
      List<string> fileurl=new arraylist<string> ();
      try  {

 if (files.length>0 ) { String uploaddir= "d:/upload/2017-12-18/" ;            File dir=new  file (uploaddir); if (!             Dir.exists ()) {dir.mkdirs (); } for  (Multipartfile file:files) {if (!  File.isempty ()) {String suffix=file.getoriginalfilename (). substring (File.getoriginalfilename (). LastIndexOf ("." )); String Filename=string.format ("%s%s" , Uuid.randomuuid (). toString (), suffix); File Fileinfo=new file (String.Format ("%s%s" , Uploaddir,filename)); Fileutils.writebytearraytofile (FileInfo, File.getbytes ()); String Url=string.format ("/2017-12-18/%s" , filename); Fileurl.add (URL);}} } 
//           fileurl picture Address List 

        Catch

        
    }

Here is the resolution method for the image preview address

@Controller Public classHomeController {Private FinalResourceloader Resourceloader; @Autowired PublicHomeController (Resourceloader resourceloader) { This. Resourceloader =Resourceloader; } @RequestMapping (Method= Requestmethod.get, value = "/{yyyy}-{mm}-{dd}/{filename:.+}") @ResponseBody PublicResponseentity<?>getFile (@PathVariable string yyyy, @PathVariable string MM, @PathVariable string dd, @PathVariable string filename) { Try {            returnResponseentity.ok (Resourceloader.getresource ("File:" + paths.get ("d:/upload/" + yyyy+ "-" +mm+ "-" +DD + "/", filename). toString ()); } Catch(Exception e) {returnResponseentity.notfound (). build (); }    }}

To access the image address: http://localhost:8080/2017-12-18/956f293b-876e-4347-9fae-29ac290f357b.jpg

Direct access to the jar package, uploaded files, pictures

Java Spring Boot upload file and preview file address resolution