如何使用Spring MVC将图像上传到webapp / resources / images /目录？

Question

i have upload image that is saved in a local fold in c:/temp i want to save it to classpath of project :webapp/resources/images/ my controller class is :

@Controller
public class AdminCtrl {

private static String UPLOAD_LOCATION = "C:/temp/";
@Autowired
FileValidator fileValidator;

@InitBinder("fileBucket")
protected void initBinderFileBucket(WebDataBinder binder) {
    binder.setValidator(fileValidator);
}
//--------------------------POST IMAGE -------------------------------------   -----------------------------

 @RequestMapping(value = "/administration/parametres/profile", method = RequestMethod.POST)
public String profilePage(@Valid FileBucket fileBucket,
        BindingResult result, ModelMap model) throws IOException {
    if (result.hasErrors()) {
        System.out.println("validation errors");
        return "redirect:/administration/parametres/profile?error";
    } else {
        System.out.println("Fetching file");
        MultipartFile multipartFile = fileBucket.getFile();
         Now do something with file...
        FileCopyUtils.copy(fileBucket.getFile().getBytes(), new File(UPLOAD_LOCATION + fileBucket.getFile().getOriginalFilename()));
        String fileName = multipartFile.getOriginalFilename();
        model.addAttribute("fileName", fileName);
        return "redirect:/administration/parametres/profile?success";
    }
}

Answer 1

It is not possible to write or save anything to the classpath. The classpath is just a string with jars and paths, separated by semikolon.

Depending on where your app is started, the classpath looks different. If you run it from a war, there will be only jars in the classpath.

What you can do, is save the file to a well known location eg from the user.home directory. When you need to read it, you can pick it up from there.