@RequestMapping(value = "/download", method = RequestMethod.GET)
public ResponseEntity downloadFile(@RequestParam("filename") String filename) {
Document document = documentService.findDocumentByName(filename);
// No file found based on the supplied filename
if (document == null) {
return new ResponseEntity<>("{}", HttpStatus.NOT_FOUND);
}
// Generate the http headers with the file properties
HttpHeaders headers = new HttpHeaders();
headers.add("content-disposition", "attachment; filename=" + document.getName());
// Split the mimeType into primary and sub types
String primaryType, subType;
try {
primaryType = document.getMimeType().split("/")[0];
subType = document.getMimeType().split("/")[1];
} catch (IndexOutOfBoundsException | NullPointerException ex) {
return new ResponseEntity<>("{}", HttpStatus.INTERNAL_SERVER_ERROR);
}
headers.setContentType(new MediaType(primaryType, subType));
return new ResponseEntity<>(document.getContent(), headers, HttpStatus.OK);
}
@RequestMapping(
value = "/documents",
method = RequestMethod.GET,
produces = MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<List<Document>> listAllUsers() {
List<Document> documents = documentService.findAll();
if (documents.isEmpty()) {
// You many decide to return HttpStatus.NOT_FOUND
return new ResponseEntity<List<Document>>(HttpStatus.NO_CONTENT);
}
return new ResponseEntity<List<Document>>(documents, HttpStatus.OK);
}
@RequestMapping(value = "/savD", method = RequestMethod.POST)
public ResponseEntity<Void> saveFile(@RequestParam("file") MultipartFile file) {
if (!file.isEmpty()) {
try {
byte[] bytes = file.getBytes();
Document document = new Document();
document.setName(file.getOriginalFilename());
document.setContent(bytes);
documentService.save(document);
} catch (Exception e) {
}
} else {
}
HttpHeaders headers = new HttpHeaders();
return new ResponseEntity<Void>(headers, HttpStatus.CREATED);
}
@RequestMapping(value = "/upload", method = RequestMethod.POST)
public ResponseEntity uploadFile(MultipartHttpServletRequest request) {
try {
Iterator<String> itr = request.getFileNames();
while (itr.hasNext()) {
String uploadedFile = itr.next();
MultipartFile file = request.getFile(uploadedFile);
String mimeType = file.getContentType();
String filename = file.getOriginalFilename();
byte[] bytes = file.getBytes();
Document document = new Document();
document.setContent(bytes);
document.setName(filename);
document.setMimeType(mimeType);
documentService.save(document);
}
} catch (Exception e) {
return new ResponseEntity<>("{}", HttpStatus.INTERNAL_SERVER_ERROR);
}
return new ResponseEntity<>("{}", HttpStatus.OK);
}