задача 10(new)

src/main/java/ru/ulstu/paper/controller/PaperController.java

@@ -37,6 +37,11 @@ public class PaperController {
         return new Response<>(paperService.findAllDto());
     }
 
+    @GetMapping("/{paper-id}")
+    public Response<PaperDto> getPaper(@PathVariable("paper-id") Integer paperId){
+        return new Response(paperService.findPaper(paperId));
+    }
+
     @PostMapping
     public Response<Integer> createPaper(@RequestBody @Valid PaperDto paperDto) throws IOException {
         return new Response<>(paperService.create(paperDto));

src/main/java/ru/ulstu/paper/service/PaperService.java

@@ -130,6 +130,10 @@ public class PaperService {
         return convert(paperRepository.filter(userService.findById(filterDto.getAuthorId()), filterDto.getYear()), PaperDto::new);
     }
 
+    public PaperDto findPaper(int id){
+        return new PaperDto(paperRepository.getOne(id));
+    }
+
     public void closeFailedPapers() {
         List<Paper> papers = paperRepository.findAll()
                 .stream()