Class CommentController

ch4/CommentController.java:16–103

//@Controller
//@ResponseBody
@RestController
public class CommentController {
    @Autowired
    CommentService service;

//    {
//        "pcno":0,
//            "comment" : "hihihi",
//            "commenter" : "asdf"
//    }
    // 댓글을 수정하는 메서드
    @PatchMapping("/comments/{cno}")   // /ch4/comments/26  PATCH
    public ResponseEntity<String> modify(@PathVariable Integer cno, @RequestBody CommentDto dto) {
//        String commenter = (String)session.getAttribute("id");
        String commenter = "asdf";
        dto.setCommenter(commenter);
        dto.setCno(cno);
        System.out.println("dto = " + dto);

        try {
            if(service.modify(dto)!=1)
                throw new Exception("Write failed.");

            return new ResponseEntity<>("MOD_OK", HttpStatus.OK);
        } catch (Exception e) {
            e.printStackTrace();
            return new ResponseEntity<String>("MOD_ERR", HttpStatus.BAD_REQUEST);
        }
    }

//    {
//        "pcno":0,
//            "comment" : "hi"
//    }
    // 댓글을 등록하는 메서드
    @PostMapping("/comments")   // /ch4/comments?bno=1085  POST
    public ResponseEntity<String> write(@RequestBody CommentDto dto, Integer bno, HttpSession session) {
//        String commenter = (String)session.getAttribute("id");
        String commenter = "asdf";
        dto.setCommenter(commenter);
        dto.setBno(bno);
        System.out.println("dto = " + dto);

        try {
            if(service.write(dto)!=1)
                throw new Exception("Write failed.");

            return new ResponseEntity<>("WRT_OK", HttpStatus.OK);
        } catch (Exception e) {
            e.printStackTrace();
            return new ResponseEntity<String>("WRT_ERR", HttpStatus.BAD_REQUEST);
        }
    }

    // 지정된 댓글을 삭제하는 메서드
    @DeleteMapping("/comments/{cno}")  // DELETE /comments/1?bno=1085  <-- 삭제할 댓글 번호
    public ResponseEntity<String> remove(@PathVariable Integer cno, Integer bno, HttpSession session) {
//        String commenter = (String)session.getAttribute("id");