ReplyController.java ( 200 , 400 번대 에러날 경우 : ResponseEntity 처리 ) > SPRING1

• 목록

package com.pkt.controller;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import org.springframework.http.HttpStatus;

import org.springframework.http.ResponseEntity;

import org.springframework.web.bind.annotation.PathVariable;

import org.springframework.web.bind.annotation.RequestBody;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

import org.springframework.web.bind.annotation.RestController;

import com.pkt.model.Criteria;

import com.pkt.model.PageMaker;

import com.pkt.model.ReplyVO;

import com.pkt.service.ReplyService;

import lombok.AllArgsConstructor;

import lombok.extern.log4j.Log4j;

@RestController

@Log4j

@RequestMapping("/replies/")

@AllArgsConstructor

public class ReplyController {

private ReplyService service;

//리턴 타입 ResponseEntity<String> entity 설계

//새로운 댓글을 등록 실패시 BAD_REQUEST(400)를 결과로 전송된다.

//JSON으로 전송된 데이터를 ReplyVO타입의 객체(vo)로 변환해주는 역할을 @RequestBody가 한다.

//글 등록

@RequestMapping(value = "", method = RequestMethod.POST)

public ResponseEntity<String> register(@RequestBody ReplyVO vo) {

log.info("reply insert...................");

ResponseEntity<String> entity = null;

try {

service.addReply(vo);

entity = new ResponseEntity<String>("success", HttpStatus.OK);

} catch (Exception e) {

e.printStackTrace();

entity = new ResponseEntity<String>(e.getMessage(), HttpStatus.BAD_REQUEST); //400에러

}

return entity;

}

//@RequestMapping()을 보면 URI 내의 경로에 {bno}를 활용한다.

//{bno}는 메소드의 파라미터에서 @PathVariable("bno")로 활용된다.

//메소드의 처리가 성공하는 경우 - HttpStatus.OK 헤더를 전송하고, 데이터를 같이 전송처리한다.

//글 목록

@RequestMapping(value = "/all/{bno}", method = RequestMethod.GET)

public ResponseEntity<List<ReplyVO>> list(@PathVariable("bno") Integer bno) {

// @PathVariable - URI 경로에서 원하는 데이터를 추출하는 용도로 사용

ResponseEntity<List<ReplyVO>> entity = null;

try {

entity = new ResponseEntity<>(service.listReply(bno), HttpStatus.OK);

} catch (Exception e) {

e.printStackTrace();

entity = new ResponseEntity<>(HttpStatus.BAD_REQUEST);

}

return entity;

}

//글 수정

@RequestMapping(value = "/{rno}", method = { RequestMethod.PUT, RequestMethod.PATCH })

public ResponseEntity<String> update(@PathVariable("rno") Integer rno, @RequestBody ReplyVO vo) {

ResponseEntity<String> entity = null;

try {

vo.setRno(rno);

service.modifyReply(vo);

entity = new ResponseEntity<String>("success", HttpStatus.OK);

} catch (Exception e) {

e.printStackTrace();

entity = new ResponseEntity<String>(e.getMessage(), HttpStatus.BAD_REQUEST);

}

return entity;

}

//글 삭제

@RequestMapping(value = "/{rno}", method = RequestMethod.DELETE)

public ResponseEntity<String> remove(@PathVariable("rno") Integer rno) {

ResponseEntity<String> entity = null;

try {

service.removeReply(rno);

entity = new ResponseEntity<String>("success", HttpStatus.OK);

} catch (Exception e) {

e.printStackTrace();

entity = new ResponseEntity<>(e.getMessage(), HttpStatus.BAD_REQUEST);

}

return entity;

}

// - /replies/게시물 번호/페이지 번호

//페이징 처리를 위해서는 PageMaker를 가져와야 한다.

//Ajax로 호출될 것이므로 Model 아닌 Map 타입의 객체를 생성 이용한다.

//페이징 처리

@RequestMapping(value = "/{bno}/{page}", method = RequestMethod.GET)

public ResponseEntity<Map<String, Object>> listPage(

@PathVariable("bno") Integer bno,

@PathVariable("page") Integer page) {

ResponseEntity<Map<String, Object>> entity = null;     

try {

Criteria cri = new Criteria();

cri.setPage(page);

PageMaker pageMaker = new PageMaker();

pageMaker.setCri(cri);

int replyCount = service.count(bno);

pageMaker.setTotalCount(replyCount);

List<ReplyVO> list = service.listReplyPage(bno, cri); 

Map<String, Object> map = new HashMap<String, Object>();

map.put("list", list);

map.put("pageMaker", pageMaker);

entity = new ResponseEntity<Map<String, Object>>(map, HttpStatus.OK);

} catch (Exception e) {

e.printStackTrace();

entity = new ResponseEntity<Map<String, Object>>(HttpStatus.BAD_REQUEST);

}

return entity;

}

}