2020.10.12 게시판만들기 기본 : BoardService

 package service;

import java.util.List;

import java.util.Map;

import controller.Controller;

import util.ScanUtil;

import util.View;

import dao.BoardDao;

public class BoardService {

private BoardService(){} 

private static BoardService instance; 

public static BoardService getInstance(){ 

if(instance == null ) { 

instance = new BoardService(); 

}

return instance;

}

private BoardDao boardDao = BoardDao.getInstance();

public int boardList(){

List<Map<String, Object>> boardList = boardDao.selectBoardList(); 

System.out.println("========================================");

System.out.println("번호\t제목\t작성자\t작성일");

System.out.println("----------------------------------------");

for ( int i = 0 ; i < boardList.size() ; i++){ 

System.out.println(boardList.get(i).get("BOARD_NO") + "\t"

+ boardList.get(i).get("TITLE") + "\t"

+ boardList.get(i).get("USER_NAME") + "\t"

+ boardList.get(i).get("REG_DATE") ) ; 

}

System.out.println("============================================"); 

System.out.println("1.조회\t2.등록\t0.로그아웃"); 

System.out.println("입력>")

;

int input = ScanUtil.nextInt(); 

    switch ( input ){ 

    case 1 : //조회

    case 2 : //등록

    case 0 : 

    Controller.loginUser = null; 

    return View.HOME; 

    }

    return View.BOARD_LIST; 

}

}