게시판 Front-Controller command방식 조회수 추가

<BoardFrontController.java>

package kr.board.frontcontroller;

import java.io.IOException;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import kr.board.controller.BoardContentController;
import kr.board.controller.BoardDeleteController;
import kr.board.controller.BoardFormController;
import kr.board.controller.BoardInsertController;
import kr.board.controller.BoardListController;
import kr.board.controller.BoardUpdateController;
import kr.board.controller.BoardUpdateFormController;
import kr.board.controller.Controller;

@WebServlet("*.do")
public class BoardFrontController extends HttpServlet {
	protected void service(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		// 1. command구하기
		String reqUrl = request.getRequestURI();
		String ctx = request.getContextPath();
		String command = reqUrl.substring(ctx.length());

		// 2. command에 따른 분기 작업(if~else)
		Controller controller = null;
		String view = null;
		// HandlerMapping
		HandlerMapping mappings=new HandlerMapping();
		controller=mappings.getController(command);
		view=controller.execute(request, response);
		
		// 3. View의 경로를 보고 forward or redirect 결정
		if (view != null) {
			if (view.indexOf("redirect:/") != -1) {
				response.sendRedirect(view.split(":/")[1]); // redirect:/boardList.do
			} else {
				RequestDispatcher rd = request.getRequestDispatcher(ViewResolver.makeView(view));
				rd.forward(request, response);
			}
		}
	}
}

<HandlerMapping.java>

package kr.board.frontcontroller;


import java.util.HashMap;

import kr.board.controller.BoardContentController;
import kr.board.controller.BoardDeleteController;
import kr.board.controller.BoardFormController;
import kr.board.controller.BoardInsertController;
import kr.board.controller.BoardListController;
import kr.board.controller.BoardUpdateController;
import kr.board.controller.BoardUpdateFormController;
import kr.board.controller.Controller;

public class HandlerMapping {
	private HashMap<String, Controller> mappings;
	
	public HandlerMapping() {
		mappings=new HashMap<String, Controller>();
		mappings.put("/boardList.do", new BoardListController());
		mappings.put("/boardInsert.do", new BoardInsertController());
		mappings.put("/boardForm.do", new BoardFormController());
		mappings.put("/boardDelete.do", new BoardDeleteController());
		mappings.put("/boardUpdateForm.do", new BoardUpdateFormController());
		mappings.put("/boardUpdate.do", new BoardUpdateController());
		mappings.put("/boardContent.do", new BoardContentController());
		
	}
	public Controller getController(String command) {
		return mappings.get(command);
	}
}

<ViewResolver.java>

package kr.board.frontcontroller;

public class ViewResolver {
	// viewname -> WEB-INF/board/viewname.jsp
	public static String makeView(String viewname) {
		return "/WEB-INF/board/"+viewname+".jsp";
	}
}

<boardList.jsp>

<%@page import="kr.board.domain.Board"%>
<%@page import="java.util.List"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html lang="en">
<head>
  <title>Bootstrap Example</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"></script>
</head>
<body>

<div class="container">
  <jsp:include page = "header.jsp"/>
  <h2>MVC Framework03</h2>
  <div class="panel panel-default">
    <div class="panel-heading">BOARD</div>
    <div class="panel-body">
     <table class="table table-bordered">
     	<tr>
     		<td>번호</td>
     		<td>제목</td>
     		<td>작성자</td>
     		<td>작성일</td>
     		<td>조회수</td>
     	</tr>
    
     	<c:forEach var="vo" items="${list}">
     	<tr>
     	<td>${vo.idx}</td>
     	<td><a href="boardContent.do?idx=${vo.idx}">${vo.title}</a></td>
     	<td>${vo.writer}</td>
     	<td>${vo.indate}</td>
     	<td>${vo.count}</td>
     	</tr>
     	</c:forEach>
     </table>
    <!--똑같음 : <button class="btn btn-success btn-sm">글쓰기</button>  -->
   <a href="boardForm.do" class="btn btn-success btn-sm">글쓰기</a>
    </div>
    <div class="panel-footer">지능형 IoT_최지연</div>
  </div>
</div>

</body>
</html>

<Board.java>

package kr.board.domain;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Board {
	private int idx;
	private String title;
	private String content;
	private String writer;
	private String indate;
	private int count;
	
}

<Controller.java - interface>

package kr.board.controller;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public interface Controller {
	public String execute(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException;
	

}

<BoardContentController.java>

package kr.board.controller;

import java.io.IOException;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import kr.board.dao.BoardDAO;
import kr.board.domain.Board;

public class BoardContentController implements Controller {
	public String execute(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// ?idx=10
		int idx = Integer.parseInt(request.getParameter("idx")); // "10" -> 10
		BoardDAO dao = new BoardDAO();
		Board vo = dao.boardContent(idx);
		
		dao.boardCount(idx); // 조회수 증가
		
		request.setAttribute("vo", vo);
		return "boardContent";
	
	}

}

<BoardDeleteController.java>

package kr.board.controller;

import java.io.IOException;


import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import kr.board.dao.BoardDAO;

public class BoardDeleteController implements Controller {
	public String execute(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// ?idx=10
		int idx = Integer.parseInt(request.getParameter("idx"));
		
		BoardDAO dao = new BoardDAO();
		
		dao.boardDelete(idx);
		
		return "redirect:/boardList.do"; //redirect	
	}
}

<BoardFormController.java>

package kr.board.controller;

import java.io.IOException;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


public class BoardFormController implements Controller {
	public String execute(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		return "boardForm";	
	}
}

<BoardInsertController.java>

package kr.board.controller;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import kr.board.dao.BoardDAO;
import kr.board.domain.Board;



public class BoardInsertController implements Controller {
	public String execute(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		request.setCharacterEncoding("UTF-8");
		// 파라메터수집(VO)
		String title = request.getParameter("title");
		String content = request.getParameter("content");
		String writer = request.getParameter("writer");
		
		Board vo = new Board();
		vo.setTitle(title);
		vo.setContent(content);
		vo.setWriter(writer);
		
		BoardDAO dao = new BoardDAO();
		dao.boardInsert(vo); //등록
		// 등록후에는 다시 리스트페이지로 ... boardList.do
		return "redirect:/boardList.do";	
	}
}

<BoardListController.java>

package kr.board.controller;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import kr.board.dao.BoardDAO;
import kr.board.domain.Board;

public class BoardListController implements Controller{
	public String execute(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		// Model과 연동하기
		BoardDAO dao = new BoardDAO();
		List<Board> list = dao.getAllList();
		
		// 객체바인딩(*****)
		request.setAttribute("list", list);
		
		// boardList.jsp
		return "boardList";
		
	}

}

<BoardUpdateController.java>

package kr.board.controller;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import kr.board.dao.BoardDAO;
import kr.board.domain.Board;

public class BoardUpdateController implements Controller{
	public String execute(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		request.setCharacterEncoding("UTF-8");
		
		String title = request.getParameter("title");
		String content = request.getParameter("content");
		int idx = Integer.parseInt(request.getParameter("idx"));
		
		Board vo = new Board();
		vo.setTitle(title);
		vo.setContent(content);
		vo.setIdx(idx);
		
		BoardDAO dao = new BoardDAO();
		dao.boardUpdate(vo); //등록
		
		return "redirect:/boardList.do";
		
	}

}

<BoardUpdateFormController.java>

package kr.board.controller;

import java.io.IOException;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import kr.board.dao.BoardDAO;
import kr.board.domain.Board;

public class BoardUpdateFormController implements Controller {
	public String execute(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		int idx = Integer.parseInt(request.getParameter("idx")); 
		
		BoardDAO dao = new BoardDAO();
		dao.boardContent(idx);
		
		Board vo = dao.boardContent(idx);
		request.setAttribute("vo", vo);
		
		return "boardUpdate"; //foward
	}

}

'Maven Project' 카테고리의 다른 글

관리자용 게시판 관리 (0)	2022.06.01
HandlerMapping (0)	2022.05.31
게시판 FrontController-command 방식 (0)	2022.05.30
FrontController-command 방식 (0)	2022.05.30
MVC Framework 게시판 (0)	2022.05.27

'Maven Project' 카테고리의 다른 글

티스토리툴바