[BbsDAO.java]
1. getList() 메서드 작성
public ArrayList<Bbs> getList(int pageNumber) {
String SQL = "SELECT * FROM BBS WHERE bbsID < ? AND bbsAvailable = 1 ORDER BY bbsID DESC LIMIT 10";
ArrayList<Bbs> list = new ArrayList<Bbs>();
try {
PreparedStatement pstmt = conn.prepareStatement(SQL);
pstmt.setInt(1, getNext() - (pageNumber - 1) * 10);
rs = pstmt.executeQuery();
while (rs.next()) {
Bbs bbs = new Bbs();
bbs.setBbsID(rs.getInt(1));
bbs.setBbsTitle(rs.getString(2));
bbs.setUserID(rs.getString(3));
bbs.setBbsDate(rs.getString(4));
bbs.setBbsContent(rs.getString(5));
bbs.setBbsAvailable(rs.getInt(6));
list.add(bbs);
}
} catch (Exception e) {
e.printStackTrace();
}
return list;
}- nextPage() 메서드 작성
public boolean nextPage(int pageNumber) {
String SQL = "SELECT * FROM BBS WHERE bbsID < ? AND bbsAvailable = 1";
try {
PreparedStatement pstmt = conn.prepareStatement(SQL);
pstmt.setInt(1, getNext() - (pageNumber - 1) * 10);
rs = pstmt.executeQuery();
if (rs.next()) {
return true;
}
} catch (Exception e) {
e.printStackTrace();
}
return false;
}- 게시판 화면 구현
[bbs.jsp]
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ page import="bbs.BbsDAO" %>
<%@ page import="bbs.Bbs" %>
<%@ page import="java.util.ArrayList" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
<title>JSP 게시판 웹사이트</title>
<style type="text/css">
a, a:hover {
color: #000000;
text-decoration: none;
}
</style>
</head>
<body>
<%
String userID = null;
if(session.getAttribute("userID") != null) {
userID = (String) session.getAttribute("userID");
}
int pageNumber = 1; /* */
if (request.getParameter("pageNumber") != null) {
pageNumber = Integer.parseInt(request.getParameter("pageNumber"));
}
%>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="login.jsp">JSP 게시판</a>
<button class="navbar-toggler" type="button" data-toggle="collapse"
data-target="#navbarNav" aria-controls="navbarNav"
aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNav">
<ul class="navbar-nav">
<li class="nav-item active"> <!-- 여기안바꿈 -->
<a class="nav-link active" href="main.jsp">메인</a>
</li>
<li class="nav-item">
<a class="nav-link" href="bbs.jsp">게시판</a>
</li>
</ul>
<%
if(userID == null) {
%>
<ul class="navbar-nav">
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" role="button" data-bs-toggle="dropdown"
aria-expanded="false"> 접속하기 </a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="login.jsp">로그인</a>
<a class="dropdown-item" href="join.jsp">가입하기</a>
</div>
</li>
</ul>
<%
} else {
%>
<ul class="navbar-nav">
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" role="button" data-bs-toggle="dropdown"
aria-expanded="false"> 회원관리 </a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="logoutAction.jsp">로그아웃 </a>
</div>
</li>
</ul>
<%
}
%>
</div>
</nav>
<div class="container">
<div class="row">
<table class="table table-striped" style="text-align: center; border: 1px solid #dddddd">
<thead>
<tr>
<th style="background-color: #eeeeee; text-align: center;">번호</th>
<th style="background-color: #eeeeee; text-align: center;">제목</th>
<th style="background-color: #eeeeee; text-align: center;">작성자</th>
<th style="background-color: #eeeeee; text-align: center;">작성일</th>
</tr>
</thead>
<tbody>
<!-- -->
<%
BbsDAO bbsDAO = new BbsDAO();
ArrayList<Bbs> list = bbsDAO.getList(pageNumber);
for(int i=0; i<list.size(); i++) {
%>
<tr>
<td><%= list.get(i).getBbsID() %></td>
<td><a href="view.jsp?bbsID=<%= list.get(i).getBbsID() %>"><%= list.get(i).getBbsTitle() %></a></td>
<td><%= list.get(i).getUserID() %></td>
<td><%= list.get(i).getBbsDate().substring(0, 11) + list.get(i).getBbsDate().substring(11, 13) + "시" + list.get(i).getBbsDate().substring(14, 16) + "분" %></td>
</tr>
<%
}
%>
</tbody>
</table>
<!-- -->
<%
if(pageNumber != 1) {
%>
<a href="bbs.jsp?pageNumber=<%=pageNumber - 1%>" class="btn btn-success btn-arraw-left">이전</a>
<%
} if(bbsDAO.nextPage(pageNumber + 1)) {
%>
<a href="bbs.jsp?pageNumber=<%=pageNumber + 1%>" class="btn btn-success btn-arraw-left">다음</a>
<%
}
%>
</div>
<a href="write.jsp" class="btn btn-primary" >글쓰기</a>
</div>
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script>
</body>
</html>
코딩주니어