학원/JSP - 학원
게시판 1단계 4
수풀속의고라니
2022. 3. 28. 11:39
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list.jsp
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<%@page import="java.util.ArrayList"%>
<%@page import="magic.member.MemberBean"%>
<%@page import="magic.board.BoardDBBean"%>
<%@page import="magic.board.BoardBean"%>
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%
BoardDBBean bd = BoardDBBean.getInstance();
ArrayList<BoardBean> boardList = bd.listBoard();
int b_id = 0;
String b_name, b_email, b_title, b_content;
%>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here</title>
</head>
<body>
<center>
<h1>게시판에 등록된 글 목록 보기</h1>
<table width="600">
<tr>
<td align="right">
<a href="write.jsp">글쓰기</a>
</td>
</tr>
</table>
</center>
<center>
<table border="1" width="800" cellspacing="0">
<tr height="25">
<td width="40" align="center">번호</td>
<td width="450" align="center">글제목</td>
<td width="120" align="center">작성자</td>
</tr>
<%
for(int i=0;i<boardList.size();i++){
BoardBean board = boardList.get(i);
b_id = board.getB_id();
b_name = board.getB_name();
b_email = board.getB_email();
b_title = board.getB_title();
b_content = board.getB_content();
%>
<tr height="25" bgcolor="#f7f7f7"
onmouseover="this.style.backgroundColor='#eeeeef'"
onmouseout="this.style.backgroundColor='#f7f7f7'">
<td align="center"><%= b_id%></td>
<td><a href="show.jsp?b_id=<%= b_id%>"><%= b_title %></a></td>
<!--이동할 때 글번호 가져가는 방법 -->
<td align="center">
<a href="mailto:<%=b_email %>">
<%= b_name %>
</a>
</td>
</tr>
<%
}
%>
</table>
</center>
</body>
</html>
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cs |
show.jsp로 넘어갈 때 ?다음에 있는 b_id라는 이름에 b_id값을 담아서 넘어가도록 설정
show.jsp
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<%@page import="magic.board.BoardDBBean"%>
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<jsp:useBean id="board" class="magic.board.BoardBean"></jsp:useBean>
<jsp:setProperty property="*" name="board"/>
<%
int id = Integer.parseInt(request.getParameter("b_id"));
BoardDBBean db = BoardDBBean.getInstance();
board = db.getBoard(id);
%>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here</title>
</head>
<body>
<center>
<table border="1" cellspacing="0">
<h1>글 내 용 보 기</h1>
<form>
<tr align="center">
<td width="160">글번호</td>
<td width="400"><%= board.getB_id() %></td>
</tr>
<tr align="center">
<td width="160">작성자</td>
<td width="400"><%= board.getB_name() %></td>
</tr>
<tr>
<td width="160" align="center">글제목</td>
<td align="left" width="400"><%= board.getB_title() %></td>
</tr>
<tr>
<td width="160" align="center">글내용</td>
<td align="left" width="400"><%= board.getB_content() %></td>
</tr>
</form>
</table>
</center>
</body>
</html>
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cs |
BoardDBBean.java
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package magic.board;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.ArrayList;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.sql.DataSource;
import magic.member.MemberBean;
public class BoardDBBean {
private static BoardDBBean instance = new BoardDBBean();
public static BoardDBBean getInstance() {
return instance;
}
public Connection getConnection() throws Exception {
Context ctx = new InitialContext();
DataSource ds = (DataSource)ctx.lookup("java:comp/env/jdbc/oracle");
return ds.getConnection();
}
public int insertBoard(BoardBean board) {
Connection con = null;
PreparedStatement ps = null;
ResultSet rs = null;
String sql="";
int re = -1;
int number;
try {
con = getConnection();
sql = "select max(b_id) from boardT";
ps = con.prepareStatement(sql);
rs = ps.executeQuery();
if(rs.next()) {
number = rs.getInt(1)+1;
}else {
number=1;
}
sql = "insert into boardT (b_id,b_name,b_email,b_title,b_content) values(?,?,?,?,?)";
ps = con.prepareStatement(sql);
ps.setInt(1, number);
ps.setString(2, board.getB_name());
ps.setString(3, board.getB_email());
ps.setString(4, board.getB_title());
ps.setString(5, board.getB_content());
ps.executeUpdate();
re = 1;
ps.close();
con.close();
System.out.println("추가 성공");
} catch (Exception e) {
System.out.println("추가 실패");
e.printStackTrace();
}finally {
try {
if (ps != null) ps.close();
if (con != null) con.close();
} catch (Exception e2) {
e2.printStackTrace();
}
}
return re;
}
public ArrayList<BoardBean> listBoard(){
ArrayList<BoardBean> boardList = new ArrayList<BoardBean>();
Connection con = null;
Statement st = null;
ResultSet rs = null;;
String sql = "select * from boardt order by b_id";
try {
con = getConnection();
st = con.createStatement();
rs = st.executeQuery(sql);
while (rs.next()) {
BoardBean board = new BoardBean();
board.setB_id(rs.getInt("b_id"));
board.setB_name(rs.getString("b_name"));
board.setB_email(rs.getString("b_email"));
board.setB_title(rs.getString("b_title"));
board.setB_content(rs.getString("b_content"));
boardList.add(board);
}
rs.close();
st.close();
con.close();
} catch (Exception e) {
e.printStackTrace();
}finally {
try {
if(rs != null) rs.close();
if(st != null) st.close();
if(con != null) con.close();
} catch (Exception e2) {
e2.printStackTrace();
}
}
return boardList;
}
public BoardBean getBoard(int id) {
Connection con = null;
PreparedStatement ps = null;
ResultSet rs = null;
BoardBean board = new BoardBean();
String sql = "select * from boardT where b_id=?";
try {
con = getConnection();
ps = con.prepareStatement(sql);
ps.setInt(1, id);
rs = ps.executeQuery();
if (rs.next()) {
board.setB_id(rs.getInt("b_id"));
board.setB_name(rs.getString("b_name"));
board.setB_email(rs.getString("b_email"));
board.setB_title(rs.getString("b_title"));
board.setB_content(rs.getString("b_content"));
}
rs.close();
ps.close();
con.close();
} catch (Exception e) {
e.printStackTrace();
}
return board;
}
}
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cs |
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