프로젝트 구조 : 게시글 수정폼 페이지인 boardModifyForm.jsp와 수정하는 boardModifyAction.jsp 추가



0_2강좌의 boardView.jsp파일 43번째 라인에 글을 수정할 수 있는 링크 추가

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<div>
    <a href="<%=request.getContextPath()%>/board/boardModifyForm.jsp?boardNo=<%=boardNo%>">수정</a>
    <a href="<%=request.getContextPath()%>/board/boardRemoveForm.jsp?boardNo=<%=boardNo%>">삭제</a>
</div>
cs



boardModifyForm.jsp

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<%@ page language="java" contentType="text/html; charset=EUC-KR" pageEncoding="EUC-KR"%>
<%@ page import="java.sql.*" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=EUC-KR">
<title>BOARD MODIFY FORM</title>
</head>
<body>
<h1>BOARD MODIFY</h1>
<%
if(request.getParameter("boardNo") == null) {
    response.sendRedirect(request.getContextPath()+"/board/boardList.jsp");
} else {
    int boardNo = Integer.parseInt(request.getParameter("boardNo"));
    System.out.println("boardModify param boardNo:"+boardNo);
    String boardTitle = "";
    String boardContent = "";
    
    String dbUrl = "jdbc:mysql://127.0.0.1:3306/injava?useUnicode=true&characterEncoding=euckr";
    String dbUser = "root";
    String dbPw = "java0000";
    Connection connection = null;
    PreparedStatement statement = null;
    ResultSet resultSet = null;
    try {
        Class.forName("com.mysql.jdbc.Driver");
        connection = DriverManager.getConnection(dbUrl, dbUser, dbPw);
        String selectSql = "SELECT board_title, board_content FROM board WHERE board_no=?";
        statement = connection.prepareStatement(selectSql);
        statement.setInt(1, boardNo);
        resultSet = statement.executeQuery();
        if(resultSet.next()) {
            boardTitle = resultSet.getString("board_title");
            boardContent = resultSet.getString("board_content");
        } else {
            response.sendRedirect(request.getContextPath()+"/board/boardList.jsp");
        }
    } catch (Exception e) {
        e.printStackTrace();
        out.print("BOARD MODIFY FROM ERROR!");
    } finally {
        try {resultSet.close();} catch(Exception e){}
        try {statement.close();} catch(Exception e){}
        try {connection.close();} catch(Exception e){}
    }
%>    
    <form action="<%=request.getContextPath()%>/board/boardModifyAction.jsp" method="post">
        <div>boardNo</div>
        <div><input name="boardNo" value="<%=boardNo%>" type="text" readonly="readonly"/></div>
        <div>비밀번호확인: </div>
        <div><input name="boardPw" id="boardPw" type="password"/></div>
        <div>boardTitle : </div>
        <div><input name="boardTitle" value="<%=boardTitle%>" id="boardTitle" type="text"/></div>
        <div>boardContent : </div>
        <div><textarea name="boardContent" id="boardContent" rows="5" cols="50"><%=boardContent%></textarea></div>
        <div>
            <input type="submit" value="글수정"/>
            <input type="reset" value="초기화"/>
        </div>
    </form>
<%
}    
%>
</body>
</html>
cs



boardModifyAction.jsp : 비밀번호가 일치하면 글 수정

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<%@ page language="java" contentType="text/html; charset=EUC-KR" pageEncoding="EUC-KR"%>
<%@ page import="java.sql.*" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=EUC-KR">
<title>BOARD MODIFY ACTION</title>
</head>
<body>
<%
request.setCharacterEncoding("euc-kr");
if(request.getParameter("boardNo") == null || request.getParameter("boardPw") == null) {
    response.sendRedirect(request.getContextPath()+"/board/boardList.jsp");
} else {
    int boardNo = Integer.parseInt(request.getParameter("boardNo"));
    System.out.println("boardModifyAction param boardNo :"+boardNo);
    String boardPw = request.getParameter("boardPw");
    System.out.println("boardModifyAction param boardPw :"+boardPw);
    String boardTitle = request.getParameter("boardTitle");
    System.out.println("boardModifyAction param boardTitle :"+boardTitle);
    String boardContent = request.getParameter("boardContent");
    System.out.println("boardModifyAction param boardContent :"+boardContent);
    
    String dbUrl = "jdbc:mysql://127.0.0.1:3306/injava?useUnicode=true&characterEncoding=euckr";
    String dbUser = "root";
    String dbPw = "java0000";
    Connection connection = null;
    PreparedStatement statement = null;
    try {
        Class.forName("com.mysql.jdbc.Driver");
        connection = DriverManager.getConnection(dbUrl, dbUser, dbPw);
        String selectSql = "UPDATE board SET board_title=?, board_content=? WHERE board_no=? AND board_pw=?";
        statement = connection.prepareStatement(selectSql);
        statement.setString(1, boardTitle);
        statement.setString(2, boardContent);
        statement.setInt(3, boardNo);
        statement.setString(4, boardPw);
        statement.executeUpdate();
        response.sendRedirect(request.getContextPath()+"/board/boardView.jsp?boardNo="+boardNo);
    } catch(Exception e) {
        e.printStackTrace();
        out.print("BOARD MODIFY ERROR!");
    } finally {
        try {statement.close();} catch(Exception e){}
        try {connection.close();} catch(Exception e){}
    }
}
%>
</body>
</html>
cs



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