23.03.16(Jsp)

MH S·2023년 3월 16일
0

Jsp

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5/16

과제

https://velog.io/@thalsghks/23.03.15Jsp-%EA%B3%BC%EC%A0%9C

<TeamMgr.java>
기존의 TeamMgr.java 에서 삭제 메소드 밑에 아래의 코드 붙이기

// 입력된 팀이름 리스트
	public Vector<String> teamList(){
		Connection con = null;
		PreparedStatement pstmt = null;
		ResultSet rs = null;
		String sql = null;
		Vector<String> vlist = new Vector<String>();
		try {
			con = pool.getConnection();
			sql = "select distinct team from tblTeam";
			pstmt = con.prepareStatement(sql);
			rs = pstmt.executeQuery();
			while(rs.next()) {
				vlist.addElement(rs.getString(1));
			}
			//System.out.println(vlist.size());
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			pool.freeConnection(con, pstmt, rs);
		}
		return vlist;
	}

<teamInsert.jsp>

<!-- ch09/teamInsert.jsp -->
<%@page import="java.util.Vector"%>
<%@page contentType="text/html; charset=UTF-8"%>
<jsp:useBean id="mgr" class="ch09.TeamMgr"/>
<%
	Vector<String> vlist = mgr.teamList();
%>
<html>
<head>
<meta charset="UTF-8">
<title>Team Mgr</title>
<link href="style.css" rel="stylesheet" type="text/css">
<script type="text/javascript">
	function check() {
		f= document.frm;
		if(f.name.value==""){
			alert("이름 입력하세요");
			f.name.focus();
			return; // 함수 빠져나옴
		}
		if(f.city.value==""){
			alert("사는곳 입력하세요");
			f.city.focus();
			return; // 함수 빠져나옴
		}
		if(f.age.value==""){
			alert("나이 입력하세요");
			f.age.focus();
			return; // 함수 빠져나옴
		}
		if(f.team.value==""){
			alert("팀 입력하세요");
			f.team.focus();
			return; // 함수 빠져나옴
		}
		f.submit(); // 제출
	}
	
	function check2() {
		document.frm.action = "teamInsertProc2.jsp";
		document.frm.submit();
	}
	function selectTeam(){
		// select의 name을 id로 변경
		teamselect = document.getElementById("teamselect");
		team = teamselect.options[teamselect.selectedIndex].value;
		//alert(team);
		document.frm.team.value = team;
	}
</script>
</head>
<body>
	<div align="center">
		<h1>Team Insert</h1>
		<form name="frm" method="post" action="teamInsertProc.jsp">
			<table border="1">
				<tr>
					<td width="50" align="center">이름</td>
					<td width="150"><input name="name" value="홍길동"></td>
				</tr>
				<tr>
					<td align="center">사는곳</td>
					<td><input name="city" value="부산"></td>
				</tr>
				<tr>
					<td align="center">나이</td>
					<td><input name="age" value="27"></td>
				</tr>
				<tr>
					<td align="center">팀명</td>
					<td>
					<input name="team" size="10">
					<select id="teamselect" onchange="selectTeam()">
						<%for(int i=0;i<vlist.size();i++){%>
							<option value="<%=vlist.get(i)%>"><%=vlist.get(i)%></option>
						<% }%>
						
					</select>
					</td>
				</tr>
				<tr>
					<td align="center" colspan="2"><input type="button"
						value="SAVE" onclick="check()"> <input type="button"
						value="SAVE2" onclick="check2()"></td>
				</tr>
			</table>
		</form><p>
		<a href="teamList.jsp">LIST</a>
	</div>
</body>
</html>

<결과>

<2번째 방법>

function selectTeam1(team){	
		document.frm.team.value = team;
}

<select id="teamselect" onchange="selectTeam1(this.value)">
		<%for(int i=0;i<vlist.size();i++){%>
			<option value="<%=vlist.get(i)%>"><%=vlist.get(i)%></option>
		<% }%>
						
</select>

위 함수와 태그를 넣고 실행해도 같은 결과를 볼 수 있음.


Team CRUD 예제 정리

1.JAVA

  • DBConnectionMgr.java
  • TeamBean.java
  • TeamMgr.java
  • MyUtil.java

2.JSP & html & css

  • teamInsert.jsp(html) : 저장양식
  • teamInsertProc.jsp : 저장처리
  • teamList.jsp : 팀리스트
  • teamRead.jsp : 한개의 team 정보
  • teamDelete.jsp : 삭제
  • teamUpdate.jsp : 수정양식
  • teamUpdateProc.jsp : 수정처리
  • style.css

Scope(session, 쿠키)

page 사용시 데이터가 고정
session 사용시 새로운 데이터가 계속 갱신됨

ScopeBean.java, scopeBaen.jsp, scopeBean2.jsp

<ScopeBean.java>

package ch09;

public class ScopeBean {
	private int num;

	public int getNum() {
		return num;
	}

	public void setNum(int num) {
		this.num = num;
	}
}

<scopeBean.jsp>

<!-- ch09/scopeBean.jsp -->
<%@page contentType="text/html; charset=UTF-8"%>
<jsp:useBean id="pBean" class="ch09.ScopeBean" scope="page"/>
<jsp:useBean id="sBean" class="ch09.ScopeBean" scope="session"/>
<!-- 
	scope 가 session 이면 id가 동일한 객체가 있는지 없는지 검색 
	-> 없으면 새롭게 생성
	-> 하지만 있으면 그 객체를 재사용 
	-> 그러나 세션이 종료 또는 제거가 되면 안에있는 객체도 같이 없어짐.
	-> scope="session" 밑에 코드가 많이 사용
-->
<% session.setAttribute("sBean",sBean); %>
<jsp:setProperty property="num" name="pBean"
value="<%=pBean.getNum()+10%>"/>
<jsp:setProperty property="num" name="sBean"
value="<%=sBean.getNum()+10%>"/>

<h1>Scope Bean</h1>
pBean num 값 : <jsp:getProperty property="num" name="pBean"/>
<br>
sBean num 값 : <jsp:getProperty property="num" name="sBean"/>
<br>
<a href="scopeBean2.jsp">세션종료</a>

<scopeBean2.jsp>

<!-- ch09/scopeBean2.jsp -->
<%@page contentType="text/html; charset=UTF-8"%>
<%
	// 세션에 특정한 값만 제거
	session.removeAttribute("sBean");
	// 세션 전체를 제거, 무효화, 초기화
	session.invalidate();
	response.sendRedirect("scopeBean.jsp");
%>

<결과>

cookCookie.jsp, tasteCookie.jsp

<cookCokkie.jsp>

<!-- ch12/cookCookie.jsp -->
<%@page contentType="text/html; charset=UTF-8"%>
<%
	String cookieName = "myCookie";
	// 쿠키를 생성
	Cookie cookie = new Cookie(cookieName,"Apple");
	cookie.setMaxAge(60); // 1분
	// 쿠키의 값을 변경
	cookie.setValue("Melon");
	// 쿠키 생성은 JSP 에서 했지만 Client 에게 전송
	response.addCookie(cookie);
%>
쿠키를 만들었습니다.<br>
쿠키 내용은 <a href="tasteCookie.jsp">여기로!!</a>

<tasteCookie.jsp>

<!-- tasteCookie.jsp -->
<%@page contentType="text/html; charset=UTF-8"%>
<%
		// 응답된 쿠키의 정보는 request에 저장
		Cookie []cookies = request.getCookies();
		if(cookies!=null){
			for(int i=0;i<cookies.length;i++){
		%>
			Cokkie Name : <%=cookies[i].getName() %><br>
			Cokkie Value : <%=cookies[i].getValue() %><br>
		<% 
			}
		}
%>

<결과>

login.jsp, loginProc.jsp, loginOK.jsp, logout.jsp

<login.jsp>

<!-- ch12/login.jsp -->
<%@page contentType="text/html; charset=UTF-8"%>
<%
	String id = (String)session.getAttribute("idKey");
	if(id!=null){
		// 로그인 상태
%>
<script>
	alert("로그인 되어었습니다.");
	location.href="loginOK.jsp";
</script>
<%}%>
<!DOCTYPE html>
<html>
<head>
<title>Simple LogIn</title>
<link href="style.css" rel="stylesheet" type="text/css">
</head>
<body bgcolor="#996600" topmargin="100">
<h2 align="center">Session 로그인</h2>
<table width="75%" border="1" align="center" bordercolor="#660000" bgcolor="#FFFF99">
  <tr bordercolor="#FFFF99"> 
    <td height="190" colspan="7"> 
	   <form method="post" action="loginProc.jsp">
        <table width="50%" border="1" align="center" cellspacing="0" cellpadding="0">
          <tr bordercolor="#FFFF66"> 
            <td colspan="2"><div align="center">Log in</div></td>
          </tr>
          <tr > 
            <td width="47%"><div align="center">ID</div></td>
            <td width="53%"><div align="center"><input name="id"></div></td>
          </tr>
          <tr> 
            <td><div align="center">PWD</div></td>
            <td><div align="center"><input name="pwd"></div></td>
          </tr>
          <tr> 
            <td colspan="2">
				<div align="center"> 
					<input type="submit" value="login">&nbsp; 
					<input type="reset" value="reset">
              </div>
			  </td>
          </tr>
        </table>
      </form></td>
  </tr>
</table>
</body>
</html>

<loginProc.jsp>

<!-- ch12/loginProc.jsp -->
<%@page contentType="text/html; charset=UTF-8"%>
<%
	String id = request.getParameter("id");	
	String pwd = request.getParameter("pwd");	
	// DB에 왔다 갔다 가정하고~
	boolean result = true;
	String msg = "로그인 실패 하였습니다.";
	String url = "login.jsp";
	if(result){
		msg = "로그인 되었습니다.";
		url = "loginOK.jsp";
		session.setAttribute("idKey", id);
	}
%>
<script>
	alert("<%=msg%>");
	location.href = "<%=url%>";
</script>

<loginOK.jsp>

<!-- ch12/loginOK.jsp -->
<%@page contentType="text/html; charset=UTF-8"%>
<%
	String id = (String)session.getAttribute("idKey");
	if(id==null){
		response.sendRedirect("login.jsp");
		return; // _jspService 메소드 중간
	}
	
%>
<!DOCTYPE html>
<html>
<head>
<title>Simple LogIn</title>
<link href="style.css" rel="stylesheet" type="text/css">
</head>
<body bgcolor="#996600" topmargin="100">
<table width="75%" border="1" align="center" cellpadding="1" cellspacing="1" bordercolor="#660000" bgcolor="#FFFF99">
  <tr bordercolor="#FFFF99"> 
    <td height="190" colspan="7"> 
      <table width="50%" border="1" align="center" cellspacing="0" cellpadding="0">
        <tr bordercolor="#FFFF66"> 
          <td colspan="2"><div align="center">Log On Page</div></td>
        </tr>
        <tr >         
          <td><div align="center"> 
           <strong><%=id%></strong>
			님이 로그인 하셨습니다. 
            </div></td>
          <td><div align="center"> 
           <a href="logout.jsp"><strong>LOG OUT</strong></a>
            </div></td>
        </tr>
      </table>
     </td>
  </tr>
</table>
</body>
</html>

<logout.jsp>

<!-- ch12/logout.jsp -->
<%@page contentType="text/html; charset=UTF-8"%>
<%
	session.invalidate();
	response.sendRedirect("login.jsp");
%>

<결과>


방명록 예제

GuestBook 구현

  1. guestbook : 패키지 및 폴더 생성
  2. table.sql -> 테이블 생성 3개
  • JoinBean.java, GuestBookBean.java, CommentBean.java

Eclipse 에서 테이블 생성방법

<table.sql>

create table tblJoin(
	id char(20) primary key,
	pwd char(20) not null,
	name char(20) not null,
	email char(30),
	hp char(40),
	grade char(2) default '0'
);

create table tblGuestBook(
	num int primary key auto_increment,
	id char(20) not null,
	contents text,
	ip char(15) not null,
	regdate date,
	regtime datetime,
	secret char(2) default '0'
);

create table tblComment(
 	cnum int primary key auto_increment,
 	num int not null,
 	cid char(20) not null,
 	comment text,
 	cip char(15) not null,
 	cregDate date
);


webapp -> guestbook 폴더 생성후 tabkle.sql 파일 넣기

mysql 파일 클릭 후 위의 화면처럼 따라하기





기존 5.1 파일이 있을 경우 add jar 클릭 후 8.0 파일 추가후 5.1 파일 remove 하기

url, name 수정 후 ok 버튼 누르기

테스트하기 눌러서 정상적으로 동작하면 -> finish 눌러 추가하기



오른쪽 마우스 클릭 후 excute all 누르기

mydb2에 테이블이 생성된것을 알 수 있음.


패키지 생성 후 위의 java 파일 생성


heidsql에 데이터 넣기

이후에 코드를 작성

CommentBean.java, GuestBookBean.java, GuestBookMgr.java, JoinBean.java

<CommentBean.java>

package guestbook;


public class CommentBean {
	private int num;
 	private int cnum;
 	private String cid;
 	private String comment;
 	private String cip;
 	private String cregDate;
	public int getNum() {
		return num;
	}
	public void setNum(int num) {
		this.num = num;
	}
	public int getCnum() {
		return cnum;
	}
	public void setCnum(int cnum) {
		this.cnum = cnum;
	}
	public String getCid() {
		return cid;
	}
	public void setCid(String cid) {
		this.cid = cid;
	}
	public String getComment() {
		return comment;
	}
	public void setComment(String comment) {
		this.comment = comment;
	}
	public String getCip() {
		return cip;
	}
	public void setCip(String cip) {
		this.cip = cip;
	}
	public String getCregDate() {
		return cregDate;
	}
	public void setCregDate(String cregDate) {
		this.cregDate = cregDate;
	}
}

<GuestVookBean.java>

package guestbook;

public class GuestBookBean {
	private int num;
	private String id;
	private String contents;
	private String ip;
	private String regdate;
	private String regtime;
	private String secret;
	
	public int getNum() {
		return num;
	}
	public void setNum(int num) {
		this.num = num;
	}
	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	public String getContents() {
		return contents;
	}
	public void setContents(String contents) {
		this.contents = contents;
	}
	public String getIp() {
		return ip;
	}
	public void setIp(String ip) {
		this.ip = ip;
	}
	public String getRegdate() {
		return regdate;
	}
	public void setRegdate(String regdate) {
		this.regdate = regdate;
	}
	public String getRegtime() {
		return regtime;
	}
	public void setRegtime(String regtime) {
		this.regtime = regtime;
	}
	public String getSecret() {
		return secret;
	}
	public void setSecret(String secret) {
		this.secret = secret;
	}
}

<JoinBean.java>

package guestbook;

public class JoinBean {
	private String id;
	private String pwd;
	private String name;
	private String email;
	private String hp;
	private String grade;

	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	public String getPwd() {
		return pwd;
	}
	public void setPwd(String pwd) {
		this.pwd = pwd;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getEmail() {
		return email;
	}
	public void setEmail(String email) {
		this.email = email;
	}
	public String getHp() {
		return hp;
	}
	public void setHp(String hp) {
		this.hp = hp;
	}
	public String getGrade() {
		return grade;
	}
	public void setGrade(String grade) {
		this.grade = grade;
	}
}

<GuestBookMgr.java>

package guestbook;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.text.SimpleDateFormat;
import java.util.Vector;

public class GuestBookMgr {
	private DBConnectionMgr pool;
	private final SimpleDateFormat SDF_DATE = new SimpleDateFormat("yyyy'년'  M'월' d'일' (E)");
	private final SimpleDateFormat SDF_TIME = new SimpleDateFormat("H:mm:ss");

	public GuestBookMgr() {
		pool = DBConnectionMgr.getInstance();
	}

	// Join Login
	// select id from tblJoin where id = ? and pwd = ?
	public boolean loginJoin(String id, String pwd) {
		Connection con = null;
		PreparedStatement pstmt = null;
		ResultSet rs = null;
		String sql = null;
		boolean flag = false;
		try {
			con = pool.getConnection();
			sql = "select id from tblJoin where id = ? and pwd = ?";
			pstmt = con.prepareStatement(sql);
			pstmt.setString(1, id);
			pstmt.setString(2, pwd);
			rs = pstmt.executeQuery();
			flag = rs.next();
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			pool.freeConnection(con, pstmt);
		}
		return flag;
	}

	// Join Informantion
	// select *from tblJoin where id = ?
	public JoinBean getJoin(String id) {
		Connection con = null;
		PreparedStatement pstmt = null;
		ResultSet rs = null;
		String sql = null;
		JoinBean bean = new JoinBean();
		try {
			con = pool.getConnection();
			sql = "select *from tblJoin where id = ?";
			pstmt = con.prepareStatement(sql);
			pstmt.setString(1, id);
			rs = pstmt.executeQuery();
			// where 절 이하에 조건이 pk 로 선언된 컬럼일때 if문으로 사용.
			if (rs.next()) {
				bean.setId(rs.getString(1));
				bean.setPwd(rs.getString(2));
				bean.setName(rs.getString(3));
				bean.setEmail(rs.getString(4));
				bean.setHp(rs.getString(5));
				bean.setGrade(rs.getString(6));
			}
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			pool.freeConnection(con, pstmt, rs);
		}
		return bean;
	}
	
	// GuestBook List
	public Vector<GuestBookBean> listGuestBook(String id, String grade){
		Connection con = null;
		PreparedStatement pstmt = null;
		ResultSet rs = null;
		String sql = null;
		Vector<GuestBookBean> vlist = new Vector<GuestBookBean>();
		try {
			con = pool.getConnection();
			if(grade.equals("1")) { // 관리자
				sql = "select *from tblGuestBook order by num desc";
				pstmt = con.prepareStatement(sql);
			}else if(grade.equals("0")) {
				sql = "select *from tblGuestBook "
						+ "where id=? or secret = '0' order by num desc";
				pstmt = con.prepareStatement(sql);
				pstmt.setString(1, id);
			}
			rs = pstmt.executeQuery();
			while(rs.next()) {
				GuestBookBean bean = new GuestBookBean();
				bean.setNum(rs.getInt("num"));
				bean.setId(rs.getString("id"));
				bean.setContents(rs.getString("contents"));
				bean.setIp(rs.getString("ip"));
				String tempDate = SDF_DATE.format(rs.getDate("regDate"));
				bean.setRegdate(tempDate);
				String tempTime = SDF_TIME.format(rs.getTime("regTime"));
				bean.setRegdate(tempTime);
				bean.setSecret(rs.getString("secret"));
				vlist.addElement(bean);
			}
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			pool.freeConnection(con, pstmt, rs);
		}
		return vlist;
	}
	
	// GuestBook Get	
	public GuestBookBean getGuestBook(int num) {
		Connection con = null;
		PreparedStatement pstmt = null;
		ResultSet rs = null;
		String sql = null;
		GuestBookBean bean = new GuestBookBean();
		try {
			con = pool.getConnection();
			sql = "select *from tblGuestBook where num = ?";
			pstmt = con.prepareStatement(sql);
			pstmt.setInt(1, num);
			rs = pstmt.executeQuery();
			if(rs.next()) {
				bean.setNum(rs.getInt("num"));
				bean.setId(rs.getString("id"));
				bean.setContents(rs.getString("contents"));
				bean.setIp(rs.getString("ip"));
				String tempDate = SDF_DATE.format(rs.getDate("regDate"));
				bean.setRegdate(tempDate);
				String tempTime = SDF_TIME.format(rs.getTime("regTime"));
				bean.setRegdate(tempTime);
				bean.setSecret(rs.getString("secret"));
			}
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			pool.freeConnection(con, pstmt, rs);
		}
		return bean;
	}

	// GuestBook Insert
	// sql = "insert tblGuestBook(id,contents,ip,regdate,regtime,secret)"
	// values(?,?,?,now(),now(),?)";
	public void insertGuestBook(GuestBookBean bean) {
		Connection con = null;
		PreparedStatement pstmt = null;
		String sql = null;

		try {
			con = pool.getConnection();
			sql = "insert tblGuestBook(id,contents,ip,regdate,regtime,secret)"
					+"values(?,?,?,now(),now(),?)";
			pstmt = con.prepareStatement(sql);
			pstmt.setString(1, bean.getId());
			pstmt.setString(2, bean.getContents());
			pstmt.setString(3, bean.getIp());
			pstmt.setString(4, bean.getSecret());
			pstmt.executeUpdate();// SQL로 실행
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			pool.freeConnection(con, pstmt);
		}
	}

	// GuestBook Update
	// sql = "update tblGuestBook set contents=?,ip=?,secret=? "
	// "where num=?";
	public void updateGuestBook(GuestBookBean bean) {
		Connection con = null;
		PreparedStatement pstmt = null;
		String sql = null;
		try {
			con = pool.getConnection();
			sql = "update tblGuestBook set contents=?,ip=?,secret=? where num=?\"";
			pstmt = con.prepareStatement(sql);
			pstmt.setString(1, bean.getContents());
			pstmt.setString(2, bean.getIp());
			pstmt.setString(3, bean.getSecret());
			pstmt.setInt(4, bean.getNum());
			pstmt.executeUpdate();
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			pool.freeConnection(con, pstmt);
		}
	}

	// GuestBook Delete
	// sql = "delete from tblGuestBook where num=?";
	public void deleteGuestBook(int num) {
		Connection con = null;
		PreparedStatement pstmt = null;
		String sql = null;
		try {
			con = pool.getConnection();
			sql = "delete from tblGuestBook where num=?";
			pstmt = con.prepareStatement(sql);
			pstmt.setInt(1, num);
			pstmt.executeUpdate();
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			pool.freeConnection(con, pstmt);
		}
	}
}

login.jsp, loginProc.jsp, logout.jsp

webapp -> guestbook -> 위 파일 생성

<login.jsp>

<!-- guestbook/login.jsp -->
<%@page contentType="text/html;charset=UTF-8"%>
<jsp:useBean id="login" class="guestbook.JoinBean" scope="session"/>
<%
		String id = (String)session.getAttribute("idKey");
		String url = request.getParameter("url");
%>
<title>로그인</title>
<link href="css/style.css" rel="stylesheet" type="text/css">
<body bgcolor="#996600">
<br><br>
<div align="center">
<%
		if(id!=null){
			%>
				<b><%=login.getName()%></b>님 환영합니다.<br>
				<a href="showGuestBook.jsp" >방명록 </a>&nbsp;
				<a href="logout.jsp" >로그아웃</a>
			<%
		}else{
%>
<h2>GuestBook 로그인</h2>
<form method="post" action="loginProc.jsp">
<table border="1">
	<tr>
		<td>id</td>
		<td> <input name="id" value="aaa">
		</td>
	</tr>
	<tr>
		<td>pwd</td>
		<td><input name="pwd" value="1234"></td>
	</tr>
	<tr>
		<td align="center" colspan="2">
		<input type="hidden" name="url" value="<%=url%>">
		<input type="submit" value="로그인">
		</td>
	</tr>
</table>
</form>
<%}%>
</div>
</body>

<loginProc.jsp>

<!-- guestbook/loginProc.jsp -->
<%@page contentType="text/html;charset=UTF-8"%>
<jsp:useBean id="mgr" class="guestbook.GuestBookMgr"/>
<jsp:useBean id="login" class="guestbook.JoinBean" scope="session"/>
<!-- login.jsp 요청한 id, pwd 저장 -->
<jsp:setProperty property="*" name="login"/>
<%
	String url = "login.jsp";
	if(request.getParameter("url")!=null&&
			!request.getParameter("url").equals("null")){
		url = request.getParameter("url");
	}
	
	boolean result = mgr.loginJoin(login.getId(), login.getPwd());
	//out.print(result);
	String msg = "로그인 실패";
	if(result){
		msg = "로그인 성공";
		login = mgr.getJoin(login.getId());
		session.setAttribute("idKey", login.getId());
		session.setAttribute("login", login);
	}
%>
<script>
	alert("<%=msg%>");
	location.href = "<%=url%>";
</script>

<logout.jsp>

<!-- guestbook/logout.jsp -->
<%@page contentType="text/html;charset=UTF-8"%>
<%
    session.invalidate();
%>
<script>
   alert('로그아웃 되었습니다.');
   location.href="login.jsp"; 
</script>

<임시결과>

profile
MH S
이전 포스트

23.03.15(Jsp) 과제

다음 포스트

23.03.17(Jsp)

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