package member.servlet;
import java.io.IOException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class LogoutServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
HttpSession session = request.getSession();
String resUrl = null;
if(session.getAttribute("dto")!=null)
{
session.invalidate();
resUrl = "/login_form.jsp";
}
else
{
request.setAttribute("error_message", "로그인 먼저 하세요.");
resUrl = "login_form.jsp";
}
RequestDispatcher rdp = request.getRequestDispatcher(resUrl);
rdp.forward(request, response);
}
}
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
String errorMessage = (String)request.getAttribute("errorMessage");
%>
실행 도중 오류가 발생했습니다.<br>
오류 내용<%= errorMessage %>
<p>
<a href='/member_servlet/index.html'>메인페이지로 이동</a>
</p>
</body>
</html>
