Untitled

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ page import= "user.UserDAO" %>
<%@ page import= "java.io.PrintWriter" %>
<% request.setCharacterEncoding("UTF-8"); %>
<jsp:useBean id="user" class="user.User" scope="page" />
<jsp:setProperty name="user" property="userId" />
<jsp:setProperty name="user" property="userPassword" />
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>jsp 게시판 웹사이트</title>
</head>
<body>
	<%
		 if(user.getUserId() ==null || user.getUserPassword() == null) {
			PrintWriter script = response.getWriter();
			script.println("<script>");
			script.println("alert('입력되지 않은 사항이 있습니다.')");
			script.println("history.back()");
			script.println("</script>");
		}
		String userId = null;

		if(session.getAttribute("userId") != null) {
			userId = (String) session.getAttribute("userId");
		}

		UserDAO userDAO = new UserDAO();
		int result = userDAO.login(user.getUserId(), user.getUserPassword());
		if(result==1) {
			session.setAttribute("userId", user.getUserId());
			PrintWriter script = response.getWriter();
			script.println("<script>");
			script.println("alert('로그인 되었습니다. ')");
			script.println("location.href= 'main.jsp' ");
			script.println("</script>");
		} else if (result==0){
			PrintWriter script = response.getWriter();
			script.println("<script>");
			script.println("alert('비밀번호가 틀립니다.')");
			script.println("history.back()");
			script.println("</script>");
		} else if (result == -1) {
			PrintWriter script = response.getWriter();
			script.println("<script>");
			script.println("alert('존재하지 않는 아이디입니다.')");
			script.println("history.back()");
			script.println("</script>");
		} else if (result == -2 ) {
			PrintWriter script = response.getWriter();
			script.println("<script>");
			script.println("alert('데이터베이스 오류가 발생했습니다.')");
			script.println("history.back()");
			script.println("</script>");
		}
	%>


</body>
</html>