Untitled

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ page import= "bbs.BbsDAO" %>
<%@ page import= "bbs.Bbs" %>
<%@ page import= "java.io.PrintWriter, java.lang.*" %>
<% request.setCharacterEncoding("UTF-8"); %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>jsp 게시판 웹사이트</title>
</head>
<body>
	<%
		String userId = null;

		if(session.getAttribute("userId") != null) {
			userId = (String) session.getAttribute("userId");
		}
		if (userId == null ) {
			PrintWriter script = response.getWriter();
			script.println("<script>");
			script.println("alert('로그인을 하세요')");
			script.println("location.href= 'login.jsp' ");
			script.println("</script>");
		}

		int bbsId = 0;
		if(request.getParameter("bbsId") != null ) {
			bbsId= Integer.parseInt(request.getParameter("bbsId"));
		}
		if(bbsId==0) {
			PrintWriter script = response.getWriter();
			script.println("<script>");
			script.println("alert('유효하지 않은 글입니다.')");
			script.println("location.href= 'bbs.jsp' ");
			script.println("</script>");
		}

		Bbs bbs = new BbsDAO().getBbs(bbsId);
		if(!userId.equals(bbs.getUserId())){
			PrintWriter script = response.getWriter();
			script.println("<script>");
			script.println("alert('권한이 없습니다.')");
			script.println("location.href= 'bbs.jsp' ");
			script.println("</script>");
		}

		else {
			if (request.getParameter("bbsTitle")==null || request.getParameter("bbsContent")==null
			|| request.getParameter("bbsTitle").equals("")|| request.getParameter("bbsContent").equals("")) {
						PrintWriter script = response.getWriter();
						script.println("<script>");
						script.println("alert('입력이 안 된 사항이 있습니다.')");
						script.println("history.back()");
						script.println("</script>");
					} else {

					BbsDAO bbsDAO = new BbsDAO();
					int result = bbsDAO.update(bbsId, request.getParameter("bbsTitle"), request.getParameter("bbsContent"));

					if(result== - 1) {
						PrintWriter script = response.getWriter();
						script.println("<script>");
						script.println("alert('글수정이 실패했습니다..')");
						script.println("history.back()");
						script.println("</script>");
					} else {
						PrintWriter script = response.getWriter();
						script.println("<script>");
						script.println("location.href= 'bbs.jsp' ");
						script.println("</script>");
					}
				}
		}
	%>
</body>
</html>