Redirecting users in JSP from within a includes - java syntax error
So my setup for my web application is that I have a general header and footer and then I just include them in all my other pages so that all the common elements for all the pages are in a single page. The only problem I'm running into is when I want to redirect the user back to a login page if the "username" session has not already been created.
The problem that I"m running into is that I have an if statement at the top of my header.jsp and then I have the else i开发者_StackOverflow中文版n the footer.jsp and it is giving me a java syntax error. Any ideas? Here is the code I'm referring to...
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%
if(session.getAttribute("username") != null)
{
%>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!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=ISO-8859-1">
<!-- CSS files -->
<link rel="stylesheet" href="../CSS/headerStyle.css" type="text/css" media="screen" />
<title>Insert title here</title>
</head>
<body>
<div id="container">
<div id="header">
<div id="headerTitle">Title</div>
</div>
</div>
<%} %>
And then here is the footer
<!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">
<link rel="stylesheet" href="../CSS/headerStyle.css" type="text/css" media="screen" />
</head>
<body>
<div id="footer"></div>
</body>
</html>
<%
else
{
response.sendRedirect("../wa_login/login.jsp");
}
%>
However it is giving me an error on the else statement because the else doesn't have an if statement because it's in the header file.
Each .jsp has to compile as an independent unit. Hence the error.
Why not just perform the check in the header and redirect from there ?
<%
if(session.getAttribute("username") == null)
{
response.sendRedirect("../wa_login/login.jsp");
}
%>
加载中,请稍侯......
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