Spring Security: Login and Logout Form JSP
Posted on : 25-01-2010 | By : Loiane | In : Spring, Spring Security
3
When you configure spring security in your web application you can configure your login.jsp in the applicationContext-security.xml.
But how this page looks like? If you search around, you are not going to find it easily. There is many articles about how to configure spring security, but a few ones list login.jsp.
If you take a look in the spring security distribution file, you are going to find an example application, and inside it: login.jsp and logout link.
login.jsp
<%@ taglib prefix='c' uri='http://java.sun.com/jstl/core_rt' %>
<%@ page import="org.springframework.security.ui.AbstractProcessingFilter" %>
<%@ page import="org.springframework.security.ui.webapp.AuthenticationProcessingFilter" %>
<%@ page import="org.springframework.security.AuthenticationException" %>
<html>
<head>
<title>Login</title>
</head>
<body>
<h1>Login</h1>
<c:if test="${not empty param.login_error}">
<font color="red">
Your login attempt was not successful, try again.<br/><br/>
Reason: <c:out value="${SPRING_SECURITY_LAST_EXCEPTION.message}"/>.
</font>
</c:if>
<form name="f" action="<c:url value='j_spring_security_check'/>" method="POST">
<table>
<tr><td>User:</td><td><input type='text' name='j_username' value='<c:if test="${not empty param.login_error}"><c:out value="${SPRING_SECURITY_LAST_USERNAME}"/></c:if>'/></td></tr>
<tr><td>Password:</td><td><input type='password' name='j_password'></td></tr>
<tr><td><input type="checkbox" name="_spring_security_remember_me"></td><td>Don't ask for my password for two weeks</td></tr>
<tr><td colspan='2'><input name="submit" type="submit"></td></tr>
<tr><td colspan='2'><input name="reset" type="reset"></td></tr>
</table>
</form>
</body>
</html>
The names of the fields MUST remain the same or else your authentication will fail.
As far as the logout goes, all you have to do is send the user to a particular servlet define by spring-security.
logout link:
<a href="<c:url value="/j_spring_security_logout"/>">Logout</a>
That’s it!
Happy Coding!
