Spring Security JSP Tag Library - How to Secure JSP Pages with Examples

Spring Security provides a powerful JSP Tag Library that allows developers to manage authentication and authorization directly in JSP files. This enables role-based access control, displaying user information, and protecting forms without writing Java code in the JSP.

Prerequisites

• Java 11 or later
• Maven or Gradle
• Spring Boot with Spring Security (Latest version: 6.x)
• JSP and Servlet API

Step-by-Step Implementation

Step 1: Add Spring Security Dependencies

Add the following dependencies to your pom.xml:

<dependency>

<groupId>org.springframework.security</groupId>

<artifactId>spring-security-web</artifactId>

<version>6.2.0</version>

</dependency>

<dependency>

<groupId>org.springframework.security</groupId>

<artifactId>spring-security-taglibs</artifactId>

<version>6.2.0</version>

</dependency>

The spring-security-taglibs dependency provides the JSP tag library required for securing pages.

Step 2: Configure Spring Security

Java Config (Recommended for Spring Security 6+):

Legacy XML Configuration (Optional):

Step 3: Use Spring Security Tags in JSP

Add the tag library declaration at the top of your JSP:

1. Role-Based Access (authorize)

2. Display User Info (authentication)

3. CSRF Protection (csrfInput)

4. Logout Button (logout)

<sec:authorize access="isAuthenticated()">

<form action="/logout" method="post">

<sec:csrfInput />

<button type="submit">Logout</button>

</form>

</sec:authorize>

Other Useful JSP Security Tags

• sec:authorize: Controls access to parts of a page based on roles or authentication
• sec:authentication: Displays information about the current user (username, roles)
• sec:csrfInput: Generates a hidden input field with the CSRF token for forms
• sec:csrfMetaTags: Adds CSRF tokens as meta tags for JavaScript usage
• sec:http: Generates HTTP method input fields for forms
• sec:logout: Creates a logout link/button
• sec:accessDenied: Displays content when a user is not authorized to access a page

Complete Example: Admin Dashboard

admin.jsp:

• Only users with the ADMIN role can view the dashboard content.
• The page displays the logged-in username and provides a secure logout button.
• CSRF tokens are automatically included in forms using <sec:csrfInput />.

Benefits of Using Spring Security JSP Tags

• Secure pages without writing Java code in JSP.
• Role-based content rendering is straightforward.
• Simplifies CSRF protection in forms.
• Enables easy display of user information (username, roles).
• Integrates seamlessly with Spring Security authentication and authorization.