domain

You can get the Domain from the Application Settings section in the Auth0 dashboard.

client_id

You can get the Client ID from the Application Settings section in the Auth0 dashboard.

client_secret

You can get the Client Secret from the Application Settings section in the Auth0 dashboard.

Intergrate Auth0 with Java servlet Application.jpg

auth0Tarball.tar.gz

java-servlet

login-servlet

callback-servlet

home-servlet

logout-servlet

java-servlet-original

Auth0 is a flexible, drop-in tool that lets you add authentication and authorization services to your applications. It allows you to authenticate and authorize apps and APIs with any identity provider running on any stack, device, or cloud. It makes it easy for you to give your users the ability to authenticate with the credentials that they are most familiar with.

This course walks you through the integration of Auth0 login into the Java servlet application. You will first be guided through the necessary configurations that you need to make on the Auth0 platform. After that, you will learn about the project structure and implementation of different servlets in detail by looking at a sample login application. The course will also explain the workflow of the different servlets coordinating with each other to successfully authenticate the users and land them on the homepage. You will be interacting with the sample login application throughout the course for a hands-on experience.

Integrate Auth0 with Java Servlet Application

## Display the homepage

After the user has been authenticated, meaning the tokens exist, the `Auth0Filter` will allow them to access our protected resources. This is handled by the `doFilter` method in the `Auth0Filter`.

In the widget below, you can see the `doGet` method in the `HomeServlet`. The tokens are obtained from the request's session (**lines 3--4**) and set as the `userId` attribute (**lines 5--9**) so they can be used from the JSP code (**line 10**).

# Display the homepage

After the user has been authenticated, meaning the tokens exist, the `Auth0Filter` will allow them to access our protected resources. This is handled by the `doFilter` method in the `Auth0Filter`.

In the widget below, you can see the `doGet` method in the `HomeServlet`. The tokens are obtained from the request's session (**lines 3--4**) and set as the `userId` attribute (**lines 5--9**) so they can be used from the JSP code (**line 10**).

Get introduced to the servlets displaying the homepage and handling the logout.

Introduction

Auth0 Integration

Conclusion

Homepage and Logout

Display the homepage