What is username and password when starting Spring Boot with Tomcat?

Spring Boot with Tomcat: Understanding User Authentication

If you're deploying a Spring application via Spring Boot and encounter the need to authenticate when accessing localhost:8080, you might be wondering what the username and password are or how to set them. In this blog post, we'll address this common issue and provide easy solutions to get you up and running smoothly.

The Challenge

You've already tried adding the following configuration to your tomcat-users file, but it didn't work as expected:

<role rolename="manager-gui"/>
<user username="admin" password="admin" roles="manager-gui"/>

Now, let's dive into the details and understand how authentication works in Spring Boot with Tomcat.

Understanding Authentication in Spring Boot with Tomcat

When you start a Spring Boot application with Tomcat, it uses Tomcat's default configuration for user authentication. Tomcat provides implementation classes for different authentication mechanisms such as Basic, Digest, Form, etc.

By default, Tomcat's manager GUI is protected by Basic Authentication, which requires a valid username and password. To authenticate on localhost:8080, you need to provide the correct credentials.

Easy Solutions

Solution 1: Use Default Credentials

The simplest way to authenticate on localhost:8080 is to use the default credentials provided by Tomcat. The default username is "admin", and the default password is "admin". Make sure to enter these values when prompted for authentication.

Solution 2: Configure Custom Credentials

If you want to use custom credentials instead of the default ones, you can configure them in your Spring Boot application's application.properties file. Open the file and add the following lines:

spring.security.user.name=your_username
spring.security.user.password=your_password

Replace your_username with your desired username and your_password with your desired password. Save the file and restart your application. Now, you can use your custom credentials to authenticate on localhost:8080.

Call-To-Action

Now that you understand how to authenticate on localhost:8080, go ahead and give it a try. If you encountered any issues or have any questions, let us know in the comments below. We're here to help!

Remember, securing your Spring Boot application is crucial for protecting sensitive data and ensuring a safe user experience. Stay tuned for more informative blog posts on Spring Boot and other web development topics.

Keep coding! 👩‍💻 👨‍💻