How do you handle authentication and authorization in Java applications?

 

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Handling authentication and authorization in Java applications involves securing access to your system by verifying users' identities (authentication) and determining their permissions or access levels (authorization). Here’s a high-level overview of how to approach these two aspects in a Java application:

1. Authentication

Authentication is the process of verifying the identity of a user or system. In Java, common methods include using username/password combinations or integrating with OAuth2 or other external authentication services.

Steps to Handle Authentication:

• Basic Authentication: This is the simplest form of authentication where users submit a username and password to a server. The server checks the credentials against a database, and if they match, the user is authenticated.

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