How/Where I can learn the micro level structure of a real world Java web application with sample code and explanation

This page summarizes the projects mentioned and recommended in the original post on /r/learnjava

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  • spring-petclinic

    A sample Spring-based application

  • The Spring Pet Clinic is the standard example for what you are asking for, at least for Spring web applications.

  • p6spy

    P6Spy is a framework that enables database data to be seamlessly intercepted and logged with no code changes to the application.

  • But, there is a library called p6spy which implements database logging with a fake JDBC driver that is called before the real JDBC driver, and logs everything which goes through. It's handy if you're not using JPA and not using Spring.

  • WorkOS

    The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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