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Spring 5.0 Cookbook

Spring 5.0 Cookbook

By : Sherwin John C. Tragura
3.5 (2)
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Spring 5.0 Cookbook

Spring 5.0 Cookbook

3.5 (2)
By: Sherwin John C. Tragura

Overview of this book

The Spring framework has been the go-to framework for Java developers for quite some time. It enhances modularity, provides more readable code, and enables the developer to focus on developing the application while the underlying framework takes care of transaction APIs, remote APIs, JMX APIs, and JMS APIs. The upcoming version of the Spring Framework has a lot to offer, above and beyond the platform upgrade to Java 9, and this book will show you all you need to know to overcome common to advanced problems you might face. Each recipe will showcase some old and new issues and solutions, right from configuring Spring 5.0 container to testing its components. Most importantly, the book will highlight concurrent processes, asynchronous MVC and reactive programming using Reactor Core APIs. Aside from the core components, this book will also include integration of third-party technologies that are mostly needed in building enterprise applications. By the end of the book, the reader will not only be well versed with the essential concepts of Spring, but will also have mastered its latest features in a solution-oriented manner.
Table of Contents (14 chapters)
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Creating roles and permissions from the database


We have utilized UserDetailsService and UserDetails interfaces in handling user credentials and information but the information, still came from HashMap with static data. This recipe will show us how to archive all the user credentials and information to a database to be fetched by a custom UserDetails class.

Getting started

Open the MySQL server to alter our hrs schema. Also, utilize the same project ch04 for this recipe.

How to do it...

  1. Before we start the main recipe, let us add the following tables in our hrs schema:
  1. The userdetails class will contain the usual general user information, while logindetails contains the username, password, and encrypted password of each user. On the other hand, role_permission contains all the roles and access permissions of each user in logindetails. A Permission is defined as the allowable CRUD transaction to be performed by a user, such as READ, WRITE, VIEW, DELETE, and REPORT, which is different from the...

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