Spring security code examples to run custom logics upon failed login attempt (authentication failure handler)
How to implement an authentication success handler in Spring Security to run custom logics upon successful login.
Spring Security code example to prevent user from going back to login page if already logged in.
Steps to enable Java 15 support in Eclipse IDE version 2020-09
How to use text blocks feature in Java with code examples
This article updates Java developers about the new features in JDK 15
Guide to download and install Oracle JDK 15 - a commercial build of Java SE Development Kit.
Guide to download and install OpenJDK 15 - an open-source distribution of Java Development Kit.
Code example to check file size before upload in HTML and Javascript/jQuery
How to code upload multiple files functionality in Spring Boot
How to implement file upload function for a Spring Boot application (upload images and display images in browser)
Code examples for PDF export in Spring Boot using OpenPDF library
A guide to implement Excel export functionality for a Spring Boot application, with Apache POI library and MySQL database.
Guide to setup Amazon Corretto JDK as replacement for OpenJDK or Oracle JDK
Spring Security Tips: Retrieve the UserDetails object that represents the currently logged-in user in a Spring Boot application.
Tips to implement a Logout link in a Spring Boot application instead of a button.
Guide to code CSV export function for a Spring Boot web application. The user can download the CSV file.
Guide to configure a Spring Boot project to use Log4j2 logging framework.
Guide to configure Logback for rolling file logging in a Spring Boot application.
A guide to logging in Spring Boot with code examples
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