I have introduced to you database migration using Liquibase. Flyway does the same thing but in a much simpler way. It does not need to use a lock table during migration. How is the specification? Let’s find out together in this tutorial! First, I will… Read More
Maven Shade Plugin is a Maven plugin that allows us to build uber-jars. In a nutshell, uber-jar are .jar files that, besides containing the source code of the application, also contain the dependencies that the application is using. From there, it helps us to build… Read More
Public clients like Native mobile applications or Single Page Applications cannot securely store Client Secret in Authorization Code grant type. Decode source of the mobile application or view source code of Single Page Application, we can see this Client Secret information. So OAuth introduces Proof… Read More
When working with Cloud Providers, we need to consider solutions to save costs, at least at the development stage. Because most of the services of the Cloud Providers that we need to use will cost more or less money. One solution that I introduce to… Read More
Last week was another busy week for me. I am working on mvnForum and have run JavaVietNamForum forum at https://javavietnamforum.org/. Everyone can start using this forum, although at the moment there are many things I need to fix, I hope you understand. I just rebuilt… Read More
In real projects, you may encounter some cases where the application needs to use two different login methods depending on the user’s role, for example, there are applications that will need normal users to login using tokens or QR code, and admin login using username… Read More
Last week was a busy week for Khanh. Beside of the company’s work, I’m currently working on some old open sources like Abeille Forms Designer, mvnForum or openid-connect-spring-boot on my Github. Abeille Forms Designer is used to design forms with Java Swing, which I believe,… Read More
In addition to supporting generating public key and private key, Java also supports us to convert these public key and private key files to Java objects. We just need to know the data format used in these files! First, you need to read these files… Read More
After a long time, I just noticed this morning that I haven’t received emails from you guys recently. Checked the Contact Form again, there is a error! If you have contacted me in the past time but have not received a response, please let me… Read More
The Authorization Server in OAuth has the task of issuing an access token that allows the Client Application to use this access token to request the resource it needs to use. The Resource Server will validate this access token with the Authorization Server every time… Read More
