Spring Boot Master

Application Properties As we know Spring Boot configures almost all the configurations automatically, it also enables us to customize the configurations and properties according to our needs and environment. There are various methods which we can use to do the same. We can either write all properties in a textual file, do programmatically in our Java classes, or can set it while starting the application through CLI by passing command-line arguments. By default, Spring Initializr creates an application.properties file inside the project's class path. But we can also define it in the YAML file. Know the differences between the .properties file and .yml file The properties that we are talking about are database credentials and URL, server port, logging file path, catch control variables, can write any custom string constants, etc. Table of Contents Application Properties  Method 1: Using application.properties  Method 2: Using application.yml file  Method 3...