What are configuration files in Spring boot?

Spring Boot lets you externalize your configuration so that you can work with the same application code in different environments. You can use properties files, YAML files, environment variables, and command-line arguments to externalize configuration.

Where is Spring configuration file?

2 Answers. In essence the Spring configuration files (that can have any name by the way, not just the generic applicationContext. xml ) are treated as classpath resources and filed under src/main/resources .

What are the types of configuration in Spring?

There are three ways to define configuration, available in Spring 4 by default:

• xml-based configuration, when you describe configuration in xml file;
• java-based configuration, when configuration is Java class, marked with specific annotations;
• groovy-based configuration, when configuration is file with Groovy code;

How does Spring boot load?

factories file in the META-INF folder of the jar file containing the the fully qualified name of the Configuration classes to load. When Spring Boot finds a file like that, it will load the configuration as a bean, and the configuration usually loads other beans.

What is the benefit of using Spring boot profiles?

Spring Profiles provides an efficient way to bundle properties according to functionality, thus freeing the Developer from the tedium of other solutions to problem solve a growing set of application properties.

How do I run a configuration file?

To open a CFG file using the native Notepad app, open Windows File Explorer at the location of the file. If Windows automatically recognizes the CFG file, double-click it to open it in Notepad. Alternatively, right-click the CFG file and select the Open With option.

What is IOC and DI in spring?

IOC is technique where you let someone else to create the object for you. And the someone else in case of spring is IOC container. Dependency Injection is a technique where one object supplies the dependency of another object.