What is context configuration?

What is context configuration?

@ContextConfiguration defines class-level metadata that is used to determine how to load and configure an ApplicationContext for integration tests.

What is context configuration in Spring?

@ContextConfiguration loads an ApplicationContext for Spring integration test. @ContextConfiguration can load ApplicationContext using XML resource or the JavaConfig annotated with @Configuration . The @ContextConfiguration annotation can also load a component annotated with @Component , @Service , @Repository etc.

What is the @ContextConfiguration used for?

@ContextConfiguration is used to determine how to load and configure an ApplicationContext in integratrion tests, like in this JUnit test: @RunWith(SpringJUnit4ClassRunner. class) @ContextConfiguration(“/test5.

What is context annotation config?

The annotation is mainly used to activate the dependency injection annotations. That is because activates the annotations only for the beans already registered in the application context.

What is the purpose of a web application context?

Web Application context extended Application Context which is designed to work with the standard javax. servlet. ServletContext so it’s able to communicate with the container. There are many things possible to do with the ServletContext instance, for example accessing WEB-INF resources(xml configs and etc.)

What is the use of @SpringBootConfiguration?

@SpringBootConfiguration is a class-level annotation that is part of the Spring Boot framework. It indicates that a class provides application configuration. Spring Boot favors Java-based configuration. As a result, the @SpringBootConfiguration annotation is the primary source for configuration in applications.

What is a Web application context?

WebApplicationContext is the another servlet-specific context that is loaded based on the dispatcher servlets configured in the application’s web. xml file. So each dispatcher servlet has its own servlet-context initialized from -servlet.

How do I use a component scan?

Using @ComponentScan in a Spring Application. With Spring, we use the @ComponentScan annotation along with the @Configuration annotation to specify the packages that we want to be scanned. @ComponentScan without arguments tells Spring to scan the current package and all of its sub-packages.

How do you do annotation configuration?

So instead of using XML to describe a bean wiring, you can move the bean configuration into the component class itself by using annotations on the relevant class, method, or field declaration. Annotation injection is performed before XML injection.

What is the difference between application context and servlet-context?

Application Context: It is a Spring specific thing. It is initialized by Spring. It holds all the bean definitions and life-cycle of the beans that are defined inside the spring configuration files. Servlet-Context has no idea about these things.