Web Environment
A SpringApplication attempts to create the right type of ApplicationContext on your behalf.
The algorithm used to determine a WebApplicationType is the following:
-
If Spring MVC is present, an
AnnotationConfigServletWebServerApplicationContextis used -
If Spring MVC is not present and Spring WebFlux is present, an
AnnotationConfigReactiveWebServerApplicationContextis used -
Otherwise,
AnnotationConfigApplicationContextis used
This means that if you are using Spring MVC and the new WebClient from Spring WebFlux in the same application, Spring MVC will be used by default.
You can override that easily by calling setWebApplicationType(WebApplicationType).
It is also possible to take complete control of the ApplicationContext type that is used by calling setApplicationContextClass(…).
It is often desirable to call setWebApplicationType(WebApplicationType.NONE) when using SpringApplication within a JUnit test.
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