java.lang.Object
- org.springframework.web.context.AbstractContextLoaderInitializer
- - org.springframework.web.servlet.support.AbstractDispatcherServletInitializer
  - - org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer

All Implemented Interfaces:
WebApplicationInitializer
```
public abstract class AbstractAnnotationConfigDispatcherServletInitializer
extends AbstractDispatcherServletInitializer
```
WebApplicationInitializer to register a DispatcherServlet and use Java-based Spring configuration.
Implementations are required to implement:
- getRootConfigClasses() -- for "root" application context (non-web infrastructure) configuration.
- getServletConfigClasses() -- for DispatcherServlet application context (Spring MVC infrastructure) configuration.
If an application context hierarchy is not required, applications may return all configuration via getRootConfigClasses() and return null from getServletConfigClasses().
Since:
3.2
Author:
Arjen Poutsma, Chris Beams

Field Summary
- Fields inherited from class org.springframework.web.servlet.support.AbstractDispatcherServletInitializer
  DEFAULT_SERVLET_NAME
- Fields inherited from class org.springframework.web.context.AbstractContextLoaderInitializer
  logger

Constructor Summary
Constructors
Constructor Description
AbstractAnnotationConfigDispatcherServletInitializer()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`protected WebApplicationContext`	`createRootApplicationContext()`	Create the "root" application context to be provided to the `ContextLoaderListener`.
`protected WebApplicationContext`	`createServletApplicationContext()`	Create a servlet application context to be provided to the `DispatcherServlet`.
`protected abstract Class<?>[]`	`getRootConfigClasses()`	Specify `@Configuration` and/or `@Component` classes for the root application context.
`protected abstract Class<?>[]`	`getServletConfigClasses()`	Specify `@Configuration` and/or `@Component` classes for the Servlet application context.

Methods inherited from class org.springframework.web.servlet.support.AbstractDispatcherServletInitializer
createDispatcherServlet, customizeRegistration, getServletApplicationContextInitializers, getServletFilters, getServletMappings, getServletName, isAsyncSupported, onStartup, registerDispatcherServlet, registerServletFilter

Methods inherited from class org.springframework.web.context.AbstractContextLoaderInitializer
getRootApplicationContextInitializers, registerContextLoaderListener

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AbstractAnnotationConfigDispatcherServletInitializer
```
public AbstractAnnotationConfigDispatcherServletInitializer()
```
- Method Detail
  - createRootApplicationContext
```
@Nullable
protected WebApplicationContext createRootApplicationContext()
```
    Create the "root" application context to be provided to the ContextLoaderListener.
    The returned context is delegated to ContextLoaderListener(WebApplicationContext) and will be established as the parent context for any DispatcherServlet application contexts. As such, it typically contains middle-tier services, data sources, etc.
    This implementation creates an AnnotationConfigWebApplicationContext, providing it the annotated classes returned by getRootConfigClasses(). Returns null if getRootConfigClasses() returns null.
    Specified by:
    createRootApplicationContext in class AbstractContextLoaderInitializer
    Returns:
    the root application context, or null if a root context is not desired
    See Also:
    AbstractDispatcherServletInitializer
  - createServletApplicationContext
```
protected WebApplicationContext createServletApplicationContext()
```
    Create a servlet application context to be provided to the DispatcherServlet.
    The returned context is delegated to Spring's DispatcherServlet(WebApplicationContext). As such, it typically contains controllers, view resolvers, locale resolvers, and other web-related beans.
    This implementation creates an AnnotationConfigWebApplicationContext, providing it the annotated classes returned by getServletConfigClasses().
    Specified by:
    createServletApplicationContext in class AbstractDispatcherServletInitializer
    See Also:
    AbstractDispatcherServletInitializer.registerDispatcherServlet(ServletContext)
  - getRootConfigClasses
```
@Nullable
protected abstract Class<?>[] getRootConfigClasses()
```
    Specify @Configuration and/or @Component classes for the root application context.
    Returns:
    the configuration for the root application context, or null if creation and registration of a root context is not desired
  - getServletConfigClasses
```
@Nullable
protected abstract Class<?>[] getServletConfigClasses()
```
    Specify @Configuration and/or @Component classes for the Servlet application context.
    Returns:
    the configuration for the Servlet application context, or null if all configuration is specified through root config classes.

Class AbstractAnnotationConfigDispatcherServletInitializer

Field Summary

Fields inherited from class org.springframework.web.servlet.support.AbstractDispatcherServletInitializer

Fields inherited from class org.springframework.web.context.AbstractContextLoaderInitializer

Constructor Summary

Method Summary

Methods inherited from class org.springframework.web.servlet.support.AbstractDispatcherServletInitializer

Methods inherited from class org.springframework.web.context.AbstractContextLoaderInitializer

Methods inherited from class java.lang.Object

Constructor Detail

AbstractAnnotationConfigDispatcherServletInitializer

Method Detail

createRootApplicationContext

createServletApplicationContext

getRootConfigClasses

getServletConfigClasses