org.springframework.boot.web.servlet.context

Class ServletWebServerApplicationContext

java.lang.Object

org.springframework.core.io.DefaultResourceLoader

org.springframework.context.support.AbstractApplicationContext

org.springframework.context.support.GenericApplicationContext

org.springframework.web.context.support.GenericWebApplicationContext

org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext

All Implemented Interfaces:

Closeable, AutoCloseable, BeanFactory, HierarchicalBeanFactory, ListableBeanFactory, BeanDefinitionRegistry, ConfigurableWebServerApplicationContext, WebServerApplicationContext, ApplicationContext, ApplicationEventPublisher, ConfigurableApplicationContext, Lifecycle, MessageSource, AliasRegistry, EnvironmentCapable, ResourceLoader, ResourcePatternResolver, ThemeSource, ConfigurableWebApplicationContext, WebApplicationContext

Direct Known Subclasses:

AnnotationConfigServletWebServerApplicationContext, XmlServletWebServerApplicationContext

public class ServletWebServerApplicationContext
extends GenericWebApplicationContext
implements ConfigurableWebServerApplicationContext

A WebApplicationContext that can be used to bootstrap itself from a contained ServletWebServerFactory bean.

This context will create, initialize and run an WebServer by searching for a single ServletWebServerFactory bean within the ApplicationContext itself. The ServletWebServerFactory is free to use standard Spring concepts (such as dependency injection, lifecycle callbacks and property placeholder variables).

In addition, any Servlet or Filter beans defined in the context will be automatically registered with the web server. In the case of a single Servlet bean, the '/' mapping will be used. If multiple Servlet beans are found then the lowercase bean name will be used as a mapping prefix. Any Servlet named 'dispatcherServlet' will always be mapped to '/'. Filter beans will be mapped to all URLs ('/*').

For more advanced configuration, the context can instead define beans that implement the ServletContextInitializer interface (most often ServletRegistrationBeans and/or FilterRegistrationBeans). To prevent double registration, the use of ServletContextInitializer beans will disable automatic Servlet and Filter bean registration.

Although this context can be used directly, most developers should consider using the AnnotationConfigServletWebServerApplicationContext or XmlServletWebServerApplicationContext variants.

Since:

2.0.0

Author:

Phillip Webb, Dave Syer

See Also:

AnnotationConfigServletWebServerApplicationContext, XmlServletWebServerApplicationContext, ServletWebServerFactory

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ServletWebServerApplicationContext.ExistingWebApplicationScopes Utility class to store and restore any user defined scopes.

Nested classes/interfaces inherited from class org.springframework.core.io.DefaultResourceLoader

DefaultResourceLoader.ClassPathContextResource

Field Summary

Fields

Modifier and Type	Field and Description
static String	DISPATCHER_SERVLET_NAME Constant value for the DispatcherServlet bean name.

Fields inherited from class org.springframework.context.support.AbstractApplicationContext

APPLICATION_EVENT_MULTICASTER_BEAN_NAME, LIFECYCLE_PROCESSOR_BEAN_NAME, MESSAGE_SOURCE_BEAN_NAME

Fields inherited from interface org.springframework.context.ConfigurableApplicationContext

CONFIG_LOCATION_DELIMITERS, CONVERSION_SERVICE_BEAN_NAME, ENVIRONMENT_BEAN_NAME, LOAD_TIME_WEAVER_BEAN_NAME, SHUTDOWN_HOOK_THREAD_NAME, SYSTEM_ENVIRONMENT_BEAN_NAME, SYSTEM_PROPERTIES_BEAN_NAME

Fields inherited from interface org.springframework.beans.factory.BeanFactory

FACTORY_BEAN_PREFIX

Fields inherited from interface org.springframework.core.io.support.ResourcePatternResolver

CLASSPATH_ALL_URL_PREFIX

Fields inherited from interface org.springframework.core.io.ResourceLoader

CLASSPATH_URL_PREFIX

Fields inherited from interface org.springframework.web.context.ConfigurableWebApplicationContext

APPLICATION_CONTEXT_ID_PREFIX, SERVLET_CONFIG_BEAN_NAME

Fields inherited from interface org.springframework.web.context.WebApplicationContext

CONTEXT_ATTRIBUTES_BEAN_NAME, CONTEXT_PARAMETERS_BEAN_NAME, ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, SCOPE_APPLICATION, SCOPE_REQUEST, SCOPE_SESSION, SERVLET_CONTEXT_BEAN_NAME

Constructor Summary

Constructors

Constructor and Description
ServletWebServerApplicationContext() Create a new ServletWebServerApplicationContext.
ServletWebServerApplicationContext(DefaultListableBeanFactory beanFactory) Create a new ServletWebServerApplicationContext with the given DefaultListableBeanFactory.

Method Summary

Modifier and Type	Method and Description
protected void	finishRefresh()
protected Resource	getResourceByPath(String path)
String	getServerNamespace() Returns the namespace of the web server application context or null if no namespace has been set.
ServletConfig	getServletConfig()
protected Collection<ServletContextInitializer>	getServletContextInitializerBeans() Returns ServletContextInitializers that should be used with the embedded web server.
WebServer	getWebServer() Returns the WebServer that was created by the context or null if the server has not yet been created.
protected ServletWebServerFactory	getWebServerFactory() Returns the ServletWebServerFactory that should be used to create the embedded WebServer.
protected void	onClose()
protected void	onRefresh()
protected void	postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) Register ServletContextAwareProcessor.
protected void	prepareWebApplicationContext(ServletContext servletContext) Prepare the WebApplicationContext with the given fully loaded ServletContext.
void	refresh()
void	setServerNamespace(String serverNamespace) Set the server namespace of the context.
void	setServletConfig(ServletConfig servletConfig)

Methods inherited from class org.springframework.web.context.support.GenericWebApplicationContext

createEnvironment, getApplicationName, getConfigLocations, getNamespace, getResourcePatternResolver, getServletContext, getTheme, initPropertySources, setConfigLocation, setConfigLocations, setNamespace, setServletContext

Methods inherited from class org.springframework.context.support.GenericApplicationContext

cancelRefresh, closeBeanFactory, getAutowireCapableBeanFactory, getBeanDefinition, getBeanFactory, getClassLoader, getDefaultListableBeanFactory, getResource, getResources, isAlias, isBeanNameInUse, refreshBeanFactory, registerAlias, registerBean, registerBean, registerBean, registerBean, registerBean, registerBean, registerBeanDefinition, removeAlias, removeBeanDefinition, setAllowBeanDefinitionOverriding, setAllowCircularReferences, setClassLoader, setParent, setResourceLoader

Methods inherited from class org.springframework.context.support.AbstractApplicationContext

addApplicationListener, addBeanFactoryPostProcessor, assertBeanFactoryActive, close, containsBean, containsBeanDefinition, containsLocalBean, destroy, destroyBeans, doClose, findAnnotationOnBean, finishBeanFactoryInitialization, getAliases, getApplicationListeners, getBean, getBean, getBean, getBean, getBean, getBeanDefinitionCount, getBeanDefinitionNames, getBeanFactoryPostProcessors, getBeanNamesForAnnotation, getBeanNamesForType, getBeanNamesForType, getBeanNamesForType, getBeanNamesForType, getBeanProvider, getBeanProvider, getBeansOfType, getBeansOfType, getBeansWithAnnotation, getDisplayName, getEnvironment, getId, getInternalParentBeanFactory, getInternalParentMessageSource, getMessage, getMessage, getMessage, getParent, getParentBeanFactory, getStartupDate, getType, getType, initApplicationEventMulticaster, initLifecycleProcessor, initMessageSource, invokeBeanFactoryPostProcessors, isActive, isPrototype, isRunning, isSingleton, isTypeMatch, isTypeMatch, obtainFreshBeanFactory, prepareBeanFactory, prepareRefresh, publishEvent, publishEvent, publishEvent, registerBeanPostProcessors, registerListeners, registerShutdownHook, resetCommonCaches, setDisplayName, setEnvironment, setId, start, stop, toString

Methods inherited from class org.springframework.core.io.DefaultResourceLoader

addProtocolResolver, clearResourceCaches, getProtocolResolvers, getResourceCache

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.springframework.context.ConfigurableApplicationContext

addApplicationListener, addBeanFactoryPostProcessor, addProtocolResolver, close, getBeanFactory, getEnvironment, isActive, registerShutdownHook, setEnvironment, setId, setParent

Methods inherited from interface org.springframework.context.Lifecycle

isRunning, start, stop

Methods inherited from interface org.springframework.boot.web.context.WebServerApplicationContext

hasServerNamespace

Methods inherited from interface org.springframework.context.ApplicationContext

getApplicationName, getAutowireCapableBeanFactory, getDisplayName, getId, getParent, getStartupDate

Methods inherited from interface org.springframework.beans.factory.ListableBeanFactory

containsBeanDefinition, findAnnotationOnBean, getBeanDefinitionCount, getBeanDefinitionNames, getBeanNamesForAnnotation, getBeanNamesForType, getBeanNamesForType, getBeanNamesForType, getBeanNamesForType, getBeansOfType, getBeansOfType, getBeansWithAnnotation

Methods inherited from interface org.springframework.beans.factory.HierarchicalBeanFactory

containsLocalBean, getParentBeanFactory

Methods inherited from interface org.springframework.beans.factory.BeanFactory

containsBean, getAliases, getBean, getBean, getBean, getBean, getBean, getBeanProvider, getBeanProvider, getType, getType, isPrototype, isSingleton, isTypeMatch, isTypeMatch

Methods inherited from interface org.springframework.context.MessageSource

getMessage, getMessage, getMessage

Methods inherited from interface org.springframework.context.ApplicationEventPublisher

publishEvent, publishEvent

Methods inherited from interface org.springframework.core.io.support.ResourcePatternResolver

getResources

Methods inherited from interface org.springframework.core.io.ResourceLoader

getClassLoader, getResource

Methods inherited from interface org.springframework.beans.factory.support.BeanDefinitionRegistry

containsBeanDefinition, getBeanDefinitionCount, getBeanDefinitionNames

Methods inherited from interface org.springframework.core.AliasRegistry

getAliases

Field Detail

DISPATCHER_SERVLET_NAME

public static final String DISPATCHER_SERVLET_NAME

Constant value for the DispatcherServlet bean name. A Servlet bean with this name is deemed to be the "main" servlet and is automatically given a mapping of "/" by default. To change the default behavior you can use a ServletRegistrationBean or a different bean name.

See Also:

Constant Field Values

Constructor Detail

ServletWebServerApplicationContext

public ServletWebServerApplicationContext()

Create a new ServletWebServerApplicationContext.

ServletWebServerApplicationContext

public ServletWebServerApplicationContext(DefaultListableBeanFactory beanFactory)

Create a new ServletWebServerApplicationContext with the given DefaultListableBeanFactory.

Parameters:

beanFactory - the DefaultListableBeanFactory instance to use for this context

Method Detail

postProcessBeanFactory

protected void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)

Register ServletContextAwareProcessor.

Overrides:

postProcessBeanFactory in class GenericWebApplicationContext

See Also:

ServletContextAwareProcessor

refresh

public final void refresh()
                   throws BeansException,
                          IllegalStateException

Specified by:

refresh in interface ConfigurableApplicationContext

Overrides:

refresh in class AbstractApplicationContext

Throws:

BeansException

IllegalStateException

onRefresh

protected void onRefresh()

Overrides:

onRefresh in class GenericWebApplicationContext

finishRefresh

protected void finishRefresh()

Overrides:

finishRefresh in class AbstractApplicationContext

onClose

protected void onClose()

Overrides:

onClose in class AbstractApplicationContext

getWebServerFactory

protected ServletWebServerFactory getWebServerFactory()

Returns the ServletWebServerFactory that should be used to create the embedded WebServer. By default this method searches for a suitable bean in the context itself.

Returns:

a ServletWebServerFactory (never null)

getServletContextInitializerBeans

protected Collection<ServletContextInitializer> getServletContextInitializerBeans()

Returns ServletContextInitializers that should be used with the embedded web server. By default this method will first attempt to find ServletContextInitializer, Servlet, Filter and certain EventListener beans.

Returns:

the servlet initializer beans

prepareWebApplicationContext

protected void prepareWebApplicationContext(ServletContext servletContext)

Prepare the WebApplicationContext with the given fully loaded ServletContext. This method is usually called from ServletContextInitializer.onStartup(ServletContext) and is similar to the functionality usually provided by a ContextLoaderListener.

Parameters:

servletContext - the operational servlet context

getResourceByPath

protected Resource getResourceByPath(String path)

Overrides:

getResourceByPath in class GenericWebApplicationContext

getServerNamespace

public String getServerNamespace()

Description copied from interface: WebServerApplicationContext

Returns the namespace of the web server application context or null if no namespace has been set. Used for disambiguation when multiple web servers are running in the same application (for example a management context running on a different port).

Specified by:

getServerNamespace in interface WebServerApplicationContext

Returns:

the server namespace

setServerNamespace

public void setServerNamespace(String serverNamespace)

Description copied from interface: ConfigurableWebServerApplicationContext

Set the server namespace of the context.

Specified by:

setServerNamespace in interface ConfigurableWebServerApplicationContext

Parameters:

serverNamespace - the server namespace

See Also:

WebServerApplicationContext.getServerNamespace()

setServletConfig

public void setServletConfig(ServletConfig servletConfig)

Specified by:

setServletConfig in interface ConfigurableWebApplicationContext

Overrides:

setServletConfig in class GenericWebApplicationContext

getServletConfig

public ServletConfig getServletConfig()

Specified by:

getServletConfig in interface ConfigurableWebApplicationContext

Overrides:

getServletConfig in class GenericWebApplicationContext

getWebServer

public WebServer getWebServer()

Returns the WebServer that was created by the context or null if the server has not yet been created.

Specified by:

getWebServer in interface WebServerApplicationContext

Returns:

the embedded web server