Class XmlWebApplicationContext

java.lang.Object

org.springframework.core.io.DefaultResourceLoader

org.springframework.context.support.AbstractApplicationContext

org.springframework.context.support.AbstractRefreshableApplicationContext

org.springframework.context.support.AbstractRefreshableConfigApplicationContext

org.springframework.web.context.support.AbstractRefreshableWebApplicationContext

org.springframework.web.context.support.XmlWebApplicationContext

All Implemented Interfaces:

Closeable, AutoCloseable, Aware, BeanFactory, BeanNameAware, HierarchicalBeanFactory, InitializingBean, ListableBeanFactory, ApplicationContext, ApplicationEventPublisher, ConfigurableApplicationContext, Lifecycle, MessageSource, EnvironmentCapable, ResourceLoader, ResourcePatternResolver, ConfigurableWebApplicationContext, WebApplicationContext

public class XmlWebApplicationContext
extends AbstractRefreshableWebApplicationContext

WebApplicationContext implementation which takes its configuration from XML documents, understood by an XmlBeanDefinitionReader. This is essentially the equivalent of GenericXmlApplicationContext for a web environment.

By default, the configuration will be taken from "/WEB-INF/applicationContext.xml" for the root context, and "/WEB-INF/test-servlet.xml" for a context with the namespace "test-servlet" (like for a DispatcherServlet instance with the servlet-name "test").

The config location defaults can be overridden via the "contextConfigLocation" context-param of ContextLoader and servlet init-param of FrameworkServlet. Config locations can either denote concrete files like "/WEB-INF/context.xml" or Ant-style patterns like "/WEB-INF/*-context.xml" (see PathMatcher javadoc for pattern details).

Note: In case of multiple config locations, later bean definitions will override ones defined in earlier loaded files. This can be leveraged to deliberately override certain bean definitions via an extra XML file.

For a WebApplicationContext that reads in a different bean definition format, create an analogous subclass of AbstractRefreshableWebApplicationContext. Such a context implementation can be specified as "contextClass" context-param for ContextLoader or "contextClass" init-param for FrameworkServlet.

Author:

Rod Johnson, Juergen Hoeller

See Also:

• AbstractRefreshableWebApplicationContext.setNamespace(String)
• AbstractRefreshableConfigApplicationContext.setConfigLocations(String...)
• XmlBeanDefinitionReader
• ContextLoader.initWebApplicationContext(ServletContext)
• FrameworkServlet.initWebApplicationContext()

Nested Class Summary

Nested classes/interfaces inherited from class DefaultResourceLoader

DefaultResourceLoader.ClassPathContextResource

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEFAULT_CONFIG_LOCATION	Default config location for the root context.
static final String	DEFAULT_CONFIG_LOCATION_PREFIX	Default prefix for building a config location for a namespace.
static final String	DEFAULT_CONFIG_LOCATION_SUFFIX	Default suffix for building a config location for a namespace.

Fields inherited from class AbstractApplicationContext

APPLICATION_EVENT_MULTICASTER_BEAN_NAME, LIFECYCLE_PROCESSOR_BEAN_NAME, logger, MESSAGE_SOURCE_BEAN_NAME

Fields inherited from interface BeanFactory

FACTORY_BEAN_PREFIX, FACTORY_BEAN_PREFIX_CHAR

Fields inherited from interface ConfigurableApplicationContext

APPLICATION_STARTUP_BEAN_NAME, BOOTSTRAP_EXECUTOR_BEAN_NAME, 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 ConfigurableWebApplicationContext

APPLICATION_CONTEXT_ID_PREFIX, SERVLET_CONFIG_BEAN_NAME

Fields inherited from interface ResourceLoader

CLASSPATH_URL_PREFIX

Fields inherited from interface ResourcePatternResolver

CLASSPATH_ALL_URL_PREFIX

Fields inherited from interface 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	Description
XmlWebApplicationContext()

Method Summary

Modifier and Type	Method	Description
protected String[]	getDefaultConfigLocations()	The default location for the root context is "/WEB-INF/applicationContext.xml", and "/WEB-INF/test-servlet.xml" for a context with the namespace "test-servlet" (like for a DispatcherServlet instance with the servlet-name "test").
protected void	initBeanDefinitionReader(XmlBeanDefinitionReader beanDefinitionReader)	Initialize the bean definition reader used for loading the bean definitions of this context.
protected void	loadBeanDefinitions(DefaultListableBeanFactory beanFactory)	Loads the bean definitions via an XmlBeanDefinitionReader.
protected void	loadBeanDefinitions(XmlBeanDefinitionReader reader)	Load the bean definitions with the given XmlBeanDefinitionReader.

Methods inherited from class AbstractRefreshableWebApplicationContext

createEnvironment, getApplicationName, getConfigLocations, getNamespace, getResourceByPath, getResourcePatternResolver, getServletConfig, getServletContext, initPropertySources, postProcessBeanFactory, setNamespace, setServletConfig, setServletContext

Methods inherited from class AbstractRefreshableConfigApplicationContext

afterPropertiesSet, resolvePath, setBeanName, setConfigLocation, setConfigLocations, setId

Methods inherited from class AbstractRefreshableApplicationContext

assertBeanFactoryActive, cancelRefresh, closeBeanFactory, createBeanFactory, customizeBeanFactory, getBeanFactory, hasBeanFactory, refreshBeanFactory, setAllowBeanDefinitionOverriding, setAllowCircularReferences

Methods inherited from class AbstractApplicationContext

addApplicationListener, addBeanFactoryPostProcessor, clearResourceCaches, close, containsBean, containsBeanDefinition, containsLocalBean, destroyBeans, doClose, findAllAnnotationsOnBean, findAnnotationOnBean, findAnnotationOnBean, finishBeanFactoryInitialization, finishRefresh, getAliases, getApplicationListeners, getApplicationStartup, getAutowireCapableBeanFactory, getBean, getBean, getBean, getBean, getBean, getBeanDefinitionCount, getBeanDefinitionNames, getBeanFactoryPostProcessors, getBeanNamesForAnnotation, getBeanNamesForType, getBeanNamesForType, getBeanNamesForType, getBeanNamesForType, getBeanProvider, getBeanProvider, getBeanProvider, getBeanProvider, getBeanProvider, getBeansOfType, getBeansOfType, getBeansWithAnnotation, getDisplayName, getEnvironment, getId, getInternalParentBeanFactory, getInternalParentMessageSource, getMessage, getMessage, getMessage, getParent, getParentBeanFactory, getResources, getStartupDate, getType, getType, initApplicationEventMulticaster, initLifecycleProcessor, initMessageSource, invokeBeanFactoryPostProcessors, isActive, isClosed, isPrototype, isRunning, isSingleton, isTypeMatch, isTypeMatch, obtainFreshBeanFactory, onClose, onRefresh, pause, prepareBeanFactory, prepareRefresh, publishEvent, publishEvent, publishEvent, refresh, registerBeanPostProcessors, registerListeners, registerShutdownHook, removeApplicationListener, resetCommonCaches, restart, setApplicationStartup, setDisplayName, setEnvironment, setParent, start, stop, toString

Methods inherited from class DefaultResourceLoader

addProtocolResolver, getClassLoader, getProtocolResolvers, getResource, getResourceCache, setClassLoader

Methods inherited from class Object

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

Methods inherited from interface ApplicationContext

getAutowireCapableBeanFactory, getDisplayName, getId, getParent, getStartupDate

Methods inherited from interface ApplicationEventPublisher

publishEvent, publishEvent

Methods inherited from interface BeanFactory

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

Methods inherited from interface ConfigurableApplicationContext

addApplicationListener, addBeanFactoryPostProcessor, addProtocolResolver, close, getApplicationStartup, getBeanFactory, getEnvironment, isActive, isClosed, pause, refresh, registerShutdownHook, removeApplicationListener, restart, setApplicationStartup, setClassLoader, setEnvironment, setId, setParent

Methods inherited from interface ConfigurableWebApplicationContext

setConfigLocation, setConfigLocations

Methods inherited from interface HierarchicalBeanFactory

containsLocalBean, getParentBeanFactory

Methods inherited from interface Lifecycle

isRunning, start, stop

Methods inherited from interface ListableBeanFactory

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

Methods inherited from interface MessageSource

getMessage, getMessage, getMessage

Methods inherited from interface ResourceLoader

getClassLoader, getResource

Methods inherited from interface ResourcePatternResolver

getResources

Field Details

DEFAULT_CONFIG_LOCATION

public static final String DEFAULT_CONFIG_LOCATION

Default config location for the root context.

See Also:

• Constant Field Values

DEFAULT_CONFIG_LOCATION_PREFIX

public static final String DEFAULT_CONFIG_LOCATION_PREFIX

Default prefix for building a config location for a namespace.

See Also:

• Constant Field Values

DEFAULT_CONFIG_LOCATION_SUFFIX

public static final String DEFAULT_CONFIG_LOCATION_SUFFIX

Default suffix for building a config location for a namespace.

See Also:

• Constant Field Values

Constructor Details

XmlWebApplicationContext

public XmlWebApplicationContext()

Method Details

loadBeanDefinitions

protected void loadBeanDefinitions(DefaultListableBeanFactory beanFactory)
                            throws BeansException,
IOException

Loads the bean definitions via an XmlBeanDefinitionReader.

Specified by:

loadBeanDefinitions in class AbstractRefreshableApplicationContext

Parameters:

beanFactory - the bean factory to load bean definitions into

Throws:

BeansException - if parsing of the bean definitions failed

IOException - if loading of bean definition files failed

See Also:

• XmlBeanDefinitionReader
• initBeanDefinitionReader(XmlBeanDefinitionReader)
• loadBeanDefinitions(DefaultListableBeanFactory)

initBeanDefinitionReader

protected void initBeanDefinitionReader(XmlBeanDefinitionReader beanDefinitionReader)

Initialize the bean definition reader used for loading the bean definitions of this context. Default implementation is empty.

Can be overridden in subclasses, for example, for turning off XML validation or using a different XmlBeanDefinitionParser implementation.

Parameters:

beanDefinitionReader - the bean definition reader used by this context

See Also:

• XmlBeanDefinitionReader.setValidationMode(int)
• XmlBeanDefinitionReader.setDocumentReaderClass(Class)

loadBeanDefinitions

protected void loadBeanDefinitions(XmlBeanDefinitionReader reader)
                            throws IOException

Load the bean definitions with the given XmlBeanDefinitionReader.

The lifecycle of the bean factory is handled by the refreshBeanFactory method; therefore this method is just supposed to load and/or register bean definitions.

Delegates to a ResourcePatternResolver for resolving location patterns into Resource instances.

Throws:

IOException - if the required XML document isn't found

See Also:

• AbstractRefreshableApplicationContext.refreshBeanFactory()
• AbstractRefreshableWebApplicationContext.getConfigLocations()
• AbstractApplicationContext.getResources(String)
• AbstractRefreshableWebApplicationContext.getResourcePatternResolver()

getDefaultConfigLocations

protected String[] getDefaultConfigLocations()

The default location for the root context is "/WEB-INF/applicationContext.xml", and "/WEB-INF/test-servlet.xml" for a context with the namespace "test-servlet" (like for a DispatcherServlet instance with the servlet-name "test").

Overrides:

getDefaultConfigLocations in class AbstractRefreshableConfigApplicationContext

Returns:

an array of default config locations, if any

See Also:

• AbstractRefreshableConfigApplicationContext.setConfigLocations(String...)