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WebApplicationContext (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

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org.springframework.web.context
Interface WebApplicationContext

All Superinterfaces:

ApplicationContext, ApplicationEventPublisher, BeanFactory, HierarchicalBeanFactory, ListableBeanFactory, MessageSource, ResourceLoader, ResourcePatternResolver

All Known Subinterfaces:

ConfigurablePortletApplicationContext, ConfigurableWebApplicationContext

All Known Implementing Classes:

AbstractRefreshablePortletApplicationContext, AbstractRefreshableWebApplicationContext, GenericWebApplicationContext, StaticPortletApplicationContext, StaticWebApplicationContext, XmlPortletApplicationContext, XmlWebApplicationContext

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public interface WebApplicationContext
extends ApplicationContext

Interface to provide configuration for a web application. This is read-only while the application is running, but may be reloaded if the implementation supports this.

This interface adds a getServletContext method to the generic ApplicationContext interface, and defines a well-known application attribute name that the root context must be bound to in the bootstrap process.

Like generic application contexts, web application contexts are hierarchical. There is a single root context per application, while each servlet in the application (including a dispatcher servlet in the MVC framework) has its own child context.

In addition to standard application context lifecycle capabilities, WebApplicationContext implementations need to detect ServletContextAware beans and invoke the setServletContext method accordingly.

Since:

January 19, 2001

Author:

Rod Johnson, Juergen Hoeller

See Also:

ServletContextAware.setServletContext(javax.servlet.ServletContext)

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Field Summary
static String	ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE           Context attribute to bind root WebApplicationContext to on successful startup.
static String	SCOPE_GLOBAL_SESSION           Scope identifier for global session scope: "globalSession".
static String	SCOPE_REQUEST           Scope identifier for request scope: "request".
static String	SCOPE_SESSION           Scope identifier for session scope: "session".

 

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

 

Method Summary
ServletContext	getServletContext()           Return the standard Servlet API ServletContext for this application.

 

Methods inherited from interface org.springframework.context.ApplicationContext
getAutowireCapableBeanFactory, getDisplayName, getParent, getStartupDate

 

Methods inherited from interface org.springframework.beans.factory.ListableBeanFactory
containsBeanDefinition, getBeanDefinitionCount, getBeanDefinitionNames, getBeanNamesForType, getBeanNamesForType, getBeansOfType, getBeansOfType

 

Methods inherited from interface org.springframework.beans.factory.HierarchicalBeanFactory
containsLocalBean, getParentBeanFactory

 

Methods inherited from interface org.springframework.beans.factory.BeanFactory
containsBean, getAliases, getBean, getBean, getType, isPrototype, isSingleton, isTypeMatch

 

Methods inherited from interface org.springframework.context.MessageSource
getMessage, getMessage, getMessage

 

Methods inherited from interface org.springframework.context.ApplicationEventPublisher
publishEvent

 

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

 

Methods inherited from interface org.springframework.core.io.ResourceLoader
getClassLoader, getResource

 

Field Detail

ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE

static final String ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE

Context attribute to bind root WebApplicationContext to on successful startup.

Note: If the startup of the root context fails, this attribute can contain an exception or error as value. Use WebApplicationContextUtils for convenient lookup of the root WebApplicationContext.

See Also:

WebApplicationContextUtils.getWebApplicationContext(javax.servlet.ServletContext), WebApplicationContextUtils.getRequiredWebApplicationContext(javax.servlet.ServletContext)

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SCOPE_REQUEST

static final String SCOPE_REQUEST

Scope identifier for request scope: "request". Supported in addition to the standard scopes "singleton" and "prototype".

See Also:

Constant Field Values

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SCOPE_SESSION

static final String SCOPE_SESSION

Scope identifier for session scope: "session". Supported in addition to the standard scopes "singleton" and "prototype".

See Also:

Constant Field Values

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SCOPE_GLOBAL_SESSION

static final String SCOPE_GLOBAL_SESSION

Scope identifier for global session scope: "globalSession". Supported in addition to the standard scopes "singleton" and "prototype".

See Also:

Constant Field Values

Method Detail

getServletContext

ServletContext getServletContext()

Return the standard Servlet API ServletContext for this application.

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