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InternalResourceViewResolver (Spring Framework API 2.0) - Spring Framework 2.0.5 API 文档英文版

The Spring Framework

org.springframework.web.servlet.view
Class InternalResourceViewResolver

java.lang.Object
  extended by org.springframework.context.support.ApplicationObjectSupport
      extended by org.springframework.web.context.support.WebApplicationObjectSupport
          extended by org.springframework.web.servlet.view.AbstractCachingViewResolver
              extended by org.springframework.web.servlet.view.UrlBasedViewResolver
                  extended by org.springframework.web.servlet.view.InternalResourceViewResolver
All Implemented Interfaces:
ApplicationContextAware, Ordered, ServletContextAware, ViewResolver

public class InternalResourceViewResolver
extends UrlBasedViewResolver

Convenient subclass of UrlBasedViewResolver that supports InternalResourceView (i.e. Servlets and JSPs) and subclasses such as JstlView and TilesView.

The view class for all views generated by this resolver can be specified via UrlBasedViewResolver.setViewClass(java.lang.Class). See UrlBasedViewResolver's javadoc for details.

BTW, it's good practice to put JSP files that just serve as views under WEB-INF, to hide them from direct access (e.g. via a manually entered URL). Only controllers will be able to access them then.

Note: When chaining ViewResolvers, an InternalResourceViewResolver always needs to be last, as it will attempt to resolve any view name, no matter whether the underlying resource actually exists.

Since:
17.02.2003
Author:
Juergen Hoeller
See Also:
UrlBasedViewResolver.setViewClass(java.lang.Class), UrlBasedViewResolver.setPrefix(java.lang.String), UrlBasedViewResolver.setSuffix(java.lang.String), UrlBasedViewResolver.setRequestContextAttribute(java.lang.String), InternalResourceView, JstlView, TilesView

Field Summary
 
Fields inherited from class org.springframework.web.servlet.view.UrlBasedViewResolver
FORWARD_URL_PREFIX, REDIRECT_URL_PREFIX
 
Fields inherited from class org.springframework.context.support.ApplicationObjectSupport
logger
 
Fields inherited from interface org.springframework.core.Ordered
HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE
 
Constructor Summary
InternalResourceViewResolver()
          Sets default viewClass to requiredViewClass.
 
Method Summary
protected  AbstractUrlBasedView buildView(String viewName)
          Creates a new View instance of the specified view class and configures it.
protected  Class requiredViewClass()
          Requires InternalResourceView.
 void setAlwaysInclude(boolean alwaysInclude)
          Specify whether to always include the view rather than forward to it.
 
Methods inherited from class org.springframework.web.servlet.view.UrlBasedViewResolver
canHandle, createView, getAttributesMap, getCacheKey, getContentType, getOrder, getPrefix, getRequestContextAttribute, getSuffix, getViewClass, getViewNames, initApplicationContext, isRedirectContextRelative, isRedirectHttp10Compatible, loadView, setAttributes, setAttributesMap, setContentType, setOrder, setPrefix, setRedirectContextRelative, setRedirectHttp10Compatible, setRequestContextAttribute, setSuffix, setViewClass, setViewNames
 
Methods inherited from class org.springframework.web.servlet.view.AbstractCachingViewResolver
clearCache, isCache, removeFromCache, resolveViewName, setCache
 
Methods inherited from class org.springframework.web.context.support.WebApplicationObjectSupport
getServletContext, getTempDir, getWebApplicationContext, isContextRequired, setServletContext
 
Methods inherited from class org.springframework.context.support.ApplicationObjectSupport
getApplicationContext, getMessageSourceAccessor, requiredContextClass, setApplicationContext
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

InternalResourceViewResolver

public InternalResourceViewResolver()
Sets default viewClass to requiredViewClass.

See Also:
UrlBasedViewResolver.setViewClass(java.lang.Class), requiredViewClass()
Method Detail

requiredViewClass

protected Class requiredViewClass()
Requires InternalResourceView.

Overrides:
requiredViewClass in class UrlBasedViewResolver
See Also:
InternalResourceView

setAlwaysInclude

public void setAlwaysInclude(boolean alwaysInclude)
Specify whether to always include the view rather than forward to it.

Default is "false". Switch this flag on to enforce the use of a Servlet include, even if a forward would be possible.

See Also:
InternalResourceView.setAlwaysInclude(boolean)

buildView

protected AbstractUrlBasedView buildView(String viewName)
                                  throws Exception
Description copied from class: UrlBasedViewResolver
Creates a new View instance of the specified view class and configures it. Does not perform any lookup for pre-defined View instances.

Spring lifecycle methods as defined by the bean container do not have to be called here; those will be applied by the loadView method after this method returns.

Subclasses will typically call super.buildView(viewName) first, before setting further properties themselves. loadView will then apply Spring lifecycle methods at the end of this process.

Overrides:
buildView in class UrlBasedViewResolver
Parameters:
viewName - the name of the view to build
Returns:
the View instance
Throws:
Exception - if the view couldn't be resolved
See Also:
UrlBasedViewResolver.loadView(String, java.util.Locale)

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