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

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org.springframework.web.servlet.mvc
Class ParameterizableViewController

java.lang.Object
  org.springframework.context.support.ApplicationObjectSupport
      org.springframework.web.context.support.WebApplicationObjectSupport
          org.springframework.web.servlet.support.WebContentGenerator
              org.springframework.web.servlet.mvc.AbstractController
                  org.springframework.web.servlet.mvc.ParameterizableViewController

All Implemented Interfaces:

ApplicationContextAware, ServletContextAware, Controller

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public class ParameterizableViewController
extends AbstractController

Trivial controller that always returns a named view. The view can be configured using an exposed configuration property. This controller offers an alternative to sending a request straight to a view such as a JSP. The advantage here is that the client is not exposed to the concrete view technology but rather just to the controller URL; the concrete view will be determined by the ViewResolver.

An alternative to the ParameterizableViewController is a MultiActionController, which can define a variety of handler methods that just return a plain ModelAndView instance for a given view name.

Workflow (and that defined by superclass):

1. Request is received by the controller
2. call to handleRequestInternal which just returns the view, named by the configuration property viewName. Nothing more, nothing less

Exposed configuration properties (and those defined by superclass):

name	default	description
viewName	null	the name of the view the viewResolver will use to forward to (if this property is not set, an exception will be thrown during initialization)

Author:

Rod Johnson, Juergen Hoeller

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Field Summary

 

Fields inherited from class org.springframework.web.servlet.support.WebContentGenerator
METHOD_GET, METHOD_HEAD, METHOD_POST

 

Fields inherited from class org.springframework.context.support.ApplicationObjectSupport
logger

 

Constructor Summary
ParameterizableViewController()

 

Method Summary
String	getViewName()           Return the name of the view to delegate to.
protected  ModelAndView	handleRequestInternal(HttpServletRequest request, HttpServletResponse response)           Return a ModelAndView object with the specified view name.
protected  void	initApplicationContext()           Subclasses can override this for custom initialization behavior.
void	setViewName(String viewName)           Set the name of the view to delegate to.

 

Methods inherited from class org.springframework.web.servlet.mvc.AbstractController
handleRequest, isSynchronizeOnSession, setSynchronizeOnSession

 

Methods inherited from class org.springframework.web.servlet.support.WebContentGenerator
applyCacheSeconds, applyCacheSeconds, cacheForSeconds, cacheForSeconds, checkAndPrepare, checkAndPrepare, getCacheSeconds, getSupportedMethods, isRequireSession, isUseCacheControlHeader, isUseExpiresHeader, preventCaching, setCacheSeconds, setRequireSession, setSupportedMethods, setUseCacheControlHeader, setUseExpiresHeader

 

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

ParameterizableViewController

public ParameterizableViewController()

Method Detail

setViewName

public void setViewName(String viewName)

Set the name of the view to delegate to.

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getViewName

public String getViewName()

Return the name of the view to delegate to.

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initApplicationContext

protected void initApplicationContext()

Description copied from class: ApplicationObjectSupport

Subclasses can override this for custom initialization behavior. Gets called by setApplicationContext after setting the context instance.

Note: Does not get called on reinitialization of the context but rather just on first initialization of this object's context reference.

Overrides:

initApplicationContext in class ApplicationObjectSupport

See Also:

ApplicationObjectSupport.setApplicationContext(org.springframework.context.ApplicationContext)

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handleRequestInternal

protected ModelAndView handleRequestInternal(HttpServletRequest request,
                                             HttpServletResponse response)
                                      throws Exception

Return a ModelAndView object with the specified view name.

Specified by:

handleRequestInternal in class AbstractController

Throws:

Exception

See Also:

getViewName()

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