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

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org.springframework.web.struts
Class DispatchActionSupport

java.lang.Object
  org.apache.struts.action.Action
      org.apache.struts.actions.DispatchAction
          org.springframework.web.struts.DispatchActionSupport

public abstract class DispatchActionSupport
extends DispatchAction
extends DispatchAction

Convenience class for Spring-aware Struts 1.1+ DispatchActions.

Provides a reference to the current Spring application context, e.g. for bean lookup or resource loading. Auto-detects a ContextLoaderPlugIn context, falling back to the root WebApplicationContext. For typical usage, i.e. accessing middle tier beans, use a root WebApplicationContext.

For classic Struts Actions or Lookup/MappingDispatchActions, use the analogous ActionSupport or LookupDispatchActionSupport / MappingDispatchActionSupport class, respectively.

As an alternative approach, you can wire your Struts Actions themselves as Spring beans, passing references to them via IoC rather than looking up references in a programmatic fashion. Check out DelegatingActionProxy and DelegatingRequestProcessor.

Since:: 1.0.1
Author:: Juergen Hoeller
See Also:: ContextLoaderPlugIn.SERVLET_CONTEXT_PREFIX, WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE, ContextLoaderListener, ContextLoaderServlet, ActionSupport, LookupDispatchActionSupport, MappingDispatchActionSupport, DelegatingActionProxy, DelegatingRequestProcessor

Field Summary

Fields inherited from class org.apache.struts.actions.DispatchAction

clazz, log, messages, methods, types

Fields inherited from class org.apache.struts.action.Action

defaultLocale, servlet

Constructor Summary

DispatchActionSupport()


Method Summary

protected MessageSourceAccessor getMessageSourceAccessor()
          Return a MessageSourceAccessor for the application context used by this object, for easy message access.

protected ServletContext getServletContext()
          Return the current ServletContext.

protected File getTempDir()
          Return the temporary directory for the current web application, as provided by the servlet container.

protected WebApplicationContext getWebApplicationContext()
          Return the current Spring WebApplicationContext.

protected WebApplicationContext initWebApplicationContext(ActionServlet actionServlet)
          Fetch ContextLoaderPlugIn's WebApplicationContext from the ServletContext, falling back to the root WebApplicationContext (the usual case).

protected void onDestroy()
          Callback for custom destruction when the ActionServlet shuts down.

protected void onInit()
          Callback for custom initialization after the context has been set up.

void setServlet(ActionServlet actionServlet)
          Initialize the WebApplicationContext for this Action.

Methods inherited from class org.apache.struts.actions.DispatchAction

cancelled, dispatchMethod, execute, getMethod, getMethodName, getParameter, unspecified

Methods inherited from class org.apache.struts.action.Action

addErrors, addMessages, execute, generateToken, getDataSource, getDataSource, getErrors, getLocale, getMessages, getResources, getResources, getServlet, isCancelled, isTokenValid, isTokenValid, resetToken, saveErrors, saveErrors, saveErrors, saveMessages, saveMessages, saveToken, setLocale

Methods inherited from class java.lang.Object

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

Fields inherited from class org.apache.struts.actions.DispatchAction
`clazz, log, messages, methods, types`

Fields inherited from class org.apache.struts.action.Action
`defaultLocale, servlet`

Constructor Summary
`DispatchActionSupport()`

Method Summary
`protected MessageSourceAccessor`	`getMessageSourceAccessor()` Return a MessageSourceAccessor for the application context used by this object, for easy message access.
`protected ServletContext`	`getServletContext()` Return the current ServletContext.
`protected File`	`getTempDir()` Return the temporary directory for the current web application, as provided by the servlet container.
`protected WebApplicationContext`	`getWebApplicationContext()` Return the current Spring WebApplicationContext.
`protected WebApplicationContext`	`initWebApplicationContext(ActionServlet actionServlet)` Fetch ContextLoaderPlugIn's WebApplicationContext from the ServletContext, falling back to the root WebApplicationContext (the usual case).
`protected void`	`onDestroy()` Callback for custom destruction when the ActionServlet shuts down.
`protected void`	`onInit()` Callback for custom initialization after the context has been set up.
`void`	`setServlet(ActionServlet actionServlet)` Initialize the WebApplicationContext for this Action.

Methods inherited from class org.apache.struts.actions.DispatchAction
`cancelled, dispatchMethod, execute, getMethod, getMethodName, getParameter, unspecified`

Methods inherited from class org.apache.struts.action.Action
`addErrors, addMessages, execute, generateToken, getDataSource, getDataSource, getErrors, getLocale, getMessages, getResources, getResources, getServlet, isCancelled, isTokenValid, isTokenValid, resetToken, saveErrors, saveErrors, saveErrors, saveMessages, saveMessages, saveToken, setLocale`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail