org.springframework.web.servlet.mvc.support
Class ControllerClassNameHandlerMapping

java.lang.Object
  org.springframework.context.support.ApplicationObjectSupport
      org.springframework.web.context.support.WebApplicationObjectSupport
          org.springframework.web.servlet.handler.AbstractHandlerMapping
              org.springframework.web.servlet.handler.AbstractUrlHandlerMapping
                  org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping

All Implemented Interfaces:

ApplicationContextAware, Ordered, ServletContextAware, HandlerMapping

public class ControllerClassNameHandlerMapping
extends AbstractUrlHandlerMapping
implements HandlerMapping

Implementation of HandlerMapping that follows a simple convention for generating URL path mappings from the class names of registered Controller and ThrowawayController beans.

For simple Controller implementations (those that handle a single request type), the convention is to take the short name of the Class, remove the 'Controller' suffix if it exists and return the remaining text, lowercased, as the mapping, with a leading /. For example:

• WelcomeController -> /welcome*
• HomeController -> /home*

For MultiActionControllers then a similar mapping is registered, except that all sub-paths are registed using the trailing wildcard pattern /*. For example:

• WelcomeController -> /welcome/*
• CatalogController -> /catalog/*

For MultiActionController it is often useful to use this mapping strategy in conjunction with the InternalPathMethodNameResolver.

Since:

2.0

Author:

Rob Harrop, Juergen Hoeller

See Also:

Controller, ThrowawayController, MultiActionController

Field Summary

protected Log

logger Logger available to subclasses

Fields inherited from interface org.springframework.web.servlet.HandlerMapping

PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

ControllerClassNameHandlerMapping()

Method Summary

protected void	detectControllers() Detect all the Controller and ThrowawayController beans registered in the ApplicationContext and register a URL path mapping for each one based on rules defined here.
protected String	generatePathMapping(Class controllerClass) Generate the actual URL path for the given Controller class.
protected void	initApplicationContext() Calls the detectControllers() method in addition to the superclass's initialization.
protected void	registerController(String beanName) Register the controller with the given name, as defined in the current application context.
protected void	registerControllers(Class controllerType) Register all controllers of the given type, searching the current DispatcherServlet's ApplicationContext for matching beans.

Methods inherited from class org.springframework.web.servlet.handler.AbstractUrlHandlerMapping

exposePathWithinMapping, getHandlerInternal, getHandlerMap, lookupHandler, registerHandler, registerHandler, setAlwaysUseFullPath, setLazyInitHandlers, setPathMatcher, setUrlDecode, setUrlPathHelper

Methods inherited from class org.springframework.web.servlet.handler.AbstractHandlerMapping

adaptInterceptor, getDefaultHandler, getHandler, getOrder, initInterceptors, setDefaultHandler, setInterceptors, setOrder

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

Methods inherited from interface org.springframework.web.servlet.HandlerMapping

getHandler

Field Detail

logger

protected final Log logger

Logger available to subclasses

Constructor Detail

ControllerClassNameHandlerMapping

public ControllerClassNameHandlerMapping()

Method Detail

initApplicationContext

protected void initApplicationContext()

Calls the detectControllers() method in addition to the superclass's initialization.

Overrides:

initApplicationContext in class AbstractHandlerMapping

See Also:

detectControllers()

detectControllers

protected void detectControllers()
                          throws BeansException

Detect all the Controller and ThrowawayController beans registered in the ApplicationContext and register a URL path mapping for each one based on rules defined here.

Throws:

BeansException - if the controllers couldn't be obtained or registered

See Also:

generatePathMapping(Class)

registerControllers

protected void registerControllers(Class controllerType)
                            throws BeansException

Register all controllers of the given type, searching the current DispatcherServlet's ApplicationContext for matching beans.

Parameters:

controllerType - the type of controller to search for

Throws:

BeansException - if the controllers couldn't be obtained or registered

registerController

protected void registerController(String beanName)
                           throws BeansException,
                                  IllegalStateException

Register the controller with the given name, as defined in the current application context.

Parameters:

beanName - the name of the controller bean

Throws:

BeansException - if the controller couldn't be registered

IllegalStateException - if there is a conflicting handler registered

See Also:

ApplicationObjectSupport.getApplicationContext()

generatePathMapping

protected String generatePathMapping(Class controllerClass)

Generate the actual URL path for the given Controller class. Sub-classes may choose to customize the paths that are generated by overriding this method.