org.springframework.web.servlet.handler

Class SimpleUrlHandlerMapping

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.handler.SimpleUrlHandlerMapping

All Implemented Interfaces:

Aware, ApplicationContextAware, Ordered, ServletContextAware, HandlerMapping

public class SimpleUrlHandlerMapping
extends AbstractUrlHandlerMapping

Implementation of the HandlerMapping interface to map from URLs to request handler beans. Supports both mapping to bean instances and mapping to bean names; the latter is required for non-singleton handlers.

The "urlMap" property is suitable for populating the handler map with bean references, e.g. via the map element in XML bean definitions.

Mappings to bean names can be set via the "mappings" property, in a form accepted by the java.util.Properties class, like as follows:
/welcome.html=ticketController /show.html=ticketController
The syntax is PATH=HANDLER_BEAN_NAME. If the path doesn't begin with a slash, one is prepended.

Supports direct matches (given "/test" -> registered "/test") and "*" matches (given "/test" -> registered "/t*"). Note that the default is to map within the current servlet mapping if applicable; see the "alwaysUseFullPath" property for details. For details on the pattern options, see the AntPathMatcher javadoc.

Author:

Rod Johnson, Juergen Hoeller

See Also:

setMappings(java.util.Properties), setUrlMap(java.util.Map<java.lang.String, ?>), BeanNameUrlHandlerMapping

Field Summary

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

logger

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

BEST_MATCHING_PATTERN_ATTRIBUTE, INTROSPECT_TYPE_LEVEL_MAPPING, MATRIX_VARIABLES_ATTRIBUTE, PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE, PRODUCIBLE_MEDIA_TYPES_ATTRIBUTE, URI_TEMPLATE_VARIABLES_ATTRIBUTE

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

Constructors

Constructor and Description
SimpleUrlHandlerMapping()

Method Summary

Modifier and Type	Method and Description
Map<String,?>	getUrlMap() Allow Map access to the URL path mappings, with the option to add or override specific entries.
void	initApplicationContext() Calls the registerHandlers(java.util.Map<java.lang.String, java.lang.Object>) method in addition to the superclass's initialization.
protected void	registerHandlers(Map<String,Object> urlMap) Register all handlers specified in the URL map for the corresponding paths.
void	setMappings(Properties mappings) Map URL paths to handler bean names.
void	setUrlMap(Map<String,?> urlMap) Set a Map with URL paths as keys and handler beans (or handler bean names) as values.

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

buildPathExposingHandler, exposePathWithinMapping, exposeUriTemplateVariables, getHandlerInternal, getHandlerMap, getRootHandler, lookupHandler, registerHandler, registerHandler, setLazyInitHandlers, setRootHandler, supportsTypeLevelMappings, validateHandler

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

adaptInterceptor, detectMappedInterceptors, extendInterceptors, getAdaptedInterceptors, getDefaultHandler, getHandler, getHandlerExecutionChain, getMappedInterceptors, getOrder, getPathMatcher, getUrlPathHelper, initInterceptors, setAlwaysUseFullPath, setDefaultHandler, setInterceptors, setOrder, setPathMatcher, setRemoveSemicolonContent, setUrlDecode, setUrlPathHelper

Methods inherited from class org.springframework.web.context.support.WebApplicationObjectSupport

getServletContext, getTempDir, getWebApplicationContext, initApplicationContext, initServletContext, 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

SimpleUrlHandlerMapping

public SimpleUrlHandlerMapping()

Method Detail

setMappings

public void setMappings(Properties mappings)

Map URL paths to handler bean names. This is the typical way of configuring this HandlerMapping.

Supports direct URL matches and Ant-style pattern matches. For syntax details, see the AntPathMatcher javadoc.

Parameters:

mappings - properties with URLs as keys and bean names as values

See Also:

setUrlMap(java.util.Map<java.lang.String, ?>)

setUrlMap

public void setUrlMap(Map<String,?> urlMap)

Set a Map with URL paths as keys and handler beans (or handler bean names) as values. Convenient for population with bean references.

Supports direct URL matches and Ant-style pattern matches. For syntax details, see the AntPathMatcher javadoc.

Parameters:

urlMap - map with URLs as keys and beans as values

See Also:

setMappings(java.util.Properties)

getUrlMap

public Map<String,?> getUrlMap()

Allow Map access to the URL path mappings, with the option to add or override specific entries.

Useful for specifying entries directly, for example via "urlMap[myKey]". This is particularly useful for adding or overriding entries in child bean definitions.

initApplicationContext

public void initApplicationContext()
                            throws BeansException

Calls the registerHandlers(java.util.Map<java.lang.String, java.lang.Object>) method in addition to the superclass's initialization.

Overrides:

initApplicationContext in class AbstractHandlerMapping

Throws:

ApplicationContextException - in case of initialization errors

BeansException - if thrown by ApplicationContext methods

See Also:

AbstractHandlerMapping.extendInterceptors(java.util.List), AbstractHandlerMapping.initInterceptors()

registerHandlers

protected void registerHandlers(Map<String,Object> urlMap)
                         throws BeansException

Register all handlers specified in the URL map for the corresponding paths.

Parameters:

urlMap - Map with URL paths as keys and handler beans or bean names as values

Throws:

BeansException - if a handler couldn't be registered

IllegalStateException - if there is a conflicting handler registered