最新spring3.0 源码（一）

SPRING FRAMEWORK CHANGELOG ========================== http://www.springsource.org Changes in version 3.0.4 (2010-08-16) ------------------------------------- * support for Hibernate Core 3.6, Hibernate Validator 4.1, EclipseLink 2.1, EHCache 2.2 * OSGi manifest version range accepts EHCache 2.x as well * added "contentLength()" method to Resource abstraction * URL-based Resource variants introspect "last-modified" and "content-length" response headers * refined "exists()" check for UrlResource (HEAD request) and ClassPathResource (URL resolution) * ConversionService is able to deal with empty collections and nested collections (fixed regression) * ConversionService properly handles nested Resource arrays in Map values (fixed regression) * ConversionService does not accidentally use copy constructor for same type * fixed double ConversionFailedException nesting for ObjectToObjectConverter invocations * BeanWrapper preserves annotation information for individual array/list/map elements * Spring's constructor resolution consistently finds non-public multi-arg constructors * SpEL passes full collection type context (generics, annotations) to ConversionService * SpEL 'select last' operator now works consistently with maps * BeanWrapper/DataBinder's "autoGrowNestedPaths" works for Maps as well * fixed concurrency issue in TypedStringValue, showing for nested typed Maps in prototype beans * fixed WeakReferenceMonitor to never stop its monitoring thread if an entry has been registered * fixed CronTrigger to correctly parse month parts expressed as numbers (1-12 instead of 0-11) * TaskExecutorFactoryBean (as used by task:executor) exposes full ThreadPoolTaskExecutor type * JmsResourceHolder does not ignore IllegalStateException from locally synchronized transaction * fixed JMS CachingConnectionFactory to correctly cache a producer without fixed destination as well * DefaultMessageListenerContainer triggers Session commit even if no message has been received * DefaultMessageListenerContainer supports client id setting even for non-shared Connections * Spring's MessageEndpointFactory classes are now JCA 1.6 compliant as well * AbstractJaxWsServiceExporter supports "bindingType" bean property, overriding @BindingType * AbstractJaxWsServiceExporter supports "webServiceFeatures" bean property on JAX-WS 2.2 * JaxWsPortProxyFactoryBean takes "wsdlDocumentUrl", "namespaceUri" etc defaults from @WebService * Jaxb2Marshaller's "marshallerProperties" Map accepts any value type * SpringTemplateLoader for FreeMarker supports last-modified timestamp through Resource abstraction * HibernateJpaDialect correctly closes borrowed connections even for nested JDBC executions * DefaultJdoDialect supports JDO 3.0 query timeout facility (as supported by DataNucleus 2.1) * transaction names based on method id from most specific method (target class instead of interface) * added "validationMessageSource" to LocalValidatorFactoryBean, for Spring-based validation messages * Spring field error arguments include actually declared annotation attributes in alphabetical order * JSR-303 Pattern message resolvable through Spring MessageSource (despite special characters) * DispatcherServlet applies default view name translation to error views as well * mvc:annotation-driven reliably detects JSR-303 and JAXB2 in an OSGi environment as well * @MVC handler methods reliably resolve MultipartRequest arguments with HiddenHttpMethodFilter * fixed @PathVariable regression in combination with ConversionService usage on DataBinder * @CookieValue returns decoded cookie value in a Servlet environment (analogous to @RequestParam) * MVC HandlerExceptionResolvers prevent caching for exception views if preventResponseCaching=true * @ExceptionHandler works for inherited method and CGLIB proxies on Portlet controllers as well * Portlet @MVC's implicit render model will be updated at the end of the event phase * Portlet AbstractController consistently uses session mutex if "synchronizeOnSession" is active * PortletWrappingController supports Portlet 2.0 resource and event requests as well * fixed JSP EvalTag to render null result as empty String instead of "null" String * JSP EvalTag resolves "@myBeanName" references in expressions against the WebApplicationContext * added support for static resource serving: ResourceHttpRequestHandler, mvc:resources * revised DispatcherServlet's last-modified handling to properly work with scoped controllers Changes in version 3.0.3 (2010-06-15) ------------------------------------- * Spring autodetects JodaTime 1.3 or higher (as required), ignoring older JodaTime versions * clarified that Spring's Jackson support requires Jackson 1.3 or higher * JPA 2.0 support tested and supported with Hibernate 3.5.2 and OpenJPA 2.0.0 GA as well * revised VFS support for Spring's component scanning to work on JBoss AS 6.0.0 M3 as well * fixed URIEditor's URI construction to consider fragment as well * added default InputSourceEditor for SAX InputSource construction with a URL String as system id * CachedIntrospectionResults only caches GenericTypeAwarePropertyDescriptors if fully safe * revised BeanWrapper's exception wrapping to consistently handle ConversionExceptions * DefaultListableBeanFactory checks for alias circle on registerAlias (avoiding endless loop) * ConversionService is able to apply Converters to interface-based array elements * ConversionService fully supports conversion from String to MediaType now (through 'valueOf') * revised exception handling in ObjectToObjectConverter, avoiding InvocationTargetExceptions * a context ConversionService is able to override an ApplicationContext's resource editors * refined LifecycleProcessor exception handling, properly wrapping a start exception from a bean * revised DefaultLifecycleProcessor's handling of circular dependencies to avoid stack overflow * fixed constructor argument caching for prototypes with multiple constructor matches * specific detection of CGLIB subclasses in order to properly handle CGLIB interfaces * registerDependentBean resolves to the canonical bean name in order to handle alias references * fixed registerResolvableDependency mechanism to correctly handle non-serializable factory objects * added "expose-proxy" attribute to aop namespace (enforcing AopContext proxy exposure with CGLIB) * revised AbstractInterceptorDrivenBeanDefinitionDecorator for further alignment with auto-proxying * BeanDefinitionVisitor/PropertyPlaceholderConfigurer finds and resolves values in arrays as well * property placeholders can deal with nested expressions which happen to use the same suffix * SpEL's Elvis operator is able to deal with #{${myProp}?:defaultValue} case if myProp is empty * introduced EmbeddedValueResolverAware callback interface for convenient placeholder resolution * @Transactional qualifier value matches against @Qualifier annotations on @Bean methods as well * setTransactionIsolation on JDBC Connection only called when actually necessary (for PostgreSQL) * added limit for parsed SQL cache to NamedParameterJdbcTemplate (default is 256; configurable) * CachingConnectionFactory detects destination equality for WebSphere MQ as well (using toString) * DefaultPersistenceUnitManager's getPersistenceUnitInfo method has 2.5 compatible signature again * DefaultMessageListenerContainer reacts to maxConcurrentConsumers reduction for long-lived tasks * added "idleConsumerLimit" bean property to DefaultMessageListenerContainer (default is 1) * AsyncAnnotationBeanPostProcessor consistently adds @Async processing as first Advisor in the chain * ScheduledTaskRegistrar (as used for @Scheduled processing) properly shuts down its default executor * CronTrigger defensively protects itself against accidental re-fires if a task runs too early * MailSendException includes all messages as failed messages in case of a connect failure * added support for JAX-WS 2.1 WebServiceFeatures to JaxWsPortClientInterceptor/PortProxyFactoryBean