Відео

Read here: www.concretepage.com/spring/spring-expression-language-example Spring Expression Language is passed in #{ expression-string } format in both cases, annotation configuration as well as XML configuration.

Read here: www.concretepage.com/spring/registershutdownhook_spring registerShutdownHook() and close() are methods of Spring ConfigurableWebApplicationContext class. registerShutdownHook() method registers a shutdown hook named SpringContextShutdownHook with the JVM runtime. close() method will close application context at the time it is invoked destroying all beans in its bean factory.

Read here: www.concretepage.com/spring/spring-transactional To enable @Transactional annotation, use @EnableTransactionManagement in conjuction with @Configuration. If we are using XML configuration, then use tx:annotation-driven namespace.

Read here: www.concretepage.com/spring/spring-hibernatetemplate Spring HibernateTemplate is a helper class that simplifies Hibernate data access code. It automatically converts HibernateExceptions into DataAccessExceptions.

Link: www.concretepage.com/spring-boot/spring-boot-configure-mysql Caused by: java.lang.NullPointerException: Cannot invoke "java.util.Map.get(Object)" because "this.serverVariables" is null

Read here: www.concretepage.com/spring/example_enablescheduling_spring www.concretepage.com/spring/spring-scheduled-annotation

Read here: www.concretepage.com/spring/example_enablecaching_spring The @EnableCaching enables annotation-driven cache management capability. The @EnableCaching is used with @Configuration classes. The @EnableCaching invokes @CacheResult, @CachePut, @CacheRemove, @CacheRemoveAll annotations.

Read here: www.concretepage.com/spring/spring-propertysource-annotation Using @PropertySource, we can load the entries of .properties file to Spring’s Environment. We can fetch values of .properties file using @Value and Environment .

Read here: www.concretepage.com/spring/cacheevict_spring Spring @CacheEvict annotation is used to evict cache. The @CacheEvict is used at method level. The @Cacheable annotation sets the value in cache and on the contrary @CacheEvict evicts the cache

Read here: www.concretepage.com/spring/spring-dependson-annotation The @DependsOn annotation specifies the beans on which the current bean depends. All beans specified by the @DependsOn annotation are guaranteed to be created by container before this bean.

Read here: www.concretepage.com/spring/example_primary_spring @Primary annotation is used to make a bean preferable when multiple beans are qualified to autowire a single-valued dependency.

Read here: www.concretepage.com/spring/spring-lazy-annotation Spring @Lazy annotation indicates that a bean will be lazily initialized. The @Lazy can be annotated with @Component, @Configuration or on methods annotated with @Bean.

Read here: www.concretepage.com/spring/example_import_spring Spring @Import annotation imports one or more @Configuration classes. The @Import annotation is equivalent to import element in Spring XML.

Read here: www.concretepage.com/spring/example_importresource_spring Spring @ImportResource annotation imports the XML configurations in JavaConfig based applications. The class annotated with @Configuration can use @ImportResource annotation to load XML configurations.

util:properties in Spring XML

Spring idref XML Configuration

Spring lazy-init XML Configuration

Spring c-namespace XML Configuration

Spring p-namespace XML Configuration

How to Inject Null and Empty Values in Spring XML

Collection Merging in Spring XML

Inject List, Set, Map and Properties Collection in Spring XML

Inner Beans in Spring XML Configuration

Alias element in Spring XML

PropertyOverrideConfigurer in Spring

BeanPostProcessor in Spring

BeanClassLoaderAware in Spring

BeanNameAware in Spring

ApplicationContextAware in Spring