In -depth understanding of the technical principles of EHCACHE Spring Annotations Core framework

EHCACHE is a powerful open source cache framework that is used with Spring Annotations Core framework, which can provide fast, flexible and high -performance cache function.By understanding the technical principles of EHCACHE Spring Annotations Core framework, you can better understand how to use these two frameworks in Java applications to optimize memory management and improve system performance. EHCACHE is a Java -based open source cache framework that can store data in the application memory to provide fast access and response.The core idea of the EHCACHE framework is to store data that are frequently used and needed frequently in high -speed cache, thereby reducing the number of database access and network transmission, thereby improving the performance and response speed of the application. EHCACHE provides a variety of cache strategies and cache management methods, one of which is achieved through the Spring Annotations Core framework.Spring Annotations Core is an annotation -based framework. It is closely integrated with the Spring framework, which can easily use annotations in Spring applications to manage the EHCACHE cache. To understand the technical principles of the EHCACHE Spring Annotations Core framework, we first need to configure the EHCACHE cache manager in the Spring application.In the Java code, you can configure it in the following way: @Configuration @EnableCaching public class AppConfig extends CachingConfigurerSupport { @Bean public EhCacheManagerFactoryBean ehCacheManagerFactoryBean() { EhCacheManagerFactoryBean cacheManagerFactoryBean = new EhCacheManagerFactoryBean(); cacheManagerFactoryBean.setConfigLocation(new ClassPathResource("ehcache.xml")); cacheManagerFactoryBean.setShared(true); return cacheManagerFactoryBean; } @Bean @Override public CacheManager cacheManager() { return new EhCacheCacheManager(ehCacheManagerFactoryBean().getObject()); } } In the above code, first use the @Configuration annotation to mark the class as the configuration class, and then use the @EnableCaching annotation to enable the cache function.Then, configure an EHCACHEMANAGERFACTORYBEAN through @Bean annotation to create an EHCACHE cache manager, and set the position and sharing mode of the cache configuration file.Finally, by rewriting the cacheManager method in the CachmentConfigurersupport class, a EHCACHECACACACHEMANAGER is created as a cache manager. Once the cache manager configuration is completed, you can use annotations to manage the cache in Spring applications.By adding @cacheable annotations to the method, you can indicate that Spring cache the return value of the method to improve the performance of the same request for the next time.For example: @Service public class UserService { @Cacheable(value = "userCache", key = "#id") public User getUserById(int id) { // Obtain user information from the database or other data sources return userRepository.getUserById(id); } } In the above examples, the return value of the getuserByid method through the @cacheable annotation is in the cache called "usercache", and the method parameter ID is used as the cache key.When the current request arrives, if the same ID of the same ID already exists in the cache, Spring will directly return to the user object in the cache without having to query the database again. In addition to @cacheable annotations, EHCACHE Spring Annotations Core also provides other annotations to manage cache, such as @cacheevict to remove data from the cache,@cachePut to add data to the cache, and so on.By using these annotations, you can control and manage the cache of EHCACHE very flexibly. In summary, by understanding the technical principles of the EHCACHE Spring Annotations Core framework, you can make full use of the powerful functions of the EHCACHE and Spring framework to improve the performance and response speed of the application.The combination of these frameworks makes the cache management easier and efficient, and can also maintain the simplicity and maintenance of the code.I hope this article will help you understand the technical principles of EHCACHE Spring Annotations Core framework!