EHCACHE Spring Annotations Core framework Java class library technical principles detailed explanation

Title: EHCACHE Spring Annotations Core framework Java -class library technical principles detailed explanation Summary: EHCACHE Spring Annotations Core is an excellent Java class library for integration with the Spring framework and providing annotated cache support.This article will explore the technical principles of the EHCACHE Spring AnnotationS Core framework and provide the corresponding Java code example. introduction: In most applications, cache is one of the important strategies to improve performance and response time.EHCACHE is a popular open source Java cache framework that provides configurable, plug -in cache solutions.The Spring framework is a powerful Java development framework, which provides many features to simplify application development.EHCACHE Spring Annotations Core framework is one of the integration solutions of EHCACHE and Spring. It uses Spring's annotation function and EHCACHE's powerful cache mechanism to provide simple and powerful cache support. Technical principle: The core technical principle of the EHCACACHE Spring Annotations Core framework is to use Spring's AOP (facing surface programming) function and custom annotation to achieve cache logic.By adding a specific annotation to the method, the return value of the method can be cached, and the cache result is directly returned in the subsequent call to avoid repeated calculations or query databases. Below is a simple example, showing how to use EHCACHE Spring Annotations Core framework to implement method level cache: @Service public class UserService { @Cacheable(cacheName = "userCache") public User getUserById(int id) { // Check the user from the database // ... return user; } @CacheEvict(cacheName = "userCache") public void updateUser(User user) { // Update user information in the database // ... } } In the above example, we added `@cacheable (cachename =" Usercache ")` `@cacheable (cachename =" userCache ") by adding it to cache the return value of the method.When subsequent calling the `GetuserbyID` method, if the same ID parameter is passed, the result is obtained directly from the cache without performing the actual logic of the method.Similarly, `@cacheevict (cachename =" usercache ")` `` annotations can be used to clear the cache. EHCACHE Spring Annotations Core framework is intercepted before and after using the Spring AOP function to intercept it before and after the method call, and determine whether the cache operation needs to be performed according to the configuration of the annotation.If the cache is required, the framework will generate a unique cache key according to the parameters of the call method, and use it to find the cache data. In addition, EHCACHE Spring Annotations Core also provides some other useful annotations, such as `@cacheput` (cover the method return value into the cache),@cacheEvict` (clear data from the cache) and` `` `` removed data) `` `Combination multiple cache solutions) and so on. in conclusion: This article details the JAVA -class library technical principles of the EHCACHE Spring Annotations Core framework.By combining Spring's AOP and custom annotations, the framework provides simple and flexible cache support.By using the annotations reasonably, developers can easily cache at the level level level to improve the performance and response speed of the application. Reference materials: -EHCACHE official website: https://www.ehcache.org/ -Spring official website: https://spring.io/ -EHCACHE Spring Annotations Core Github warehouse: https://github.com/ehcache/ehcache-spring-notations-Core