How to configure and manage the CAFFEINE CACHE framework in the Java class library

Configure and manage the Caffeine Cache framework in the Java library Caffeine Cache is a high -performance memory cache framework that provides a lot of configuration options that allows developers to customize according to their own needs.This article will introduce how to configure and manage the Caffeine Cache framework in the Java library and provide some Java code examples. Configure Caffeine Cache First, the dependence of Caffeine Cache needs to be added to the project.The following dependencies can be added to the configuration file of Maven or Gradle: Maven: <dependency> <groupId>com.github.ben-manes.caffeine</groupId> <artifactId>caffeine</artifactId> <version>2.9.1</version> </dependency> Gradle: groovy implementation 'com.github.ben-manes.caffeine:caffeine:2.9.1' After that, you can configure and manage the cache by creating an instance of a Caffeine Cache. import com.github.benmanes.caffeine.cache.Caffeine; import com.github.benmanes.caffeine.cache.Cache; public class CacheManager { private Cache<String, Object> cache; public CacheManager() { // Create a Caffeine Cache instance this.cache = Caffeine.newBuilder() .maximumsize (1000) // Set the maximum capacity of the cache .build(); } public void put(String key, Object value) { // Put the data into the cache cache.put(key, value); } public Object get(String key) { // Obtain data from the cache return cache.getIfPresent(key); } public void remove(String key) { // Remove data from the cache cache.invalidate(key); } } In the above sample code, we first created an instance of a `Caffeine`, and set up the cache maximum capacity of 1000 through the method of` Maximumsize () `.Then, put the data into the cache through the `put ()` `put ()` method of `Cache`, obtain data from the cache through the` GetifPreSent () "method, and remove the data from the cache through the` Invalidate () `method. Use caffeine cache In actual use, you can directly create and use the `Cachemanager` to manage the cache. public class Main { public static void main(String[] args) { CacheManager cacheManager = new CacheManager(); // Put in the data cacheManager.put("key1", "value1"); // retrieve data Object value = cacheManager.get("key1"); System.out.println (value); // Output: value1 // Remove data cacheManager.remove("key1"); // Get the data again value = cacheManager.get("key1"); System.out.println (value); // Output: null } } In the above sample code, we first created a `Cachemanager` instance, and put a key value pair into the cache through the` put () "method.Then, the data was obtained from the cache through the `Get ()` method and output it to the console.Then, the data in the cache is removed through the `Remove ()" method.Finally, the data was obtained again through the `Get ()` method, and it was found that the `null` has been returned. Summarize This article introduces how to configure and manage the Caffeine Cache framework in the Java library and provide the corresponding example code.The memory cache can be quickly and efficient through Caffeine Cache to improve the performance of the application.Developers can configure Caffeine Cache according to their needs to meet specific business scenarios.