Whirlcache Guide: Improve the performance of the Java class library
Whirlcache Guide: Improve the performance of the Java class library
Introduction:
Whirlycache is an open source cache library for improving the performance of the Java library.It stores frequently used data in memory to reduce the number of access to the rear -end storage system, thereby accelerating the response speed of the application.This article will introduce the installation, configuration and usage of Whirlycache, and provide some Java code examples.
Installation and configuration whirlycache:
1. Download the whitecache jar file (such as Whirllycache Jar) and add it to the project's classpath.
2. Add the related configuration options of WHIRLYCACHE to the configuration file of the project, including cache size and storage strategy.The following is an example configuration file:
import com.whirlycache.CacheConfiguration;
import com.whirlycache.CacheManager;
public class ExampleCache {
public static void main(String[] args) {
CacheConfiguration config = new CacheConfiguration();
Config.setmaxEntries (1000); // Set the maximum number of entries for cache
Config.SetevilityPolicy (EvictionPolicy.lru); // Set the cache out of the last time
Config.settimeout (3600); // Set the time for the expiration of 1 hour
CacheManager manager = CacheManager.getInstance();
manager.configure ("exmplecache", config); // Configure the cache name and configuration option
}
}
Use whitecache:
1. Get the WhirlCache instance: Use the `Getcache` method of cacheManager to obtain the WhirlCache instance.
import com.whirlycache.Cache;
import com.whirlycache.CacheManager;
Cache cache = CacheManager.getInstance().getCache("exampleCache");
2. Storage data: Use the `put` method to store the data into the cache.
cache.put("key1", "value1");
3. Get data: Use the `Get` method to get the data from the cache.
String value = (String) cache.get("key1");
4. Delete data: Use the `Remove` method to delete the data from the cache.
cache.remove("key1");
5. Clear cache: Use the `clear` method to clear all the data in the cache.
cache.clear();
6. More advanced usage: Whirlycache also supports other advanced usage, such as custom storage strategies, setting cache expiration time, etc.You can refer to more in -depth learning.
End words:
By using WHIRLYCACHE, the performance of the Java library can be greatly improved.It is a powerful and easy -to -use cache library, suitable for various types of Java applications.I hope the introduction of this article can help readers better understand and use Whirllycache.
Note: The above example code is only for demonstration purposes. In actual use, appropriate adjustments need to be made according to the specific scenarios.
