Ehcache缓存实例

我就是我 2021-09-30 00:36 392阅读 0赞

resources 资源中的  ehcache.xml   文件

<?xml version="1.0" encoding="UTF-8"?>
    <ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:noNamespaceSchemaLocation="http://ehcache.org/ehcache.xsd">
    
        
        <diskStore path="java.io.tmpdir/ehcache"/>
    
        
        <defaultCache
                maxEntriesLocalHeap="10000"
                eternal="false"
                timeToIdleSeconds="120"
                timeToLiveSeconds="120"
                maxEntriesLocalDisk="10000000"
                diskExpiryThreadIntervalSeconds="120"
                memoryStoreEvictionPolicy="LRU">
            <persistence strategy="localTempSwap"/>
        </defaultCache>
    
        
        <cache name="HelloWorldCache"
               maxElementsInMemory="1000"
               eternal="false"
               timeToIdleSeconds="5"
               timeToLiveSeconds="5"
               overflowToDisk="false"
               memoryStoreEvictionPolicy="LRU"/>
    </ehcache>

java实现

package com.ydy.test;
    
    import net.sf.ehcache.Cache;
    import net.sf.ehcache.CacheManager;
    import net.sf.ehcache.Element;
    
    import java.io.File;
    import java.io.IOException;
    
    /**
     * @author ydy
     * Create By ydy 
     */
    public class CacheTest {
        public static void main(String[] args) {
            // 1. 创建缓存管理器
            CacheTest cacheTest = new CacheTest();
            File file = null;
            try {
                String s = cacheTest.showURL();
                 file = new File(s+"/cache/ehcache.xml");
                if (file.exists()) {
                    System.out.println("true");
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
    
            CacheManager cacheManager = CacheManager.create(file.toString());
    
            // 2. 获取缓存对象
            Cache cache = cacheManager.getCache("HelloWordCache");
    
            // 3. 创建元素
            Element element = new Element("key1", "value1");
    
            // 4. 将元素添加到缓存
            cache.put(element);
    
            // 5. 获取缓存
            Element value = cache.get("key1");
            System.out.println(value);
            System.out.println(value.getObjectValue());
    
            // 6. 删除元素
            cache.remove("key1");
    
            Dog dog = new Dog("1", "taidi","2");
            Element element2 = new Element("taidi", dog);
            cache.put(element2);
            Element value2 = cache.get("taidi");
            Dog dog2 = (Dog) value2.getObjectValue();
            System.out.println(dog2);
    
            System.out.println(cache.getSize());
    
            // 7. 刷新缓存
            cache.flush();
    
            // 8. 关闭缓存管理器
            cacheManager.shutdown();
        }
    
        public String showURL() throws IOException {
            File f = new File(this.getClass().getResource("/").getPath());
            System.out.println(f);
            return f.toString();
        }
    }

转载于:https://www.cnblogs.com/yccmelody/p/8760512.html