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开发学院软件开发Java 开源缓存包 EHCache 全接触 阅读

开源缓存包 EHCache 全接触

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核心提示: 源码:importjava.io.Serializable;importnet.sf.ehcache.Cache;importnet.sf.ehcache.CacheManager;importnet.sf.ehcache.Element;/**##DESCRIBEehcache缓存操作DEMO

源码:

        import java.io.Serializable;
        import net.sf.ehcache.Cache;
        import net.sf.ehcache.CacheManager;
        import net.sf.ehcache.Element;
        /**
         #############################################################################
         # DESCRIBE ehcache 缓存操作DEMO
         # AUTHOR   悠~游
         # DATE     2006-7-10
         # COMPANY  FLX
         # PORJECT  ehcache-demo
         #############################################################################
         */
        public class Demo {
            
            static CacheManager manager= new CacheManager();
            /**
             *##############################################################################
             * 
             * @DESCRIBE    
             * @param args
             * @throws InterruptedException
             *                         
             *##############################################################################
             */
            public static void main(String[] args) throws InterruptedException {
                
                String[] cacheNames = manager.getCacheNames();
                System.out.println("读取的缓存列表为:");
                for(int i=0;i<cacheNames.length;i++){ 
                    System.out.println("-- "+(i+1)+" "+cacheNames[i]);
                }
                
                Cache cache = manager.getCache("cache1");
                Element element = new Element("key1", "value1");
                cache.put(element);
                
                element = cache.get("key1");
                Serializable value = element.getValue();
                System.out.println("序列化后的值为:"+value.toString());
                element = cache.get("key1");
                Object value1 = element.getObjectValue();
                System.out.println("未序列化的值为:"+value1.toString());
                
                int elementsInMemory = cache.getSize();
                System.out.println("得到缓存的对象数量:"+elementsInMemory);
                
                long elementsInMemory1 = cache.getMemoryStoreSize();
                System.out.println("得到缓存对象占用内存的数量:"+elementsInMemory1);
                
                long elementsInMemory2 = cache.getDiskStoreSize();
                System.out.println("得到缓存对对象占用磁盘的数量:"+elementsInMemory2);        
                
                int hits = cache.getHitCount();
                System.out.println("得到缓存读取的命中次数:"+hits);        
                
                int hits1 = cache.getMemoryStoreHitCount();
                System.out.println("得到内存中缓存读取的命中次数:"+hits1);        
                
                int hits2 =cache.getDiskStoreHitCount();
                System.out.println("得到磁盘中缓存读取的命中次数:"+hits2);        
                
                int hits3 = cache.getMissCountNotFound();
                System.out.println("得到缓存读取的丢失次数:"+hits3);        
                
                int hits4 = cache.getMissCountExpired();
                System.out.println("得到缓存读取的已经被销毁的对象丢失次数:"+hits4);    
            }
        }

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Tags:开源 缓存 EHCache

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