import java.io.Serializable; import net.sf.ehcache.Cache; import net.sf.ehcache.CacheManager; import net.sf.ehcache.Element; /**** * * @author jqh * Ehcache的基本用法 * */ public class TestEhcache { public TestEhcache() { } /** * @param jqh * */ public static void main(String[] args) { //建立CacheManager方法1 //CacheManager manager = new CacheManager(); // CacheManager singletonManager = CacheManager.create(); // singletonManager.addCache("testCache"); // Cache test = singletonManager.getCache("testCache"); //建立CacheManager2 // CacheManager singletonManager = CacheManager.create(); // Cache memoryOnlyCache = new Cache("testCache", 5000, false, false, 5, 2); // manager.addCache(memoryOnlyCache); // Cache test = singletonManager.getCache("testCache"); //CacheManager singletonManager = CacheManager.create(); // singletonManager.removeCache("sampleCache1"); /* * 1.根據配置檔案來建立快取管理類。這裡用絕對路徑。我們用這種建立。靈活一點 */ CacheManager manager1 = new CacheManager("D://workspace//Test//src//ehcache.xml"); /* * 獲得快取的名字 */ String[] cacheNamesForManager1 = manager1.getCacheNames(); for(int i=0; i<cacheNamesForManager1.length; i++){ System.out.println(cacheNamesForManager1[i]); } //關閉快取管理類 //CacheManager.getInstance().shutdown(); //manager1.shutdown(); Cache cache = manager1.getCache("sampleCache1"); /* * 這裡假設我往快取裡存放一個Book類. * 這裡如果我們是存放物件，儘量讓它實現Serializable介面 */ Book b=new Book("Music Book"); Element element1=new Element("book",b); cache.put(element1); /* * update一個物件，把book的書名換為Sport Book */ Book b1=new Book("Sport Book"); Cache cache5 = manager1.getCache("sampleCache1"); cache.put(new Element("book",b1)); //獲得Serializable值,一般用於存放物件 Cache cache1 = manager1.getCache("sampleCache1"); Element element14 = cache.get("book"); Serializable value = element1.getValue(); Book bb=(Book)value; System.out.println(value.toString()); System.out.println(bb.getBookName()); //獲得一個沒有序列化的對像 Cache cache2 = manager1.getCache("sampleCache1"); Element element2 = cache2.get("book"); Object value2 = element2.getObjectValue(); System.out.println(value2.toString()); // /獲得當前Cache中element的數量（即存放物件的） int elementsInMemory = cache2.getSize(); //獲得記憶體中elements的數量 long elementsInMemory1 = cache2.getMemoryStoreSize(); System.out.println("數量分別為:"+elementsInMemory+"和："+elementsInMemory1); //remove一個物件 Cache cache3 = manager1.getCache("sampleCache1"); //這裡我把存放進去的book類給remove掉 cache.remove("book"); } } 附Book類： import java.io.Serializable; public class Book implements Serializable { private String bookName; public Book(String bookName) { this.bookName=bookName; } public String getBookName() { return bookName; } public void setBookName(String bookName) { this.bookName = bookName; } @Override public String toString() { return bookName; } }

例子中的ehcache.xml我們用其預設的指數去建立快取

可到這裡複製一個