(1)Create a
singleton CacheManager using defaults, then list caches.
CacheManager.create();
String[] cacheNames = CacheManager.getInstance().getCacheNames();
(2)Create a CacheManager
instance using defaults, then list caches.
CacheManager manager = new CacheManager();
String[] cacheNames =
manager.getCacheNames();
(3)Create two
CacheManagers, each with a different configuration, and list the caches in
each.
CacheManager manager1 = new
CacheManager("src/config/ehcache1.xml");
CacheManager manager2 = new
CacheManager("src/config/ehcache2.xml");
String[] cacheNamesForManager1 =
manager1.getCacheNames();
String[] cacheNamesForManager2 =
manager2.getCacheNames();
2
、
Cache
配置文件的加载方式
CacheManager
的构造函数如下：
(1)
无参
CacheManager manager = new CacheManager();
(2)
通过配置文件
CacheManager manager = new
CacheManager("src/config/ehcache.xml");
(3)
通过资源
URL url =
getClass().getResource("/anotherconfigurationname.xml");
CacheManager manager = new CacheManager(url);
(4)
通过输入流
InputStream fis = new FileInputStream(new
File("src/config/ehcache.xml").getAbsolutePath());
try {
CacheManager manager = new CacheManager(fis);
} finally {
fis.close();
}
3
、增加或删除
Cache
增加
Cache
有两种方式：
(1)
使用
CacheManager
的
addCache(String)
CacheManager singletonManager = CacheManager.create();
singletonManager.addCache("testCache");
Cache test = singletonManager.getCache("testCache");
(2)
新增一个
Cache
，然后加到
CacheManager
中，
Cache
在加入
CacheManager
之前是不能使用的
CacheManager singletonManager =
CacheManager.create();
Cache memoryOnlyCache = new Cache("testCache", 5000,
false, false, 5, 2);
manager.addCache(memoryOnlyCache);
Cache test = singletonManager.getCache("testCache");
从
CachaManager
中删除
Cache
CacheManager
singletonManager = CacheManager.create();
singletonManager.removeCache("sampleCache1");
4
、关闭
CacheManager
CacheManager
在使用之后应该关闭，虽然有自己的
shutdown hook
，建议在程序中手动关闭。
CacheManager.getInstance().shutdown();