EhCache之初试

 

EhCache 是一个纯Java的进程内缓存框架，具有快速、精干等特点，是Hibernate中默认的CacheProvider。

 

详情参见其官网站：http://ehcache.org/  

具体文件下载网站：http://sourceforge.net/projects/ehcache/files/

 

下面将用实际的Demo分类演示介绍EhCache的初步使用：

• 单例CacheManager 创建
• 多个CacheManager 创建
• Cache的多种创建方式
• 对Cache的CRUD的操作
• Cache的统计信息
• 测试所用两个的ehcache.xml文件
  

[一]、单例CacheManager 创建

      1.代码示例：

Java代码

1. /**  
2.     * @blog http://sjsky.iteye.com <br>  
3.     *       单例CacheManager 创建  
4.     */  
5.    public static void testCreateSingleton() {   
6.        // Create a singleton CacheManager using defaults  
7.        System.out.println("Create a singleton CacheManager using defaults");   
8.        // CacheManager.create();   
9.        System.out.println("CacheManager.create()     :="  
10.                + CacheManager.getInstance());   
11.        System.out.println("cacheNames length := "  
12.                + CacheManager.getInstance().getCacheNames().length);   
13.        CacheManager.getInstance().shutdown();   
14.   
15.        System.out.println("=======================================");   
16.   
17.        // Create a singleton CacheManager using a configuration file  
18.        System.out   
19.                .println("Create a singleton CacheManager using a configuration file");   
20.        CacheManager singletonManager2 = CacheManager   
21.                .create("src/main/java/michael/hibernate/cache/ehcache/ehcache.xml");   
22.        System.out.println("CacheManager.create(file) :=" + singletonManager2);   
23.        System.out.println("cacheNames length := "  
24.                + singletonManager2.getCacheNames().length);   
25.        System.out   
26.                .println("CacheManager.getInstance() == singletonManager2 :: "  
27.                        + (CacheManager.getInstance() == singletonManager2));   
28.        singletonManager2.shutdown();   
29.        // CacheManager.getInstance().shutdown();  
30.   
31.        System.out.println("=======================================");   
32.   
33.        // Create a singleton CacheManager from a configuration resource in the  
34.        // classpath.   
35.        URL configurl = Thread.currentThread().getContextClassLoader()   
36.                .getResource("michael/hibernate/cache/ehcache/ehcache.xml");   
37.        CacheManager singletonManager3 = CacheManager.create(configurl);   
38.        System.out.println("CacheManager.create(url)  :=" + singletonManager3);   
39.   
40.        String[] cacheNames = singletonManager3.getCacheNames();   
41.        System.out.println("cacheNames length := " + cacheNames.length);   
42.        for (String name : cacheNames) {   
43.            System.out.println("name := " + name);   
44.        }   
45.        singletonManager3.shutdown();   
46.        // CacheManager.getInstance().shutdown();  
47.    }  

 /**     * @blog http://sjsky.iteye.com <br>     *       单例CacheManager 创建     */    public static void testCreateSingleton() {        // Create a singleton CacheManager using defaults        System.out.println("Create a singleton CacheManager using defaults");        // CacheManager.create();        System.out.println("CacheManager.create()     :="                + CacheManager.getInstance());        System.out.println("cacheNames length := "                + CacheManager.getInstance().getCacheNames().length);        CacheManager.getInstance().shutdown();        System.out.println("=======================================");        // Create a singleton CacheManager using a configuration file        System.out                .println("Create a singleton CacheManager using a configuration file");        CacheManager singletonManager2 = CacheManager                .create("src/main/java/michael/hibernate/cache/ehcache/ehcache.xml");        System.out.println("CacheManager.create(file) :=" + singletonManager2);        System.out.println("cacheNames length := "                + singletonManager2.getCacheNames().length);        System.out                .println("CacheManager.getInstance() == singletonManager2 :: "                        + (CacheManager.getInstance() == singletonManager2));        singletonManager2.shutdown();        // CacheManager.getInstance().shutdown();        System.out.println("=======================================");        // Create a singleton CacheManager from a configuration resource in the        // classpath.        URL configurl = Thread.currentThread().getContextClassLoader()                .getResource("michael/hibernate/cache/ehcache/ehcache.xml");        CacheManager singletonManager3 = CacheManager.create(configurl);        System.out.println("CacheManager.create(url)  :=" + singletonManager3);        String[] cacheNames = singletonManager3.getCacheNames();        System.out.println("cacheNames length := " + cacheNames.length);        for (String name : cacheNames) {            System.out.println("name := " + name);        }        singletonManager3.shutdown();        // CacheManager.getInstance().shutdown();    }

 

      2.运行结果：

Create a singleton CacheManager using defaults
CacheManager.create() :=net.sf.ehcache.CacheManager@e80842
cacheNames length := 4
=======================================
Create a singleton CacheManager using a configuration file
CacheManager.create(file) :=net.sf.ehcache.CacheManager@1bbf1ca
cacheNames length := 6
CacheManager.getInstance() == singletonManager2 :: true
=======================================
CacheManager.create(url) :=net.sf.ehcache.CacheManager@f9c40
cacheNames length := 6
name := sampleRepicatedCache2
name := sampleReplicatedCache1
name := sampleCache2
name := sampleCache1
name := sampleReplicatedCache3
name := sampleCache3

 

[二]、多个CacheManager 创建

      1.代码示例：

Java代码

1. /**  
2.      * @blog http://sjsky.iteye.com <br>  
3.      *       CacheManager 创建  
4.      */  
5.     public static void testCreateManager() {   
6.   
7.         // Create a CacheManager instance using defaults  
8.         CacheManager manager1 = new CacheManager();   
9.         System.out.println("new CacheManager()     := " + manager1);   
10.         String[] cacheNames = manager1.getCacheNames();   
11.         System.out.println("cacheNames length := " + cacheNames.length);   
12.         for (String name : cacheNames) {   
13.             System.out.println("name := " + name);   
14.         }   
15.         manager1.shutdown();   
16.   
17.         System.out.println("=======================================");   
18.   
19.         // Create a CacheManager instance using a configuration file  
20.         CacheManager manager2 = new CacheManager(   
21.                 "src/main/java/michael/hibernate/cache/ehcache/ehcache.xml");   
22.         System.out.println("new CacheManager(file) := " + manager2);   
23.         System.out.println("cacheNames length := "  
24.                 + manager2.getCacheNames().length);   
25.         manager2.shutdown();   
26.   
27.         System.out.println("=======================================");   
28.         // Create a singleton CacheManager from a configuration resource in the  
29.         // classpath.   
30.         URL configurl = Thread.currentThread().getContextClassLoader()   
31.                 .getResource("michael/hibernate/cache/ehcache/ehcache.xml");   
32.         CacheManager manager3 = new CacheManager(configurl);   
33.         System.out.println("new CacheManager(url)  := " + manager3);   
34.         System.out.println("cacheNames length := "  
35.                 + manager3.getCacheNames().length);   
36.         for (String name : manager3.getCacheNames()) {   
37.             System.out.println("name := " + name);   
38.         }   
39.         manager3.shutdown();   
40.   
41.     }  

/**     * @blog http://sjsky.iteye.com <br>     *       CacheManager 创建     */    public static void testCreateManager() {        // Create a CacheManager instance using defaults        CacheManager manager1 = new CacheManager();        System.out.println("new CacheManager()     := " + manager1);        String[] cacheNames = manager1.getCacheNames();        System.out.println("cacheNames length := " + cacheNames.length);        for (String name : cacheNames) {            System.out.println("name := " + name);        }        manager1.shutdown();        System.out.println("=======================================");        // Create a CacheManager instance using a configuration file        CacheManager manager2 = new CacheManager(                "src/main/java/michael/hibernate/cache/ehcache/ehcache.xml");        System.out.println("new CacheManager(file) := " + manager2);        System.out.println("cacheNames length := "                + manager2.getCacheNames().length);        manager2.shutdown();        System.out.println("=======================================");        // Create a singleton CacheManager from a configuration resource in the        // classpath.        URL configurl = Thread.currentThread().getContextClassLoader()                .getResource("michael/hibernate/cache/ehcache/ehcache.xml");        CacheManager manager3 = new CacheManager(configurl);        System.out.println("new CacheManager(url)  := " + manager3);        System.out.println("cacheNames length := "                + manager3.getCacheNames().length);        for (String name : manager3.getCacheNames()) {            System.out.println("name := " + name);        }        manager3.shutdown();    }

 

      2.运行结果：

new CacheManager() := net.sf.ehcache.CacheManager@17653ae
cacheNames length := 4
name := sampleCache2
name := org.hibernate.cache.UpdateTimestampsCache
name := sampleCache1
name := org.hibernate.cache.StandardQueryCache
=======================================
new CacheManager(file) := net.sf.ehcache.CacheManager@1ff0dde
cacheNames length := 6
=======================================
new CacheManager(url) := net.sf.ehcache.CacheManager@db4fa2
cacheNames length := 6
name := sampleRepicatedCache2
name := sampleReplicatedCache1
name := sampleCache2
name := sampleCache1
name := sampleReplicatedCache3
name := sampleCache3

 

[三]、Cache的多种创建方式

      1.代码示例： 

Java代码

1. /**  
2.  * @blog http://sjsky.iteye.com <br>  
3.  *       Create Cache  
4.  */  
5. public static void testCreateCache() {   
6.   
7.     System.out.println("add cache with defaults:");   
8.     CacheManager singletonManager = CacheManager.create();   
9.     singletonManager.addCache("myCache1");   
10.     Cache myCache1 = singletonManager.getCache("myCache1");   
11.     System.out.println(myCache1);   
12.   
13.     System.out.println("add cache with new Cache(arg1,arg2...):");   
14.     Cache myMemoryCache = new Cache("myMemoryCache", 5000, false, false, 5,   
15.             2);   
16.     singletonManager.addCache(myMemoryCache);   
17.     System.out.println(singletonManager.getCache("myMemoryCache"));   
18.   
19.     System.out.println("Create a Cache specifying its configuration:");   
20.     // Create a Cache specifying its configuration.  
21.     int maxElements = 100;   
22.     Cache myConfigCahce = new Cache(new CacheConfiguration("myConifgCahce",   
23.             maxElements).memoryStoreEvictionPolicy(   
24.             MemoryStoreEvictionPolicy.LFU).overflowToDisk(true).eternal(   
25.             false).timeToLiveSeconds(60).timeToIdleSeconds(30)   
26.             .diskPersistent(false).diskExpiryThreadIntervalSeconds(0));   
27.     singletonManager.addCache(myConfigCahce);   
28.     System.out.println(singletonManager.getCache("myConifgCahce"));   
29.   
30.     singletonManager.shutdown();   
31.   
32. }  

    /**     * @blog http://sjsky.iteye.com <br>     *       Create Cache     */    public static void testCreateCache() {        System.out.println("add cache with defaults:");        CacheManager singletonManager = CacheManager.create();        singletonManager.addCache("myCache1");        Cache myCache1 = singletonManager.getCache("myCache1");        System.out.println(myCache1);        System.out.println("add cache with new Cache(arg1,arg2...):");        Cache myMemoryCache = new Cache("myMemoryCache", 5000, false, false, 5,                2);        singletonManager.addCache(myMemoryCache);        System.out.println(singletonManager.getCache("myMemoryCache"));        System.out.println("Create a Cache specifying its configuration:");        // Create a Cache specifying its configuration.        int maxElements = 100;        Cache myConfigCahce = new Cache(new CacheConfiguration("myConifgCahce",                maxElements).memoryStoreEvictionPolicy(                MemoryStoreEvictionPolicy.LFU).overflowToDisk(true).eternal(                false).timeToLiveSeconds(60).timeToIdleSeconds(30)                .diskPersistent(false).diskExpiryThreadIntervalSeconds(0));        singletonManager.addCache(myConfigCahce);        System.out.println(singletonManager.getCache("myConifgCahce"));        singletonManager.shutdown();    }

 

      2.运行结果：

add cache with defaults:
[ name = myCache1 status = STATUS_ALIVE eternal = false overflowToDisk = true maxElementsInMemory = 100 maxElementsOnDisk = 100 memoryStoreEvictionPolicy = LRU timeToLiveSeconds = 120 timeToIdleSeconds = 120 diskPersistent = false diskExpiryThreadIntervalSeconds = 120 cacheEventListeners: net.sf.ehcache.statistics.LiveCacheStatisticsWrapper hitCount = 0 memoryStoreHitCount = 0 diskStoreHitCount = 0 missCountNotFound = 0 missCountExpired = 0 overflowToOffHeap = false maxMemoryOffHeap = null ]
add cache with new Cache(arg1,arg2...):
[ name = myMemoryCache status = STATUS_ALIVE eternal = false overflowToDisk = false maxElementsInMemory = 5000 maxElementsOnDisk = 0 memoryStoreEvictionPolicy = LRU timeToLiveSeconds = 5 timeToIdleSeconds = 2 diskPersistent = false diskExpiryThreadIntervalSeconds = 120 cacheEventListeners: net.sf.ehcache.statistics.LiveCacheStatisticsWrapper hitCount = 0 memoryStoreHitCount = 0 diskStoreHitCount = 0 missCountNotFound = 0 missCountExpired = 0 overflowToOffHeap = false maxMemoryOffHeap = null ]
Create a Cache specifying its configuration:
[ name = myConifgCahce status = STATUS_ALIVE eternal = false overflowToDisk = true maxElementsInMemory = 100 maxElementsOnDisk = 0 memoryStoreEvictionPolicy = LFU timeToLiveSeconds = 60 timeToIdleSeconds = 30 diskPersistent = false diskExpiryThreadIntervalSeconds = 120 cacheEventListeners: net.sf.ehcache.statistics.LiveCacheStatisticsWrapper hitCount = 0 memoryStoreHitCount = 0 diskStoreHitCount = 0 missCountNotFound = 0 missCountExpired = 0 overflowToOffHeap = false maxMemoryOffHeap = null ]

 

 

[四]、对Cache的CRUD的操作

      1.代码示例：

Java代码

1. /**  
2.   * @blog http://sjsky.iteye.com <br>  
3.   *       CRUD operations  
4.   */  
5.  public static void testCacheElementCRUD() {   
6.      CacheManager manager = null;   
7.      try {   
8.          manager = new CacheManager();   
9.          manager.addCache("MichaelInfo");   
10.   
11.          Cache myCache = manager.getCache("MichaelInfo");   
12.          System.out.println("manager.getCache :" + myCache);   
13.   
14.          Element element = new Element("blog", "http://sjsky.javaeye.com");   
15.          myCache.put(element);   
16.          System.out.println("cache put Element");   
17.          System.out.println("get Element value:= "  
18.                  + myCache.get("blog").getValue());   
19.          System.out.println("get Element objectvalue:= "  
20.                  + myCache.get("blog").getObjectValue());   
21.   
22.          System.out.println("update the Element");   
23.          myCache.put(new Element("blog", "http://sjsky.iteye.com"));   
24.          System.out.println("get Element value:= "  
25.                  + myCache.get("blog").getValue());   
26.          System.out.println("get Element objectvalue:= "  
27.                  + myCache.get("blog").getObjectValue());   
28.   
29.          myCache.put(new Element("array", new String[] { "test", "array" }));   
30.          System.out.println("array value:= "  
31.                  + myCache.get("array").getValue());   
32.          myCache.remove("array");   
33.          if (null == myCache.get("array")) {   
34.              System.out.println("remove Element 'array' successful.");   
35.          }   
36.      } catch (Exception e) {   
37.          e.printStackTrace(System.out);   
38.      } finally {   
39.          if (null != manager) {   
40.              manager.shutdown();   
41.          }   
42.      }   
43.  }  

   /**     * @blog http://sjsky.iteye.com <br>     *       CRUD operations     */    public static void testCacheElementCRUD() {        CacheManager manager = null;        try {            manager = new CacheManager();            manager.addCache("MichaelInfo");            Cache myCache = manager.getCache("MichaelInfo");            System.out.println("manager.getCache :" + myCache);            Element element = new Element("blog", "http://sjsky.javaeye.com");            myCache.put(element);            System.out.println("cache put Element");            System.out.println("get Element value:= "                    + myCache.get("blog").getValue());            System.out.println("get Element objectvalue:= "                    + myCache.get("blog").getObjectValue());            System.out.println("update the Element");            myCache.put(new Element("blog", "http://sjsky.iteye.com"));            System.out.println("get Element value:= "                    + myCache.get("blog").getValue());            System.out.println("get Element objectvalue:= "                    + myCache.get("blog").getObjectValue());            myCache.put(new Element("array", new String[] { "test", "array" }));            System.out.println("array value:= "                    + myCache.get("array").getValue());            myCache.remove("array");            if (null == myCache.get("array")) {                System.out.println("remove Element 'array' successful.");            }        } catch (Exception e) {            e.printStackTrace(System.out);        } finally {            if (null != manager) {                manager.shutdown();            }        }    }

 

      2.运行结果：

 

manager.getCache :[ name = MichaelInfo status = STATUS_ALIVE eternal = false overflowToDisk = true maxElementsInMemory = 100 maxElementsOnDisk = 100 memoryStoreEvictionPolicy = LRU timeToLiveSeconds = 120 timeToIdleSeconds = 120 diskPersistent = false diskExpiryThreadIntervalSeconds = 120 cacheEventListeners: net.sf.ehcache.statistics.LiveCacheStatisticsWrapper hitCount = 0 memoryStoreHitCount = 0 diskStoreHitCount = 0 missCountNotFound = 0 missCountExpired = 0 overflowToOffHeap = false maxMemoryOffHeap = null ]
cache put Element
get Element value:= http://sjsky.javaeye.com
get Element objectvalue:= http://sjsky.javaeye.com
update the Element
get Element value:= http://sjsky.iteye.com
get Element objectvalue:= http://sjsky.iteye.com
array value:= [Ljava.lang.String;@ec4a87
remove Element 'array' successful.

 

 

[五]、Cache的统计信息

      1.代码示例：

Java代码

1. /**  
2.  * @blog http://sjsky.iteye.com <br>  
3.  *       cache 信息统计  
4.  */  
5. public static void testCacheStatistics() {   
6.     CacheManager manager = null;   
7.     try {   
8.         manager = new CacheManager();   
9.         manager.addCache("MichaelInfo");   
10.   
11.         Cache myCache = manager.getCache("MichaelInfo");   
12.   
13.         myCache.put(new Element("username", "Michael"));   
14.         myCache.put(new Element("sex", "男"));   
15.         myCache.put(new Element("date", new Date()));   
16.         myCache.put(new Element("height", 172));   
17.         myCache.put(new Element("position", "cto"));   
18.         myCache.put(new Element("blog", "http://sjsky.iteye.com"));   
19.   
20.         System.out.println("cache size := " + myCache.getSize());   
21.         System.out.println("MemoryStoreSize := "  
22.                 + myCache.getMemoryStoreSize());   
23.         System.out   
24.                 .println("DiskStoreSize := " + myCache.getDiskStoreSize());   
25.   
26.         myCache.getStatistics().getDiskStoreObjectCount();   
27.         System.out.println("Caceh getStatistics:");   
28.         Statistics statistics = myCache.getStatistics();   
29.         System.out.println("CacheHits := " + statistics.getCacheHits());   
30.         System.out.println("CacheMisses := " + statistics.getCacheMisses());   
31.         System.out.println("InMemoryHits := "  
32.                 + statistics.getInMemoryHits());   
33.         System.out.println("InMemoryMisses := "  
34.                 + statistics.getInMemoryMisses());   
35.         System.out.println("OnDiskHits := " + statistics.getOnDiskHits());   
36.         System.out.println("OnDiskMisses := "  
37.                 + statistics.getOnDiskMisses());   
38.         System.out.println("MemoryStoreObjectCount := "  
39.                 + statistics.getMemoryStoreObjectCount());   
40.         System.out.println("DiskStoreObjectCount := "  
41.                 + statistics.getDiskStoreObjectCount());   
42.   
43.         Element element = myCache.get("username");   
44.         System.out.println("Element HitCount := " + element.getHitCount());   
45.   
46.     } catch (Exception e) {   
47.         e.printStackTrace(System.out);   
48.     } finally {   
49.         if (null != manager) {   
50.             manager.shutdown();   
51.         }   
52.     }   
53. }  

    /**     * @blog http://sjsky.iteye.com <br>     *       cache 信息统计     */    public static void testCacheStatistics() {        CacheManager manager = null;        try {            manager = new CacheManager();            manager.addCache("MichaelInfo");            Cache myCache = manager.getCache("MichaelInfo");            myCache.put(new Element("username", "Michael"));            myCache.put(new Element("sex", "男"));            myCache.put(new Element("date", new Date()));            myCache.put(new Element("height", 172));            myCache.put(new Element("position", "cto"));            myCache.put(new Element("blog", "http://sjsky.iteye.com"));            System.out.println("cache size := " + myCache.getSize());            System.out.println("MemoryStoreSize := "                    + myCache.getMemoryStoreSize());            System.out                    .println("DiskStoreSize := " + myCache.getDiskStoreSize());            myCache.getStatistics().getDiskStoreObjectCount();            System.out.println("Caceh getStatistics:");            Statistics statistics = myCache.getStatistics();            System.out.println("CacheHits := " + statistics.getCacheHits());            System.out.println("CacheMisses := " + statistics.getCacheMisses());            System.out.println("InMemoryHits := "                    + statistics.getInMemoryHits());            System.out.println("InMemoryMisses := "                    + statistics.getInMemoryMisses());            System.out.println("OnDiskHits := " + statistics.getOnDiskHits());            System.out.println("OnDiskMisses := "                    + statistics.getOnDiskMisses());            System.out.println("MemoryStoreObjectCount := "                    + statistics.getMemoryStoreObjectCount());            System.out.println("DiskStoreObjectCount := "                    + statistics.getDiskStoreObjectCount());            Element element = myCache.get("username");            System.out.println("Element HitCount := " + element.getHitCount());        } catch (Exception e) {            e.printStackTrace(System.out);        } finally {            if (null != manager) {                manager.shutdown();            }        }    }

 

      2.运行结果：

cache size := 6
MemoryStoreSize := 6
DiskStoreSize := 0
Caceh getStatistics:
CacheHits := 0
CacheMisses := 0
InMemoryHits := 0
InMemoryMisses := 0
OnDiskHits := 0
OnDiskMisses := 0
MemoryStoreObjectCount := 6
DiskStoreObjectCount := 0
Element HitCount := 1

 

[六]、测试所用两个的ehcache.xml文件

 

      1.classpath 下的： ehcache.xml （默认加载的配置文件）

Xml代码

1. <?xml version="1.0" encoding="UTF-8"?>  
2. <ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
3.          xsi:noNamespaceSchemaLocation="ehcache.xsd"  
4.          updateCheck="true" monitoring="autodetect"  
5.          dynamicConfig="true">  
6.   
7.     <diskStore path="java.io.tmpdir"/>  
8.   
9.     <transactionManagerLookup class="net.sf.ehcache.transaction.manager.DefaultTransactionManagerLookup"  
10.                               properties="jndiName=java:/TransactionManager" propertySeparator=";"/>  
11.   
12.     <cacheManagerEventListenerFactory class="" properties=""/>  
13.   
14.     <defaultCache  
15.             maxElementsInMemory="100"  
16.             eternal="false"  
17.             timeToIdleSeconds="120"  
18.             timeToLiveSeconds="120"  
19.             overflowToDisk="true"  
20.             diskSpoolBufferSizeMB="30"  
21.             maxElementsOnDisk="100"  
22.             diskPersistent="false"  
23.             diskExpiryThreadIntervalSeconds="120"  
24.             memoryStoreEvictionPolicy="LRU"  
25.             statistics="false"  
26.             />  
27.   
28.     <cache name="org.hibernate.cache.StandardQueryCache"  
29.         maxElementsInMemory="5"    
30.         eternal="false"    
31.         timeToLiveSeconds="120"  
32.         overflowToDisk="true" />  
33.   
34.     <cache name="org.hibernate.cache.UpdateTimestampsCache"  
35.         maxElementsInMemory="5000"    
36.         eternal="true"    
37.         overflowToDisk="true" />  
38.   
39.     <cache name="sampleCache1"  
40.            maxElementsInMemory="10000"  
41.            maxElementsOnDisk="1000"  
42.            eternal="false"  
43.            overflowToDisk="true"  
44.            diskSpoolBufferSizeMB="20"  
45.            timeToIdleSeconds="300"  
46.            timeToLiveSeconds="600"  
47.            memoryStoreEvictionPolicy="LFU"  
48.            transactionalMode="off"  
49.             />  
50.   
51.     <cache name="sampleCache2"  
52.            maxElementsInMemory="1000"  
53.            eternal="true"  
54.            overflowToDisk="false"  
55.            memoryStoreEvictionPolicy="FIFO"  
56.             />  
57. </ehcache>  

<?xml version="1.0" encoding="UTF-8"?><ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"         xsi:noNamespaceSchemaLocation="ehcache.xsd"         updateCheck="true" monitoring="autodetect"         dynamicConfig="true">    <diskStore path="java.io.tmpdir"/>    <transactionManagerLookup class="net.sf.ehcache.transaction.manager.DefaultTransactionManagerLookup"                              properties="jndiName=java:/TransactionManager" propertySeparator=";"/>    <cacheManagerEventListenerFactory class="" properties=""/>    <defaultCache            maxElementsInMemory="100"            eternal="false"            timeToIdleSeconds="120"            timeToLiveSeconds="120"            overflowToDisk="true"            diskSpoolBufferSizeMB="30"            maxElementsOnDisk="100"            diskPersistent="false"            diskExpiryThreadIntervalSeconds="120"            memoryStoreEvictionPolicy="LRU"            statistics="false"            />    <cache name="org.hibernate.cache.StandardQueryCache"    maxElementsInMemory="5"     eternal="false"     timeToLiveSeconds="120"    overflowToDisk="true" />    <cache name="org.hibernate.cache.UpdateTimestampsCache"    maxElementsInMemory="5000"     eternal="true"     overflowToDisk="true" />    <cache name="sampleCache1"           maxElementsInMemory="10000"           maxElementsOnDisk="1000"           eternal="false"           overflowToDisk="true"           diskSpoolBufferSizeMB="20"           timeToIdleSeconds="300"           timeToLiveSeconds="600"           memoryStoreEvictionPolicy="LFU"           transactionalMode="off"            />    <cache name="sampleCache2"           maxElementsInMemory="1000"           eternal="true"           overflowToDisk="false"           memoryStoreEvictionPolicy="FIFO"            /></ehcache>

 

 

      2.michael/hibernate/cache/ehcache/ehcache.xml（指定的配置文件）

Xml代码

1. <?xml version="1.0" encoding="UTF-8"?>  
2. <ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
3.          xsi:noNamespaceSchemaLocation="ehcache.xsd"  
4.          updateCheck="true" monitoring="autodetect"  
5.          dynamicConfig="true">  
6.   
7.     <diskStore path="java.io.tmpdir"/>  
8.   
9.     <transactionManagerLookup class="net.sf.ehcache.transaction.manager.DefaultTransactionManagerLookup"  
10.                               properties="jndiName=java:/TransactionManager" propertySeparator=";"/>  
11.   
12.   
13.     <cacheManagerEventListenerFactory class="" properties=""/>  
14.   
15.     <cacheManagerPeerProviderFactory  
16.             class="net.sf.ehcache.distribution.RMICacheManagerPeerProviderFactory"  
17.             properties="peerDiscovery=automatic,   
18.                         multicastGroupAddress=230.0.0.1,   
19.                         multicastGroupPort=4446, timeToLive=1"   
20.             propertySeparator=","  
21.             />  
22.     <cacheManagerPeerListenerFactory  
23.             class="net.sf.ehcache.distribution.RMICacheManagerPeerListenerFactory"/>  
24.   
25.       
26.     <defaultCache  
27.             maxElementsInMemory="10000"  
28.             eternal="false"  
29.             timeToIdleSeconds="120"  
30.             timeToLiveSeconds="120"  
31.             overflowToDisk="true"  
32.             diskSpoolBufferSizeMB="30"  
33.             maxElementsOnDisk="10000000"  
34.             diskPersistent="false"  
35.             diskExpiryThreadIntervalSeconds="120"  
36.             memoryStoreEvictionPolicy="LRU"  
37.             statistics="false"  
38.             />  
39.     <cache name="sampleCache1"  
40.            maxElementsInMemory="10000"  
41.            maxElementsOnDisk="1000"  
42.            eternal="false"  
43.            overflowToDisk="true"  
44.            diskSpoolBufferSizeMB="20"  
45.            timeToIdleSeconds="300"  
46.            timeToLiveSeconds="600"  
47.            memoryStoreEvictionPolicy="LFU"  
48.            transactionalMode="off"  
49.             />  
50.   
51.     <cache name="sampleCache2"  
52.            maxElementsInMemory="1000"  
53.            eternal="true"  
54.            overflowToDisk="false"  
55.            memoryStoreEvictionPolicy="FIFO"  
56.             />  
57.   
58.     <cache name="sampleCache3"  
59.            maxElementsInMemory="500"  
60.            eternal="false"  
61.            overflowToDisk="true"  
62.            timeToIdleSeconds="300"  
63.            timeToLiveSeconds="600"  
64.            diskPersistent="true"  
65.            diskExpiryThreadIntervalSeconds="1"  
66.            memoryStoreEvictionPolicy="LFU"  
67.             />  
68.   
69.     <cache name="sampleReplicatedCache1"  
70.            maxElementsInMemory="10"  
71.            eternal="false"  
72.            timeToIdleSeconds="100"  
73.            timeToLiveSeconds="100"  
74.            overflowToDisk="false">  
75.   
76.         <cacheEventListenerFactory  
77.                 class="net.sf.ehcache.distribution.RMICacheReplicatorFactory"/>  
78.         <bootstrapCacheLoaderFactory  
79.                 class="net.sf.ehcache.distribution.RMIBootstrapCacheLoaderFactory"/>  
80.     </cache>  
81.   
82.     <cache name="sampleRepicatedCache2"  
83.            maxElementsInMemory="10"  
84.            eternal="false"  
85.            timeToIdleSeconds="100"  
86.            timeToLiveSeconds="100"  
87.            overflowToDisk="false">  
88.         <cacheEventListenerFactory  
89.                 class="net.sf.ehcache.distribution.RMICacheReplicatorFactory"  
90.                 properties="replicateAsynchronously=false, replicatePuts=false,   
91.                             replicatePutsViaCopy=false, replicateUpdates=true,   
92.                             replicateUpdatesViaCopy=true, replicateRemovals=false"/>  
93.     </cache>  
94.   
95.     <cache name="sampleReplicatedCache3"  
96.            maxElementsInMemory="10"  
97.            eternal="false"  
98.            timeToIdleSeconds="100"  
99.            timeToLiveSeconds="100"  
100.            overflowToDisk="true">  
101.         <cacheEventListenerFactory  
102.                 class="net.sf.ehcache.distribution.RMICacheReplicatorFactory"  
103.                 properties="asynchronousReplicationIntervalMillis=200"/>  
104.     </cache>  
105. </ehcache>  

<?xml version="1.0" encoding="UTF-8"?><ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"         xsi:noNamespaceSchemaLocation="ehcache.xsd"         updateCheck="true" monitoring="autodetect"         dynamicConfig="true">    <diskStore path="java.io.tmpdir"/>    <transactionManagerLookup class="net.sf.ehcache.transaction.manager.DefaultTransactionManagerLookup"                              properties="jndiName=java:/TransactionManager" propertySeparator=";"/>    <cacheManagerEventListenerFactory class="" properties=""/>    <cacheManagerPeerProviderFactory            class="net.sf.ehcache.distribution.RMICacheManagerPeerProviderFactory"            properties="peerDiscovery=automatic,                        multicastGroupAddress=230.0.0.1,                        multicastGroupPort=4446, timeToLive=1"            propertySeparator=","            />    <cacheManagerPeerListenerFactory            class="net.sf.ehcache.distribution.RMICacheManagerPeerListenerFactory"/>       <defaultCache            maxElementsInMemory="10000"            eternal="false"            timeToIdleSeconds="120"            timeToLiveSeconds="120"            overflowToDisk="true"            diskSpoolBufferSizeMB="30"            maxElementsOnDisk="10000000"            diskPersistent="false"            diskExpiryThreadIntervalSeconds="120"            memoryStoreEvictionPolicy="LRU"            statistics="false"            />    <cache name="sampleCache1"           maxElementsInMemory="10000"           maxElementsOnDisk="1000"           eternal="false"           overflowToDisk="true"           diskSpoolBufferSizeMB="20"           timeToIdleSeconds="300"           timeToLiveSeconds="600"           memoryStoreEvictionPolicy="LFU"           transactionalMode="off"            />    <cache name="sampleCache2"           maxElementsInMemory="1000"           eternal="true"           overflowToDisk="false"           memoryStoreEvictionPolicy="FIFO"            />    <cache name="sampleCache3"           maxElementsInMemory="500"           eternal="false"           overflowToDisk="true"           timeToIdleSeconds="300"           timeToLiveSeconds="600"           diskPersistent="true"           diskExpiryThreadIntervalSeconds="1"           memoryStoreEvictionPolicy="LFU"            />    <cache name="sampleReplicatedCache1"           maxElementsInMemory="10"           eternal="false"           timeToIdleSeconds="100"           timeToLiveSeconds="100"           overflowToDisk="false">        <cacheEventListenerFactory                class="net.sf.ehcache.distribution.RMICacheReplicatorFactory"/>        <bootstrapCacheLoaderFactory                class="net.sf.ehcache.distribution.RMIBootstrapCacheLoaderFactory"/>    </cache>    <cache name="sampleRepicatedCache2"           maxElementsInMemory="10"           eternal="false"           timeToIdleSeconds="100"           timeToLiveSeconds="100"           overflowToDisk="false">        <cacheEventListenerFactory                class="net.sf.ehcache.distribution.RMICacheReplicatorFactory"                properties="replicateAsynchronously=false, replicatePuts=false,                            replicatePutsViaCopy=false, replicateUpdates=true,                            replicateUpdatesViaCopy=true, replicateRemovals=false"/>    </cache>    <cache name="sampleReplicatedCache3"           maxElementsInMemory="10"           eternal="false"           timeToIdleSeconds="100"           timeToLiveSeconds="100"           overflowToDisk="true">        <cacheEventListenerFactory                class="net.sf.ehcache.distribution.RMICacheReplicatorFactory"                properties="asynchronousReplicationIntervalMillis=200"/>    </cache></ehcache>

 

 

本文对EhCache的初步使用示例就讲到这，下面一节将讲一讲EhCache和Hibernate的集成应用示例：Hibernate+EhCache配置二级缓存的 （http://sjsky.iteye.com/blog/1312132）。

 

 

 

本文连接：http://sjsky.iteye.com/blog/1288257

 

 

 

转载请注明来自：Michael's blog @ http://sjsky.iteye.com