package com.favccxx.favjcs;  import java.util.HashMap;  import java.util.Map;  import org.apache.jcs.JCS;  import org.apache.jcs.access.exception.CacheException;  import org.apache.log4j.Logger;  public class CacheFactory {                 private static Logger logger = Logger.getLogger(CacheFactory.class);                 private static Map<String, CacheWrapper> hashMapWrapper = new HashMap<String, CacheWrapper>();                 /**       * 获取一个名称为cacheName的缓存对象；如果不存在，返回null       * @param cacheName       * @return       */      public static CacheWrapper getCacheWrapper(String cacheName){          logger.debug("Get CacheWrapper, The cacheName is : " + cacheName);          return hashMapWrapper.get(cacheName);      }                 /**       * 清理所有的缓存       */      public static void clearCache(){          Object[] cacheArray = hashMapWrapper.keySet().toArray();          for(int i=0, l=cacheArray.length; i<l; i++){              try {                  String cacheName = cacheArray[i].toString();                  logger.debug("The cache is below to clear, And the name is : " + cacheName);                  CacheWrapper cacheWrapper = hashMapWrapper.get(cacheName);                  cacheWrapper.jcsCache.clear();              } catch (CacheException e) {                  logger.debug("Clear Cache Error!");                  e.printStackTrace();              }          }      }                 /**       * 获取一个名称为cacheName的缓存对象；如果不存在，则创建一个新的缓存对象       * @param cacheName       * @return       */      private static CacheWrapper createCacheWrapper(String cacheName){          JCS cache = null;          try{              cache = JCS.getInstance(cacheName);              return new CacheWrapper(cache);          }catch(CacheException e){              return null;          }      }                 /**       * 创建缓存对象       * @param cacheName       */      private static void createHashMapWrapper(String cacheName){          hashMapWrapper.put(cacheName, createCacheWrapper(cacheName));      }                 /**       * 初始化缓存对象       */      public static void initCache(){          logger.debug("By Start initCache Method, We create all the Cache Object");          createHashMapWrapper("coolBoyCache");  //      createHashMapWrapper("beautifulGirl");      }  }

5.3创建测试类TestCache，测试刚才的缓存对象。

package com.favccxx.favjcs.web;  import com.favccxx.favjcs.CacheFactory;  public class TestCache {      /**       * @param args       */      public static void main(String[] args) {          CacheFactory.initCache();          CacheFactory.getCacheWrapper("coolBoy");      }  }