private net.sf.ehcache.Cache doGetCache(String cacheName) {
		net.sf.ehcache.Cache rawCache;
		if (this.cacheManager.cacheExists(cacheName)) {
			if (LOGGER.isDebugEnabled()) {
				LOGGER.debug("使用已有EHCache缓存[" + cacheName + "]");
			}
			rawCache = this.cacheManager.getCache(cacheName);
		} else {
			if (LOGGER.isDebugEnabled()) {
				LOGGER.debug("创建EHCache缓存[" + cacheName + "]");
			}
			rawCache = createCache(cacheName);
			this.cacheManager.addCache(rawCache);
		}

		return rawCache;
	}