spring緩存ehcache使用

spring-mvc.xml

ehcache-local.xml

<?xml version="1.0" encoding="UTF-8"?>
<ehcache updateCheck="false" name="defaultCache">

	<diskStore path="../temp/hzinfo/ehcache" />

	<!-- 預設緩存配置. -->
	<defaultCache maxEntriesLocalHeap="100" eternal="false"
		timeToIdleSeconds="300" timeToLiveSeconds="0" overflowToDisk="true"
		maxEntriesLocalDisk="100000" />

	<!--接線方式緩存 -->
	<cache name="LineType" maxEntriesLocalHeap="100" eternal="true"
		   overflowToDisk="true" />

	<!--行業類型緩存-->
	<cache name="IndustryType" maxEntriesLocalHeap="100" eternal="true"
		   overflowToDisk="true" />

	<!-- 裝置數緩存 -->
	<cache name="DeviceTreeCache" maxEntriesLocalHeap="100" eternal="true"
		   overflowToDisk="true" />

</ehcache>
           

代碼中運用@Cache注解

@Override
    @Cacheable(value = "DeviceTreeCache", key = "'deviceCache-'+#stationId")
    public List selectEquList(String stationId) {
    	if (null == stationId || stationId.isEmpty()) {
			stationId = Constants.defaultStationId;
		}
       return genTree(stationId);
    }

    @Override
    @CachePut(value = "DeviceTreeCache", key = "'deviceCache-'+#stationId")
    public List updEquList(String stationId) {
    	if (null == stationId || stationId.isEmpty()) {
			stationId = Constants.defaultStationId;
		}
       return genTree(stationId);
    }
           

CacheUtils工具類

import com.hnac.hzinfo.common.utils.SpringContextHolder;

import net.sf.ehcache.Cache;
import net.sf.ehcache.CacheManager;
import net.sf.ehcache.Element;

public class CacheUtils {

    private static CacheManager cacheManager = ((CacheManager)SpringContextHolder.getBean("cache"));

    /**
     * 擷取緩存
     * @param cacheName
     * @param key
     * @return
     */
    public static Object get(String cacheName, Object key) {
        Element element = getCache(cacheName).get(key);
        return element==null?null:element.getObjectValue();
    }

    /**
     * 寫入緩存
     * @param cacheName
     * @param key
     * @param value
     */
    public static void put(String cacheName, Object key, Object value) {
        Element element = new Element(key, value);
        getCache(cacheName).put(element);
    }

    /**
     * 從緩存中移除
     * @param cacheName
     * @param key
     */
    public static void remove(String cacheName, Object key) {
        getCache(cacheName).remove(key);
    }

    /**
     * 獲得一個Cache，沒有則建立一個。
     * @param cacheName
     * @return
     */
    private static Cache getCache(String cacheName){
        Cache cache = cacheManager.getCache(cacheName);
        if (cache == null){
            cacheManager.addCache(cacheName);
            cache = cacheManager.getCache(cacheName);
            cache.getCacheConfiguration().setEternal(true);
        }
        return cache;
    }

    public static CacheManager getCacheManager() {
        return cacheManager;
    }

}