。。。

src/main/java/cn/com/qmth/examcloud/support/cache/CacheHelper.java

@@ -30,15 +30,22 @@ public class CacheHelper {
 		return getRedisClient().get(key, AppCacheBean.class);
 	}
 
+	/**
+	 * 获取系统属性<br>
+	 *
+	 * @author WANGWEI
+	 * @param propKey
+	 * @return
+	 */
 	public static SysPropertyCacheBean getSysProperty(String propKey) {
 		String key = "$_SYS_PROP:" + propKey;
 		SysPropertyCacheBean sysPropertyCacheBean = getRedisClient().get(key,
 				SysPropertyCacheBean.class);
 		if (null == sysPropertyCacheBean) {
+			// redis未缓存时,调用触发器
 			getCacheObjectTrigger().loadSysProperty(propKey);
 			sysPropertyCacheBean = getRedisClient().get(key, SysPropertyCacheBean.class);
 		}
-
 		return sysPropertyCacheBean;
 	}