synchronized同步对象锁

package com.system.util;import com.common.Constants; import com.util.Cache;/*** 创建同步对象锁* * @author jqlin**/ public class SyncObject {/**唯一对象*/private Object obj;public SyncObject(Object obj) {this.obj = obj;}/*** 获取同步对象锁* * @param cache 缓存对象* @param preCacheKey 唯一标识缓存的ID* @param obj 唯一对象* @return*/public static synchronized SyncObject getSyncObject(Cache cache, String preCacheKey, Object obj) {SyncObject sysObject = cache.get(preCacheKey + obj);if (sysObject == null) {sysObject = new SyncObject(obj);cache.put(preCacheKey + obj, sysObject);}return sysObject;}public Object getObj() {return obj;}public void setObj(Object obj) {this.obj = obj;}public static void main(String[] args) {Cache cache = null;String userId = null;SyncObject syncOrder = SyncObject.getSyncObject(cache, Constants.DQ_REDEMP_CACHE, userId);synchronized (syncOrder) {//todo }} }

 

转载于:https://www.cnblogs.com/linjiqin/p/5590220.html

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