Spring-利用InitializingBean接口和zookeeper实现项目初始化缓存以及同步监听

不念不忘少年蓝@ 2022-05-29 02:59 139阅读 0赞

### 文章目录 ###

*  Spring-利用InitializingBean接口和zookeeper实现项目初始化缓存以及同步监听
 *   *   *   *  1.先贴出几个需要用到的工具类
             *   *  ZkClientUtils
                 *  WorkerPool
                 *  IUpdateLocalCacheData
                 *  RetryRecord
                 *  Node
             *  2.实现InitializingBean接口的Bean
             *  3.CacheDataSynServerHandle
             *  4.ZkWatcherUtils
             *   *  5.LoadData
             *  6.spring.xml

# Spring-利用InitializingBean接口和zookeeper实现项目初始化缓存以及同步监听 #

>  在我们项目开发过程中，不时需要项目启动初始化一些项目的数据到内存或者缓存中，实现InitializingBean接口达到项目初始化缓存数据，利用zookeeper监听实现数据同步。

#### 1.先贴出几个需要用到的工具类 ####

##### ZkClientUtils #####

import com.ithzk.common.PropertiesUtil;
    import org.apache.curator.framework.CuratorFramework;
    import org.apache.curator.framework.CuratorFrameworkFactory;
    import org.apache.curator.retry.RetryNTimes;
    import org.apache.log4j.Logger;
    import org.apache.zookeeper.data.Stat;
    
    import java.util.List;
    
    /** * zookeeper客户端工具类 * @author hzk * @date 2018/3/15 */
    public class ZkClientUtils { 
    
        private static final Logger logger = Logger.getLogger(ZkClientUtils.class);
    
        private CuratorFramework client;
    
        private String ZK_ADDRESS;
    
        public ZkClientUtils() { 
            ZK_ADDRESS = PropertiesUtil.getValueByBundle("config","zk.address");
            this.client = CuratorFrameworkFactory.newClient(ZK_ADDRESS,new RetryNTimes(10, 5000));
            this.client.start();
        }
    
        public CuratorFramework getClient(){ 
            return this.client;
        }
    
        /** * 创建节点 * @param zkPath 路径 * @param data 数据 * @return */
        public boolean create(String zkPath,String data){ 
            try { 
                // 如果父节点不存在，则在创建节点的同时创建父节点
                client.create().creatingParentsIfNeeded().forPath(zkPath, data.getBytes("utf-8"));
                return true;
            } catch (Exception e) { 
                e.printStackTrace();
                logger.error("----- create zk node error:"+e.getMessage());
            }
            return false;
        }
    
        /** * 获取节点值 * @param zkPath 路径 * @return */
        public String getZnodeData(String zkPath){ 
            try { 
                byte[]  datas = client.getData().forPath(zkPath);
                return new String(datas,"utf-8");
            } catch (Exception e) { 
                e.printStackTrace();
                logger.error("----- get zk node data error:"+e.getMessage());
            }
            return null;
        }
    
        /** * 设置节点值 * @param zkPath 路径 * @param data 数据 * @return */
        public boolean set(String zkPath,String data){ 
            try { 
                if(isExists(zkPath)){ 
                    client.setData().forPath(zkPath, data.getBytes("utf-8"));
                }else { 
                    create(zkPath, data);
                }
                return true;
            } catch (Exception e) { 
                e.printStackTrace();
                logger.error("----- set zk node data error:"+e.getMessage());
            }
            return false;
        }
    
        /** * 检验节点是否存在 * @param zkPath 路径 * @return * @throws Exception */
        public boolean isExists(String zkPath) throws Exception{ 
            Stat stat = client.checkExists().forPath(zkPath);
            return null != stat;
        }
    
        /** * 获取子节点列表 * @param zkPath 路径 * @return */
        public List<String> list(String zkPath){ 
            try { 
                return client.getChildren().forPath(zkPath);
            } catch (Exception e) { 
                e.printStackTrace();
                logger.error("----- get zk children node list error:"+e.getMessage());
            }
            return null;
        }
        public void close(){ 
            client.close();
        }
    
    }

##### WorkerPool #####

import java.util.concurrent.*;
    
    public class WorkerPool { 
    
    	/** * 线程池执行任务 * @param command */
    	public void exec(Runnable command){ 
    		ThreadFactory threadFactory = Executors.defaultThreadFactory();
    		ArrayBlockingQueue queue = new ArrayBlockingQueue<Runnable>(2);
            ThreadPoolExecutor executorPool = new ThreadPoolExecutor(2, 4, 10, TimeUnit.SECONDS, queue, threadFactory);
            executorPool.execute(command);
    	}
    }

##### IUpdateLocalCacheData #####

/** * @author hzk * @date 2018/3/15 */
    public interface IUpdateLocalCacheData { 
    
        void change(Node node);
    }

##### RetryRecord #####

/** * 缓存重试统计类 * @author hzk * @date 2018/3/16 */
    public class RetryRecord { 
    
        private String lastRecordTime;
    
        private Integer retryCount;
    
        public RetryRecord(String lastRecordTime, Integer retryCount) { 
            this.lastRecordTime = lastRecordTime;
            this.retryCount = retryCount;
        }
    
        public String getLastRecordTime() { 
            return lastRecordTime;
        }
    
        public void setLastRecordTime(String lastRecordTime) { 
            this.lastRecordTime = lastRecordTime;
        }
    
        public Integer getRetryCount() { 
            return retryCount;
        }
    
        public void setRetryCount(Integer retryCount) { 
            this.retryCount = retryCount;
        }
    }

##### Node #####

public class Node { 
    	private String path;
    	private String data;
    	
    	public Node(String path,String data) { 
    		this.path = path;
    		this.data = data;
    	}
    	public Node() { 
    	}
    	
    	public String getPath() { 
    		return path;
    	}
    	public void setPath(String path) { 
    		this.path = path;
    	}
    	public String getData() { 
    		return data;
    	}
    	public void setData(String data) { 
    		this.data = data;
    	}
    	@Override
    	public String toString() { 
    		return "Node [path=" + path + ", data=" + data + "]";
    	}
    	
    	
    }

#### 2.实现InitializingBean接口的Bean ####

package com.ithzk.common.listener;
    
    import com.ithzk.common.zk.CacheDataSynServerHandle;
    import org.apache.log4j.Logger;
    import org.springframework.beans.factory.InitializingBean;
    import org.springframework.web.context.ServletContextAware;
    
    import javax.servlet.ServletContext;
    
    /** * @author hzk * @date 2018/3/15 */
    public class InitDataListener implements InitializingBean,ServletContextAware { 
    
        private static final Logger logger = Logger.getLogger(InitDataListener.class);
    
        public static ServletContext servletContext;
    
        @Override
        public void setServletContext(ServletContext arg0) { 
            InitDataListener.servletContext = arg0;
        }
    
        @Override
        public void afterPropertiesSet() throws Exception { 
            //初始化数据 加载数据到本地缓存
            logger.info("----------------- init cache data.. -----------------------");
            new CacheDataSynServerHandle().loadLocal();
    
            //注册zk监听节点变化 同步数据
            new CacheDataSynServerHandle().start();
            logger.info("----------------- init cache data complete -----------------------");
        }
    }

#### 3.CacheDataSynServerHandle ####

import com.ithzk.common.BeanFactoryUtil;
    import com.ithzk.common.Constants;
    import com.ithzk.common.JsonUtil;
    import com.ithzk.common.PropertiesUtil;
    import com.ithzk.common.dic.LoadData;
    import com.ithzk.common.zk.ifc.IUpdateLocalCacheData;
    import com.ithzk.dto.out.BaseResponse;
    import com.ithzk.dto.out.DictionaryResponse;
    import com.ithzk.dto.out.PartnerResponse;
    import com.ithzk.ifc.DictionaryIfc;
    import com.ithzk.ifc.PartnerIfc;
    import com.ithzk.common.Detect;
    import org.apache.log4j.Logger;
    import org.springframework.stereotype.Component;
    
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    
    /** * 服务端初始化缓存数据 同步缓存数据 * @author hzk * @date 2018/3/15 */
    @Component
    public class CacheDataSynServerHandle { 
    
        private static final Logger logger = Logger.getLogger(CacheDataSynServerHandle.class);
    
        private String ZK_ADDRESS;
    
        /** * 初始化CacheDataSynServerHandle */
        public void start(){ 
            new WorkerPool().exec(new Runnable() { 
    
                @Override
                public void run() { 
                    new CacheDataSynServerHandle().init();
                }
            });
        }
    
        /** * 注册监听 */
        public void init() { 
            ZK_ADDRESS = PropertiesUtil.getValueByBundle("config","zk.address");
            logger.info("------register watch path:"+ZK_ADDRESS);
            //添加监听
            ZkWatcherUtils zkWatcherUtils = new ZkWatcherUtils();
            try { 
                UpdateLocalCacheData change = new UpdateLocalCacheData();
                zkWatcherUtils.addWatch(Constants.AbstractZkNodePath.ZK_DICTIONRAY_PATH,change);
            } catch (Exception e) { 
                e.printStackTrace();
                logger.error("------register watch error :"+e.getMessage());
            }
    
            loadZKData();
        }
    
        /** * 检查zk中是否有数据 * 没有则初始化zk字典数据 */
        private void loadZKData(){ 
            ZkClientUtils zkClientUtils = new ZkClientUtils();
            try { 
                if(!zkClientUtils.isExists(Constants.AbstractZkNodePath.ZK_DICTIONRAY_PATH)){ 
                    List<DictionaryResponse> dicData = getDicData();
                    String data = JsonUtil.list2json(dicData);
                    zkClientUtils.create(Constants.AbstractZkNodePath.ZK_DICTIONRAY_PATH, data);
                    logger.info("------loadZKData success!");
                }
            } catch (Exception e) { 
                e.printStackTrace();
                logger.error("------loadZKData fail msg:"+e.getMessage());
            }finally{ 
                zkClientUtils.close();
            }
        }
    
        /** * 加载本地缓存 */
        public void loadLocal(){ 
            try { 
                logger.info("------loadLocal dictionary data--");
                List<DictionaryResponse> dataDic = getDicData();
                List<PartnerResponse> partnerDic = getPartnerData();
                new UpdateLocalCacheData().convert(dataDic,partnerDic);
            } catch (Exception e) { 
                e.printStackTrace();
                logger.error("-------------- loadLocal error :"+e.getMessage());
            }
        }
    
        /** * 重新加载本地缓存 */
        public void reloadLocal() { 
            loadLocal();
        }
    
        /** * 获得字典数据 * @return */
        private static List<DictionaryResponse> getDicData() { 
            DictionaryIfc dictionaryIfc = BeanFactoryUtil.getInstance("dictionaryIfc");
            Map<String, Object> conditions = new HashMap<String, Object>();
            BaseResponse<List<DictionaryResponse>> listBaseResponseDic = dictionaryIfc.selectByExample(conditions);
            List<DictionaryResponse> dicList = listBaseResponseDic.getDatat();
            return dicList;
        }
    
        /** * 获得合作方数据 * @return */
        private static List<PartnerResponse> getPartnerData() { 
            PartnerIfc partnerIfc = BeanFactoryUtil.getInstance("partnerIfc");
            Map<String, Object> conditions = new HashMap<String, Object>();
            BaseResponse<List<PartnerResponse>> listBaseResponsePartner = partnerIfc.selectByExample(conditions);
            List<PartnerResponse> partnerList = listBaseResponsePartner.getDatat();
            return partnerList;
        }
    
    
        static class UpdateLocalCacheData implements IUpdateLocalCacheData { 
    
            @Override
            public void change(Node node) { 
                try { 
                    logger.info("-------------- zookeeper node change -------------");
                    List<DictionaryResponse> dataDic = getDicData();
                    List<PartnerResponse> partnerDic = getPartnerData();
                    convert(dataDic,partnerDic);
                } catch (Exception e) { 
                    e.printStackTrace();
                    logger.error("-------------- zookeeper node change error :"+e.getMessage());
                }
            }
    
            public void convert(List<DictionaryResponse> dataDic,List<PartnerResponse> partnerDic){ 
                if(!Detect.notEmpty(dataDic)){ 
                    return;
                }
                try { 
                    LoadData.buildLocalCache(dataDic,partnerDic);
                    logger.info("-------------- server start update local data.... ---------------------");
                } catch (Exception e) { 
                    e.printStackTrace();
                    logger.error("-------------- loadLocal error :"+e.getMessage());
                }
            }
    
        }
    }

#### 4.ZkWatcherUtils ####

import com.ithzk.common.PropertiesUtil;
    import com.ithzk.common.zk.ifc.IUpdateLocalCacheData;
    import org.apache.curator.framework.CuratorFramework;
    import org.apache.curator.framework.CuratorFrameworkFactory;
    import org.apache.curator.framework.recipes.cache.NodeCache;
    import org.apache.curator.framework.recipes.cache.NodeCacheListener;
    import org.apache.curator.retry.RetryNTimes;
    import org.apache.log4j.Logger;
    
    /** * zookeeper监听工具类 * @author hzk * @date 2018/3/15 */
    public class ZkWatcherUtils { 
    
        private static final Logger logger = Logger.getLogger(ZkWatcherUtils.class);
    
        private String ZK_ADDRESS;
    
        /** * 添加监听事件 * @param zkPath 路径 * @param updateLocalCacheData 回调 * @throws Exception */
        public void addWatch(String zkPath,final IUpdateLocalCacheData updateLocalCacheData) throws Exception { 
            // 连接zk
            ZK_ADDRESS = PropertiesUtil.getValueByBundle("config","zk.address");
            CuratorFramework client = CuratorFrameworkFactory.newClient(ZK_ADDRESS, new RetryNTimes(10, 5000) );
            client.start();
            logger.info("----- zk client start success ------");
    
            //注册监听
            final NodeCache watcher = new NodeCache(client, zkPath);
            watcher.getListenable().addListener(new NodeCacheListener() { 
                @Override
                public void nodeChanged() throws Exception { 
                    if(null != watcher.getCurrentData()){ 
                        if(null != updateLocalCacheData){ 
                            Node node = new Node(watcher.getCurrentData().getPath(),new String(watcher.getCurrentData().getData(),"utf-8"));
                            updateLocalCacheData.change(node);
                        }
                        logger.info("----- zk node changed, data is: "+ new String(watcher.getCurrentData().getData(),"utf-8"));
                    }else{ 
                        logger.error("----- Node changed, data is null -----");
                    }
                }
            });
    
            watcher.start(true);
            logger.error("----- Register zk watcher success! -----");
        }
    
    }

##### 5.LoadData #####

package com.blog.cas.common.dic;
    
    import com.alibaba.fastjson.JSON;
    import com.alibaba.fastjson.JSONObject;
    import com.blog.cas.common.constants.Constants;
    import com.blog.cas.common.utils.BeanFactoryUtils;
    import com.blog.cas.common.utils.Detect;
    import com.blog.cas.common.utils.json.JsonUtils;
    import com.blog.cas.common.zk.CacheDataSynServerHandle;
    import com.blog.cas.common.zk.RetryRecord;
    import com.blog.cas.common.zk.ZkClientUtils;
    import com.blog.cas.repository.entity.BlogDictionary;
    import com.blog.cas.service.IDictionaryService;
    import org.apache.log4j.Logger;
    
    import java.util.Date;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    import java.util.concurrent.locks.Lock;
    import java.util.concurrent.locks.ReentrantReadWriteLock;
    
    /** * 本地缓存操作类 * @author hzk * @date 2018/11/14 */
    public class LoadData { 
    	
    	private static final Logger logger = Logger.getLogger(LoadData.class);
    
    	/** * itemKey value */
    	private static Map<String, BlogDictionary> dicInfoMap = new HashMap<>();
    
    	/** * Id value */
    	private static Map<Integer, BlogDictionary> dicInfoIdMap = new HashMap<>();
    
    	private static ReentrantReadWriteLock rwl = new ReentrantReadWriteLock();
    	private static Lock r = rwl.readLock();
    	private static Lock w = rwl.writeLock();
    
        /*------------------------------------------ mysql select-------------------------------------------*/
    
    	/** * 通过itemKey从数据库中查询数据 * @param key * @return {@link BlogDictionary} */
    	private static BlogDictionary getDicByItemKeyWithIfc(String key){ 
    		IDictionaryService blogDictionaryService = BeanFactoryUtils.getInstance("dictionaryService");
    		return blogDictionaryService.selectByItemKey(key);
    	}
    
    	/** * 通过id从数据库中查询数据 * @param id * @return {@link BlogDictionary} */
    	private static BlogDictionary getDicByIdWithIfc(Integer id){ 
    		IDictionaryService blogDictionaryService= BeanFactoryUtils.getInstance("dictionaryService");
    		return blogDictionaryService.selectByPrimaryKey(id);
    	}
    
        /*------------------------------------------by itemKey-------------------------------------------*/
    	/** * 通过itemKey查询字典 * @param key * @return {@link BlogDictionary} */
    	public static BlogDictionary getDicByItemKey(String key) { 
    		r.lock();
    		try { 
    			BlogDictionary dictionary = dicInfoMap.get(key);
    			if (dictionary != null) { 
    				return dictionary;
    			}
    			retryBuildLocalCache(dicInfoMap);
    			BlogDictionary dicByItemKeyWithIfc = getDicByItemKeyWithIfc(key);
    			if(null != dicByItemKeyWithIfc){ 
    				return dicByItemKeyWithIfc;
    			}
    			logger.warn("======Not Found Dic key:" + key);
    			return null;
    		}finally { 
    			r.unlock();
    		}
    
    	}
    
    	/** * 通过itemKey查询字典value * @param key 字典key * @param check 是否验证启用 * @return */
    	public static String getDicValueByItemKey(String key,boolean check) { 
    		r.lock();
    		try { 
    			BlogDictionary dictionary = dicInfoMap.get(key);
    			if (dictionary != null) { 
    				if(check){ 
    					if(Detect.equal(LoadData.getDicIdByItemKey(Constants.AbstractPublicStatus.ENABLE),dictionary.getFrState())){ 
    						return dictionary.getItemValue();
    					}else{ 
    						return null;
    					}
    				}else{ 
    					return dictionary.getItemValue();
    				}
    			}
    			retryBuildLocalCache(dicInfoMap);
    			BlogDictionary dicByItemKeyWithIfc = getDicByItemKeyWithIfc(key);
    			if(null != dicByItemKeyWithIfc){ 
    				if(check){ 
    					if(Detect.equal(LoadData.getDicIdByItemKey(Constants.AbstractPublicStatus.ENABLE),dicByItemKeyWithIfc.getFrState())){ 
    						return dicByItemKeyWithIfc.getItemValue();
    					}else{ 
    						return null;
    					}
    				}else{ 
    					return dicByItemKeyWithIfc.getItemValue();
    				}
    			}
    			logger.warn("======Not Found Dic key:" + key);
    			return null;
    		}finally { 
    			r.unlock();
    		}
    
    	}
    
    	/** * 通过itemKey查询字典value * @param key 字典key * @param defaultValue 不存在时设置默认值 * @return */
    	public static String getDicValueByItemKey(String key,String defaultValue){ 
    		r.lock();
    		try { 
    			BlogDictionary dictionary = dicInfoMap.get(key);
    			if (dictionary != null) { 
    				return dictionary.getItemValue();
    			}
    			retryBuildLocalCache(dicInfoMap);
    			BlogDictionary dicByItemKeyWithIfc = getDicByItemKeyWithIfc(key);
    			if(null != dicByItemKeyWithIfc){ 
    				return dicByItemKeyWithIfc.getItemValue();
    			}
    			logger.warn("======Not Found Dic key:" + key);
    			return defaultValue;
    		} finally { 
    			r.unlock();
    		}
    	}
    
    	/** * 通过itemKey查询字典ID * @param key 字典key * @return */
    	public static int getDicIdByItemKey(String key) { 
    		r.lock();
    		try { 
    			BlogDictionary dictionary = dicInfoMap.get(key);
    			if (dictionary != null) { 
    				return Detect.asPrimitiveInt(dictionary.getId());
    			}
    			retryBuildLocalCache(dicInfoMap);
    			BlogDictionary dicByItemKeyWithIfc = getDicByItemKeyWithIfc(key);
    			if(null != dicByItemKeyWithIfc){ 
    				return dicByItemKeyWithIfc.getId();
    			}
    			logger.warn("======Not Found Dic key:" + key);
    			return 0;
    		}finally { 
    			r.unlock();
    		}
    	}
    
    	/** * 通过itemKey查询字典中文名称 * @param key 字典key * @return */
    	public static String getDicNameByItemKey(String key) { 
    		r.lock();
    		try { 
    			BlogDictionary dictionary = dicInfoMap.get(key);
    			if (dictionary != null) { 
    				return Detect.asString(dictionary.getItemNamecn());
    			}
    			retryBuildLocalCache(dicInfoMap);
    			BlogDictionary dicByItemKeyWithIfc = getDicByItemKeyWithIfc(key);
    			if(null != dicByItemKeyWithIfc){ 
    				return dicByItemKeyWithIfc.getItemNamecn();
    			}
    			logger.warn("======Not Found Dic key:" + key);
    			return null;
    		}finally { 
    			r.unlock();
    		}
    	}
    
        /*------------------------------------------by id-------------------------------------------*/
    	/** * 通过ID查询字典 * @param id 字典ID * @return {@link BlogDictionary} */
    	public static BlogDictionary getDicById(Integer id) { 
    		r.lock();
    		try { 
    			BlogDictionary dictionary = dicInfoIdMap.get(id);
    			if (dictionary != null) { 
    				return dictionary;
    			} else{ 
    				retryBuildLocalCache(dicInfoIdMap);
    				BlogDictionary dicByItemKeyWithIfc = getDicByIdWithIfc(id);
    				if(null != dicByItemKeyWithIfc){ 
    					return dicByItemKeyWithIfc;
    				}
    				logger.warn("======Not Found Dic id:" + id);
    				return null;
    			}
    		}finally { 
    			r.unlock();
    		}
    	}
    
    	/** * 通过id查询字典value * @param id 字典ID * @return */
    	public static String getDicValueById(Integer id) { 
    		r.lock();
    		try { 
    			BlogDictionary dictionary = dicInfoIdMap.get(id);
    			if (dictionary != null) { 
    				return dictionary.getItemValue();
    			} else{ 
    				retryBuildLocalCache(dicInfoIdMap);
    				BlogDictionary dicByItemKeyWithIfc = getDicByIdWithIfc(id);
    				if(null != dicByItemKeyWithIfc){ 
    					return dicByItemKeyWithIfc.getItemValue();
    				}
    				logger.warn("======Not Found Dic id:" + id);
    				return null;
    			}
    		}finally { 
    			r.unlock();
    		}
    	}
    
    	/** * 通过ID查询字典itemKey * @param id 字典ID * @return */
    	public static String getDicItemKeyById(Integer id) { 
    		r.lock();
    		try { 
    			BlogDictionary dictionary = dicInfoIdMap.get(id);
    			if (dictionary != null) { 
    				return Detect.asString(dictionary.getItemKey());
    			} else { 
    				retryBuildLocalCache(dicInfoIdMap);
    				BlogDictionary dicByItemKeyWithIfc = getDicByIdWithIfc(id);
    				if(null != dicByItemKeyWithIfc){ 
    					return dicByItemKeyWithIfc.getItemKey();
    				}
    				logger.warn("======Not Found Dic id:" + id);
    				return null;
    			}
    		}finally { 
    			r.unlock();
    		}
    	}
    
    	/** * 通过ID查询字典parentId * @param id 字典ID * @return */
    	public static Integer getDicParentIdById(Integer id) { 
    		r.lock();
    		try { 
    			BlogDictionary dictionary = dicInfoIdMap.get(id);
    			if (dictionary != null) { 
    				return dictionary.getParentId();
    			} else { 
    				retryBuildLocalCache(dicInfoIdMap);
    				BlogDictionary dicByItemKeyWithIfc = getDicByIdWithIfc(id);
    				if(null != dicByItemKeyWithIfc){ 
    					return dicByItemKeyWithIfc.getParentId();
    				}
    				logger.warn("======Not Found Dic id:" + id);
    				return null;
    			}
    		}finally { 
    			r.unlock();
    		}
    	}
    
    	/** * 通过ID查询字典中文名称 * @param id 字典ID * @return */
    	public static String getDicNameById(Integer id) { 
    		r.lock();
    		try { 
    			BlogDictionary dictionary = dicInfoIdMap.get(id);
    			if (dictionary != null) { 
    				return Detect.asString(dictionary.getItemNamecn());
    			} else { 
    				retryBuildLocalCache(dicInfoIdMap);
    				BlogDictionary dicByItemKeyWithIfc = getDicByIdWithIfc(id);
    				if(null != dicByItemKeyWithIfc){ 
    					return dicByItemKeyWithIfc.getItemNamecn();
    				}
    				logger.warn("======Not Found Dic id:" + id);
    				return null;
    			}
    		}finally { 
    			r.unlock();
    		}
    	}
    
        /*------------------------------------------init data-------------------------------------------*/
    
    	/** * 初始化内存数据 * 字典/合作方 */
    	public static void buildLocalCache(List<BlogDictionary> dataDic){ 
    		w.lock();
    		try { 
    			//初始化数据字典
    			logger.warn("-------------------init dictionary start...---------------------");
    			for (BlogDictionary blogDictionary : dataDic) { 
    				dicInfoMap.put(Detect.trim(blogDictionary.getItemKey()), blogDictionary);
    				dicInfoIdMap.put(blogDictionary.getId(), blogDictionary);
    			}
    			logger.warn("-------------------init dictionary complete---------------------");
    		} catch (Exception e){ 
    			e.printStackTrace();
    			logger.warn("-------------------init LoadData error---------------------"+e.getMessage());
    		} finally{ 
    			w.unlock();
    		}
    	}
    
    	/** * 重试机制 * 若多次发现本地缓存为空 则重新加载本地数据 */
    	private static void retryBuildLocalCache(Map<?,BlogDictionary> dataDic){ 
    		// 内存中数据为null时 记录获取次数 到达一定次数尝试重试加载缓存
    		if(!Detect.notEmpty(dataDic)){ 
    			logger.warn("------ local cache dic is null -------");
    			ZkClientUtils zkClientUtils = new ZkClientUtils();
    			Date currentDate = new Date(System.currentTimeMillis());
    			try { 
    				if(!zkClientUtils.isExists(Constants.AbstractZkNodePath.ZK_RETRY_RECORD_PATH)){ 
    					logger.info("------ init retry record start... -------");
    					RetryRecord retryRecord = new RetryRecord(Detect.asString(currentDate.getTime()),0);
    					String data = JsonUtils.object2json(retryRecord);
    					zkClientUtils.create(Constants.AbstractZkNodePath.ZK_RETRY_RECORD_PATH, data);
    					logger.info("------ init retry record success -------");
    				}
    				String znodeData = zkClientUtils.getZnodeData(Constants.AbstractZkNodePath.ZK_RETRY_RECORD_PATH);
    				RetryRecord retryRecord = JSONObject.toJavaObject(JSON.parseObject(znodeData), RetryRecord.class);
    				if(null != retryRecord){ 
    					Integer retryCount = retryRecord.getRetryCount();
    					if(null != retryCount){ 
    						if(retryCount % Constants.AbstractZkNodePath.ZK_RETRY_COUNT_REGEX == 1){ 
    							// 尝试重新加载本地缓存
    							new CacheDataSynServerHandle().reloadLocal();
    						}
    						retryRecord.setLastRecordTime(Detect.asString(currentDate.getTime()));
    						retryRecord.setRetryCount(retryCount+1);
    						String data = JsonUtils.object2json(retryRecord);
    						zkClientUtils.set(Constants.AbstractZkNodePath.ZK_RETRY_RECORD_PATH, data);
    					}
    
    				}
    			} catch (Exception e) { 
    				e.printStackTrace();
    				logger.error("------ retry build local cache fail msg:"+e.getMessage());
    			}finally{ 
    				zkClientUtils.close();
    			}
    		}
    	}
    
    	/** * 刷新zk字典节点缓存 * @return */
    	public static int renovateZkDicCache(){ 
    		ZkClientUtils zkClientUtils = new ZkClientUtils();
    		int success = 1;
    		w.lock();
    		try { 
    			List<BlogDictionary> blogDictionary = CacheDataSynServerHandle.getDicData();
    			String data = JsonUtils.list2json(blogDictionary);
    			if(!zkClientUtils.isExists(Constants.AbstractZkNodePath.ZK_DICTIONRAY_PATH)){ 
    				zkClientUtils.create(Constants.AbstractZkNodePath.ZK_DICTIONRAY_PATH, data);
    				logger.info("------renovateZKData success!");
    			}else{ 
    				zkClientUtils.set(Constants.AbstractZkNodePath.ZK_DICTIONRAY_PATH, data);
    				logger.info("------renovateZKData success!");
    			}
    		} catch (Exception e) { 
    			e.printStackTrace();
    			success = 0;
    			logger.error("------renovateZKData fail msg:"+e.getMessage());
    		}finally{ 
    			zkClientUtils.close();
    			w.unlock();
    		}
    		return success;
    	}
    
    }

#### 6.spring.xml ####

>  将laze-init设为false，启动即会加载

<bean id="beanFactoryUtil" class="com.ithzk.common.BeanFactoryUtil" lazy-init="false"/>
    	<bean id="initDataListener" class="com.ithzk.common.listener.InitDataListener" lazy-init="false"/>