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@@ -0,0 +1,212 @@
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+package org.jeecg.modules.fbsMomOrder.entity;
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+
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+import java.util.ArrayList;
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+import java.util.HashMap;
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+import java.util.Iterator;
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+
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+/**
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+ * 功能描述:
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+ *
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+ * @Author: chenchuang
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+ * @Date: 2021/2/26 13:19
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+ */
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+public class CacheManager {
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+ //key唯一名称
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+ public static final String strFormDict = "formDictformMain";
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+
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+ /************************************************后台 缓存 ********************************************************/
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+ public static final String findAllEstate="findAllEstate";
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+
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+ /************************************************后台 缓存 end********************************************************/
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+
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+
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+ private static HashMap cacheMap = new HashMap();
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+
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+ //单实例构造方法
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+ private CacheManager() {
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+ super();
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+ }
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+ //获取布尔值的缓存
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+ public static boolean getSimpleFlag(String key){
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+ try{
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+ return (Boolean) cacheMap.get(key);
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+ }catch(NullPointerException e){
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+ }
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+ return false;
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+ }
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+ public static long getServerStartdt(String key){
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+ try {
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+ return (Long)cacheMap.get(key);
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+ } catch (Exception ex) {
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+ return 0;
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+ }
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+ }
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+ //设置布尔值的缓存
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+ public synchronized static boolean setSimpleFlag(String key,boolean flag){
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+ if (flag && getSimpleFlag(key)) {//假如为真不允许被覆盖
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+ return false;
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+ }else{
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+ cacheMap.put(key, flag);
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+ return true;
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+ }
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+ }
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+ public synchronized static boolean setSimpleFlag(String key,long serverbegrundt){
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+ if (cacheMap.get(key) == null) {
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+ cacheMap.put(key,serverbegrundt);
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+ return true;
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+ }else{
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+ return false;
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+ }
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+ }
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+
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+
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+ //得到缓存。同步静态方法
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+ private synchronized static Cache getCache(String key) {
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+ return (Cache) cacheMap.get(key);
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+ }
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+
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+ //判断是否存在一个缓存
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+ private synchronized static boolean hasCache(String key) {
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+ return cacheMap.containsKey(key);
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+ }
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+
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+ //清除所有缓存
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+ public synchronized static void clearAll() {
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+ cacheMap.clear();
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+ }
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+
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+ //清除某类一特定缓存,通过遍历HASHMAP下的所有对象,来判断它的KEY与传入的TYPE是否匹配
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+ public synchronized static void clearAll(String type) {
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+ Iterator i = cacheMap.entrySet().iterator();
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+ String key;
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+ ArrayList<String> arr = new ArrayList<String>();
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+ try {
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+ while (i.hasNext()) {
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+ java.util.Map.Entry entry = (java.util.Map.Entry) i.next();
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+ key = (String) entry.getKey();
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+ if (key.startsWith(type)) { //如果匹配则删除掉
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+ arr.add(key);
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+ }
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+ }
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+ for (int k = 0; k < arr.size(); k++) {
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+ clearOnly(arr.get(k));
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+ }
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+ } catch (Exception ex) {
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+ ex.printStackTrace();
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+ }
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+ }
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+
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+ //清除指定的缓存
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+ public synchronized static void clearOnly(String key) {
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+ cacheMap.remove(key);
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+ }
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+
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+ //载入缓存
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+ public synchronized static void putCache(String key, Cache obj) {
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+ cacheMap.put(key, obj);
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+ }
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+
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+ //获取缓存信息
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+ public static Cache getCacheInfo(String key) {
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+
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+ if (hasCache(key)) {
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+ Cache cache = getCache(key);
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+ if (cacheExpired(cache)) { //调用判断是否终止方法
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+ cache.setExpired(true);
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+ clearOnly(key);
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+ }
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+ return cache;
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+ }else
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+ return null;
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+ }
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+
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+ //载入缓存信息
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+ public static void putCacheInfo(String key, Cache obj, long dt,boolean expired) {
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+ Cache cache = new Cache();
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+ cache.setKey(key);
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+ cache.setTimeOut(dt + System.currentTimeMillis()); //设置多久后更新缓存
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+ cache.setValue(obj);
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+ cache.setExpired(expired); //缓存默认载入时,终止状态为FALSE
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+ cacheMap.put(key, cache);
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+ }
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+ //重写载入缓存信息方法
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+ public static void putCacheInfo(String key,Cache obj,long dt){
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+ Cache cache = new Cache();
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+ cache.setKey(key);
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+ cache.setTimeOut(dt+System.currentTimeMillis());
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+ cache.setValue(obj);
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+ cache.setExpired(false);
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+ cacheMap.put(key,cache);
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+ }
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+
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+ //判断缓存是否终止
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+ public static boolean cacheExpired(Cache cache) {
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+ if (null == cache) { //传入的缓存不存在
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+ return false;
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+ }
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+ long nowDt = System.currentTimeMillis(); //系统当前的毫秒数
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+ long cacheDt = cache.getTimeOut(); //缓存内的过期毫秒数
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+ if (cacheDt <= 0||cacheDt>nowDt) { //过期时间小于等于零时,或者过期时间大于当前时间时,则为FALSE
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+ return false;
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+ } else { //大于过期时间 即过期
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+ return true;
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+ }
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+ }
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+
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+ //获取缓存中的大小
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+ public static int getCacheSize() {
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+ return cacheMap.size();
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+ }
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+
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+ //获取指定的类型的大小
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+ public static int getCacheSize(String type) {
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+ int k = 0;
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+ Iterator i = cacheMap.entrySet().iterator();
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+ String key;
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+ try {
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+ while (i.hasNext()) {
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+ java.util.Map.Entry entry = (java.util.Map.Entry) i.next();
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+ key = (String) entry.getKey();
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+ if (key.indexOf(type) != -1) { //如果匹配则删除掉
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+ k++;
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+ }
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+ }
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+ } catch (Exception ex) {
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+ ex.printStackTrace();
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+ }
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+
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+ return k;
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+ }
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+
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+ //获取缓存对象中的所有键值名称
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+ public static ArrayList<String> getCacheAllkey() {
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+ ArrayList a = new ArrayList();
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+ try {
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+ Iterator i = cacheMap.entrySet().iterator();
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+ while (i.hasNext()) {
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+ java.util.Map.Entry entry = (java.util.Map.Entry) i.next();
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+ a.add((String) entry.getKey());
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+ }
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+ } catch (Exception ex) {} finally {
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+ return a;
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+ }
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+ }
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+
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+ //获取缓存对象中指定类型 的键值名称
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+ public static ArrayList<String> getCacheListkey(String type) {
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+ ArrayList a = new ArrayList();
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+ String key;
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+ try {
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+ Iterator i = cacheMap.entrySet().iterator();
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+ while (i.hasNext()) {
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+ java.util.Map.Entry entry = (java.util.Map.Entry) i.next();
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+ key = (String) entry.getKey();
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+ if (key.indexOf(type) != -1) {
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+ a.add(key);
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+ }
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+ }
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+ } catch (Exception ex) {} finally {
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+ return a;
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+ }
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+ }
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+}
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