//Redis服务器IPprivate static String ADDR_ARRAY = "127.0.0.1";//Redis的端口号private static int PORT = 6379;//访问密码private static String AUTH = "";//可用连接实例的最大数目，默认值为8；//如果赋值为-1，则表示不限制；如果pool已经分配了maxActive个jedis实例，则此时pool的状态为exhausted(耗尽)。private static int MAX_ACTIVE = 500;//控制一个pool最多有多少个状态为idle(空闲的)的jedis实例，默认值也是8。private static int MAX_IDLE = 100;//等待可用连接的最大时间，单位毫秒，默认值为-1，表示永不超时。如果超过等待时间，则直接抛出JedisConnectionException；private static int MAX_WAIT = 10 * 1000;private static int TIMEOUT = 10 * 1000;//超时时间//在borrow一个jedis实例时，是否提前进行validate操作；如果为true，则得到的jedis实例均是可用的；private static boolean TEST_ON_BORROW = true;private static JedisPool jedisPool = null;/*** 初始化Redis连接池*/private static void initialPool() {try {JedisPoolConfig config = new JedisPoolConfig();config.setMaxTotal(MAX_ACTIVE);config.setMaxIdle(MAX_IDLE);config.setMaxWaitMillis(MAX_WAIT);config.setTestOnBorrow(TEST_ON_BORROW);//使用时进行扫描，确保都可用config.setTestWhileIdle(true);//Idle时进行连接扫描config.setTestOnReturn(true);//还回线程池时进行扫描
//
表示idle object evitor两次扫描之间要sleep的毫秒数
//            config.setTimeBetweenEvictionRunsMillis(30000);
//
表示idle object evitor每次扫描的最多的对象数
//            config.setNumTestsPerEvictionRun(10);
//
表示一个对象至少停留在idle状态的最短时间，然后才能被idle object evitor扫描并驱逐；这一项只有在timeBetweenEvictionRunsMillis大于0时才有意义
//            config.setMinEvictableIdleTimeMillis(60000);if (StringUtils.isNotBlank(AUTH)) {jedisPool = new JedisPool(config, ADDR_ARRAY.split(",")[0], PORT, TIMEOUT, AUTH);} else {jedisPool = new JedisPool(config, ADDR_ARRAY.split(",")[0], PORT, TIMEOUT);}} catch (Exception e) {logger.error("First create JedisPool error : " + e);try {//如果第一个IP异常，则访问第二个IPJedisPoolConfig config = new JedisPoolConfig();config.setMaxTotal(MAX_ACTIVE);config.setMaxIdle(MAX_IDLE);config.setMaxWaitMillis(MAX_WAIT);config.setTestOnBorrow(TEST_ON_BORROW);jedisPool = new JedisPool(config, ADDR_ARRAY.split(",")[1], PORT, TIMEOUT, AUTH);} catch (Exception e2) {logger.error("Second create JedisPool error : " + e2);}}}/*** 在多线程环境同步初始化*/private static synchronized void poolInit() {if (jedisPool == null) {initialPool();}}/*** 同步获取Jedis实例** @return Jedis*/public synchronized static Jedis getJedis() {if (jedisPool == null) {poolInit();}Jedis jedis = null;try {if (jedisPool != null) {jedis = jedisPool.getResource();}} catch (Exception e) {logger.error("Get jedis Error : " + e.getMessage(), e);} finally {returnResource(jedis);//归还到Redis池里面}return jedis;}/*** 释放jedis资源** @param jedis*/public static void returnResource(final Jedis jedis) {if (jedis != null && jedisPool != null) {jedisPool.returnResource(jedis);}}/*** 关闭连接池*/public static void closePool() {if (jedisPool != null) {jedisPool.close();}}/*** 设置 String** @param key* @param value*/public synchronized static void setString(String key, String value) {try {value = StringUtils.isEmpty(value) ? "" : value;getJedis().set(key, value);} catch (Exception e) {logger.error("Set key error : " + e);}}/*** 设置 过期时间** @param key* @param seconds 以秒为单位* @param value*/public synchronized static void setString(String key, int seconds, String value) {try {value = StringUtils.isEmpty(value) ? "" : value;getJedis().setex(key, seconds, value);} catch (Exception e) {logger.error("Set keyex error : " + e);}}/*** 获取String值** @param key* @return value*/public synchronized static String getString(String key) {if (getJedis() == null || !getJedis().exists(key)) {return null;}return getJedis().get(key);}}