java JedisUtil 工具类连接redis服务器

JedisUtils工具类如下：包含各种类型存储和删除


package com.telit.common.utils;

import java.util.List;
import java.util.Map;
import java.util.Set;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import com.telit.common.config.Global;

import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.exceptions.JedisException;

/**
 * Jedis Cache 工具类
 * 
 * @author zhoujielun
 * @version 2017-6-19
 */
public class JedisUtils {

	private static Logger logger = LoggerFactory.getLogger(JedisUtils.class);
	
	private static JedisPool jedisPool = SpringContextHolder.getBean(JedisPool.class);

	public static final String KEY_PREFIX = Global.getConfig("redis.keyPrefix");
	
	/**
	 * 获取缓存
	 * @param key 键
	 * @return 值
	 */
	public static String get(String key) {
		String value = null;
		Jedis jedis = null;
		try {
			jedis = getResource();
			if (jedis.exists(key)) {
				value = jedis.get(key);
				value = StringUtils.isNotBlank(value) && !"nil".equalsIgnoreCase(value) ? value : null;
				logger.debug("get {} = {}", key, value);
			}
		} catch (Exception e) {
			logger.warn("get {} = {}", key, value, e);
		} finally {
			returnResource(jedis);
		}
		return value;
	}
	
	/**
	 * 获取缓存
	 * @param key 键
	 * @return 值
	 */
	public static Object getObject(String key) {
		Object value = null;
		Jedis jedis = null;
		try {
			jedis = getResource();
			if (jedis.exists(getBytesKey(key))) {
				value = toObject(jedis.get(getBytesKey(key)));
				logger.debug("getObject {} = {}", key, value);
			}
		} catch (Exception e) {
			logger.warn("getObject {} = {}", key, value, e);
		} finally {
			returnResource(jedis);
		}
		return value;
	}
	
	/**
	 * 设置缓存
	 * @param key 键
	 * @param value 值
	 * @param cacheSeconds 超时时间，0为不超时
	 * @return
	 */
	public static String set(String key, String value, int cacheSeconds) {
		String result = null;
		Jedis jedis = null;
		try {
			jedis = getResource();
			result = jedis.set(key, value);
			if (cacheSeconds != 0) {
				jedis.expire(key, cacheSeconds);
			}
			logger.debug("set {} = {}", key, value);
		} catch (Exception e) {
			logger.warn("set {} = {}", key, value, e);
		} finally {
			returnResource(jedis);
		}
		return result;
	}
	
	/**
	 * 设置缓存
	 * @param key 键
	 * @param value 值
	 * @param cacheSeconds 超时时间，0为不超时
	 * @return
	 */
	public static String setObject(String key, Object value, int cacheSeconds) {
		String result = null;
		Jedis jedis = null;
		try {
			jedis = getResource();
			result = jedis.set(getBytesKey(key), toBytes(value));
			if (cacheSeconds != 0) {
				jedis.expire(key, cacheSeconds);
			}
			logger.debug("setObject {} = {}", key, value);
		} catch (Exception e) {
			logger.warn("setObject {} = {}", key, value, e);
		} finally {
			returnResource(jedis);
		}
		return result;
	}
	
	/**
	 * 获取List缓存
	 * @param key 键
	 * @return 值
	 */
	public static List getList(String key) {
		List value = null;
		Jedis jedis = null;
		try {
			jedis = getResource();
			if (jedis.exists(key)) {
				value = jedis.lrange(key, 0, -1);
				logger.debug("getList {} = {}", key, value);
			}
		} catch (Exception e) {
			logger.warn("getList {} = {}", key, value, e);
		} finally {
			returnResource(jedis);
		}
		return value;
	}
	
	/**
	 * 获取List缓存
	 * @param key 键
	 * @return 值
	 */
	public static List