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<String> getList(String key) {List<String> 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<Object> getObjectList(String key) {List<Object> value = null;Jedis jedis = null;try {jedis = getResource();if (jedis.exists(getBytesKey(key))) {List<byte[]> list = jedis.lrange(getBytesKey(key), 0, -1);value = Lists.newArrayList();for (byte[] bs : list){value.add(toObject(bs));}logger.debug("getObjectList {} = {}", key, value);}} catch (Exception e) {logger.warn("getObjectList {} = {}", key, value, e);} finally {returnResource(jedis);}return value;}/** * 设置List缓存 * @param key 键 * @param value 值 * @param cacheSeconds 超时时间，0为不超时 * @return */public static long setList(String key, List<String> value, int cacheSeconds) {long result = 0;Jedis jedis = null;try {jedis = getResource();if (jedis.exists(key)) {jedis.del(key);}result = jedis.rpush(key, (String[])value.toArray());if (cacheSeconds != 0) {jedis.expire(key, cacheSeconds);}logger.debug("setList {} = {}", key, value);} catch (Exception e) {logger.warn("setList {} = {}", key, value, e);} finally {returnResource(jedis);}return result;}/** * 设置List缓存 * @param key 键 * @param value 值 * @param cacheSeconds 超时时间，0为不超时 * @return */public static long setObjectList(String key, List<Object> value, int cacheSeconds) {long result = 0;Jedis jedis = null;try {jedis = getResource();if (jedis.exists(getBytesKey(key))) {jedis.del(key);}List<byte[]> list = Lists.newArrayList();for (Object o : value){list.add(toBytes(o));}result = jedis.rpush(getBytesKey(key), (byte[][])list.toArray());if (cacheSeconds != 0) {jedis.expire(key, cacheSeconds);}logger.debug("setObjectList {} = {}", key, value);} catch (Exception e) {logger.warn("setObjectList {} = {}", key, value, e);} finally {returnResource(jedis);}return result;}/** * 向List缓存中添加值 * @param key 键 * @param value 值 * @return */public static long listAdd(String key, String... value) {long result = 0;Jedis jedis = null;try {jedis = getResource();result = jedis.rpush(key, value);logger.debug("listAdd {} = {}", key, value);} catch (Exception e) {logger.warn("listAdd {} = {}", key, value, e);} finally {returnResource(jedis);}return result;}/** * 向List缓存中添加值 * @param key 键 * @param value 值 * @return */public static long listObjectAdd(String key, Object... value) {long result = 0;Jedis jedis = null;try {jedis = getResource();List<byte[]> list = Lists.newArrayList();for (Object o : value){list.add(toBytes(o));}result = jedis.rpush(getBytesKey(key), (byte[][])list.toArray());logger.debug("listObjectAdd {} = {}", key, value);} catch (Exception e) {logger.warn("listObjectAdd {} = {}", key, value, e);} finally {returnResource(jedis);}return result;}/** * 获取缓存 * @param key 键 * @return 值 */public static Set<String> getSet(String key) {Set<String> value = null;Jedis jedis = null;try {jedis = getResource();if (jedis.exists(key)) {value = jedis.smembers(key);logger.debug("getSet {} = {}", key, value);}} catch (Exception e) {logger.warn("getSet {} = {}", key, value, e);} finally {returnResource(jedis);}return value;}/** * 获取缓存 * @param key 键 * @return 值 */public static Set<Object> getObjectSet(String key) {Set<Object> value = null;Jedis jedis = null;try {jedis = getResource();if (jedis.exists(getBytesKey(key))) {value = Sets.newHashSet();Set<byte[]> set = jedis.smembers(getBytesKey(key));for (byte[] bs : set){value.add(toObject(bs));}logger.debug("getObjectSet {} = {}", key, value);}} catch (Exception e) {logger.warn("getObjectSet {} = {}", key, value, e);} finally {returnResource(jedis);}return value;}/** * 设置Set缓存 * @param key 键 * @param value 值 * @param cacheSeconds 超时时间，0为不超时 * @return */public static long setSet(String key, Set<String> value, int cacheSeconds) {long result = 0;Jedis jedis = null;try {jedis = getResource();if (jedis.exists(key)) {jedis.del(key);}result = jedis.sadd(key, (String[])value.toArray());if (cacheSeconds != 0) {jedis.expire(key, cacheSeconds);}logger.debug("setSet {} = {}", key, value);} catch (Exception e) {logger.warn("setSet {} = {}", key, value, e);} finally {returnResource(jedis);}return result;}/** * 设置Set缓存 * @param key 键 * @param value 值 * @param cacheSeconds 超时时间，0为不超时 * @return */public static long setObjectSet(String key, Set<Object> value, int cacheSeconds) {long result = 0;Jedis jedis = null;try {jedis = getResource();if (jedis.exists(getBytesKey(key))) {jedis.del(key);}Set<byte[]> set = Sets.newHashSet();for (Object o : value){set.add(toBytes(o));}result = jedis.sadd(getBytesKey(key), (byte[][])set.toArray());if (cacheSeconds != 0) {jedis.expire(key, cacheSeconds);}logger.debug("setObjectSet {} = {}", key, value);} catch (Exception e) {logger.warn("setObjectSet {} = {}", key, value, e);} finally {returnResource(jedis);}return result;}/** * 向Set缓存中添加值 * @param key 键 * @param value 值 * @return */public static long setSetAdd(String key, String... value) {long result = 0;Jedis jedis = null;try {jedis = getResource();result = jedis.sadd(key, value);logger.debug("setSetAdd {} = {}", key, value);} catch (Exception e) {logger.warn("setSetAdd {} = {}", key, value, e);} finally {returnResource(jedis);}return result;}/** * 向Set缓存中添加值 * @param key 键 * @param value 值 * @return */public static long setSetObjectAdd(String key, Object... value) {long result = 0;Jedis jedis = null;try {jedis = getResource();Set<byte[]> set = Sets.newHashSet();for (Object o : value){set.add(toBytes(o));}result = jedis.rpush(getBytesKey(key), (byte[][])set.toArray());logger.debug("setSetObjectAdd {} = {}", key, value);} catch (Exception e) {logger.warn("setSetObjectAdd {} = {}", key, value, e);} finally {returnResource(jedis);}return result;}/** * 获取Map缓存 * @param key 键 * @return 值 */public static Map<String, String> getMap(String key) {Map<String, String> value = null;Jedis jedis = null;try {jedis = getResource();if (jedis.exists(key)) {value = jedis.hgetAll(key);logger.debug("getMap {} = {}", key, value);}} catch (Exception e) {logger.warn("getMap {} = {}", key, value, e);} finally {returnResource(jedis);}return value;}/** * 获取Map缓存 * @param key 键 * @return 值 */public static Map<String, Object> getObjectMap(String key) {Map<String, Object> value = null;Jedis jedis = null;try {jedis = getResource();if (jedis.exists(getBytesKey(key))) {value = Maps.newHashMap();Map<byte[], byte[]> map = jedis.hgetAll(getBytesKey(key));for (Map.Entry<byte[], byte[]> e : map.entrySet()){value.put(StringUtils.toString(e.getKey()), toObject(e.getValue()));}logger.debug("getObjectMap {} = {}", key, value);}} catch (Exception e) {logger.warn("getObjectMap {} = {}", key, value, e);} finally {returnResource(jedis);}return value;}/** * 设置Map缓存 * @param key 键 * @param value 值 * @param cacheSeconds 超时时间，0为不超时 * @return */public static String setMap(String key, Map<String, String> value, int cacheSeconds) {String result = null;Jedis jedis = null;try {jedis = getResource();if (jedis.exists(key)) {jedis.del(key);}result = jedis.hmset(key, value);if (cacheSeconds != 0) {jedis.expire(key, cacheSeconds);}logger.debug("setMap {} = {}", key, value);} catch (Exception e) {logger.warn("setMap {} = {}", key, value, e);} finally {returnResource(jedis);}return result;}/** * 设置Map缓存 * @param key 键 * @param value 值 * @param cacheSeconds 超时时间，0为不超时 * @return */public static String setObjectMap(String key, Map<String, Object> value, int cacheSeconds) {String result = null;Jedis jedis = null;try {jedis = getResource();if (jedis.exists(getBytesKey(key))) {jedis.del(key);}Map<byte[], byte[]> map = Maps.newHashMap();for (Map.Entry<String, Object> e : value.entrySet()){map.put(getBytesKey(e.getKey()), toBytes(e.getValue()));}result = jedis.hmset(getBytesKey(key), (Map<byte[], byte[]>)map);if (cacheSeconds != 0) {jedis.expire(key, cacheSeconds);}logger.debug("setObjectMap {} = {}", key, value);} catch (Exception e) {logger.warn("setObjectMap {} = {}", key, value, e);} finally {returnResource(jedis);}return result;}/** * 向Map缓存中添加值 * @param key 键 * @param value 值 * @return */public static String mapPut(String key, Map<String, String> value) {String result = null;Jedis jedis = null;try {jedis = getResource();result = jedis.hmset(key, value);logger.debug("mapPut {} = {}", key, value);} catch (Exception e) {logger.warn("mapPut {} = {}", key, value, e);} finally {returnResource(jedis);}return result;}/** * 向Map缓存中添加值 * @param key 键 * @param value 值 * @return */public static String mapObjectPut(String key, Map<String, Object> value) {String result = null;Jedis jedis = null;try {jedis = getResource();Map<byte[], byte[]> map = Maps.newHashMap();for (Map.Entry<String, Object> e : value.entrySet()){map.put(getBytesKey(e.getKey()), toBytes(e.getValue()));}result = jedis.hmset(getBytesKey(key), (Map<byte[], byte[]>)map);logger.debug("mapObjectPut {} = {}", key, value);} catch (Exception e) {logger.warn("mapObjectPut {} = {}", key, value, e);} finally {returnResource(jedis);}return result;}/** * 移除Map缓存中的值 * @param key 键 * @param value 值 * @return */public static long mapRemove(String key, String mapKey) {long result = 0;Jedis jedis = null;try {jedis = getResource();result = jedis.hdel(key, mapKey);logger.debug("mapRemove {}  {}", key, mapKey);} catch (Exception e) {logger.warn("mapRemove {}  {}", key, mapKey, e);} finally {returnResource(jedis);}return result;}/** * 移除Map缓存中的值 * @param key 键 * @param value 值 * @return */public static long mapObjectRemove(String key, String mapKey) {long result = 0;Jedis jedis = null;try {jedis = getResource();result = jedis.hdel(getBytesKey(key), getBytesKey(mapKey));logger.debug("mapObjectRemove {}  {}", key, mapKey);} catch (Exception e) {logger.warn("mapObjectRemove {}  {}", key, mapKey, e);} finally {returnResource(jedis);}return result;}/** * 判断Map缓存中的Key是否存在 * @param key 键 * @param value 值 * @return */public static boolean mapExists(String key, String mapKey) {boolean result = false;Jedis jedis = null;try {jedis = getResource();result = jedis.hexists(key, mapKey);logger.debug("mapExists {}  {}", key, mapKey);} catch (Exception e) {logger.warn("mapExists {}  {}", key, mapKey, e);} finally {returnResource(jedis);}return result;}/** * 判断Map缓存中的Key是否存在 * @param key 键 * @param value 值 * @return */public static boolean mapObjectExists(String key, String mapKey) {boolean result = false;Jedis jedis = null;try {jedis = getResource();result = jedis.hexists(getBytesKey(key), getBytesKey(mapKey));logger.debug("mapObjectExists {}  {}", key, mapKey);} catch (Exception e) {logger.warn("mapObjectExists {}  {}", key, mapKey, e);} finally {returnResource(jedis);}return result;}/** * 删除缓存 * @param key 键 * @return */public static long del(String key) {long result = 0;Jedis jedis = null;try {jedis = getResource();if (jedis.exists(key)){result = jedis.del(key);logger.debug("del {}", key);}else{logger.debug("del {} not exists", key);}} catch (Exception e) {logger.warn("del {}", key, e);} finally {returnResource(jedis);}return result;}/** * 删除缓存 * @param key 键 * @return */public static long delObject(String key) {long result = 0;Jedis jedis = null;try {jedis = getResource();if (jedis.exists(getBytesKey(key))){result = jedis.del(getBytesKey(key));logger.debug("delObject {}", key);}else{logger.debug("delObject {} not exists", key);}} catch (Exception e) {logger.warn("delObject {}", key, e);} finally {returnResource(jedis);}return result;}/** * 缓存是否存在 * @param key 键 * @return */public static boolean exists(String key) {boolean result = false;Jedis jedis = null;try {jedis = getResource();result = jedis.exists(key);logger.debug("exists {}", key);} catch (Exception e) {logger.warn("exists {}", key, e);} finally {returnResource(jedis);}return result;}/** * 缓存是否存在 * @param key 键 * @return */public static boolean existsObject(String key) {boolean result = false;Jedis jedis = null;try {jedis = getResource();result = jedis.exists(getBytesKey(key));logger.debug("existsObject {}", key);} catch (Exception e) {logger.warn("existsObject {}", key, e);} finally {returnResource(jedis);}return result;}/** * 获取资源 * @return * @throws JedisException */public static Jedis getResource() throws JedisException {Jedis jedis = null;try {jedis = jedisPool.getResource();//logger.debug("getResource.", jedis);} catch (JedisException e) {logger.warn("getResource.", e);returnBrokenResource(jedis);throw e;}return jedis;}/** * 归还资源 * @param jedis * @param isBroken */public static void returnBrokenResource(Jedis jedis) {if (jedis != null) {jedisPool.returnBrokenResource(jedis);}}/** * 释放资源 * @param jedis * @param isBroken */public static void returnResource(Jedis jedis) {if (jedis != null) {jedisPool.returnResource(jedis);}}/** * 获取byte[]类型Key * @param key * @return */public static byte[] getBytesKey(Object object){if(object instanceof String){    return StringUtils.getBytes((String)object);    }else{    return ObjectUtils.serialize(object);    }}/** * Object转换byte[]类型 * @param key * @return */public static byte[] toBytes(Object object){    return ObjectUtils.serialize(object);}/** * byte[]型转换Object * @param key * @return */public static Object toObject(byte[] bytes){return ObjectUtils.unserialize(bytes);}}

1.连接redis服务器的驱动jar包下载：http://download.csdn.net/detail/pengyu432/9874426

2.windows 64 位   redis服务器安装包下载地址：http://download.csdn.net/detail/pengyu432/9765377

3.web项目spring框架下，添加spring-context-jedis.xml文件，文件内容如下：

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsdhttp://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context-3.2.xsd"default-lazy-init="true"><description>Jedis Configuration</description>    <!-- 加载配置属性文件 --><context:property-placeholder ignore-unresolvable="true" location="classpath:telit.properties" /><bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig"><property name="maxIdle" value="300" /> <!-- 最大能够保持idel状态的对象数  --><property name="maxTotal" value="60000" /> <!-- 最大分配的对象数 --><property name="testOnBorrow" value="true" /> <!-- 当调用borrow Object方法时，是否进行有效性检查 --></bean><bean id="jedisPool" class="redis.clients.jedis.JedisPool"><constructor-arg index="0" ref="jedisPoolConfig" /><constructor-arg index="1" value="127.0.0.1" /><constructor-arg index="2" value="6379" type="int" /></bean></beans>

4.配置完成，即可使用JedisUtils 工具类调用redis服务了，字符串、map、list、json等类型的存储和删除等。