<!--集成的RedisJAR-->
<!--引入jedis需的jar包-->
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.9.0</version>
</dependency>
<!--Spring整合jedis的依赖-->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-redis</artifactId>
<version>1.7.1.RELEASE</version>
</dependency>
package com.dsj.gdbd.utils.jedis;
import com.dsj.gdbd.utils.serialize.SerializingUtil;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.InitializingBean;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;
import javax.annotation.PostConstruct;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
public class JedisUtil implements InitializingBean {
private static JedisPool pool = null;
/**
* 默认缓存时间
*/
private static final int DEFAULT_CACHE_SECONDS = 0;// 单位秒 设置成一个钟
private static Logger LOGGER = Logger.getLogger(JedisUtil.class);
public static JedisPool getPool() {
return pool;
}
@PostConstruct
public void init() {
if (pool == null) {
JedisPoolConfig config = new JedisPoolConfig();
config.setMaxTotal(10000);
config.setMaxIdle(1000);
config.setMaxWaitMillis(1000 * 10);
//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；
config.setTestOnBorrow(true);
pool = new JedisPool(config, "192.168.31.206", 6379, 10000);
}
}
public synchronized static Jedis getResource() {
if (pool == null) {
pool = getPool();
}
return pool.getResource();
}
public static void closeRedis(Jedis redis) {
if (redis != null) {
redis.close();
}
}
public static void set(String key, String value) {
Jedis redis = getResource();
try {
redis.set(key, value);
} finally {
closeRedis(redis);
}
}
public static void set(Object key, Object value) {
Jedis redis = getResource();
try {
redis.set(SerializingUtil.serialize(key), SerializingUtil.serialize(value));
} finally {
closeRedis(redis);
}
}
public static String get(String key) {
Jedis redis = getResource();
try {
return redis.get(key);
} finally {
closeRedis(redis);
}
}
/**
* 根据缓存键获取Redis缓存中的值.<br/>
*
* @param key 键.<br/>
* @return Object .<br/>
* @throws Exception
*/
public static Object get(Object key) {
Jedis jedis = null;
try {
jedis = getResource();
byte[] obj = jedis.get(SerializingUtil.serialize(key));
return obj == null ? null : SerializingUtil.deserialize(obj);
} catch (Exception e) {
LOGGER.error("Cache获取失败：" + e);
return null;
} finally {
closeRedis(jedis);
}
}
/**
* 根据缓存键获取Redis缓存中的值.<br/>
*
* @param key 键.<br/>
* @return Object .<br/>
* @throws Exception
*/
public static Object getObj(String key) {
Jedis jedis = null;
try {
jedis = getResource();
byte[] obj = jedis.get(SerializingUtil.serialize(key));
return obj == null ? null : SerializingUtil.deserialize(obj);
} catch (Exception e) {
LOGGER.error("Cache获取失败：" + e);
return null;
} finally {
closeRedis(jedis);
}
}
/**
* 根据缓存键获取Redis缓存中的值.<br/>
*
* @param key 键.<br/>
* @return Object .<br/>
* @throws Exception
*/
public static String getStr(String key) {
Jedis jedis = null;
try {
jedis = getResource();
return jedis.get(key);
} catch (Exception e) {
LOGGER.error("Cache获取失败：" + e);
return null;
} finally {
closeRedis(jedis);
}
}
/**
* 根据缓存键获取Redis缓存中的值.<br/>
*
* @param key 键.<br/>
* @return Object .<br/>
* @throws Exception
*/
public static byte[] get(byte[] obj) {
Jedis jedis = null;
try {
jedis = getResource();
return jedis.get(obj);
} catch (Exception e) {
LOGGER.error("Cache获取失败：" + e);
return null;
} finally {
closeRedis(jedis);
}
}
/**
* 判断一个key是否存在
*
* @param key
* @return
*/
public static Boolean exists(Object key) {
Jedis jedis = null;
Boolean result = false;
try {
jedis = getResource();
return jedis.exists(SerializingUtil.serialize(key));
} catch (Exception e) {
LOGGER.error("Cache获取失败：" + e);
return false;
} finally {
closeRedis(jedis);
}
}
public static Boolean existsKey(String key) {
Jedis jedis = null;
Boolean result = false;
try {
jedis = getResource();
return jedis.exists(key);
} catch (Exception e) {
LOGGER.error("Cache获取失败：" + e);
return false;
} finally {
closeRedis(jedis);
}
}
/**
* 根据缓存键清除Redis缓存中的值.<br/>
*
* @param keys
* @return
* @throws Exception
*/
public static Boolean del(Object... keys) {
Jedis jedis = null;
try {
jedis = getResource();
jedis.del(SerializingUtil.serialize(keys));
return true;
} catch (Exception e) {
LOGGER.error("Cache删除失败：" + e);
return false;
} finally {
closeRedis(jedis);
}
}
/**
* 根据缓存键清除Redis缓存中的值.<br/>
*
* @param keys
* @return
* @throws Exception
*/
public static Long del(String... keys) {
Jedis jedis = null;
try {
jedis = getResource();
jedis.del(keys);
return jedis.del(keys);
} catch (Exception e) {
LOGGER.error("Cache删除失败：" + e);
return 0l;
} finally {
closeRedis(jedis);
}
}
/**
* 保存一个对象到Redis中(缓存过期时间:使用此工具类中的默认时间) . <br/>
*
* @param key 键 . <br/>
* @param object 缓存对象 . <br/>
* @return true or false . <br/>
* @throws Exception
*/
public static Boolean save(Object key, Object object) {
return save(key, object, DEFAULT_CACHE_SECONDS);
}
/**
* 保存一个对象到redis中并指定过期时间
*
* @param key 键 . <br/>
* @param object 缓存对象 . <br/>
* @param seconds 过期时间（单位为秒）.<br/>
* @return true or false .
*/
public static Boolean save(Object key, Object object, int seconds) {
Jedis jedis = null;
try {
jedis = getResource();
jedis.set(SerializingUtil.serialize(key), SerializingUtil.serialize(object));
jedis.expire(SerializingUtil.serialize(key), seconds);
return true;
} catch (Exception e) {
e.printStackTrace();
LOGGER.error("Cache保存失败：" + e);
return false;
} finally {
closeRedis(jedis);
}
}
/**
* 删除Redis中的所有key
*
* @throws Exception
*/
public static void flushAll() {
Jedis jedis = null;
try {
jedis = pool.getResource();
jedis.flushAll();
} catch (Exception e) {
LOGGER.error("Cache清空失败：" + e);
} finally {
closeRedis(jedis);
}
}
/**
* 获取list
*
* @param <T>
* @param key
* @return list
*/
public static <T> Map<String, T> getMap(String key) throws Exception {
if (getResource() == null || !getResource().exists(key.getBytes())) {
return null;
}
byte[] in = getResource().get(key.getBytes());
return (Map<String, T>) SerializingUtil.deserialize(in);
}
/**
* 设置 map
*
* @param <T>
* @param key
*/
public static <T> void setMap(String key, Map<String, T> map) {
try {
getResource().set(key.getBytes(), SerializingUtil.serialize(map));
} catch (Exception e) {
LOGGER.warn("Set key error : " + e);
}
}
public static Long dbSize() {
Jedis jedis = null;
Long size = 0l;
try {
jedis = pool.getResource();
size = jedis.dbSize();
} catch (Exception e) {
LOGGER.error("查询库异常：" + e);
} finally {
closeRedis(jedis);
}
return size;
}
public static Set<String> keys(String pattern) {
Jedis jedis = null;
try {
jedis = pool.getResource();
Set<String> allKey = jedis.keys("*" + pattern + "*");
return allKey;
} catch (Exception e) {
LOGGER.error("Cache获取失败：" + e);
return new HashSet<String>();
} finally {
closeRedis(jedis);
}
}
public static void flushDB() {
Jedis jedis = null;
try {
jedis = pool.getResource();
jedis.flushDB();
} catch (Exception e) {
LOGGER.error("Cache清空失败：" + e);
} finally {
closeRedis(jedis);
}
}
public static boolean setex(byte[] key, byte[] value, int expire) {
Jedis redis = getResource();
try {
redis.setex(key, expire, value);
return true;
} catch (Exception e) {
LOGGER.error("保存redis：" + e);
return false;
} finally {
closeRedis(redis);
}
}
public static boolean setex(String key, String value, int expire) {
Jedis redis = getResource();
try {
redis.setex(key, expire, value);
return true;
} catch (Exception e) {
LOGGER.error("保存redis：" + e);
return false;
} finally {
closeRedis(redis);
}
}
public static boolean setByte(byte[] key, byte[] value) {
Jedis redis = getResource();
try {
redis.set(key, value);
return true;
} catch (Exception e) {
LOGGER.error("保存redis：" + e);
return false;
} finally {
closeRedis(redis);
}
}
public void afterPropertiesSet() throws Exception {
// TODO Auto-generated method stub
}
}