一.序列化工具类（因为Jedis的键是区分String，byte类型的，所以使用序列化成byte，再使用反序列化显示）
package com.yk;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;public class SerialoizebleUtil { /** * 将对象序列化:要求对象要实现序列化接口 */ public static byte[] serialize(Object obj ){ ObjectOutputStream oos = null; //对象输出流 ByteArrayOutputStream baos = null;//字节数组输出流 byte[] bt=null; try { baos = new ByteArrayOutputStream(); oos=new ObjectOutputStream(baos); oos.writeObject(obj); bt=baos.toByteArray(); } catch (IOException e) { e.printStackTrace(); }finally{ if(baos!=null){ try { baos.close(); } catch (IOException e) { e.printStackTrace(); } } } return bt; } //反序列化，将byte字节转换为对象 public static Object unSerialize(byte[] bt){ ByteArrayInputStream bais = null; Object object =null; try { bais = new ByteArrayInputStream(bt); ObjectInputStream ois = new ObjectInputStream(bais); object = ois .readObject(); } catch (Exception e) { e.printStackTrace(); }finally{ if(bais!=null){ try { bais.close(); } catch (IOException e) { e.printStackTrace(); } } } return object; } }二.redis连接池类(读取配置文件，创建redis连接池，获取redis连接)
package com.yk;import redis.clients.jedis.Jedis;import redis.clients.jedis.JedisPool;import redis.clients.jedis.JedisPoolConfig;import java.util.ResourceBundle;public class RedisPool { private static JedisPool pool =null; /*使用静态代码块，优先加载顺序在static方法之前 * 初始化redis连接配置 */ static { //得到redis.properties 中的配置信息 ResourceBundle bundle = ResourceBundle.getBundle("redis"); if(bundle==null){ throw new IllegalArgumentException("[redis.properties] is not found"); } //配置信息对象config JedisPoolConfig config = new JedisPoolConfig(); config.setMaxTotal(Integer.valueOf(bundle.getString("redis.pool.maxActive"))); config.setMaxIdle(Integer.valueOf(bundle.getString("redis.pool.maxIdle"))); config.setMaxWaitMillis(Long.valueOf(bundle.getString("redis.pool.maxWait"))); config.setTestOnBorrow(Boolean.valueOf(bundle.getString("redis.pool.testOnBorrow"))); config.setTestOnReturn(Boolean.valueOf(bundle.getString("redis.pool.testOnReturn"))); //创建redis连接池 pool = new JedisPool( config,bundle.getString("redis.ip"),Integer.valueOf(bundle.getString("redis.port"))); } /** * 获取jedis实例 * 在获取jedis实例方法前，加上序列化 * @return */ public synchronized static Jedis getJedis(){ if(pool!=null){ return pool.getResource(); }else{ return null; } } /** * 释放jedis实例资源 */ public static void returnResource(Jedis jedis){ if(jedis!=null){ jedis.close(); } }}
三.redis配置文件(详细配置可以自己百度，这里只写出最基本的配置)
redis.pool.maxActive=1024redis.pool.maxIdle=200redis.pool.maxWait=100redis.pool.testOnBorrow=trueredis.pool.testOnReturn=trueredis.ip=127.0.0.1redis.port=6379
四.封装Redis的基本操作的接口
package com.yk;import java.util.List;public interface RedisDo { public boolean RedisExist(Object key); public void RedisSet(Object key, Object value); public Object RedisGet(Object key); public Object RedisGetSet(Object key, Object value); public void RedisMset(Object... keysvalues); public List<Object> RedisMget(Object... keys); public void RedisSetex(Object key, int seconds, Object value); public void RedisExpire(Object key, int seconds); public void RedisPersist(Object key); public Long RedisTTL(Object key); public void RedisDel(Object... keys); public void RedisRename(Object key, Object newkey);}五.接口实现
package com.yk;import redis.clients.jedis.Jedis;import java.util.LinkedList;import java.util.List;public class RedisDaoImpl implements RedisDo{ /** * 从连接池中获取实例 * @return */ public static Jedis GetJedis(){ return RedisPool.getJedis(); } /** * 序列化 * @param object * @return */ public byte[] serializeObj(Object object){ return SerialoizebleUtil.serialize(object); } /** * 反序列化 * @param bt * @return */ public Object unSerializeByte(byte[] bt){ return SerialoizebleUtil.unSerialize(bt); } /** * 判断键是否存在 * @param key * @return */ public boolean RedisExist(Object key) { return GetJedis().exists(serializeObj(key)); } /** * set * @param key * @param value */ public void RedisSet(Object key, Object value) { GetJedis().set(serializeObj(key),serializeObj(value)); } /** * get * @param key * @return */ public Object RedisGet(Object key) { return unSerializeByte(GetJedis().get(serializeObj(key))); } /** * 将给定 key 的值设为 value ，并返回 key 的旧值(old value)。 * @param key * @param value * @return */ public Object RedisGetSet(Object key, Object value) { return unSerializeByte(GetJedis().getSet(serializeObj(key),serializeObj(value))); } /** * 存入多个键值对 自己封装 * @param keysvalues */ public void RedisMset(Object... keysvalues){ List<Object> list = new LinkedList<Object>(); int i =0; if(keysvalues!=null){ for (Object object :keysvalues){ list.add(i,object); i++; } } for (i=0;i<list.size();i++){ GetJedis().set(serializeObj(list.get(i)),serializeObj(list.get(i+1))); i=i+1; } } /** * 输入多个键得到List<>值 * @param keys * @return */ public List<Object> RedisMget(Object...keys){ List<byte[]> keyslist = new LinkedList<byte[]>(); int i =0; if(keys!=null){ for(Object object :keys){ keyslist.add(i,serializeObj(object)); i++; } } List<Object> listObj = new LinkedList<Object>(); for (i=0;i<keyslist.size();i++){ listObj.add(i,unSerializeByte(GetJedis().get(keyslist.get(i)))); } return listObj; } /** * 设置一个有过期时间的key-value对 * @param key * @param seconds * @param value */ public void RedisSetex(Object key, int seconds,Object value) { GetJedis().setex(serializeObj(key),seconds,serializeObj(value)); } /** * 单独设置键的过期时间 * @param key * @param seconds */ public void RedisExpire(Object key, int seconds) { GetJedis().expire(serializeObj(key),seconds); } /** * 移除键的过期时间，键保持持久 * @param key */ public void RedisPersist(Object key) { GetJedis().persist(serializeObj(key)); } /** * 查看键的剩余过期时间 * @param key * @return */ public Long RedisTTL(Object key) { return GetJedis().ttl(serializeObj(key)); } /** * 删除一个或者多个键 * @param keys */ public void RedisDel(Object... keys) { List<Object> list = new LinkedList<Object>(); int i =0; if(keys!=null){ for (Object object :keys){ list.add(i,object); i++; } } for (i=0;i<list.size();i++){ GetJedis().del(serializeObj(list.get(i))); } } /** * 重命名key * @param key * @param newkey */ public void RedisRename(Object key, Object newkey) { GetJedis().rename(serializeObj(key),serializeObj(newkey)); }} 六.上面使用的是IDEA，代码可以直接生产Jar文件使用，需要更多的操作可以自己封装Jedis！
To be continue......
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