Icache

package com.cloud.cang.cache.redis;

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


public interface ICached {
   
   /**
    * 设置值，不设置过期时间
    * @return
    */
   void put(String key,Object value)throws Exception;
   
   /**
    * 设置值，不设置过期时间
    * @return
    */
   void put(String key,Object value, final int expireSec)throws Exception;
   
   /**
    * 设置redis超时时间
    * @return
    */
   void expireSec(String key,final int expireSec)throws Exception;
   
   /**
    * 删除 缓存
    * @param key
    * @return
    * @throws Exception
    */
   void remove(String key)throws Exception;
   /**
    * 获取缓存
    * @param key
    * @return
    * @throws Exception
    */
   Object get(String key)throws Exception;
   
   /**
    * 根据 正则表达式key 获取 列表
    * @param key
    * @return
    * @throws Exception
    */
   Set hgetKeys(String key)throws Exception;
   
   
   
   /**
    * 更新 缓存
    * @param key
    * @param value
    * @return
    * @throws Exception
    */
   void hset(String key,String hkey,Object value)throws Exception;
   

   /**
    * 获取缓存
    * @param key
    * @return
    * @throws Exception
    */
   Object hget(String key,String hkey)throws Exception;
   
   
   /**
    * 删除 缓存
    * @param key
    * @param hkey
    * @return
    * @throws Exception
    */
   Long hremove(String key,String ... hkey)throws Exception;
   /**
    * 获取 map中的所有值
    * @param key
    * @return
    * @throws Exception
    */
   <T> Set<T> hvalues(String key)throws Exception;
   
   /**
    * 根据一个key取得对应的map值
    * @param key
    * @return
    * @throws Exception
    */
   Map<String,Object> hget(String key) throws Exception;
   
   /**
    * 调用一个map对象值
    * @param key
    * @param vs
    * @throws Exception
    */
   void hset(String key,Map<String,Object> vs) throws Exception;
   
   
   
   /**
    * 自增值，并返回增加后的值
    * @param key
    * @param expireSec 数据有效期
    * @return
    * @throws Exception
    */
   Long incrAndGetForExpire(String key,int expireSec) throws Exception ;
   
   /**
    * 自增值，并返回增加后的值（没有设置失效，数据一直存放于redis）
    * @param key
    * @return
    * @throws Exception
    */
   Long incrAndGet(String key) throws Exception;
   
   /**
    * 自减值，并返回减后的值
    * @param key
    * @return
    * @throws Exception
    */
   Long decrAndGet(String key) throws Exception;
   
   /**
    * 将元素插入redis列表的左端，并返回列表的大小
    * @param key
    * @param value
    * @return
    */
   long lpush(String key,Object value) throws Exception;
   
   /**
    * 从redis列表的左端移除元素，并返回列表的大小
    * @param key
    * @return
    */
    Object lpop(String key) throws Exception;
   
   /**
    * 判断用户是否存在
    * @param key
    * @return
    * @throws Exception
    */
    boolean exists(String key) throws Exception;
   /**
    * 取得自增序列的变量值
    * @param key
    * @return
    * @throws Exception
    */
    Long getIncrOrDecrValue(String key)throws Exception;

   /**
    * 取得list的大小
    * @param key
    * @return
    * @throws Exception
    */
   Long llen(String key) throws Exception;

   /**
    * 原子增加值
    * @param key
    * @param val
    * @return
    * @throws Exception
    */
   Long incrByVal(String key, Long val) throws Exception;

   /**
    * 原子减少值
    * @param key
    * @param val
    * @return
    * @throws Exception
    */
   Long decrByVal(String key, Long val) throws Exception;
   
}


//实现

package com.cloud.cang.cache.redis;

import java.io.UnsupportedEncodingException;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import com.cloud.cang.utils.SerializeUtils;
import redis.clients.jedis.JedisCluster;


/**
 * 
 * 
 * 类功能描述: 实现redis的缓存， 基础redis集群模式
 * 
 * @author zhouhong
 * @version V1.0, 2014-5-9
 */
public class RedisCachedImpl implements ICached {
    
   
   public static final String CHARSET = "UTF-8";
   public JedisCluster redisCli;

   public void setRedisCli(JedisCluster redisCli) {
      this.redisCli = redisCli;
   }

   @Override
   public void put(String key, Object value) throws Exception {
      redisCli.set(key.getBytes(CHARSET), SerializeUtils.serialize(value) );
   }

   @Override
   public void put(String key, Object value, int expireSec) throws Exception {
      redisCli.setex(key.getBytes(CHARSET), expireSec, SerializeUtils.serialize(value));
   }

   @Override
   public void expireSec(String key, int expireSec) throws Exception {
      redisCli.expire(key, expireSec);
   }

   @Override
   public void remove(String key) throws Exception {
      redisCli.del(key);
   }

   @Override
   public Object get(String key) throws Exception {
      return SerializeUtils.deserialize(redisCli.get(key.getBytes(CHARSET)));
   }



   @Override
   public Set hgetKeys(String key) throws Exception {
      return redisCli.hkeys(key);
   }

   @Override
   public void hset(String key, String hkey, Object value) throws Exception {
      redisCli.hset(key.getBytes(CHARSET), hkey.getBytes(CHARSET), SerializeUtils.serialize(value) );
      
   }

   @Override
   public Object hget(String key, String hkey) throws Exception {
      return SerializeUtils.deserialize(redisCli.hget(key.getBytes(CHARSET), hkey.getBytes(CHARSET)));
   }

   @Override
   public Long hremove(String key, String ... hkey) throws Exception {
      return redisCli.hdel(key, hkey);
   }

   @SuppressWarnings("unchecked")
   @Override
   public <T> Set<T>  hvalues(String key) throws Exception {
      Collection<byte[]> tmp = this.redisCli.hvals(key.getBytes(CHARSET));
      Set<T> list = new HashSet<T>();
      for (byte[] bs : tmp) {
         list.add((T)SerializeUtils.deserialize(bs));
      }
      return list;
   }

   @Override
   public Long incrAndGetForExpire(String key, int expireSec) throws Exception {
      Long value= this.redisCli.incr(key);
      this.redisCli.expire(key, expireSec);
      return value;
   }
   
   public Map<String,Object> hget(String key) throws Exception{
      Map<byte[], byte[]> map=this.redisCli.hgetAll(key.getBytes(CHARSET));
      Map<String,Object> values=new HashMap<String, Object>();
      for(Map.Entry<byte[], byte[]> entry: map.entrySet()) {
         values.put(new String(entry.getKey(), CHARSET), SerializeUtils.deserialize(entry.getValue()));
      }
      return values;
   }
   
   public void hset(String key,Map<String,Object> vs) throws Exception{
      Map<byte[], byte[]> saveValue=new HashMap<byte[], byte[]>();
      for(Map.Entry<String,Object> entry: vs.entrySet()) {
         saveValue.put(entry.getKey().getBytes(CHARSET), SerializeUtils.serialize(entry.getValue()));
      }
      this.redisCli.hmset(key.getBytes(CHARSET), saveValue);
   }

   @Override
   public Long incrAndGet(String key) throws Exception {
      return this.redisCli.incr(key);
   }

   public Long getIncrOrDecrValue(String key)throws Exception {
      String val=this.redisCli.get(key);
      if(val==null){
         return 0l;
      }else{
         return Long.parseLong(val);
      }
         
   }
   
   @Override
   public Long decrAndGet(String key) throws Exception {
      return this.redisCli.decr(key);
   }

   @Override
   public long lpush(String key, Object value) throws Exception {
      return this.redisCli.lpush(key.getBytes(CHARSET), SerializeUtils.serialize(value) );
   }

   @Override
   public Object lpop(String key) throws Exception {
      return SerializeUtils.deserialize(this.redisCli.lpop(key.getBytes(CHARSET)));
   }

   @Override
   public boolean exists(String key) throws Exception {
      return this.redisCli.exists(key.getBytes(CHARSET));
   }
   @Override
   public Long llen(String key) throws Exception {
      return this.redisCli.llen(key);
   }
   @Override
   public Long incrByVal(String key,Long val) throws Exception {
      return this.redisCli.incrBy(key, val);
   }
   @Override
   public Long decrByVal(String key,Long val) throws Exception {
      return this.redisCli.decrBy(key, val);
   }
   
   public static void main(String[] args) {
      try {
         System.out.println("liqinqin".getBytes(CHARSET));
      } catch (UnsupportedEncodingException e) {
         e.printStackTrace();
      }
   }
}

Icache

原文：https://www.cnblogs.com/mimimikasa/p/15347514.html