创建redis连接池及调用方法

package cc.zenking.edu.info.utils;

import javax.annotation.PostConstruct;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.stereotype.Component;

import lombok.extern.slf4j.Slf4j;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;

@Component
@Slf4j
public class RedisUtils {

	@Autowired
	private Environment env;
	
	public static String ADDR;
	// Redis服务器IP
	/*@Value("${redis.server}")
	public void setStatic(String redisServer) {
		RedisUtils.ADDR = redisServer;
      }*/
	// Redis的端口号
	private static int PORT;
	// 可用连接实例的最大数目，默认值为8；
	// 如果赋值为-1，则表示不限制；如果pool已经分配了maxActive个jedis实例，则此时pool的状态为exhausted(耗尽)。
	private static int MAX_ACTIVE = 1024;
	// 控制一个pool最多有多少个状态为idle(空闲的)的jedis实例，默认值也是8。
	private static int MAX_IDLE = 200;
	// 等待可用连接的最大时间，单位毫秒，默认值为-1，表示永不超时。如果超过等待时间，则直接抛出JedisConnectionException；
	private static int MAX_WAIT = 10000;

	// 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；
	private static boolean TEST_ON_BORROW = true;
	private static JedisPool jedisPool = null;
	
	/**
	 * 初始化Redis连接池
	 */
	@PostConstruct
	public void init() {
		RedisUtils.ADDR = env.getProperty("redis.server.url");
		RedisUtils.PORT = Integer.parseInt(env.getProperty("redis.server.port"));
		log.info("==ADDR=="+ADDR);
		log.info("==PORT=="+PORT);
		try {
			JedisPoolConfig config = new JedisPoolConfig();
			config.setMaxTotal(MAX_ACTIVE);
			config.setMaxIdle(MAX_IDLE);
			config.setMaxWaitMillis(MAX_WAIT);
			config.setTestOnBorrow(TEST_ON_BORROW);
			jedisPool = new JedisPool(config, ADDR, PORT);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	
	/**
	 * 获取Jedis实例
	 * 
	 * @return
	 */
	public synchronized static Jedis getJedis() {
		try {
			if (jedisPool != null) {
				Jedis resource = jedisPool.getResource();
				return resource;
			} else {
				return null;
			}
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
	}

	/**
	 * 释放jedis资源
	 * 
	 * @param jedis
	 */
	public static void returnResource(final Jedis jedis) {
		if (jedis != null) {
			jedisPool.returnResourceObject(jedis);
		}
	}
}

package cc.zenking.edu.info.utils;

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

import org.springframework.stereotype.Component;

import redis.clients.jedis.Jedis;

/**
 * @author chanjing
 *
 */
@Component("redisClient")
public class RedisClinet {

	/**
	 *  存储一周
	 */
	long SESSION_CACHE_TIME = 336 * 60 * 1000;

	static {

	}

	/**
	 * 通过key删除（字节）
	 * 
	 * @param key
	 */
	public void del(byte[] key) {
		Jedis jedis = RedisUtils.getJedis();
		jedis.del(key);
		RedisUtils.returnResource(jedis);
	}

	/**
	 * 通过key删除
	 * 
	 * @param key
	 */
	public void del(String key) {
		Jedis jedis = RedisUtils.getJedis();
		jedis.del(key);
		RedisUtils.returnResource(jedis);
	}

	/**
	 * 添加key value 并且设置存活时间(byte)
	 * 
	 * @param key
	 * @param value
	 * @param liveTime
	 */
	public void set(byte[] key, byte[] value, int liveTime) {
		Jedis jedis = RedisUtils.getJedis();
		jedis.set(key, value);
		jedis.expire(key, liveTime);
		RedisUtils.returnResource(jedis);
	}

	/**
	 * 添加key value 并且设置存活时间
	 * 
	 * @param key
	 * @param value
	 * @param liveTime
	 */
	public void set(String key, String value, int liveTime) {
		Jedis jedis = RedisUtils.getJedis();
		jedis.set(key, value);
		jedis.expire(key, liveTime);
		RedisUtils.returnResource(jedis);
	}

	/**
	 * 添加key value
	 * 
	 * @param key
	 * @param value
	 */
	public void set(String key, String value) {
		Jedis jedis = RedisUtils.getJedis();
		jedis.set(key, value);
		RedisUtils.returnResource(jedis);
	}

	/**
	 * 添加key value (字节)(序列化)
	 * 
	 * @param key
	 * @param value
	 */
	public void set(String key, Object value) {
		Jedis jedis = RedisUtils.getJedis();
		jedis.set(key.getBytes(), SerializeUtil.serialize(value));
		jedis.pexpire(key, SESSION_CACHE_TIME);
		RedisUtils.returnResource(jedis);
	}

	/**
	 * 获取redis value (String)
	 * 
	 * @param key
	 * @return
	 */
	public String get(String key) {
		Jedis jedis = RedisUtils.getJedis();
		String value = jedis.get(key);
		RedisUtils.returnResource(jedis);
		return value;
	}

	/**
	 * 获取redis value (byte [] )(反序列化)
	 * 
	 * @param key
	 * @return
	 */
	public Object get(byte[] key) {
		Jedis jedis = RedisUtils.getJedis();
		Object value = SerializeUtil.unserialize(jedis.get(key));
		RedisUtils.returnResource(jedis);
		return value;
	}

	/**
	 * 通过正则匹配keys
	 * 
	 * @param pattern
	 * @return
	 */
	public Set<String> keys(String pattern) {
		Jedis jedis = RedisUtils.getJedis();
		Set<String> value = jedis.keys(pattern);
		RedisUtils.returnResource(jedis);
		return value;
	}

	/**
	 * 检查key是否已经存在
	 * 
	 * @param key
	 * @return
	 */
	public boolean exists(String key) {
		Jedis jedis = RedisUtils.getJedis();
		boolean value = jedis.exists(key);
		RedisUtils.returnResource(jedis);
		return value;
	}

	/******************* redis list操作 ************************/
	/**
	 * 往list中添加元素
	 * 
	 * @param key
	 * @param value
	 */
	public void lpush(String key, String value) {
		Jedis jedis = RedisUtils.getJedis();
		jedis.lpush(key, value);
		RedisUtils.returnResource(jedis);
	}

	public void rpush(String key, String value) {
		Jedis jedis = RedisUtils.getJedis();
		jedis.rpush(key, value);
		RedisUtils.returnResource(jedis);
	}

	/**
	 * 数组长度
	 * 
	 * @param key
	 * @return
	 */
	public Long llen(String key) {
		Jedis jedis = RedisUtils.getJedis();
		Long len = jedis.llen(key);
		RedisUtils.returnResource(jedis);
		return len;
	}

	/**
	 * 获取下标为index的value
	 * 
	 * @param key
	 * @param index
	 * @return
	 */
	public String lindex(String key, Long index) {
		Jedis jedis = RedisUtils.getJedis();
		String str = jedis.lindex(key, index);
		RedisUtils.returnResource(jedis);
		return str;
	}

	public String lpop(String key) {
		Jedis jedis = RedisUtils.getJedis();
		String str = jedis.lpop(key);
		RedisUtils.returnResource(jedis);
		return str;
	}

	public List<String> lrange(String key, long start, long end) {
		Jedis jedis = RedisUtils.getJedis();
		List<String> str = jedis.lrange(key, start, end);
		RedisUtils.returnResource(jedis);
		return str;
	}

	/********************* redis list操作结束 **************************/

	/**
	 * 清空redis 所有数据
	 * 
	 * @return
	 */
	public String flushDB() {
		Jedis jedis = RedisUtils.getJedis();
		String str = jedis.flushDB();
		RedisUtils.returnResource(jedis);
		return str;
	}

	/**
	 * 查看redis里有多少数据
	 */
	public long dbSize() {
		Jedis jedis = RedisUtils.getJedis();
		long len = jedis.dbSize();
		RedisUtils.returnResource(jedis);
		return len;
	}

	/**
	 * 检查是否连接成功
	 * 
	 * @return
	 */
	public String ping() {
		Jedis jedis = RedisUtils.getJedis();
		String str = jedis.ping();
		RedisUtils.returnResource(jedis);
		return str;
	}

}

package cc.zenking.edu.info.utils;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

public class SerializeUtil {
	public static byte[] serialize(Object object) {
        ObjectOutputStream oos = null;
         ByteArrayOutputStream baos = null;
         try {
              // 序列化
             baos = new ByteArrayOutputStream();
             oos = new ObjectOutputStream(baos);
             oos.writeObject(object);
              byte[] bytes = baos.toByteArray();
              return bytes;
        } catch (Exception e) {

        }
         return null;
  }

   public static Object unserialize( byte[] bytes) {
        ByteArrayInputStream bais = null;
         try {
              // 反序列化
             bais = new ByteArrayInputStream(bytes);
             ObjectInputStream ois = new ObjectInputStream(bais);
              return ois.readObject();
        } catch (Exception e) {

        }
         return null;
  }
}

创建redis连接池及调用方法

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