RedisManager创建redis资源池获取

package com.ml0115.service;

import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;

public class RedisManager {
//合理的JedisPool资源池参数设置能为业务使用Redis保驾护航
   private  static  JedisPool  jedisPool;
  //编辑Redis链接的代码
  static {
    JedisPoolConfig  jedisPoolConfig=new  JedisPoolConfig();
    jedisPoolConfig.setMaxIdle(10);//资源池允许最大空闲的连接数
    jedisPoolConfig.setMaxTotal(10);//资源池中最大连接数
    jedisPool=new  JedisPool(jedisPoolConfig,"127.0.0.1",6379);
  }
  public  static   Jedis  getJedis()  throws  Exception{
    if(null!=jedisPool) {
      return  jedisPool.getResource();
    }
    throw  new  Exception("JedisPool  was  not   init");
  }
}

Service的调用：

package com.ml0115.service;

import java.util.List;
import java.util.UUID;

import org.springframework.stereotype.Service;

import redis.clients.jedis.Jedis;
import redis.clients.jedis.Transaction;

@Service
public class RedisService {
  // 分布式锁
  public String getLock(String key, int timeout) {
    try {
      Jedis jedis = RedisManager.getJedis();
      String value = UUID.randomUUID().toString();// UUID
      long end = System.currentTimeMillis() + timeout;
      while (System.currentTimeMillis() < end) {
        if (jedis.setnx(key, value) == 1) {
          jedis.expire(key, timeout);
          // 锁设置成功，redis操作成功
          return value;
        }
        if (jedis.ttl(key) == -1) {// 监测过期时间
          jedis.expire(key, timeout);
        }
        Thread.sleep(1000);
      }

    } catch (Exception e) {
      e.printStackTrace();
    }
    return null;
  }

  // 释放锁
  public boolean realeseLock(String key, String value) {
    try {
      Jedis jedis = RedisManager.getJedis();
      while (true) {
        jedis.watch(key);// watch
        if (value.equals(jedis.get(key))) {
          Transaction transaction = jedis.multi();
          transaction.del(key);
          List<Object> list = transaction.exec();
          if (list == null) {
            continue;
          }
          return true;
        }
        jedis.unwatch();
        break;

      }

    } catch (Exception e) {
      e.printStackTrace();
    }
    return false;
  }

}