RedisUtil

1.添加Redis依赖包

 <dependency>
    <groupId>redis.clients</groupId>
    <artifactId>jedis</artifactId>
    <version>3.3.0</version>
</dependency>

2.RedisUtil实现代码

import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;
/**
 * description * created by A on 2021/3/26 */public class RedisUtil1 {
    public static JedisPool jedisPool=null;
    public static Jedis getJedis(){
        if(jedisPool==null){
            JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
            jedisPoolConfig.setMaxTotal(100); //最大可用连接数
            jedisPoolConfig.setBlockWhenExhausted(true); //连接耗尽后是否等待
            jedisPoolConfig.setMaxWaitMillis(2000); //等待时间
            jedisPoolConfig.setMaxIdle(5); //最大闲置连接数
            jedisPoolConfig.setMinIdle(5); //最小闲置连接数
            jedisPoolConfig.setTestOnBorrow(true); //连接的时候测试一下ping pong
            jedisPool=new JedisPool(jedisPoolConfig,"hadoop102",6379,1000) ;
            System.out.println("开辟连接池");
            return jedisPool.getResource();
        }else{
            return jedisPool.getResource();
        }
    }
}