idea + maven 使用jedis 连接redis

首先添加jar包

jedis(操作redis)、commons-pool（连接池）、junit（测试）

<dependency>
  <groupId>redis.clients</groupId>
  <artifactId>jedis</artifactId>
  <version>2.9.0</version>
</dependency>
<dependency>
  <groupId>commons-pool</groupId>
  <artifactId>commons-pool</artifactId>
  <version>20030825.183949</version>
</dependency>
<dependency>
  <groupId>junit</groupId>
  <artifactId>junit</artifactId>
  <version>4.12</version>
</dependency>

不用连接池连接redis

import redis.clients.jedis.Jedis;

public class RedisUtil {
private Jedis jedis;
    private String url = "127.0.0.1";
    public RedisUtil(){
jedis = new Jedis(url);
    }

public void setDemo(String key,String value){
jedis.set(key,value);
    }

public String getDemo(String key){
        String value = jedis.get(key);
        return value;
    }

}

使用连接池连接redis

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

public class RedisUtilPool {
//Redis 的  地址
    private String url = "127.0.0.1";
    //redis的端口号
    private int port = 6379;
    //可连接的最大数目，默认为8，-1为不限制
    private   int MAX_ACTIVE = 1024;
    //控制一个pool最多有多少个状态为空闲，默认为8
    private int MAX_IDLE = 1024;
    //等待连可用的最大时间，默认为-1表示永不超时
    //如果超时，抛出JedisConnectionException异常
    private int MAX_WAIT = 10000;
    private int TIMEOUT = 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;


    public RedisUtilPool() throws JedisConnectionException{
        JedisPoolConfig config = new JedisPoolConfig();
        //config.setMaxActive(MAX_ACTIVE);
        config.setMaxIdle(MAX_IDLE);
        config.setMaxWaitMillis(10000);
        config.setTestOnBorrow(TEST_ON_BORROW);
        jedisPool = new JedisPool(config,url,port,TIMEOUT);
    }


/**
 * 获取Jedis实例
 */

 public Jedis getJedis()throws JedisConnectionException {
return  jedisPool.getResource();
    }

}

测试

import main.com.NewCode.RedisUtil.RedisUtil;
import main.com.NewCode.RedisUtil.RedisUtilPool;
import org.junit.Test;
import redis.clients.jedis.Jedis;

public class testRedis {
private RedisUtil redisUtil = new RedisUtil();

    @Test
    public void testRedis(){
        RedisUtil redisUtil = new RedisUtil();
        redisUtil.setDemo("test","1");
        System.out.print(redisUtil.getDemo("test"));
    }

@Test
    public void testRedisPool() {
        RedisUtilPool redisUtilPool = new RedisUtilPool();
        Jedis jedis = redisUtilPool.getJedis();
        jedis.set("test2", "2");
        System.out.println(jedis.get("test2"));
    }
}