Redis - Jedis 操作 Redis

要导入的包

    <dependency>
      <groupId>redis.clients</groupId>
      <artifactId>jedis</artifactId>
      <version>2.9.0</version>
    </dependency>

代码

    public void redis(){
        //1.生成一个jedis对象，这个对象负责和指定Redis节点进行通信
        Jedis jedis = new Jedis("124.223.94.17", 6379);
        //带密码需要执行认证方法
        jedis.auth("leviAckerman2641949252");

        String ping = jedis.ping();
    }

 

池

package com.didinx.filter;

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

/**
 * @author o_0sky
 * @date 2019/2/14 1:33
 */
public class JedisPool1 {
    public static void main(String[] args) {
        //生成连接池配置对象，设置配置项
        JedisPoolConfig config = new JedisPoolConfig();
        //最大连接数
        config.setMaxTotal(100);
        //最大空闲数
        config.setMaxIdle(20);
        //获得连接池
        JedisPool jedisPool = new JedisPool(config, "localhost", 6379);
        Jedis jedis = null;
        try {
            //从连接池获取连接
            jedis = jedisPool.getResource();
            //给连接赋值
            jedis.set("age", "30");
            //从连接池中取值并打印
            System.out.println(jedis.get("age"));
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            //此处jedis.close()并不是销毁连接，而是将连接返回连接池
            if (null != jedis) {
                jedis.close();
            }
        }
        //电脑关闭时，关闭连接池
        if (null != jedisPool) {
            jedisPool.close();
        }

    }
}

工具类

package didinx;

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

import java.util.ResourceBundle;

/**
 * @author o_0sky
 * @date 2019/2/14 1:49
 */
public class JedisUtil {
    //设置参数
    private static String host;
    private static int port;
    private static int maxtotal;
    private static int maxwaitmillis;
    private static JedisPool jedisPool;

    //加载配置文件并给参数赋值
    static {
        ResourceBundle rb = ResourceBundle.getBundle("jedis");
        maxtotal = Integer.parseInt(rb.getString("maxtotal"));
        maxwaitmillis = Integer.parseInt(rb.getString("maxwaitmillis"));
        port = Integer.parseInt(rb.getString("port"));
        host = rb.getString("host");
    }

    /**
     * 初始化连接池
     */
    static {
        JedisPoolConfig config = new JedisPoolConfig();
        config.setMaxTotal(maxtotal);
        config.setMaxWaitMillis(maxwaitmillis);
        jedisPool = new JedisPool(config, host, port);
    }

    /**
     * 获取连接方法
     *
     * @return
     */
    public static Jedis getJedis() {
        return jedisPool.getResource();
    }

    /**
     * 释放资源
     *
     * @param jedis
     */
    public static void closeJedis(Jedis jedis) {
        if (null != jedis) {
            jedis.close();
        }
    }
}