25.2. Java操作Redis

25.2.1. 连接Redis

package aom;

import redis.clients.jedis.Jedis;

public class RedisJava {
    public static void main(String[] args) {
        // 连接本地redis数据库
        Jedis jedis = new Jedis("localhost");
        System.out.println("连接成功!");
        //查看服务是否运行
        System.out.println("服务正在运行：" + jedis.ping());
    }
}

25.2.2. Redis插入字符串

package bom;

import redis.clients.jedis.Jedis;

public class redisStringJava {
    public static void main(String[] args) {
        Jedis jedis = new Jedis("localhost");
        System.out.println("连接成功");
        // 设置redis字符串数据
        jedis.set("CodngDictkey1", "www.codingDict.com1");
        jedis.set("CodngDictkey2", "www.codingDict.com2");
        // 获取存储数据并输出
        System.out.println("redis 存储的字符串为:" + jedis.get("CodngDictkey1"));
        System.out.println("redis 存储的字符串为:" + jedis.get("CodngDictkey2"));
    }
}

25.2.3. Redis插入列表

package com;

import redis.clients.jedis.Jedis;
import java.util.List;

public class RedisListJava {
    public static void main(String[] args) {
        Jedis jedis = new Jedis("localhost");
        System.out.println("连接成功");
        //存储数据到列表中
        jedis.lpush("tutorial-list", "Redis");
        jedis.lpush("tutorial-list", "Mongodb");
        jedis.lpush("tutorial-list", "Mysql");
        // 获取存储的数据并输出
        List<String> list = jedis.lrange("tutorial-list", 0 ,2);
        for(int i=0; i<list.size(); i++) {
            System.out.println("列表项为: "+list.get(i));
        }
    }
}

25.2.4. Redis获取key

package dom;

import redis.clients.jedis.Jedis;

import java.util.Iterator;
import java.util.Set;

public class RedisKeyJava {
    public static void main(String[] args) {
        //连接本地的 Redis 服务
        Jedis jedis = new Jedis("localhost");
        System.out.println("连接成功");

        // 获取数据并输出
        Set<String> keys = jedis.keys("*");
        Iterator<String> it = keys.iterator();
        while (it.hasNext()) {
            String key = it.next();
            System.out.println("key --->:" + key);
        }
    }
}