Java操作redis

1.引入相关jar包

<dependencies>
    <dependency>
        <groupId>redis.clients</groupId>
        <artifactId>jedis</artifactId>
        <version>3.1.0</version>
    </dependency>
</dependencies>

2.java代码

public class TestReidsCommon {
​
    public static void main(String[] args) {
        // 创建连接
        Jedis jedis = new Jedis("192.168.120.129", 6379);
        // 设置密码 如果没有密码可以不设置
        jedis.auth("123456");
        // key
        Set<String> keys = jedis.keys("*");
        for (Iterator<String> iterator = keys.iterator(); iterator.hasNext();) {
            String key = (String) iterator.next();
            System.out.println(key);
        }
        System.out.println("jedis.exists====>" + jedis.exists("k2"));
        System.out.println(jedis.ttl("k1"));
        // String
        // jedis.append("k1","myreids");
        System.out.println(jedis.get("k1"));
        jedis.set("k4", "k4_redis");
        System.out.println("----------------------------------------");
        jedis.mset("str1", "v1", "str2", "v2", "str3", "v3");
        System.out.println(jedis.mget("str1", "str2", "str3"));
        // list
        System.out.println("----------------------------------------");
        // jedis.lpush("mylist","v1","v2","v3","v4","v5");
        List<String> list = jedis.lrange("mylist", 0, -1);
        for (String element : list) {
            System.out.println(element);
        }
        // set
        jedis.sadd("orders", "jd001");
        jedis.sadd("orders", "jd002");
        jedis.sadd("orders", "jd003");
        Set<String> set1 = jedis.smembers("orders");
        for (Iterator<String> iterator = set1.iterator(); iterator.hasNext();) {
            String string = (String) iterator.next();
            System.out.println(string);
        }
        jedis.srem("orders", "jd002");
        System.out.println(jedis.smembers("orders").size());
        // hash
        jedis.hset("hash1", "userName", "lisi");
        System.out.println(jedis.hget("hash1", "userName"));
        Map<String, String> map = new HashMap<String, String>();
        map.put("telphone", "15902738715");
        map.put("address", "whykq");
        map.put("email", "leijharvin@163.com");
        jedis.hmset("hash2", map);
        List<String> result = jedis.hmget("hash2", "telphone", "email");
        for (String element : result) {
            System.out.println(element);
        }
        // zset
        jedis.zadd("zset01", 60d, "v1");
        jedis.zadd("zset01", 70d, "v2");
        jedis.zadd("zset01", 80d, "v3");
        jedis.zadd("zset01", 90d, "v4");
​
        Set<String> s1 = jedis.zrange("zset01", 0, -1);
        for (Iterator<String> iterator = s1.iterator(); iterator.hasNext();) {
            String string = (String) iterator.next();
            System.out.println(string);
        }
        jedis.close();
    }
}

3.连接池
1.jedispool 表示jedis的连接池

package com.myl.util;

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

public class JedisPoolUtil {
    private static JedisPool jedisPool;
    public static JedisPool getJedisPool(){
        //Jedis连接池配置类
        JedisPoolConfig poolConfig=new JedisPoolConfig();
        poolConfig.setMaxTotal(20);//最大活跃连接数
        poolConfig.setMaxIdle(10);//最大空闲数
        poolConfig.setMaxWaitMillis(10000);//最长等待时间
         jedisPool=new JedisPool("192.168.175.100",6379);
         return jedisPool;
    }

}

2.测试代码

package com.myl;

import com.myl.util.JedisPoolUtil;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
public class Demo2 {
    public static void main(String[] args) {
        JedisPool jedisPool = JedisPoolUtil.getJedisPool();
        long l = System.currentTimeMillis();
        for (int i = 0; i <100 ; i++) {
            Jedis jedis = jedisPool.getResource();//获取jedis连接对象
            System.out.println(jedis.ping());
            jedis.close();
        }
        long end = System.currentTimeMillis();
        System.out.println("耗时："+(end-l));


    }
}