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JRedis的基本操作，基本数据类型操作

news 2025/7/8 23:31:43

Redis的基本数据类型：

string
hash
list
set
zset

{public static void main(String[] args) {Jedis jedis = new Jedis("127.0.0.1", 6379);// stringjedis.set("hello", "word");String hello = jedis.get("hello");System.out.println(hello);// hashjedis.hset("hello:world", "version", "111");jedis.hset("hello:world", "name", "jedis-redis");Map<String, String> stringStringMap = jedis.hgetAll("hello:world");System.out.println(stringStringMap);// listjedis.rpush("namelist", "11", "22");List<String> namelist = jedis.lrange("namelist", 0, 1);System.out.println(namelist);// setjedis.sadd("subject", "math", "Math", "abc", "abc");Set<String> subject = jedis.smembers("subject");System.out.println(subject);// zsetjedis.zadd("nums", 1, "ming");jedis.zadd("nums", 4, "zhang");jedis.zadd("nums", 2, "wang");Set<String> nums = jedis.zrange("nums", 0, 4);System.out.println(nums);jedis.close();}
}

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Jedis线程池比Jedis稳定，且易于管理。

{public static void main(String[] args) {JedisPoolConfig poolConfig = new JedisPoolConfig();JedisPool jedisPool = new JedisPool(poolConfig, "127.0.0.1", 6379, 20000);Jedis jedis = null;try{jedis = jedisPool.getResource();jedis.set("pool", "jeditpool");String result = jedis.get("pool");System.out.println(result);} catch (Exception e) {e.printStackTrace();} finally {assert jedis != null;jedis.close();}}
}

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JedisPool的Jedis对象最多默认为8个

package com.codeiteasy.service;import org.springframework.stereotype.Service;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;import java.time.Duration;
import java.util.concurrent.atomic.AtomicInteger;@Service
public class JedisPoolService {public static void main(String[] args) throws InterruptedException {JedisPoolConfig poolConfig = new JedisPoolConfig();poolConfig.setMaxWait(Duration.ofSeconds(2));JedisPool jedisPool = new JedisPool(poolConfig, "127.0.0.1", 6379, 20000);AtomicInteger atom = new AtomicInteger(0);for (int i = 0; i < 15; i++) {Thread t1 = new Thread(() -> {try{Jedis jedis = null;jedis = jedisPool.getResource();jedis.set("pool", "jeditpool");String result = jedis.get("pool");int x = atom.incrementAndGet();System.out.println(result+x);} catch (Exception e) {e.printStackTrace();}});t1.start();t1.join();}}
}

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更改用后关闭

package com.codeiteasy.service;import org.springframework.stereotype.Service;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;import java.time.Duration;
import java.util.concurrent.atomic.AtomicInteger;@Service
public class JedisPoolService {public static void main(String[] args) throws InterruptedException {JedisPoolConfig poolConfig = new JedisPoolConfig();poolConfig.setMaxWait(Duration.ofSeconds(2));JedisPool jedisPool = new JedisPool(poolConfig, "127.0.0.1", 6379, 20000);AtomicInteger atom = new AtomicInteger(0);for (int i = 0; i < 15; i++) {Thread t1 = new Thread(() -> {Jedis jedis = null;try{jedis = jedisPool.getResource();jedis.set("pool", "jeditpool");String result = jedis.get("pool");int x = atom.incrementAndGet();System.out.println(result+x);} catch (Exception e) {e.printStackTrace();} finally {jedis.close();}});t1.start();t1.join();}}
}