1.说明

Redis不仅可以使用命令行操作，
也支持大部分主流编程语言的客户端，
本文介绍Java客户端Jedis的使用，
Jedis API提供了完整的Redis命令，
能够和Redis命令行一一对应上。

2.引入Pom依赖

在pom.xml引入Jedis的依赖：

<dependency><groupId>redis.clients</groupId><artifactId>jedis</artifactId><version>3.3.0</version>
</dependency>

3.创建Jedis连接

package com.yuwen.framework.demo;
import redis.clients.jedis.Jedis;public class JedisDemo {public static void main(String[] args) {// 1.创建Jedis连接String host = "10.21.13.14";int port = 6379;Jedis jedis = new Jedis(host, port);// 2.检测连通性String result = jedis.ping();System.out.println("result=" + result);// 3.关闭Jedis连接jedis.close();}
}

配置真实的Redis服务器地址和端口，
运行main方法输出：

result=PONG

上面输出的pong对应ping命令，
表示Redis服务器连接正常。

4.Key相关测试

@Test
public void testKeys() {jedis.set("k1", "v1");jedis.set("k2", "v2");jedis.set("k3", "v3");Set<String> keys = jedis.keys("*");System.out.println(keys);String key = "k1";String value = jedis.get(key);System.out.println(key + " value=" + value);Boolean exists = jedis.exists(key);System.out.println(key + " exists=" + exists);Long ttl = jedis.ttl(key);System.out.println(key + " ttl=" + ttl);Long del = jedis.del("k1", "k2", "k3");System.out.println("k1,k2,k3" + " del=" + del);
}

5.String相关测试

@Test
public void testSetString() {jedis.set("s1", "v1");String value = jedis.get("s1");System.out.println("s1 value=" + value);
}@Test
public void testMsetString() {jedis.mset("ms1", "mv1", "ms2", "mv2", "ms3", "mv3");List<String> mget = jedis.mget("ms1", "ms2", "ms3");System.out.println("ms1,2,3, values=" + mget);
}

6.List相关测试

@Test
public void testList() {jedis.lpush("list1", "lv1", "lv2", "lv3");List<String> list1 = jedis.lrange("list1", 0, -1);System.out.println("list1 lrange=" + list1);jedis.rpush("list2", "rv1", "rv2", "rv3");List<String> list2 = jedis.lrange("list2", 0, -1);System.out.println("list2 lrange=" + list2);jedis.rpop("list2");jedis.lpop("list2");list2 = jedis.lrange("list2", 0, -1);System.out.println("list2 lrange=" + list2);
}

7.Set相关测试

@Test
public void testSet() {String key1 = "set1";jedis.sadd(key1, "tom");jedis.sadd(key1, "jerry");jedis.sadd(key1, "lucy");Set<String> smembers = jedis.smembers(key1);System.out.println("set1 smembers=" + smembers);
}

8.Zset相关测试

@Test
public void testZset() {String key1 = "zset1";jedis.zadd(key1, 400d, "C");jedis.zadd(key1, 500d, "C++");jedis.zadd(key1, 100d, "Java");jedis.zadd(key1, 200d, "SQL");jedis.zadd(key1, 300d, "Python");Set<String> zrange1 = jedis.zrange(key1, 0, -1);System.out.println("zset1 [0,-1]=" + zrange1);Set<String> zrangeByScore1 = jedis.zrangeByScore(key1, 100, 300);System.out.println("zset1 [100,300]=" + zrangeByScore1);Set<Tuple> zrangeByScoreWithScores1 = jedis.zrangeByScoreWithScores(key1, 100, 300);System.out.println("zset1 [100,300]=" + zrangeByScoreWithScores1);Set<String> zrangeByScore2 = jedis.zrangeByScore(key1, "-inf", "+inf");System.out.println("zset1 [-inf,+inf]=" + zrangeByScore2);
}

9.Hash相关测试

@Test
public void testHash() {String key1 = "hash1";String field1 = "field1";String value1 = "value1";jedis.hset(key1, field1, value1);String hget1 = jedis.hget(key1, field1);System.out.println("hash1:field1 hget=" + hget1);String key2 = "hash2";Map<String, String> field2value = new HashMap<>();field2value.put("id", "90955");field2value.put("name", "yuwen");field2value.put("address", "changzhou");jedis.hmset(key2, field2value);List<String> hmget2 = jedis.hmget(key2, "id", "name");System.out.println("hash2:id,name hmget=" + hmget2);
}

10.参考文档

Redis 数据类型介绍Github Jedis