Jedis操作Redis

Jedis使用的基本步骤：

• 1.引入依赖
• 2.Jedis连接池配置
• 3.创建Jedis对象，建立连接
• 4.使用Jedis，方法名与Redis命令一致
• 5.释放资源
  

1.引入依赖

 <!-- jedis -->
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>3.7.0</version>
        </dependency>
        <!-- 单元测试 -->
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter</artifactId>
            <version>5.7.0</version>
            <scope>test</scope>
        </dependency>

2.Jedis连接池配置:

package com.starQeem.jedis.utils;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;
public class JedisConnectionFactory {
private static final JedisPool jedisPool;
static {
    //配置连接池
    JedisPoolConfig poolConfig = new JedisPoolConfig();
    poolConfig.setMaxTotal(8);
    poolConfig.setMaxIdle(8);
    poolConfig.setMinIdle(0);
    poolConfig.setMaxWaitMillis(1000);
    //创建连接池对象
    jedisPool = new JedisPool(poolConfig,"106.53.103.231",6379,1000,"1234");
}

public static Jedis getJedis(){
    return jedisPool.getResource();
}

}

- 3.创建Jedis对象，建立连接:

    private Jedis jedis;
@BeforeEach
void setUp() {
    //建立连接

//        jedis = new Jedis("106.53.103.231", 6379);
jedis = JedisConnectionFactory.getJedis();
//设置密码
jedis.auth("1234");
//选择库
jedis.select(0);
}

- 4.使用Jedis，方法名与Redis命令一致:

 //测试String
    @Test
    void testString() {
        //插入数据，方法名就是redis命令名称
        String result = jedis.set("name", "张三");
        System.out.println("result:" + result);
        //获取资源
        String name = jedis.get("name");
        System.out.println(name);
    }
//测试hash
@Test
void testHash() {
    //插入数据
    jedis.hset("user:5", "name", "Qeem");
    jedis.hset("user:5", "age", "18");
    //获取资源
    System.out.println(jedis.hget("user:5", "name"));
    System.out.println(jedis.hget("user:5", "age"));
    System.out.println(jedis.hgetAll("user:5"));

}

//测试list
@Test
void testList() {
    //插入数据
    jedis.lpush("star", "1", "2", "3", "4", "5");
    //获取资源
    System.out.println(jedis.lrange("star", 0, 5));
}

//测试set
@Test
void testSet() {
    //插入数据
    jedis.sadd("starQeem", "1", "2", "3", "4");
    //获取资源
    System.out.println(jedis.smembers("starQeem"));
}

//测试sorted set
@Test
void testSortedSet() {
    //插入数据
    jedis.zadd("starQeem2", 88, "星星");
    jedis.zadd("starQeem2", 99, "Qeem");
    jedis.zadd("starQeem2", 10, "pig");
    //获取资源
    System.out.println(jedis.zscore("starQeem2", "星星"));
    System.out.println(jedis.zscore("starQeem2", "Qeem"));
    System.out.println(jedis.zscore("starQeem2", "pig"));
}

- 5.释放资源:

  //释放资源
    @AfterEach
    void tearDown() {
        if (jedis != null) {
            jedis.close();
        }
    }