Jedis快速入门

- - 1.Jedis使用的基本步骤：
  - - 1.1 引入依赖
    - 1.2 创建Jedis对象，建立连接
    - 1.3 使用Jedis，方法名与Redis命令一致
    - 1.4 释放资源
    - 1.5 完整代码
    - 1.6 可视化工具查看
  - 2.Jedis的连接池
  - - 2.1 代码
    - 2.2 获取连接修改如下

1.Jedis使用的基本步骤：

1.1 引入依赖

<dependency><groupId>redis.clients</groupId><artifactId>jedis</artifactId><version>3.7.0</version>
</dependency>

1.2 创建Jedis对象，建立连接

void setUp() {jedis = new Jedis("255.255.255.255", 6379);jedis.auth("123456");jedis.select(0);
}

1.3 使用Jedis，方法名与Redis命令一致

@Test
public void demo1() {String result = jedis.set("name", "虎哥");System.out.println("result=" + result);String name = jedis.get("name");System.out.println("name=" + name);
}@Test
public void demo2() {jedis.hset("user:1", "name", "Jack");jedis.hset("user:1", "age", "21");Map<String, String> map = jedis.hgetAll("user:1");System.out.println(map);}

1.4 释放资源

void tearDown() {if (jedis != null) {jedis.close();}
}

1.5 完整代码

import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import redis.clients.jedis.Jedis;import java.util.Map;public class JedisTest {private Jedis jedis;@BeforeEachvoid setUp() {jedis = new Jedis("255.255.255.255", 6379);jedis.auth("123456");jedis.select(0);}@AfterEachvoid tearDown() {if (jedis != null) {jedis.close();}}@Testpublic void demo1() {String result = jedis.set("name", "虎哥");System.out.println("result=" + result);String name = jedis.get("name");System.out.println("name=" + name);}@Testpublic void demo2() {jedis.hset("user:1", "name", "Jack");jedis.hset("user:1", "age", "21");Map<String, String> map = jedis.hgetAll("user:1");System.out.println(map);}
}

1.6 可视化工具查看

在这里插入图片描述

工具下载地址：https://github.com/lework/RedisDesktopManager-Windows/releases

2.Jedis的连接池

2.1 代码

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();//最大连接poolConfig.setMaxTotal(8);//最大空闲连接poolConfig.setMaxIdle(8);//最小空闲连接poolConfig.setMinIdle(8);//设置最长等待时间,单位mspoolConfig.setMaxWaitMillis(1000);//创建连接池对象jedisPool = new JedisPool(poolConfig, "255.255.255.255", 6379, 1000, "123456");}//获取Jedis对象public static Jedis getJedis() {return jedisPool.getResource();}
}

2.2 获取连接修改如下

void setUp() {//直接获取连接//jedis = new Jedis("255.255.255.255", 6379);//jedis.auth("123456");//连接池获取连接jedis = JedisConnectionFactory.getJedis();jedis.select(0);
}