Redis安装与测试

①安装，直接安装版本为4.0.1

sudo apt-get install redis-server

启动：

redis-server

redis-cli

测试：

②新建Student表

③查看zhangsan信息

④查看zhangsan的English成绩

⑤修改lisi的Math成绩为88

hset student.lisi Math 88

⑥通过JAVA API操作

官方推荐这些客户端，本次选择Jedis：https://mvnrepository.com/artifact/redis.clients/jedis，下载jar后添加到项目中

a）添加数据

import java.util.Map;
import redis.clients.jedis.Jedis;

public class insert {
    public static void main(String[] args) {
        Jedis jedis = new Jedis("localhost");
        jedis.hset("student.scofield", "English", "66");
        jedis.hset("student.scofield", "Math", "77");
        jedis.hset("student.scofield", "Computer", "88");
        Map<String, String> value = jedis.hgetAll("student.scofield");
        for (Map.Entry<String, String> entry : value.entrySet()) {
            System.out.println(entry.getKey() + ":" + entry.getValue());
        }
    }
}

b）获取数据

import redis.clients.jedis.Jedis;

public class getData {
    public static void main(String[] args) {
        Jedis jedis = new Jedis("localhost");
        String value = jedis.hget("student.scofield", "English");
        System.out.println("scofield's English score is:" + value);
    }
}

⑦关闭Redis服务

redis-cli shutdown