概述

先将Java对象转化成json字符串，然后Redis存储json字符串

实现过程

引入gson依赖

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<dependency>
	<groupId>com.google.code.gson</groupId>
	<artifactId>gson</artifactId>
	<version>2.8.5</version>
</dependency>

使用到的方法

Jedis.rpop()

右侧弹出元素

Jedis.llen()

获取Redis的list长度

Jedis.rpush()

从右侧开始添加元素

Jedis.lrange()

获取全部元素集合

Gson.toJson()

Java对象转化成json

Gson.fromJson()

json转化成Java对象

Java代码

Fruit实体类

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package com.ledao.jedis;

/**
 * @author LeDao
 * @company
 * @create 2021-06-20 22:30
 */
public class Fruit {

    /**
     * 编号
     */
    private Integer id;
    /**
     * 名称
     */
    private String name;
    /**
     * 数量
     */
    private Integer num;

    public Fruit() {
    }

    public Fruit(String name, Integer num) {
        this.name = name;
        this.num = num;
    }

    public Fruit(Integer id, String name, Integer num) {
        this.id = id;
        this.name = name;
        this.num = num;
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getNum() {
        return num;
    }

    public void setNum(Integer num) {
        this.num = num;
    }

    @Override
    public String toString() {
        return "Fruit{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", num=" + num +
                '}';
    }
}

测试代码

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package com.ledao.jedis;

import com.google.gson.Gson;
import redis.clients.jedis.Jedis;

import java.util.ArrayList;
import java.util.List;

/**
 * @author LeDao
 * @company
 * @create 2021-06-20 7:47
 */
public class JedisTest {

    public static void main(String[] args) {
        Jedis jedis = new Jedis("192.168.0.153", 6379);
        jedis.auth("123456");
        Fruit fruit1 = new Fruit(1, "苹果", 11);
        Fruit fruit2 = new Fruit(2, "梨", 6);
        Fruit fruit3 = new Fruit(3, "油桃", 8);
        List<Fruit> fruitList = new ArrayList<>();
        fruitList.add(fruit1);
        fruitList.add(fruit2);
        fruitList.add(fruit3);
        //转化成json，便于redis存储Java对象
        System.out.println("转化成json：");
        Gson gson = new Gson();
        for (Fruit fruit : fruitList) {
            jedis.rpush("redisFruitList", gson.toJson(fruit));
        }
        //遍历
        List<String> redisFruitList = jedis.lrange("redisFruitList", 0, -1);
        for (String s : redisFruitList) {
            System.out.println(s);
        }
        //Redis的list转化成Java对象
        System.out.println("转化成Java对象：");
        for (int i = 0; i < redisFruitList.size(); i++) {
            Fruit fruit = gson.fromJson(redisFruitList.get(i), Fruit.class);
            System.out.println(fruit.toString());
        }
        //清空redisFruitList
        Long length = jedis.llen("redisFruitList");
        if (length > 0) {
            for (int i = 0; i < length; i++) {
                jedis.rpop("redisFruitList");
            }
        }
        //关闭连接
        jedis.close();
    }
}

结果

img