一、Spring boot 整合redis

1.1 启动redis

命令行启动

redis-server
redis-cli

1.2 redis desktop manager

redis 可视化客户端

1.3 常用命令

选择库:默认是0库

select index

查看所有键值对
keys *

二、操作

2.1 依赖包

<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-redis -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
    <version>2.6.7</version>
</dependency>

2.2 配置

没有密码就别设置密码，不然会报错

spring:
  redis:
    host: localhost
    port: 6379

2.3 简单测试

直接使用RedisTemplate将数据存入了，但是由于序列化方式存储的数据不能通过get key获得。

package com.example.demo;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;

@SpringBootTest
public class redisTest {
    @Autowired
    private RedisTemplate redisTemplate;
    public void get(){
        ValueOperations valueOperations = redisTemplate.opsForValue();
        valueOperations.set("name","tom");
        Object name = valueOperations.get("name");
        System.out.println(name.toString());
    }
}

存储结果

2.4 StringRedisTemplate

StringRedisTemplate 会将数据存储到redis库中

package com.example.demo;

import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.ValueOperations;

@SpringBootTest
public class redisTest {
    @Autowired
    private StringRedisTemplate redisTemplate;
    @Test
    public void get(){
        ValueOperations valueOperations = redisTemplate.opsForValue();
        valueOperations.set("age","tom");
        Object name = valueOperations.get("name");
        System.out.println(name.toString());
    }
}