Spring Data Redis使用方式

1.导入Spring Data Redis的maven坐标

pom.xml

<dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-data-redis</artifactId>

</dependency>

2. 配置Redis数据源

2.1application.yml文件

  datasource:
    druid:
      driver-class-name: ${sky.datasource.driver-class-name}
      url: jdbc:mysql://${sky.datasource.host}:${sky.datasource.port}/${sky.datasource.database}?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true
      username: ${sky.datasource.username}
      password: ${sky.datasource.password}
#      redis数据连接
  redis:
    host: ${sky.redis.host}
    port: ${sky.redis.port}
    password: ${sky.redis.password}
    database: ${sky.redis.database} 

2.2application-dev.yml文件

sky:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    host: localhost
    port: 3306
    database: sky_take_out
    username: root
    password: 123456

  redis:
    host: localhost
    port: 6379
    password: 123456
    database: 10

3. 编写配置类，创建RedisTemplate对象

package com.sky.config;

import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.StringRedisSerializer;

@Configuration
@Slf4j

public class RedisConfiguration {
    @Bean
    public RedisTemplate redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        log.info("开始创建redis");
        RedisTemplate redisTemplate = new RedisTemplate();
// 设置redis的连接工厂对象
        redisTemplate.setConnectionFactory(redisConnectionFactory);
//  设置redis key的序列化器
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        return redisTemplate;
    }
}

4.通过RedisTemplate对象操作Redis

说明：编写测试类

package com.sky.test;

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.*;

import java.sql.Time;
import java.util.concurrent.TimeUnit;

@SpringBootTest
public class SpringDataRedisTest {
    @Autowired
    private RedisTemplate redisTemplate;

    @Test
    public void testRedisTemplate() {
        System.out.println(redisTemplate);
        ValueOperations valueOperations = redisTemplate.opsForValue();
        HashOperations hashOperations = redisTemplate.opsForHash();
        ListOperations listOperations = redisTemplate.opsForList();
        SetOperations setOperations = redisTemplate.opsForSet();
    }

    /*操作字符串类型的数据
     *
     * */

    @Test
    public void testString() {
        //set get setex setnx
        redisTemplate.opsForValue().set("city", "北京");
        String city = (String) redisTemplate.opsForValue().get("city");
        System.out.println(city);
        redisTemplate.opsForValue().set("code","1234",3, TimeUnit.MINUTES);
//        setnx
        redisTemplate.opsForValue().setIfAbsent("lock","1");
        redisTemplate.opsForValue().setIfAbsent("lock","2");
    }
}

5.结果