springboot项目中配置redis详细的教程

<dependencies>
    <!-- 其他依赖项 -->
    
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-redis</artifactId>
    </dependency>
</dependencies>

# Redis 连接信息
spring.redis.host=127.0.0.1
spring.redis.port=6379
spring.redis.password=your_password

# Redis 连接信息
spring:
  redis:
    host: 127.0.0.1
    port: 6379
    password: your_password

import org.springframework.beans.factory.annotation.Value;
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.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

@Configuration
public class RedisConfig {

    // 从配置文件中读取Redis主机信息
    @Value("${spring.redis.host}")
    private String redisHost;

    // 从配置文件中读取Redis端口信息
    @Value("${spring.redis.port}")
    private int redisPort;

    // 配置Redis连接工厂
    @Bean
    public RedisConnectionFactory redisConnectionFactory() {
        // 创建Redis的单机配置
        RedisStandaloneConfiguration config = new RedisStandaloneConfiguration(redisHost, redisPort);
        // 返回Lettuce连接工厂
        return new LettuceConnectionFactory(config);
    }

    // 配置RedisTemplate
    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory connectionFactory) {
        // 创建RedisTemplate实例
        RedisTemplate<String, Object> template = new RedisTemplate<>();
        // 设置连接工厂
        template.setConnectionFactory(connectionFactory);
        // 设置默认的序列化器为GenericJackson2JsonRedisSerializer，用于序列化键和值为JSON格式
        template.setDefaultSerializer(new GenericJackson2JsonRedisSerializer());
        // 设置键的序列化器为StringRedisSerializer
        template.setKeySerializer(new StringRedisSerializer());
        // 设置值的序列化器为GenericJackson2JsonRedisSerializer
        template.setValueSerializer(new GenericJackson2JsonRedisSerializer());
        // 返回配置好的RedisTemplate实例
        return template;
    }
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;

@Service
public class MyService {

    private final RedisTemplate<String, Object> redisTemplate;

    @Autowired
    public MyService(RedisTemplate<String, Object> redisTemplate) {
        this.redisTemplate = redisTemplate;
    }

    public void setValue(String key, Object value) {
        // 使用RedisTemplate的opsForValue()方法获取ValueOperations接口实例，然后调用set()方法存储键值对
        redisTemplate.opsForValue().set(key, value);
    }

    public Object getValue(String key) {
        // 使用RedisTemplate的opsForValue()方法获取ValueOperations接口实例，然后调用get()方法根据键获取值
        return redisTemplate.opsForValue().get(key);
    }

    public void deleteKey(String key) {
        // 调用RedisTemplate的delete()方法根据键删除对应的键值对
        redisTemplate.delete(key);
    }
}