Spring Boot 2.0 集成使用 Redis

最新推荐文章于 2024-06-14 23:41:47 发布

青年老魏

最新推荐文章于 2024-06-14 23:41:47 发布

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分类专栏： Spring Boot 文章标签： Spring Boot Redis

本文链接：https://blog.youkuaiyun.com/shawearn1027/article/details/83720317

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本文详细介绍了如何在SpringBoot项目中整合Redis，包括Maven依赖引入、配置类编写及使用方法。通过具体代码示例，展示了如何配置Redis连接工厂、序列化方式以及使用RedisTemplate进行数据操作。

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说明

项目基于 Spring boot 2.0.5.RELEASE

正文

1. 引入 Maven 依赖

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

<dependency>
	<groupId>redis.clients</groupId>
	<artifactId>jedis</artifactId>
	<version>2.9.0</version>
</dependency>

2. 编写 RedisConfig 配置类

package com.shawearn.www.redisdemo.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.RedisStandaloneConfiguration;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

@Configuration
public class RedisConfig {

    @Bean("redisStandaloneConfiguration")
    public RedisStandaloneConfiguration redisStandaloneConfiguration() {

        RedisStandaloneConfiguration configuration =
                new RedisStandaloneConfiguration();

        // 从配置中读取 Redis 服务器信息；
        // ......

        return configuration;
    }

    @Bean("redisConnectionFactory")
    public RedisConnectionFactory redisConnectionFactory(
            RedisStandaloneConfiguration redisStandaloneConfiguration) {
        return new JedisConnectionFactory(redisStandaloneConfiguration);
    }

    @Bean("redisTemplate")
    public RedisTemplate redisTemplate(
            RedisConnectionFactory redisConnectionFactory) {

        // 序列化；
        Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer
                = new Jackson2JsonRedisSerializer<Object>(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL,
                JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);

        RedisTemplate<String, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(redisConnectionFactory);

        // 指定相应的序列化类型；
        template.setKeySerializer(new StringRedisSerializer());
        template.setValueSerializer(jackson2JsonRedisSerializer);
        template.setHashKeySerializer(jackson2JsonRedisSerializer);
        template.setHashValueSerializer(jackson2JsonRedisSerializer);
        template.afterPropertiesSet();

        return template;
    }

}

3. 使用

@Autowired
RedisTemplate<String, Object> redisTemplate;

redisTemplate.opsForValue().get(key);