springboot2.5.0 整合 redis 配置详解

1. pom添加依赖

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

2. application.properties 配置文件

#===========Redis配置===========
# Redis数据库索引(默认为0)
spring.redis.database=0
# Redis服务器地址
spring.redis.host=127.0.0.1
# Redis服务器连接端口
spring.redis.port=6379
# Redis服务器连接密码
spring.redis.password=root
# 连接池最大连接数(使用负值表示没有限制)
spring.redis.pool.max-active=200
# 连接池最大阻塞等待时间(使用负值表示没有限制)
spring.redis.pool.max-wait=-1
# 连接池中的最大空闲连接
spring.redis.pool.max-idle=10
# 连接池中的最小空闲连接
spring.redis.pool.min-idle=0
# 连接超时时间(毫秒)
spring.redis.timeout=2000ms
spring.redis.jedis.pool.max-wait=-1ms
#===========Redis配置===========

3. RedisConfig.java 配置类

package org.fh.config;

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.Jackson2JsonRedisSerializer;import org.springframework.data.redis.serializer.StringRedisSerializer;

import com.fasterxml.jackson.databind.ObjectMapper;import com.fasterxml.jackson.databind.jsontype.impl.LaissezFaireSubTypeValidator;import com.fasterxml.jackson.annotation.PropertyAccessor;import com.fasterxml.jackson.annotation.JsonAutoDetect;

/** *  说明:Redis * from:www.fhadmin.org */@Configurationpublic class RedisConfig {

@Bean@SuppressWarnings("all")public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory) {RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();template.setConnectionFactory(factory);Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);ObjectMapper om = new ObjectMapper();om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);om.activateDefaultTyping(LaissezFaireSubTypeValidator.instance , ObjectMapper.DefaultTyping.NON_FINAL);jackson2JsonRedisSerializer.setObjectMapper(om);StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();// key采用String的序列化方式template.setKeySerializer(stringRedisSerializer);// hash的key也采用String的序列化方式template.setHashKeySerializer(stringRedisSerializer);// value序列化方式采用jacksontemplate.setValueSerializer(jackson2JsonRedisSerializer);// hash的value序列化方式采用jacksontemplate.setHashValueSerializer(jackson2JsonRedisSerializer);template.afterPropertiesSet();return template;}

}

4. 调用redis

@Autowired   private RedisTemplate<String, Object> redisTemplate;

/** * 普通缓存获取 * @param key 键 * @return 值 */public Object get(String key) {return key == null ? null : redisTemplate.opsForValue().get(key);}

/** * 普通缓存放入 * @param key 键 * @param value 值 * @return true成功 false失败 */public boolean set(String key, Object value) {try {redisTemplate.opsForValue().set(key, value);return true;} catch (Exception e) {//e.printStackTrace();return false;}}
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