springboot2.4 整合 redis 配置详解

1.pom 依赖

		
	    
	        org.springframework.boot
	        spring-boot-starter-data-redis
	        
		        
		            io.lettuce
		            lettuce-core
		        
		    
	    
	    
		    redis.clients
		    jedis
		

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(默认为空)  
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. config 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
 * 作者:FH
 * java www.fhadmin.org
 */
@Configuration
public class RedisConfig {

	@Bean
	@SuppressWarnings("all")
	public RedisTemplate redisTemplate(RedisConnectionFactory factory) {
		RedisTemplate template = new RedisTemplate();
		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jackson
		template.setValueSerializer(jackson2JsonRedisSerializer);
		// hash的value序列化方式采用jackson
		template.setHashValueSerializer(jackson2JsonRedisSerializer);
		template.afterPropertiesSet();
		return template;
	}

}
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