详解SpringBoot Redis自适应配置(Cluster Standalone Sentinel)

2023-07-21 22:07:09 139

核心代码段

提供一个JedisConnectionFactory 根据配置来判断单点集群还是哨兵

@Bean
@ConditionalOnMissingBean
publicJedisConnectionFactoryjedisConnectionFactory(){
JedisConnectionFactoryfactory=null;

String[]split=node.split(",");
Setnodes=newLinkedHashSet<>();
for(inti=0;i{
redisClusterConfiguration.addClusterNode(newRedisNode(n.getHost(),n.getPort()));
});
if(!StringUtils.isEmpty(password)){
redisClusterConfiguration.setPassword(RedisPassword.of(password));
}
redisClusterConfiguration.setMaxRedirects(maxRedirect);
factory=newJedisConnectionFactory(redisClusterConfiguration,jedisClientConfiguration);
}
returnfactory;
}

Configration

importcom.fasterxml.jackson.annotation.JsonAutoDetect;
importcom.fasterxml.jackson.annotation.PropertyAccessor;
importcom.fasterxml.jackson.databind.ObjectMapper;
importorg.slf4j.Logger;
importorg.slf4j.LoggerFactory;
importorg.springframework.beans.factory.annotation.Autowired;
importorg.springframework.beans.factory.annotation.Value;
importorg.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
importorg.springframework.cache.Cache;
importorg.springframework.cache.CacheManager;
importorg.springframework.cache.annotation.CachingConfigurerSupport;
importorg.springframework.cache.annotation.EnableCaching;
importorg.springframework.cache.interceptor.CacheErrorHandler;
importorg.springframework.context.annotation.Bean;
importorg.springframework.context.annotation.Configuration;
importorg.springframework.data.redis.cache.RedisCacheManager;
importorg.springframework.data.redis.connection.*;
importorg.springframework.data.redis.connection.jedis.JedisClientConfiguration;
importorg.springframework.data.redis.connection.jedis.JedisConnectionFactory;
importorg.springframework.data.redis.core.RedisTemplate;
importorg.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
importorg.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
importorg.springframework.data.redis.serializer.RedisSerializer;
importorg.springframework.data.redis.serializer.StringRedisSerializer;
importorg.springframework.util.StringUtils;
importredis.clients.jedis.HostAndPort;
importredis.clients.jedis.JedisPoolConfig;

importjava.util.LinkedHashSet;
importjava.util.Set;

/**
*@Authorfoxzzz
*@ClassSelfAdaptionRedisConfig
*@Description自适应redis配置
*适用于单点[主从]哨兵模式集群模式
*@Date2020/7/614:34
*/

@Configuration
@EnableCaching
publicclassSelfAdaptionRedisConfigextendsCachingConfigurerSupport{
privatefinalstaticLoggerlogger=LoggerFactory.getLogger(SelfAdaptionRedisConfig.class);

@Value("${spring.redis.node}")
privateStringnode;
@Value("${spring.redis.timeout:0}")
privateinttimeout;
@Value("${spring.redis.password:}")
privateStringpassword;
@Value("${spring.redis.sentinel:}")
privateStringsentinel;

@Value("${spring.redis.jedis.pool.max-total:8}")
privateintmaxTotal;
@Value("${spring.redis.jedis.pool.max-idle:8}")
privateintmaxIdle;
@Value("${spring.redis.jedis.pool.min-idle:0}")
privateintminIdle;
@Value("${spring.redis.jedis.pool.max-wait:-1}")
privatelongmaxWaitMillis;
@Value("${spring.redis.jedis.pool.test-on-borrow:true}")
privatebooleantestOnBorrow;
@Value("${spring.redis.jedis.factory.max-redirects:5}")
privateintmaxRedirect;


@Autowired
privateJedisPoolConfigjedisPoolConfig;
@Autowired
privateJedisConnectionFactoryjedisConnectionFactory;


@Bean
@ConditionalOnMissingBean
@Override
publicCacheManagercacheManager(){
//初始化缓存管理器，在这里我们可以缓存的整体过期时间什么的，我这里默认没有配置
logger.info("初始化->[{}]","CacheManagerRedisCacheManagerStart");
RedisCacheManager.RedisCacheManagerBuilderbuilder=RedisCacheManager
.RedisCacheManagerBuilder
.fromConnectionFactory(jedisConnectionFactory);
returnbuilder.build();
}


@Bean
@ConditionalOnMissingBean
@Override
publicCacheErrorHandlererrorHandler(){
//异常处理，当Redis发生异常时，打印日志，但是程序正常走
logger.info("初始化->[{}]","RedisCacheErrorHandler");
CacheErrorHandlercacheErrorHandler=newCacheErrorHandler(){
@Override
publicvoidhandleCacheGetError(RuntimeExceptione,Cachecache,Objectkey){
logger.error("RedisoccurhandleCacheGetError：key->[{}]",key,e);
}

@Override
publicvoidhandleCachePutError(RuntimeExceptione,Cachecache,Objectkey,Objectvalue){
logger.error("RedisoccurhandleCachePutError：key->[{}]；value->[{}]",key,value,e);
}

@Override
publicvoidhandleCacheEvictError(RuntimeExceptione,Cachecache,Objectkey){
logger.error("RedisoccurhandleCacheEvictError：key->[{}]",key,e);
}

@Override
publicvoidhandleCacheClearError(RuntimeExceptione,Cachecache){
logger.error("RedisoccurhandleCacheClearError：",e);
}
};
returncacheErrorHandler;
}


@Bean
@ConditionalOnMissingBean
publicJedisPoolConfigjedisPoolConfig(){
JedisPoolConfigconfig=newJedisPoolConfig();
//获取连接时的最大等待毫秒数(如果设置为阻塞时BlockWhenExhausted),如果超时就抛异常,小于零:阻塞不确定的时间,默认-1
config.setMaxWaitMillis(maxWaitMillis);
//最小空闲连接数,默认0
config.setMinIdle(minIdle);
//最大空闲连接数,默认8个
config.setMaxIdle(maxIdle);
//最大连接数,默认值8个
config.setMaxTotal(maxTotal);
//对拿到的connection进行validateObject校验
config.setTestOnBorrow(testOnBorrow);
returnconfig;
}

//privateJedisClustergetJedisCluster(){
//String[]split=node.split(",");
//Setnodes=newLinkedHashSet<>();
//for(inti=0;inodes=newLinkedHashSet<>();
for(inti=0;i{
redisClusterConfiguration.addClusterNode(newRedisNode(n.getHost(),n.getPort()));
});
if(!StringUtils.isEmpty(password)){
redisClusterConfiguration.setPassword(RedisPassword.of(password));
}
redisClusterConfiguration.setMaxRedirects(maxRedirect);
factory=newJedisConnectionFactory(redisClusterConfiguration,jedisClientConfiguration);
}
returnfactory;
}


@Bean
@ConditionalOnMissingBean
publicRedisTemplateredisTemplate(JedisConnectionFactoryjedisConnectionFactory){
//设置序列化
Jackson2JsonRedisSerializerjackson2JsonRedisSerializer=newJackson2JsonRedisSerializer(Object.class);
ObjectMapperom=newObjectMapper();
om.setVisibility(PropertyAccessor.ALL,JsonAutoDetect.Visibility.ANY);
om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
jackson2JsonRedisSerializer.setObjectMapper(om);
//配置redisTemplate
RedisTemplateredisTemplate=newRedisTemplate();
redisTemplate.setConnectionFactory(jedisConnectionFactory);
RedisSerializerstringSerializer=newStringRedisSerializer();
//key序列化
redisTemplate.setKeySerializer(stringSerializer);
//value序列化
redisTemplate.setValueSerializer(newGenericJackson2JsonRedisSerializer());
//redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
//Hashkey序列化
redisTemplate.setHashKeySerializer(stringSerializer);
//Hashvalue序列化
redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);
redisTemplate.afterPropertiesSet();
returnredisTemplate;
}
}

pom依赖



org.springframework.boot
spring-boot-starter-data-redis
${springboot.version}


org.springframework.boot
spring-boot-starter
provided


redis.clients
jedis
${redis.version}



com.fasterxml.jackson.core
jackson-annotations
provided


com.fasterxml.jackson.core
jackson-databind
provided


com.fasterxml.jackson.core
jackson-core
provided

配置文件

1.yml配置

1.1支持Cluster模式集群

node有多个redis的地址,以逗号分隔
如果redis没有密码直接去掉配置就可以了yml配置

spring:
redis:
node:127.0.0.1:1001,127.0.0.1:1002,127.0.0.1:1003
password:123456

properties配置

spring.redis.node=127.0.0.1:1001,127.0.0.1:1002,127.0.0.1:1003
spring.redis.password=123456

1.2支持Standalone模式单点

node里只有一个redis地址的时候,会自动变成单点模式yml配置

spring:
redis:
node:127.0.0.1:1001
password:123456

properties配置

spring.redis.node=127.0.0.1:1001
spring.redis.password=123456

1.3支持Sentinel模式哨兵

当配置上sentinel以后就变成了哨兵模式多个哨兵可以以逗号分割yml配置

spring:
redis:
node:127.0.0.1:1001
sentinel:127.0.0.1:1002,127.0.0.1:1003
password:123456

properties配置

spring.redis.node=127.0.0.1:1001
spring.redis.sentinel:127.0.0.1:1002,127.0.0.1:1003
spring.redis.password=123456

1.4覆盖默认配置

如果没有配置这些信息,就会走默认配置也可以在properties或者yml覆盖默认配置

#最大连接数,默认值8个
spring.redis.jedis.pool.max-total=8
#最大空闲连接数,默认8个
spring.redis.jedis.pool.max-idle=8
#最小空闲连接数,默认0
spring.redis.jedis.pool.min-idle=0
#获取连接时的最大等待毫秒数,如果超时就抛异常,小于零:阻塞不确定的时间,默认-1
spring.redis.jedis.pool.max-wait=-1
#对拿到的connection进行validateObject校验
spring.redis.jedis.pool.test-on-borrow=true
#集群时最大重定向个数默认5
spring.redis.jedis.factory.max-redirects=5

使用

代码使用

@Autowired
privateRedisTemplateredisTemplate;

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详解SpringBoot Redis自适应配置(Cluster Standalone Sentinel)

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