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

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 public JedisConnectionFactory jedisConnectionFactory() { JedisConnectionFactory factory = null; String[] split = node.split(','); Set<HostAndPort> nodes = new LinkedHashSet<>(); for (int i = 0; i < split.length; i++) { try { String[] split1 = split[i].split(':'); nodes.add(new HostAndPort(split1[0], Integer.parseInt(split1[1]))); } catch (Exception e) { throw new RuntimeException(String.format('出现配置错误!请确认node=[%s]是否正确', node)); } } //获得默认的连接池构造器(怎么设计的，为什么不抽象出单独类，供用户使用呢) 有毒 JedisClientConfiguration.JedisPoolingClientConfigurationBuilder jpcb = (JedisClientConfiguration.JedisPoolingClientConfigurationBuilder) JedisClientConfiguration.builder(); //指定jedisPoolConifig来修改默认的连接池构造器（真麻烦，滥用设计模式！） ！！！！ jpcb.poolConfig(jedisPoolConfig); //通过构造器来构造jedis客户端配置 JedisClientConfiguration jedisClientConfiguration = jpcb.build(); //如果是哨兵的模式 if (!StringUtils.isEmpty(sentinel)) { logger.info('Redis use SentinelConfiguration'); RedisSentinelConfiguration redisSentinelConfiguration = new RedisSentinelConfiguration(); String[] sentinelArray = sentinel.split(','); for (String s : sentinelArray) { try { String[] split1 = s.split(':'); redisSentinelConfiguration.addSentinel(new RedisNode(split1[0], Integer.parseInt(split1[1]))); } catch (Exception e) { throw new RuntimeException(String.format('出现配置错误!请确认node=[%s]是否正确', node)); } } factory = new JedisConnectionFactory(redisSentinelConfiguration, jedisClientConfiguration); } //如果是单个节点 用Standalone模式 else if (nodes.size() == 1) { logger.info('Redis use RedisStandaloneConfiguration'); for (HostAndPort n : nodes) { RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration(); if (!StringUtils.isEmpty(password)) { redisStandaloneConfiguration.setPassword(RedisPassword.of(password)); } redisStandaloneConfiguration.setPort(n.getPort()); redisStandaloneConfiguration.setHostName(n.getHost()); factory = new JedisConnectionFactory(redisStandaloneConfiguration, jedisClientConfiguration); } } //集群配置信息实现 else { logger.info('Redis use RedisStandaloneConfiguration'); RedisClusterConfiguration redisClusterConfiguration = new RedisClusterConfiguration(); nodes.forEach(n -> { redisClusterConfiguration.addClusterNode(new RedisNode(n.getHost(), n.getPort())); }); if (!StringUtils.isEmpty(password)) { redisClusterConfiguration.setPassword(RedisPassword.of(password)); } redisClusterConfiguration.setMaxRedirects(maxRedirect); factory = new JedisConnectionFactory(redisClusterConfiguration, jedisClientConfiguration); } return factory; }

Configration

import com.fasterxml.jackson.annotation.JsonAutoDetect;import com.fasterxml.jackson.annotation.PropertyAccessor;import com.fasterxml.jackson.databind.ObjectMapper;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Value;import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;import org.springframework.cache.Cache;import org.springframework.cache.CacheManager;import org.springframework.cache.annotation.CachingConfigurerSupport;import org.springframework.cache.annotation.EnableCaching;import org.springframework.cache.interceptor.CacheErrorHandler;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.data.redis.cache.RedisCacheManager;import org.springframework.data.redis.connection.*;import org.springframework.data.redis.connection.jedis.JedisClientConfiguration;import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;import org.springframework.data.redis.core.RedisTemplate;import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;import org.springframework.data.redis.serializer.RedisSerializer;import org.springframework.data.redis.serializer.StringRedisSerializer;import org.springframework.util.StringUtils;import redis.clients.jedis.HostAndPort;import redis.clients.jedis.JedisPoolConfig; import java.util.LinkedHashSet;import java.util.Set; /** * @Author foxzzz * @Class SelfAdaptionRedisConfig * @Description 自适应redis配置 * 适用于 单点[主从] 哨兵模式 集群模式 * @Date 2020/7/6 14:34 */ @Configuration@EnableCachingpublic class SelfAdaptionRedisConfig<K, V> extends CachingConfigurerSupport { private final static Logger logger = LoggerFactory.getLogger(SelfAdaptionRedisConfig.class); @Value('${spring.redis.node}') private String node; @Value('${spring.redis.timeout:0}') private int timeout; @Value('${spring.redis.password:}') private String password; @Value('${spring.redis.sentinel:}') private String sentinel; @Value('${spring.redis.jedis.pool.max-total:8}') private int maxTotal; @Value('${spring.redis.jedis.pool.max-idle:8}') private int maxIdle; @Value('${spring.redis.jedis.pool.min-idle:0}') private int minIdle; @Value('${spring.redis.jedis.pool.max-wait:-1}') private long maxWaitMillis; @Value('${spring.redis.jedis.pool.test-on-borrow:true}') private boolean testOnBorrow; @Value('${spring.redis.jedis.factory.max-redirects:5}') private int maxRedirect; @Autowired private JedisPoolConfig jedisPoolConfig; @Autowired private JedisConnectionFactory jedisConnectionFactory; @Bean @ConditionalOnMissingBean @Override public CacheManager cacheManager() { // 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 -> [{}]', 'CacheManager RedisCacheManager Start'); RedisCacheManager.RedisCacheManagerBuilder builder = RedisCacheManager .RedisCacheManagerBuilder .fromConnectionFactory(jedisConnectionFactory); return builder.build(); } @Bean @ConditionalOnMissingBean @Override public CacheErrorHandler errorHandler() { // 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 -> [{}]', 'Redis CacheErrorHandler'); CacheErrorHandler cacheErrorHandler = new CacheErrorHandler() { @Override public void handleCacheGetError(RuntimeException e, Cache cache, Object key) { logger.error('Redis occur handleCacheGetError：key -> [{}]', key, e); } @Override public void handleCachePutError(RuntimeException e, Cache cache, Object key, Object value) { logger.error('Redis occur handleCachePutError：key -> [{}]；value -> [{}]', key, value, e); } @Override public void handleCacheEvictError(RuntimeException e, Cache cache, Object key) { logger.error('Redis occur handleCacheEvictError：key -> [{}]', key, e); } @Override public void handleCacheClearError(RuntimeException e, Cache cache) { logger.error('Redis occur handleCacheClearError：', e); } }; return cacheErrorHandler; } @Bean @ConditionalOnMissingBean public JedisPoolConfig jedisPoolConfig() { JedisPoolConfig config = new JedisPoolConfig(); // 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); return config; } // private JedisCluster getJedisCluster() {// String[] split = node.split(',');// Set<HostAndPort> nodes = new LinkedHashSet<>();// for (int i = 0; i < split.length; i++) {// try {// String[] split1 = split[i].split(':');// nodes.add(new HostAndPort(split1[0], Integer.parseInt(split1[1]))));// } catch (Exception e) {// }// }// JedisCluster jedisCluster = null;// if (StringUtils.isEmpty(password)) {// jedisCluster = new JedisCluster(nodes, 5000, 3000, 10, jedisPoolConfig);// } else {// jedisCluster = new JedisCluster(nodes, 5000, 3000, 10, password, jedisPoolConfig);// }// } @Bean @ConditionalOnMissingBean public JedisConnectionFactory jedisConnectionFactory() { JedisConnectionFactory factory = null; String[] split = node.split(','); Set<HostAndPort> nodes = new LinkedHashSet<>(); for (int i = 0; i < split.length; i++) { try { String[] split1 = split[i].split(':'); nodes.add(new HostAndPort(split1[0], Integer.parseInt(split1[1]))); } catch (Exception e) { throw new RuntimeException(String.format('出现配置错误!请确认node=[%s]是否正确', node)); } } //获得默认的连接池构造器(怎么设计的，为什么不抽象出单独类，供用户使用呢) 有毒 JedisClientConfiguration.JedisPoolingClientConfigurationBuilder jpcb = (JedisClientConfiguration.JedisPoolingClientConfigurationBuilder) JedisClientConfiguration.builder(); //指定jedisPoolConifig来修改默认的连接池构造器（真麻烦，滥用设计模式！） ！！！！ jpcb.poolConfig(jedisPoolConfig); //通过构造器来构造jedis客户端配置 JedisClientConfiguration jedisClientConfiguration = jpcb.build(); //如果是哨兵的模式 if (!StringUtils.isEmpty(sentinel)) { logger.info('Redis use SentinelConfiguration'); RedisSentinelConfiguration redisSentinelConfiguration = new RedisSentinelConfiguration(); String[] sentinelArray = sentinel.split(','); for (String s : sentinelArray) { try { String[] split1 = s.split(':'); redisSentinelConfiguration.addSentinel(new RedisNode(split1[0], Integer.parseInt(split1[1]))); } catch (Exception e) { throw new RuntimeException(String.format('出现配置错误!请确认node=[%s]是否正确', node)); } } factory = new JedisConnectionFactory(redisSentinelConfiguration, jedisClientConfiguration); } //如果是单个节点 用Standalone模式 else if (nodes.size() == 1) { logger.info('Redis use RedisStandaloneConfiguration'); for (HostAndPort n : nodes) { RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration(); if (!StringUtils.isEmpty(password)) { redisStandaloneConfiguration.setPassword(RedisPassword.of(password)); } redisStandaloneConfiguration.setPort(n.getPort()); redisStandaloneConfiguration.setHostName(n.getHost()); factory = new JedisConnectionFactory(redisStandaloneConfiguration, jedisClientConfiguration); } } //集群配置信息实现 else { logger.info('Redis use RedisStandaloneConfiguration'); RedisClusterConfiguration redisClusterConfiguration = new RedisClusterConfiguration(); nodes.forEach(n -> { redisClusterConfiguration.addClusterNode(new RedisNode(n.getHost(), n.getPort())); }); if (!StringUtils.isEmpty(password)) { redisClusterConfiguration.setPassword(RedisPassword.of(password)); } redisClusterConfiguration.setMaxRedirects(maxRedirect); factory = new JedisConnectionFactory(redisClusterConfiguration, jedisClientConfiguration); } return factory; } @Bean @ConditionalOnMissingBean public RedisTemplate<String, Object> redisTemplate(JedisConnectionFactory jedisConnectionFactory) { //设置序列化 Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class); ObjectMapper om = new ObjectMapper(); om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY); om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL); jackson2JsonRedisSerializer.setObjectMapper(om); // 配置redisTemplate RedisTemplate<String, Object> redisTemplate = new RedisTemplate<String, Object>(); redisTemplate.setConnectionFactory(jedisConnectionFactory); RedisSerializer stringSerializer = new StringRedisSerializer(); // key序列化 redisTemplate.setKeySerializer(stringSerializer); // value序列化 redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());// redisTemplate.setValueSerializer(jackson2JsonRedisSerializer); // Hash key序列化 redisTemplate.setHashKeySerializer(stringSerializer); // Hash value序列化 redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer); redisTemplate.afterPropertiesSet(); return redisTemplate; }}

pom依赖

<dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> <version>${springboot.version}</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>${redis.version}</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <scope>provided</scope> </dependency> </dependencies>

配置文件

1.yml配置

1.1支持 Cluster模式 集群

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=127.0.0.1:1001,127.0.0.1:1002,127.0.0.1:1003spring.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=127.0.0.1:1001spring.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=127.0.0.1:1001spring.redis.sentinel:127.0.0.1:1002,127.0.0.1:1003spring.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0spring.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-1spring.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5spring.redis.jedis.factory.max-redirects=5

使用

代码使用

@Autowired private RedisTemplate<String, Object> redisTemplate;

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