今天小编给大家分享一下SpringBoot项目如何接入Redis集群的相关知识点,内容详细,逻辑清晰,相信大部分人都还太了解这方面的知识,所以分享这篇文章给大家参考一下,希望大家阅读完这篇文章后有所收获,下面我们一起来了解一下吧。
配置参数
因为这篇文章不介绍 Redis
集群的搭建,这里我们假设已经有了一个 Redis 的集群环境,我们项目中需要调整以下几个部分
修改配置参数,集群的节点和密码配置;
确保引入的
Jedis
版本支持设置密码,spring-data-redis
1.8 以上,SpringBoot
1.5 以上才支持设置密码;注入
RedisTemplate
;编写工具类;
修改配置参数
############### Redis 集群配置 #########################spring.custome.redis.cluster.nodes=172.20.0.1:7001,172.20.0.2:7002,172.20.0.3:7003spring.custome.redis.cluster.max-redirects=3spring.custome.redis.cluster.max-active=500spring.custome.redis.cluster.max-wait=-1spring.custome.redis.cluster.max-idle=500spring.custome.redis.cluster.min-idle=20spring.custome.redis.cluster.timeout=3000spring.custome.redis.cluster.password=redis.cluster.password
引入依赖(如果需要)
确保 SpringBoot 的版本大于 1.4.x 如果不是的话,采用如下配置,先排除 SpringBoot
中旧版本 Jedis
和 spring-data-redis
,再依赖高版本的 Jedis
和 spring-data-redis
。
org.springframework.boot spring-boot-starter-data-redis redis.clients jedis org.springframework.data spring-data-redis redis.clients jedis 2.9.0 org.springframework.data spring-data-redis 1.8.0.RELEASE
注入 RedisTemplate
注入 RedisTemplate
我们需要三个组件,分别是JedisConnectionFactory
、RedisClusterConfiguration
、JedisPoolConfig
,下面是注入RedisTempalte
的代码。先根据配置创建 JedisConnectFactory
同时需要配置 RedisClusterConfiguration
、JedisPoolConfig
,最后将JedisConnectionFactory
返回用于创建RedisTemplate
import com.fasterxml.jackson.annotation.JsonAutoDetect;import com.fasterxml.jackson.annotation.PropertyAccessor;import com.fasterxml.jackson.databind.ObjectMapper;import org.apache.commons.pool2.impl.GenericObjectPoolConfig;import org.springframework.beans.factory.annotation.Value;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Primary;import org.springframework.data.redis.connection.RedisClusterConfiguration;import org.springframework.data.redis.connection.RedisNode;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.Jackson2JsonRedisSerializer;import org.springframework.data.redis.serializer.StringRedisSerializer;import java.time.Duration;import java.util.ArrayList;import java.util.List;public class RedisClusterConfig { @Bean(name = "redisTemplate") @Primary public RedisTemplate redisClusterTemplate(@Value("${spring.custome.redis.cluster.nodes}") String host, @Value("${spring.custome.redis.cluster.password}") String password, @Value("${spring.custome.redis.cluster.timeout}") long timeout, @Value("${spring.custome.redis.cluster.max-redirects}") int maxRedirect, @Value("${spring.custome.redis.cluster.max-active}") int maxActive, @Value("${spring.custome.redis.cluster.max-wait}") int maxWait, @Value("${spring.custome.redis.cluster.max-idle}") int maxIdle, @Value("${spring.custome.redis.cluster.min-idle}") int minIdle) { JedisConnectionFactory connectionFactory = jedisClusterConnectionFactory(host, password, timeout, maxRedirect, maxActive, maxWait, maxIdle, minIdle); return createRedisClusterTemplate(connectionFactory); } private JedisConnectionFactory jedisClusterConnectionFactory(String host, String password, long timeout, int maxRedirect, int maxActive, int maxWait, int maxIdle, int minIdle) { RedisClusterConfiguration redisClusterConfiguration = new RedisClusterConfiguration(); List nodeList = new ArrayList(); String[] cNodes = host.split(","); //分割出集群节点 for (String node : cNodes) { String[] hp = node.split(":"); nodeList.add(new RedisNode(hp[0], Integer.parseInt(hp[1]))); } redisClusterConfiguration.setClusterNodes(nodeList); redisClusterConfiguration.setPassword(password); redisClusterConfiguration.setMaxRedirects(maxRedirect); // 连接池通用配置 GenericObjectPoolConfig genericObjectPoolConfig = new GenericObjectPoolConfig(); genericObjectPoolConfig.setMaxIdle(maxIdle); genericObjectPoolConfig.setMaxTotal(maxActive); genericObjectPoolConfig.setMinIdle(minIdle); genericObjectPoolConfig.setMaxWaitMillis(maxWait); genericObjectPoolConfig.setTestWhileIdle(true); genericObjectPoolConfig.setTimeBetweenEvictionRunsMillis(300000); JedisClientConfiguration.DefaultJedisClientConfigurationBuilder builder = (JedisClientConfiguration.DefaultJedisClientConfigurationBuilder) JedisClientConfiguration .builder(); builder.connectTimeout(Duration.ofSeconds(timeout)); builder.usePooling(); builder.poolConfig(genericObjectPoolConfig); JedisConnectionFactory connectionFactory = new JedisConnectionFactory(redisClusterConfiguration, builder.build()); // 连接池初始化 connectionFactory.afterPropertiesSet(); return connectionFactory; } private RedisTemplate createRedisClusterTemplate(JedisConnectionFactory redisConnectionFactory) { RedisTemplate redisTemplate = new RedisTemplate(); redisTemplate.setConnectionFactory(redisConnectionFactory); Jackson2JsonRedisSerializer<Object> 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); StringRedisSerializer stringRedisSerializer = new StringRedisSerializer(); // key采用String的序列化方式 redisTemplate.setKeySerializer(stringRedisSerializer); // hash的key也采用String的序列化方式 redisTemplate.setHashKeySerializer(stringRedisSerializer); // value序列化方式采用jackson redisTemplate.setValueSerializer(jackson2JsonRedisSerializer); // hash的value序列化方式采用jackson redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer); redisTemplate.afterPropertiesSet(); return redisTemplate; }}
编写工具类
其实到这里基本上已经完成了,我们可以看到 SpringBoot
项目接入 Redis
集群还是比较简单的,而且如果之前单机环境就是采用RedisTemplate
的话,现在也就不需要编写工具类,之前的操作依旧有效。
public boolean delete(String key) { try { return getTemplate().delete(key); } catch (Exception e) { log.error("redis hasKey() is error"); return false; } } public Object get(String key) { return key == null ? null : getTemplate().opsForValue().get(key); } public boolean set(String key, Object value) { try { getTemplate().opsForValue().set(key, value); return true; } catch (Exception e) { log.error("redis set() is error"); return false; } } public boolean set(String key, Object value, long time) { try { if (time > 0) { getTemplate().opsForValue().set(key, value, time, TimeUnit.SECONDS); } else { set(key, value); } return true; } catch (Exception e) { log.error("redis set() is error"); return false; } } public Long incr(String key) { return getTemplate().opsForValue().increment(key); } public Long incrBy(String key, long step) { return getTemplate().opsForValue().increment(key, step); } public Object hget(String key, String item) { return getTemplate().opsForHash().get(key, item); } public Map hmget(String key) { return getTemplate().opsForHash().entries(key); } public List<Object> hmget(String key, List values) { return getTemplate().opsForHash().multiGet(key, values); }
以上就是“SpringBoot项目如何接入Redis集群”这篇文章的所有内容,感谢各位的阅读!相信大家阅读完这篇文章都有很大的收获,小编每天都会为大家更新不同的知识,如果还想学习更多的知识,请关注编程网行业资讯频道。