SpringBoot连接redis哨兵模式集群

一、maven依赖


org.springframework.boot
spring-boot-starter-data-redis



io.lettuce
lettuce-core

二、nacos配置
spring:
redis:
sentinel:
master: mymaster
nodes: sentinel.IP1:6380,sentinel.IP2:24080
password: 123456
timeout: 10s
lettuce:
pool:
# 连接池中的最小空闲连接
min-idle: 0
# 连接池中的最大空闲连接
max-idle: 8
# 连接池的最大数据库连接数
max-active: 8
# #连接池最大阻塞等待时间（使用负值表示没有限制）
max-wait: -1ms
database: 11

三、配置文件配置RedisConfig.java
package com.sms.framework.config;

import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
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.core.script.DefaultRedisScript;
import org.springframework.data.redis.serializer.StringRedisSerializer;

/**

• redis配置

• @author
  */
  @Configuration
  @EnableCaching
  public class RedisConfig extends CachingConfigurerSupport {
  @Bean
  @SuppressWarnings(value = {"unchecked", "rawtypes"})
  public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory connectionFactory) {
  RedisTemplate<Object, Object> template = new RedisTemplate<>();
  template.setConnectionFactory(connectionFactory);

   FastJson2JsonRedisSerializer<?> serializer = new FastJson2JsonRedisSerializer<>(Object.class);
  
   // 使用StringRedisSerializer来序列化和反序列化redis的key值
   template.setKeySerializer(new StringRedisSerializer());
   template.setValueSerializer(serializer);
  
   // Hash的key也采用StringRedisSerializer的序列化方式
   template.setHashKeySerializer(new StringRedisSerializer());
   template.setHashValueSerializer(serializer);
  
   template.afterPropertiesSet();
   return template;
  

  }

  @Bean
  public DefaultRedisScript limitScript() {
  DefaultRedisScript redisScript = new DefaultRedisScript<>();
  redisScript.setScriptText(limitScriptText());
  redisScript.setResultType(Long.class);
  return redisScript;
  }

  /**

  • 限流脚本
    */
    private String limitScriptText() {
    return "local key = KEYS[1]\n" +
    "local count = tonumber(ARGV[1])\n" +
    "local time = tonumber(ARGV[2])\n" +
    "local current = redis.call('get', key);\n" +
    "if current and tonumber(current) > count then\n" +
    " return tonumber(current);\n" +
    "end\n" +
    "current = redis.call('incr', key)\n" +
    "if tonumber(current) == 1 then\n" +
    " redis.call('expire', key, time)\n" +
    "end\n" +
    "return tonumber(current);";
    }
    }

四、在需要用redis的地方注入 redisTemplate

五、启动微服务ok