Springboot-redis-custer redis集羣的集成

1.添加依賴包

     注意引用包適用於springboot2.*版本

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-data-redis</artifactId>
   <version>2.2.0.RELEASE</version>
</dependency>

2.yml文件配置

spring:
  application:
    name: credit        #服務名稱
  redis:                #redis的配置
    timeout: 6000       # 連接超時時長（毫秒）
    cluster:
      nodes: IP:7000,IP:7001,IP:7002,IP:7003,IP:7004,IP:7005  # 三主 三從

3.代碼配置

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
@Component
@ConfigurationProperties(prefix = "spring.redis")
public class RedisProperties {
}


import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.data.redis.RedisProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
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.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.core.RedisOperations;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

@Configuration
@EnableCaching
@ConditionalOnClass(RedisOperations.class)
@EnableConfigurationProperties(RedisProperties.class)
public class RedisCacheConfig {
    private LettuceConnectionFactory lettuceConnectionFactory;
    @Autowired
    public RedisCacheConfig(LettuceConnectionFactory lettuceConnectionFactory) {
        // 依賴注入LettuceConnectionFactory工廠類
        // LettuceConnectionConfiguration自動注入了含lettuce Pool連接池和集羣Cluster的LettuceConnectionFactory連接工廠類
        this.lettuceConnectionFactory = lettuceConnectionFactory;
    }
    @Bean
    RedisTemplate<String, Object> lettuceRedisTemplate() {
        // 設置序列化
        Jackson2JsonRedisSerializer<String> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<String>(String.class);
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(objectMapper);
        // 配置redisTemplate
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<String, Object>();
        redisTemplate.setConnectionFactory(lettuceConnectionFactory);
        RedisSerializer<?> stringSerializer = new StringRedisSerializer();
        // key 序列化
        redisTemplate.setKeySerializer(stringSerializer);
        // value 序列化
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
        // Hash Key序列化
        redisTemplate.setHashKeySerializer(stringSerializer);
        // Hash Value 序列化
        redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);
        // 初始化賦值
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }
    @Bean
    @ConditionalOnMissingBean(name = "redisTemplate")
    public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory connectionFactory) {
        RedisTemplate<Object, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(connectionFactory);
        Jackson2JsonRedisSerializer serializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper mapper = new ObjectMapper();
        mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        mapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        serializer.setObjectMapper(mapper);
        template.setValueSerializer(serializer);
        template.setKeySerializer(new StringRedisSerializer());
        template.afterPropertiesSet();
        return template;
    }
    @Bean
    @ConditionalOnMissingBean(StringRedisTemplate.class)
    public StringRedisTemplate stringRedisTemplate(RedisConnectionFactory redisConnectionFactory) {
        StringRedisTemplate template = new StringRedisTemplate();
        template.setConnectionFactory(redisConnectionFactory);
        return template;
    }
}

4.使用

注入已經配置好的redisTemplate 或者 StringRedisTemplate就可以正常引用redisTemplate做redis的操作了。

@Autowired
private RedisTemplate redisTemplate;