springboot redis断开自动重连

可以通过配置 RedisConnectionFactory 的参数来实现 Redis 断开自动重连的功能。具体来说，可以设置 RedisConnectionFactory 的以下参数：

1. setHostName：Redis 服务器的主机名，默认为 localhost。
2. setPort：Redis 服务器的端口号，默认为 6379。
3. setPassword：Redis 服务器的密码，默认为空。
4. setDatabase：Redis 数据库的编号，默认为 0。
5. setUsePool：是否使用连接池，默认为 true。
6. setPoolConfig：连接池的配置信息。

在配置 RedisConnectionFactory 的时候，可以使用 JedisConnectionFactory 或者 LettuceConnectionFactory。其中，JedisConnectionFactory 是基于 Jedis 实现的，而 LettuceConnectionFactory 是基于 Lettuce 实现的。两者的区别可以参考官方文档。

相关问题

springboot自动重连redis

在Spring Boot中，如果Redis连接丢失，它会自动尝试重新连接。这是因为Spring Boot为Redis提供了自动配置，其中包括自动重连功能。如果Redis连接丢失，Spring Boot会尝试重新连接，直到连接成功或达到最大尝试次数。这个最大尝试次数可以在配置文件中进行配置。以下是一个示例配置文件，其中最大尝试次数为5次：

spring.redis.host=127.0.0.1
spring.redis.port=6379
spring.redis.password=
spring.redis.database=0
spring.redis.timeout=10000
spring.redis.lettuce.pool.max-active=8
spring.redis.lettuce.pool.max-idle=8
spring.redis.lettuce.pool.min-idle=0
spring.redis.lettuce.pool.max-wait=-1
spring.redis.lettuce.shutdown-timeout=100
spring.redis.lettuce.pool.test-on-borrow=true
spring.redis.lettuce.pool.test-on-return=false
spring.redis.lettuce.pool.test-while-idle=true
spring.redis.lettuce.pool.time-between-eviction-runs=30000
spring.redis.lettuce.pool.num-tests-per-eviction-run=10
spring.redis.lettuce.pool.min-evictable-idle-time=1800000
spring.redis.lettuce.pool.soft-min-evictable-idle-time=1800000
spring.redis.lettuce.pool.eviction-policy=generic
spring.redis.lettuce.pool.block-when-exhausted=true
spring.redis.lettuce.pool.fairness=false
spring.redis.lettuce.pool.use-equals=false
spring.redis.lettuce.pool.jmx-enabled=true
spring.redis.lettuce.pool.jmx-name-prefix=lettuce.pool
spring.redis.lettuce.pool.jmx-name-base=redis
spring.redis.lettuce.pool.jmx-name-suffix=
spring.redis.lettuce.pool.jmx-use-global-registry=true
spring.redis.lettuce.pool.metrics.enabled=false
spring.redis.lettuce.pool.metrics.names=active, idle, acquire, release, reject, destroy
spring.redis.lettuce.pool.metrics.tags=pool
spring.redis.lettuce.pool.metrics.export.enabled=false
spring.redis.lettuce.pool.metrics.export.names=active, idle, acquire, release, reject, destroy
spring.redis.lettuce.pool.metrics.export.tags=pool
spring.redis.lettuce.client-name=spring-boot-redis
spring.redis.lettuce.shutdown-timeout=100
spring.redis.lettuce.io-threads=0
spring.redis.lettuce.compression=off
spring.redis.lettuce.ssl=false
spring.redis.lettuce.start-tls=false
spring.redis.lettuce.client-options.timeout=0
spring.redis.lettuce.client-options.ping-before-connect=true
spring.redis.lettuce.client-options.disconnected-behavior=DEFAULT
spring.redis.lettuce.client-options.cancel-command-on-pool-shutdown=false
spring.redis.lettuce.client-options.suspend-writer=true
spring.redis.lettuce.client-options.tracing-enabled=false
spring.redis.lettuce.client-options.tracing-shutdown-timeout=100
spring.redis.lettuce.client-options.tracing-compression-enabled=false
spring.redis.lettuce.client-options.tracing-tags=redis
spring.redis.lettuce.client-options.tracing-extra-samples-per-second=0
spring.redis.lettuce.client-options.tracing-force-parent-id=false
spring.redis.lettuce.client-options.tracing-force-span-id=false
spring.redis.lettuce.client-options.tracing-propagation-style=B3
spring.redis.lettuce.client-options.tracing-propagation-format=SINGLE_HEADER
spring.redis.lettuce.client-options.tracing-propagation-field=B3
spring.redis.lettuce.client-options.tracing-propagation-field-format=SINGLE_HEADER
spring.redis.lettuce.client-options.tracing-propagation-field-value-prefix=
spring.redis.lettuce.client-options.tracing-propagation-field-value-suffix=
spring.redis.lettuce.client-options.tracing-propagation-field-value-base64=false
spring.redis.lettuce.client-options.tracing-propagation-field-value-base64-url-safe=false
spring.redis.lettuce.client-options.tracing-propagation-field-value-base64-padding=true
spring.redis.lettuce.client-options.tracing-propagation-field-value-base64-line-length=76
spring.redis.lettuce.client-options.tracing-propagation-field-value-base64-line-separator=\n
spring.redis.lettuce.client-options.tracing-propagation-field-value-base64-url-safe-padding=true
spring.redis.lettuce.client-options.tracing-propagation-field-value-base64-url-safe-line-length=76
spring.redis.lettuce.client-options.tracing-propagation-field-value-base64-url-safe-line-separator=\n
spring.redis.lettuce.client-options.tracing-propagation-field-value-base64-url-safe-alphabet=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_=
spring.redis.lettuce.client-options.tracing-propagation-field-value-base64-url-safe-alphabet-padding=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_=
spring.redis.lettuce.client-options.tracing-propagation-field-value-base64-url-safe-alphabet-line-length=76
spring.redis.lettuce.client-options.tracing-propagation-field-value-base64-url-safe-alphabet-line-separator=\n
spring.redis.lettuce.client-options.tracing-propagation-field-value-base64-url-safe-alphabet-padding-line-length=76
spring.redis.lettuce.client-options.tracing-propagation-field-value-base64-url-safe-alphabet-padding-line-separator=\n

# 最大尝试次数
spring.redis.lettuce.retry.max-attempts=5

springboot redis主从连法

在Spring Boot中使用Redis主从复制，需要在配置文件中指定主从节点的信息。具体步骤如下：

1. 在pom.xml文件中添加Redis和Lettuce的依赖：

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

<dependency>
    <groupId>io.lettuce</groupId>
    <artifactId>lettuce-core</artifactId>
</dependency>

2. 在application.properties文件中配置Redis主从节点的信息：

# Redis主节点
spring.redis.host=192.168.0.1
spring.redis.port=6379

# Redis从节点
spring.redis.cluster.nodes=192.168.0.2:6379,192.168.0.3:6379

3. 在Redis配置类中创建RedisConnectionFactory对象，并设置主从节点信息：

@Configuration
public class RedisConfig {

    @Value("${spring.redis.host}")
    private String host;

    @Value("${spring.redis.port}")
    private int port;

    @Value("${spring.redis.cluster.nodes}")
    private String clusterNodes;

    @Bean
    public RedisConnectionFactory redisConnectionFactory() {
        RedisStandaloneConfiguration standaloneConfig = new RedisStandaloneConfiguration(host, port);
        RedisClusterConfiguration clusterConfig = new RedisClusterConfiguration(Arrays.asList(clusterNodes.split(",")));
        LettuceConnectionFactory connectionFactory = new LettuceConnectionFactory(clusterConfig, standaloneConfig);
        return connectionFactory;
    }

}