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Java下字节缓冲流的读入和写出

爱动漫建模 2023-09-30 阅读 45

项目场景:

Spring Boot集成Redis集群

单节点配置:

spring.redis.database = 0
spring.redis.host = 127.0.0.1
spring.redis.password = test@redis
spring.redis.port = 8003
# 连接超时时间 单位 ms(毫秒)
spring.redis.timeout = 3000

集群配置:

#集群配置
spring.redis.cluster.nodes = 127.0.0.1:8001,127.0.0.1:8002
spring.redis.database = 0
spring.redis.password = test@redis
# 连接超时时间 单位 ms(毫秒)
spring.redis.timeout = 3000

 maven依赖

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

问题描述

完整错误 :

org.springframework.data.redis.RedisSystemException: Redis exception; nested exception is io.lettuce.core.RedisException: java.lang.UnsupportedOperationException
    at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:74)
    at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:41)
    at org.springframework.data.redis.PassThroughExceptionTranslationStrategy.translate(PassThroughExceptionTranslationStrategy.java:44)
    at org.springframework.data.redis.FallbackExceptionTranslationStrategy.translate(FallbackExceptionTranslationStrategy.java:42)
    at org.springframework.data.redis.connection.lettuce.LettuceConnection.convertLettuceAccessException(LettuceConnection.java:257)
    at org.springframework.data.redis.connection.lettuce.LettuceKeyCommands.convertLettuceAccessException(LettuceKeyCommands.java:650)
    at org.springframework.data.redis.connection.lettuce.LettuceKeyCommands.del(LettuceKeyCommands.java:98)
    at org.springframework.data.redis.connection.DefaultedRedisConnection.del(DefaultedRedisConnection.java:61)
    at org.springframework.data.redis.core.RedisTemplate.lambda$delete$2(RedisTemplate.java:709)
    at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:224)
    at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:184)
    at org.springframework.data.redis.core.RedisTemplate.delete(RedisTemplate.java:709)

原因分析:


解决方案:

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-data-redis</artifactId>
	<!-- 排除低版本,部署的redis版本较高,低版本lettuce会报错java.lang.UnsupportedOperationException -->
	<exclusions>
		<exclusion>
			<artifactId>lettuce-core</artifactId>
			<groupId>io.lettuce</groupId>
		</exclusion>
	</exclusions>
</dependency>
<!-- 引入高版本 -->
<dependency>
	<artifactId>lettuce-core</artifactId>
	<groupId>io.lettuce</groupId>
	<version>6.1.5.RELEASE</version>
</dependency>

关联文章:Spring Boot集成redis集群拓扑动态刷新-CSDN博客

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