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报错信息：

io.lettuce.core.RedisCommandExecutionException: NOAUTH Authentication required.

Redis密码配置确认无误，但是只要使用Redis存储就报这个异常。很可能是因为配置的spring.redis.password没有被读取到。

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基本依赖：

implementation 'org.springframework.boot:spring-boot-starter'
implementation 'org.springframework.boot:spring-boot-starter-web'
implementation 'org.springframework.boot:spring-boot-starter-security'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
// redis
implementation 'org.springframework.boot:spring-boot-starter-data-redis'

基本设置（application.properties）：

spring.redis.host=127.0.0.1
spring.redis.port=6379
spring.redis.password=your_password
spring.redis.database=0
spring.redis.timeout=3000

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解决方法：

@Configuration
public class RedisConfig {@Value("${spring.redis.password}")private String redisPassword;@Value("${spring.redis.host}")private String redisHost;@Value("${spring.redis.port}")private int redisPort;/*** 解决redis认证报错问题：io.lettuce.core.RedisCommandExecutionException: NOAUTH Authentication required.** @return*/@Beanpublic LettuceConnectionFactory redisConnectionFactory() {return new LettuceConnectionFactory(new RedisStandaloneConfiguration(redisHost, redisPort) {{setPassword(RedisPassword.of(redisPassword));}});}
}