记一个RedisConfig坑

记一个RedisConfig坑

springboot整合redis，RedisConfig配置lettuceConnectionFactory时遇到的一个坑。

配置文件：

spring:
  redis:
    host: 127.0.0.1
    port: 6379
    password: 123456

RedisConfig：

@Configuration
public class RedisConfig {
    @Bean
    public LettuceConnectionFactory redisConnectionFactory() {
        LettuceConnectionFactory factory = new LettuceConnectionFactory();
        return factory;
    }
    @Bean
    public RedisTemplate<String, Object> redisTemplate(LettuceConnectionFactory redisConnectionFactory) {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(redisConnectionFactory);
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());
        return redisTemplate;
    }
}

连接URI和密码正确且Redis服务正常运行，但是调用 redisTemplate 时报错：Error in execution; nested exception is io.lettuce.core.RedisCommandExecutionException: NOAUTH Authentication required.
百思不得其姐，遂在RedisConfig手动将密码set进去，则可正常运行。

    @Bean
    public LettuceConnectionFactory redisConnectionFactory() {
        LettuceConnectionFactory factory = new LettuceConnectionFactory();
        factory.setPassword("123456");
        return factory;
    }

用自动注入的方式注入LettuceConnectionFactory也可以正常运行。

    // 替代上面的bean
    @Resource
    private LettuceConnectionFactory lettuceConnectionFactory;