Checking Redis @Configuration in SpringBoot

Question

Is there a way to check if @Configuration components are being loaded when run a spring boot app ? I have some 'null pointer' problems when i use this app:

Main class

@ComponentScan(basePackages = "com.pack")
@EnableAutoConfiguration
public class App {

    public static void main(String[] args) {
        SpringApplication.run(App.class, args);
    }
}

Configuration class

package com.pack.config;
@Configuration
public class DataBaseConfig {

    @Bean
    JedisConnectionFactory jedisConnFactory() {    
        return new JedisConnectionFactory();
    }

    @Bean
    public StringRedisSerializer stringRedisSerializer() {
        StringRedisSerializer stringRedisSerializer = new StringRedisSerializer();
        return stringRedisSerializer;
    }

    @Bean(name = "redisTemplate")
    public RedisTemplate<String, Object> redisTemplate() {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate();
        redisTemplate.setConnectionFactory(jedisConnFactory());
        redisTemplate.setKeySerializer(stringRedisSerializer());
        return redisTemplate;
    }
}

And when i try to use RedisTemplate:

public class ServiceDummy  {

    @Autowired
    RedisTemplate<String, Object> redisTemplate;
    public void save(String data){
        redisTemplate.opsForValue().set("1234", data);
    }

}

im getting a nullPointer.

Answer 1

As @Todd correctly pointed out, you can't expect Spring to manage beans that are not registered to Spring context.

So you need to:

1. Mark that bean as Spring bean with @Component annotation, or in this case @Service annotation would be better.
2. Make sure that ServiceDummy is under com.pack package, so that Spring can scan that component.