[Spring] Spring Annotations of @EnableConfigurationProperties

A, @ EnableConfigurationProperties annotation role

　Support for the bean can @ConfigurationProperties annotations.
   Simple to understand: May not be annotated @Bean or other bean registered in our class configuration, the register to comment Bean container through @EnableConfigurationProperties the configuration class.

 

Second, the use of case notes @ EnableConfigurationProperties

For example RedisAutoConfiguration class, you need to register RedisProperties configuration class is this way.

@Configuration
@ConditionalOnClass(RedisOperations.class)
@EnableConfigurationProperties(RedisProperties.class)
@Import({ LettuceConnectionConfiguration.class, JedisConnectionConfiguration.class })
public class RedisAutoConfiguration {
　...
}

No other annotations on RedisProperties @Component plus class, may be registered in the Spring container

@ConfigurationProperties(prefix = "spring.redis")
public class RedisProperties {
...
}